Merge remote-tracking branch 'upstream/master'

cognitive_mapping_and_planning/output/.gitignore

+* 

cognitive_mapping_and_planning/output/README.md

+### Pre-Trained Models
+
+We provide the following pre-trained models:
+
+Config Name                            | Checkpoint                                                                                                                            | Mean Dist. | 50%ile Dist. | 75%ile Dist. | Success %age |
+:-:                                    | :-:                                                                                                                                   | :-:        | :-:          | :-:          | :-:          |
+cmp.lmap_Msc.clip5.sbpd_d_r2r          | [ckpt](http://download.tensorflow.org/models/cognitive_mapping_and_planning/2017_04_16/cmp.lmap_Msc.clip5.sbpd_d_r2r.tar)             | 4.79       | 0            | 1            | 78.9         |
+cmp.lmap_Msc.clip5.sbpd_rgb_r2r        | [ckpt](http://download.tensorflow.org/models/cognitive_mapping_and_planning/2017_04_16/cmp.lmap_Msc.clip5.sbpd_rgb_r2r.tar)           | 7.74       | 0            | 14           | 62.4         |
+cmp.lmap_Msc.clip5.sbpd_d_ST           | [ckpt](http://download.tensorflow.org/models/cognitive_mapping_and_planning/2017_04_16/cmp.lmap_Msc.clip5.sbpd_d_ST.tar)              | 10.67      | 9            | 19           | 39.7         |
+cmp.lmap_Msc.clip5.sbpd_rgb_ST         | [ckpt](http://download.tensorflow.org/models/cognitive_mapping_and_planning/2017_04_16/cmp.lmap_Msc.clip5.sbpd_rgb_ST.tar)            | 11.27      | 10           | 19           | 35.6         |
+cmp.lmap_Msc.clip5.sbpd_d_r2r_h0_64_80 | [ckpt](http:////download.tensorflow.org/models/cognitive_mapping_and_planning/2017_04_16/cmp.lmap_Msc.clip5.sbpd_d_r2r_h0_64_80.tar) | 11.6       | 0            | 19           | 66.9         |
+bl.v2.noclip.sbpd_d_r2r                | [ckpt](http://download.tensorflow.org/models/cognitive_mapping_and_planning/2017_04_16/bl.v2.noclip.sbpd_d_r2r.tar)                   | 5.90       | 0            | 6            | 71.2         |
+bl.v2.noclip.sbpd_rgb_r2r              | [ckpt](http://download.tensorflow.org/models/cognitive_mapping_and_planning/2017_04_16/bl.v2.noclip.sbpd_rgb_r2r.tar)                 | 10.21      | 1            | 21           | 53.4         |
+bl.v2.noclip.sbpd_d_ST                 | [ckpt](http://download.tensorflow.org/models/cognitive_mapping_and_planning/2017_04_16/bl.v2.noclip.sbpd_d_ST.tar)                    | 13.29      | 14           | 23           | 28.0         |
+bl.v2.noclip.sbpd_rgb_ST               | [ckpt](http://download.tensorflow.org/models/cognitive_mapping_and_planning/2017_04_16/bl.v2.noclip.sbpd_rgb_ST.tar)                  | 13.37      | 13           | 20           | 24.2         |
+bl.v2.noclip.sbpd_d_r2r_h0_64_80       | [ckpt](http:////download.tensorflow.org/models/cognitive_mapping_and_planning/2017_04_16/bl.v2.noclip.sbpd_d_r2r_h0_64_80.tar)       | 15.30      | 0            | 29           | 57.9         |

cognitive_mapping_and_planning/patches/GLES2_2_0.py.patch

+10c10
+< from OpenGL import platform, constant, arrays
+---
+> from OpenGL import platform, constant, arrays, contextdata
+249a250
+> from OpenGL._bytes import _NULL_8_BYTE
+399c400
+<     array = ArrayDatatype.asArray( pointer, type )
+---
+>     array = arrays.ArrayDatatype.asArray( pointer, type )
+405c406
+<         ArrayDatatype.voidDataPointer( array )
+---
+>         arrays.ArrayDatatype.voidDataPointer( array )

cognitive_mapping_and_planning/patches/apply_patches.sh

+# Copyright 2016 The TensorFlow Authors All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==============================================================================
+
+echo $VIRTUAL_ENV
+patch $VIRTUAL_ENV/local/lib/python2.7/site-packages/OpenGL/GLES2/VERSION/GLES2_2_0.py patches/GLES2_2_0.py.patch
+patch $VIRTUAL_ENV/local/lib/python2.7/site-packages/OpenGL/platform/ctypesloader.py patches/ctypesloader.py.patch

cognitive_mapping_and_planning/patches/ctypesloader.py.patch

+45c45,46
+<         return dllType( name, mode )
+---
+>         print './' + name
+>         return dllType( './' + name, mode )
+47,48c48,53
+<         err.args += (name,fullName)
+<         raise
+---
+>         try:
+>             print name
+>             return dllType( name, mode )
+>         except:
+>             err.args += (name,fullName)
+>             raise

cognitive_mapping_and_planning/render/depth_rgb_encoded.fp

+// This shader computes per-pixel depth (-z coordinate in the camera space, or
+// orthogonal distance to the camera plane). The result is multiplied by the
+// `kFixedPointFraction` constant and is encoded to RGB channels as an integer
+// (R being the least significant byte).
+
+#ifdef GL_ES
+#ifdef GL_FRAGMENT_PRECISION_HIGH
+precision highp float;
+#else
+precision mediump float;
+#endif
+#endif
+
+const float kFixedPointFraction = 1000.0;
+
+varying float vDepth;
+
+void main(void) {
+  float d = vDepth;
+
+  // Encode the depth to RGB.
+  d *= (kFixedPointFraction / 255.0);
+  gl_FragColor.r = mod(d, 1.0);
+  d = (d - gl_FragColor.r) / 255.0;
+  gl_FragColor.g = mod(d, 1.0);
+  d = (d - gl_FragColor.g) / 255.0;
+  gl_FragColor.b = mod(d, 1.0);
+
+  gl_FragColor.a = 1.0;
+}

cognitive_mapping_and_planning/render/depth_rgb_encoded.vp

+uniform mat4 uViewMatrix;
+uniform mat4 uProjectionMatrix;
+
+attribute vec3 aPosition;
+
+varying float vDepth;
+
+void main(void) {
+  vec4 worldPosition = vec4(aPosition, 1.0);
+  vec4 viewPosition = uViewMatrix * worldPosition;
+  gl_Position = uProjectionMatrix * viewPosition;
+
+  // Orthogonal depth is simply -z in the camera space.
+  vDepth = -viewPosition.z;
+}

cognitive_mapping_and_planning/render/rgb_flat_color.fp

+precision highp float;
+varying vec4 vColor;
+varying vec2 vTextureCoord;
+
+uniform sampler2D uTexture;
+
+void main(void) {
+  vec4 color = vColor;
+  color = texture2D(uTexture, vTextureCoord);
+  gl_FragColor = color;
+}

cognitive_mapping_and_planning/render/rgb_flat_color.vp

+uniform mat4 uViewMatrix;
+uniform mat4 uProjectionMatrix;
+uniform vec4 uColor;
+
+attribute vec4 aColor;
+attribute vec3 aPosition;
+attribute vec2 aTextureCoord;
+
+varying vec4 vColor;
+varying vec2 vTextureCoord;
+
+void main(void) {
+  vec4 worldPosition = vec4(aPosition, 1.0);
+  gl_Position = uProjectionMatrix * (uViewMatrix * worldPosition);
+
+  vColor = aColor * uColor;
+  vTextureCoord = aTextureCoord;
+}

cognitive_mapping_and_planning/render/swiftshader_renderer.py

+# Copyright 2016 The TensorFlow Authors All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==============================================================================
+
+r"""Implements loading and rendering of meshes. Contains 2 classes:
+  Shape: Class that exposes high level functions for loading and manipulating
+    shapes. This currently is bound to assimp
+    (https://github.com/assimp/assimp). If you want to interface to a different
+    library, reimplement this class with bindings to your mesh loading library.
+
+  SwiftshaderRenderer: Class that renders Shapes. Currently this uses python
+    bindings to OpenGL (EGL), bindings to an alternate renderer may be implemented
+    here. 
+"""
+
+import numpy as np, os
+import cv2, ctypes, logging, os, numpy as np
+import pyassimp as assimp
+from OpenGL.GLES2 import *
+from OpenGL.EGL import *
+import src.rotation_utils as ru 
+
+__version__ = 'swiftshader_renderer'
+
+def get_shaders(modalities):
+  rgb_shader = 'rgb_flat_color' if 'rgb' in modalities else None
+  d_shader = 'depth_rgb_encoded' if 'depth' in modalities else None
+  return rgb_shader, d_shader
+
+def sample_points_on_faces(vs, fs, rng, n_samples_per_face):
+  idx = np.repeat(np.arange(fs.shape[0]), n_samples_per_face)
+  
+  r = rng.rand(idx.size, 2)
+  r1 = r[:,:1]; r2 = r[:,1:]; sqrt_r1 = np.sqrt(r1);
+  
+  v1 = vs[fs[idx, 0], :]; v2 = vs[fs[idx, 1], :]; v3 = vs[fs[idx, 2], :];
+  pts = (1-sqrt_r1)*v1 + sqrt_r1*(1-r2)*v2 + sqrt_r1*r2*v3
+  
+  v1 = vs[fs[:,0], :]; v2 = vs[fs[:, 1], :]; v3 = vs[fs[:, 2], :];
+  ar = 0.5*np.sqrt(np.sum(np.cross(v1-v3, v2-v3)**2, 1))
+  
+  return pts, ar, idx
+
+class Shape():
+  def get_pyassimp_load_options(self):
+    load_flags = assimp.postprocess.aiProcess_Triangulate;
+    load_flags = load_flags | assimp.postprocess.aiProcess_SortByPType;
+    load_flags = load_flags | assimp.postprocess.aiProcess_OptimizeMeshes;
+    load_flags = load_flags | assimp.postprocess.aiProcess_RemoveRedundantMaterials;
+    load_flags = load_flags | assimp.postprocess.aiProcess_FindDegenerates;
+    load_flags = load_flags | assimp.postprocess.aiProcess_GenSmoothNormals;
+    load_flags = load_flags | assimp.postprocess.aiProcess_JoinIdenticalVertices;
+    load_flags = load_flags | assimp.postprocess.aiProcess_ImproveCacheLocality;
+    load_flags = load_flags | assimp.postprocess.aiProcess_GenUVCoords;
+    load_flags = load_flags | assimp.postprocess.aiProcess_FindInvalidData;
+    return load_flags
+
+  def __init__(self, obj_file, material_file=None, load_materials=True,
+               name_prefix='', name_suffix=''):
+    if material_file is not None:
+      logging.error('Ignoring material file input, reading them off obj file.')
+    load_flags = self.get_pyassimp_load_options()
+    scene = assimp.load(obj_file, processing=load_flags)
+    filter_ind = self._filter_triangles(scene.meshes)
+    self.meshes = [scene.meshes[i] for i in filter_ind]
+    for m in self.meshes:
+      m.name = name_prefix + m.name + name_suffix
+
+    dir_name = os.path.dirname(obj_file)
+    # Load materials
+    materials = None
+    if load_materials:
+      materials = []
+      for m in self.meshes:
+        file_name = os.path.join(dir_name, m.material.properties[('file', 1)])
+        assert(os.path.exists(file_name)), \
+            'Texture file {:s} foes not exist.'.format(file_name)
+        img_rgb = cv2.imread(file_name)[::-1,:,::-1]
+        if img_rgb.shape[0] != img_rgb.shape[1]:
+          logging.warn('Texture image not square.')
+          sz = np.maximum(img_rgb.shape[0], img_rgb.shape[1])
+          sz = int(np.power(2., np.ceil(np.log2(sz))))
+          img_rgb = cv2.resize(img_rgb, (sz,sz), interpolation=cv2.INTER_LINEAR)
+        else:
+          sz = img_rgb.shape[0]
+          sz_ = int(np.power(2., np.ceil(np.log2(sz))))
+          if sz != sz_:
+            logging.warn('Texture image not square of power of 2 size. ' +
+                         'Changing size from %d to %d.', sz, sz_)
+            sz = sz_
+            img_rgb = cv2.resize(img_rgb, (sz,sz), interpolation=cv2.INTER_LINEAR)
+        materials.append(img_rgb)
+    self.scene = scene
+    self.materials = materials
+
+  def _filter_triangles(self, meshes):
+    select = []
+    for i in range(len(meshes)):
+      if meshes[i].primitivetypes == 4:
+        select.append(i)
+    return select
+
+  def flip_shape(self):
+    for m in self.meshes:
+      m.vertices[:,1] = -m.vertices[:,1]
+      bb = m.faces*1
+      bb[:,1] = m.faces[:,2]
+      bb[:,2] = m.faces[:,1]
+      m.faces = bb
+      # m.vertices[:,[0,1]] = m.vertices[:,[1,0]]
+
+  def get_vertices(self):
+    vs = []
+    for m in self.meshes:
+      vs.append(m.vertices)
+    vss = np.concatenate(vs, axis=0)
+    return vss, vs
+
+  def get_faces(self):
+    vs = []
+    for m in self.meshes:
+      v = m.faces
+      vs.append(v)
+    return vs
+
+  def get_number_of_meshes(self):
+    return len(self.meshes)
+
+  def scale(self, sx=1., sy=1., sz=1.):
+    pass
+
+  def sample_points_on_face_of_shape(self, i, n_samples_per_face, sc):
+    v = self.meshes[i].vertices*sc
+    f = self.meshes[i].faces
+    p, face_areas, face_idx = sample_points_on_faces(
+        v, f, np.random.RandomState(0), n_samples_per_face)
+    return p, face_areas, face_idx
+  
+  def __del__(self):
+    scene = self.scene
+    assimp.release(scene)
+
+class SwiftshaderRenderer():
+  def __init__(self):
+    self.entities = {}
+
+  def init_display(self, width, height, fov, z_near, z_far, rgb_shader,
+                   d_shader):
+    self.init_renderer_egl(width, height)
+    dir_path = os.path.dirname(os.path.realpath(__file__))
+    if d_shader is not None and rgb_shader is not None:
+      logging.fatal('Does not support setting both rgb_shader and d_shader.')
+    
+    if d_shader is not None:
+      assert rgb_shader is None
+      shader = d_shader
+      self.modality = 'depth'
+    
+    if rgb_shader is not None:
+      assert d_shader is None
+      shader = rgb_shader
+      self.modality = 'rgb'
+    
+    self.create_shaders(os.path.join(dir_path, shader+'.vp'),
+                        os.path.join(dir_path, shader + '.fp'))
+    aspect = width*1./(height*1.)
+    self.set_camera(fov, z_near, z_far, aspect)
+
+  def init_renderer_egl(self, width, height):
+    major,minor = ctypes.c_long(),ctypes.c_long()
+    logging.info('init_renderer_egl: EGL_DEFAULT_DISPLAY: %s', EGL_DEFAULT_DISPLAY)
+
+    egl_display = eglGetDisplay(EGL_DEFAULT_DISPLAY)
+    logging.info('init_renderer_egl: egl_display: %s', egl_display)
+
+    eglInitialize(egl_display, major, minor)
+    logging.info('init_renderer_egl: EGL_OPENGL_API, EGL_OPENGL_ES_API: %s, %s',
+                 EGL_OPENGL_API, EGL_OPENGL_ES_API)
+    eglBindAPI(EGL_OPENGL_ES_API)
+
+    num_configs = ctypes.c_long()
+    configs = (EGLConfig*1)()
+    local_attributes = [EGL_RED_SIZE, 8, EGL_GREEN_SIZE, 8, EGL_BLUE_SIZE, 8,
+                        EGL_DEPTH_SIZE, 16, EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,
+                        EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, EGL_NONE,]
+    logging.error('init_renderer_egl: local attributes: %s', local_attributes)
+    local_attributes = arrays.GLintArray.asArray(local_attributes)
+    success = eglChooseConfig(egl_display, local_attributes, configs, 1, num_configs)
+    logging.error('init_renderer_egl: eglChooseConfig success, num_configs: %d, %d', success, num_configs.value)
+    egl_config = configs[0]
+
+
+    context_attributes = [EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE]
+    context_attributes = arrays.GLintArray.asArray(context_attributes)
+    egl_context = eglCreateContext(egl_display, egl_config, EGL_NO_CONTEXT, context_attributes)
+
+    buffer_attributes = [EGL_WIDTH, width, EGL_HEIGHT, height, EGL_NONE]
+    buffer_attributes = arrays.GLintArray.asArray(buffer_attributes)
+    egl_surface = eglCreatePbufferSurface(egl_display, egl_config, buffer_attributes)
+
+
+    eglMakeCurrent(egl_display, egl_surface, egl_surface, egl_context)
+    logging.error("init_renderer_egl: egl_display: %s egl_surface: %s, egl_config: %s", egl_display, egl_surface, egl_context)
+
+    glViewport(0, 0, width, height);
+
+    self.egl_display = egl_display
+    self.egl_surface = egl_surface
+    self.egl_config =  egl_config
+    self.egl_mapping = {}
+    self.render_timer = None
+    self.load_timer = None
+    self.height = height
+    self.width = width
+
+  def create_shaders(self, v_shader_file, f_shader_file):
+    v_shader = glCreateShader(GL_VERTEX_SHADER)
+    with open(v_shader_file, 'r') as f:
+      ls = ''
+      for l in f:
+        ls = ls + l
+    glShaderSource(v_shader, ls)
+    glCompileShader(v_shader);
+    assert(glGetShaderiv(v_shader, GL_COMPILE_STATUS) == 1)
+
+    f_shader = glCreateShader(GL_FRAGMENT_SHADER)
+    with open(f_shader_file, 'r') as f:
+      ls = ''
+      for l in f:
+        ls = ls + l
+    glShaderSource(f_shader, ls)
+    glCompileShader(f_shader);
+    assert(glGetShaderiv(f_shader, GL_COMPILE_STATUS) == 1)
+
+    egl_program = glCreateProgram();
+    assert(egl_program)
+    glAttachShader(egl_program, v_shader)
+    glAttachShader(egl_program, f_shader)
+    glLinkProgram(egl_program);
+    assert(glGetProgramiv(egl_program, GL_LINK_STATUS) == 1)
+    glUseProgram(egl_program)
+
+    glBindAttribLocation(egl_program, 0, "aPosition")
+    glBindAttribLocation(egl_program, 1, "aColor")
+    glBindAttribLocation(egl_program, 2, "aTextureCoord")
+
+    self.egl_program = egl_program
+    self.egl_mapping['vertexs'] = 0
+    self.egl_mapping['vertexs_color'] = 1
+    self.egl_mapping['vertexs_tc'] = 2
+    
+    glClearColor(0.0, 0.0, 0.0, 1.0);
+    # glEnable(GL_CULL_FACE); glCullFace(GL_BACK);
+    glEnable(GL_DEPTH_TEST);
+    
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
+
+  def set_camera(self, fov_vertical, z_near, z_far, aspect):
+    width = 2*np.tan(np.deg2rad(fov_vertical)/2.0)*z_near*aspect;
+    height = 2*np.tan(np.deg2rad(fov_vertical)/2.0)*z_near;
+    egl_program = self.egl_program
+    c = np.eye(4, dtype=np.float32)
+    c[3,3] = 0
+    c[3,2] = -1
+    c[2,2] = -(z_near+z_far)/(z_far-z_near)
+    c[2,3] = -2.0*(z_near*z_far)/(z_far-z_near)
+    c[0,0] = 2.0*z_near/width
+    c[1,1] = 2.0*z_near/height
+    c = c.T
+    
+    projection_matrix_o = glGetUniformLocation(egl_program, 'uProjectionMatrix')
+    projection_matrix = np.eye(4, dtype=np.float32)
+    projection_matrix[...] = c
+    projection_matrix = np.reshape(projection_matrix, (-1))
+    glUniformMatrix4fv(projection_matrix_o, 1, GL_FALSE, projection_matrix)
+    
+
+  def load_default_object(self):
+    v = np.array([[0.0, 0.5, 0.0, 1.0, 1.0, 0.0, 1.0],
+                  [-0.5, -0.5, 0.0, 1.0, 0.0, 1.0, 1.0],
+                  [0.5, -0.5, 0.0, 1.0, 1.0, 1.0, 1.0]], dtype=np.float32)
+    v = np.concatenate((v,v+0.1), axis=0)
+    v = np.ascontiguousarray(v, dtype=np.float32)
+
+    vbo = glGenBuffers(1)
+    glBindBuffer (GL_ARRAY_BUFFER, vbo)
+    glBufferData (GL_ARRAY_BUFFER, v.dtype.itemsize*v.size, v, GL_STATIC_DRAW)
+    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 28, ctypes.c_void_p(0))
+    glVertexAttribPointer(1, 4, GL_FLOAT, GL_FALSE, 28, ctypes.c_void_p(12))
+    glEnableVertexAttribArray(0);
+    glEnableVertexAttribArray(1);
+
+    self.num_to_render = 6;
+
+  def _actual_render(self):
+    for entity_id, entity in self.entities.iteritems():
+      if entity['visible']:
+        vbo = entity['vbo']
+        tbo = entity['tbo']
+        num = entity['num']
+
+        glBindBuffer(GL_ARRAY_BUFFER, vbo)
+        glVertexAttribPointer(self.egl_mapping['vertexs'], 3, GL_FLOAT, GL_FALSE,
+                              20, ctypes.c_void_p(0))
+        glVertexAttribPointer(self.egl_mapping['vertexs_tc'], 2, GL_FLOAT,
+                              GL_FALSE, 20, ctypes.c_void_p(12))
+        glEnableVertexAttribArray(self.egl_mapping['vertexs']);
+        glEnableVertexAttribArray(self.egl_mapping['vertexs_tc']);
+
+        glBindTexture(GL_TEXTURE_2D, tbo)
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        glDrawArrays(GL_TRIANGLES, 0, num)
+
+  def render(self, take_screenshot=False, output_type=0):
+    # self.render_timer.tic()
+    self._actual_render()
+    # self.render_timer.toc(log_at=1000, log_str='render timer', type='time')
+
+    np_rgb_img = None
+    np_d_img = None
+    c = 1000.
+    if take_screenshot:
+      if self.modality == 'rgb':
+        screenshot_rgba = np.zeros((self.height, self.width, 4), dtype=np.uint8)
+        glReadPixels(0, 0, self.width, self.height, GL_RGBA, GL_UNSIGNED_BYTE, screenshot_rgba)
+        np_rgb_img = screenshot_rgba[::-1,:,:3];
+
+      if self.modality == 'depth': 
+        screenshot_d = np.zeros((self.height, self.width, 4), dtype=np.uint8)
+        glReadPixels(0, 0, self.width, self.height, GL_RGBA, GL_UNSIGNED_BYTE, screenshot_d)
+        np_d_img = screenshot_d[::-1,:,:3];
+        np_d_img = np_d_img[:,:,2]*(255.*255./c) + np_d_img[:,:,1]*(255./c) + np_d_img[:,:,0]*(1./c)
+        np_d_img = np_d_img.astype(np.float32)
+        np_d_img[np_d_img == 0] = np.NaN
+        np_d_img = np_d_img[:,:,np.newaxis]
+
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
+    return np_rgb_img, np_d_img
+
+  def _load_mesh_into_gl(self, mesh, material):
+    vvt = np.concatenate((mesh.vertices, mesh.texturecoords[0,:,:2]), axis=1)
+    vvt = np.ascontiguousarray(vvt[mesh.faces.reshape((-1)),:], dtype=np.float32)
+    num = vvt.shape[0]
+    vvt = np.reshape(vvt, (-1))
+
+    vbo = glGenBuffers(1)
+    glBindBuffer(GL_ARRAY_BUFFER, vbo)
+    glBufferData(GL_ARRAY_BUFFER, vvt.dtype.itemsize*vvt.size, vvt, GL_STATIC_DRAW)
+
+    tbo = glGenTextures(1)
+    glBindTexture(GL_TEXTURE_2D, tbo)
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, material.shape[1],
+                 material.shape[0], 0, GL_RGB, GL_UNSIGNED_BYTE,
+                 np.reshape(material, (-1)))
+    return num, vbo, tbo
+
+  def load_shapes(self, shapes):
+    entities = self.entities
+    entity_ids = []
+    for i, shape in enumerate(shapes):
+      for j in range(len(shape.meshes)):
+        name = shape.meshes[j].name
+        assert name not in entities, '{:s} entity already exists.'.format(name)
+        num, vbo, tbo = self._load_mesh_into_gl(shape.meshes[j], shape.materials[j])
+        entities[name] = {'num': num, 'vbo': vbo, 'tbo': tbo, 'visible': False}
+        entity_ids.append(name)
+    return entity_ids
+
+  def set_entity_visible(self, entity_ids, visibility):
+    for entity_id in entity_ids:
+      self.entities[entity_id]['visible'] = visibility
+
+  def position_camera(self, camera_xyz, lookat_xyz, up):
+    camera_xyz = np.array(camera_xyz)
+    lookat_xyz = np.array(lookat_xyz)
+    up = np.array(up)
+    lookat_to = lookat_xyz - camera_xyz
+    lookat_from = np.array([0, 1., 0.])
+    up_from = np.array([0, 0., 1.])
+    up_to = up * 1.
+    # np.set_printoptions(precision=2, suppress=True)
+    # print up_from, lookat_from, up_to, lookat_to
+    r = ru.rotate_camera_to_point_at(up_from, lookat_from, up_to, lookat_to)
+    R = np.eye(4, dtype=np.float32)
+    R[:3,:3] = r
+
+    t = np.eye(4, dtype=np.float32)
+    t[:3,3] = -camera_xyz
+
+    view_matrix = np.dot(R.T, t)
+    flip_yz = np.eye(4, dtype=np.float32)
+    flip_yz[1,1] = 0; flip_yz[2,2] = 0; flip_yz[1,2] = 1; flip_yz[2,1] = -1;
+    view_matrix = np.dot(flip_yz, view_matrix)
+    view_matrix = view_matrix.T
+    # print np.concatenate((R, t, view_matrix), axis=1)
+    view_matrix = np.reshape(view_matrix, (-1))
+    view_matrix_o = glGetUniformLocation(self.egl_program, 'uViewMatrix')
+    glUniformMatrix4fv(view_matrix_o, 1, GL_FALSE, view_matrix)
+    return None, None #camera_xyz, q
+
+  def clear_scene(self):
+    keys = self.entities.keys()
+    for entity_id in keys:
+      entity = self.entities.pop(entity_id, None)
+      vbo = entity['vbo']
+      tbo = entity['tbo']
+      num = entity['num']
+      glDeleteBuffers(1, [vbo])
+      glDeleteTextures(1, [tbo])
+
+  def __del__(self):
+    self.clear_scene()
+    eglMakeCurrent(self.egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT)
+    eglDestroySurface(self.egl_display, self.egl_surface)
+    eglTerminate(self.egl_display)

cognitive_mapping_and_planning/requirements.txt

+numpy
+pillow
+PyOpenGL
+PyOpenGL-accelerate
+six
+networkx
+scikit-image
+scipy
+opencv-python

cognitive_mapping_and_planning/scripts/script_distill.py

+# Copyright 2016 The TensorFlow Authors All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==============================================================================
+
+r""" Script to setup the grid moving agent.
+
+blaze build --define=ION_GFX_OGLES20=1 -c opt --copt=-mavx --config=cuda_clang \
+    learning/brain/public/tensorflow_std_server{,_gpu} \
+    experimental/users/saurabhgupta/navigation/cmp/scripts/script_distill.par \
+    experimental/users/saurabhgupta/navigation/cmp/scripts/script_distill
+
+
+./blaze-bin/experimental/users/saurabhgupta/navigation/cmp/scripts/script_distill \
+  --logdir=/cns/iq-d/home/saurabhgupta/output/stanford-distill/local/v0/ \
+  --config_name 'v0+train' --gfs_user robot-intelligence-gpu
+
+"""
+import sys, os, numpy as np
+import copy
+import argparse, pprint
+import time
+import cProfile
+
+
+import tensorflow as tf
+from tensorflow.contrib import slim
+from tensorflow.python.framework import ops
+from tensorflow.contrib.framework.python.ops import variables 
+
+import logging
+from tensorflow.python.platform import gfile
+from tensorflow.python.platform import app
+from tensorflow.python.platform import flags
+from cfgs import config_distill
+from tfcode import tf_utils
+import src.utils as utils
+import src.file_utils as fu
+import tfcode.distillation as distill 
+import datasets.nav_env as nav_env
+
+FLAGS = flags.FLAGS
+
+flags.DEFINE_string('master', 'local',
+                    'The name of the TensorFlow master to use.')
+flags.DEFINE_integer('ps_tasks', 0, 'The number of parameter servers. If the '
+                     'value is 0, then the parameters are handled locally by '
+                     'the worker.')
+flags.DEFINE_integer('task', 0, 'The Task ID. This value is used when training '
+                     'with multiple workers to identify each worker.')
+
+flags.DEFINE_integer('num_workers', 1, '')
+
+flags.DEFINE_string('config_name', '', '')
+
+flags.DEFINE_string('logdir', '', '')
+
+def main(_):
+  args = config_distill.get_args_for_config(FLAGS.config_name)
+  args.logdir = FLAGS.logdir
+  args.solver.num_workers = FLAGS.num_workers
+  args.solver.task = FLAGS.task
+  args.solver.ps_tasks = FLAGS.ps_tasks
+  args.solver.master = FLAGS.master
+  
+  args.buildinger.env_class = nav_env.MeshMapper
+  fu.makedirs(args.logdir)
+  args.buildinger.logdir = args.logdir
+  R = nav_env.get_multiplexor_class(args.buildinger, args.solver.task)
+  
+  if False:
+    pr = cProfile.Profile()
+    pr.enable()
+    rng = np.random.RandomState(0)
+    for i in range(1):
+      b, instances_perturbs = R.sample_building(rng)
+      inputs = b.worker(*(instances_perturbs))
+      for j in range(inputs['imgs'].shape[0]):
+        p = os.path.join('tmp', '{:d}.png'.format(j))
+        img = inputs['imgs'][j,0,:,:,:3]*1
+        img = (img).astype(np.uint8)
+        fu.write_image(p, img)
+      print(inputs['imgs'].shape)
+      inputs = R.pre(inputs)
+    pr.disable()
+    pr.print_stats(2)
+
+  if args.control.train:
+    if not gfile.Exists(args.logdir):
+      gfile.MakeDirs(args.logdir)
+   
+    m = utils.Foo()
+    m.tf_graph = tf.Graph()
+    
+    config = tf.ConfigProto()
+    config.device_count['GPU'] = 1
+    config.gpu_options.allow_growth = True
+    config.gpu_options.per_process_gpu_memory_fraction = 0.8
+    
+    with m.tf_graph.as_default():
+      with tf.device(tf.train.replica_device_setter(args.solver.ps_tasks)):
+        m = distill.setup_to_run(m, args, is_training=True,
+                                batch_norm_is_training=True)
+
+        train_step_kwargs = distill.setup_train_step_kwargs_mesh(
+            m, R, os.path.join(args.logdir, 'train'),
+            rng_seed=args.solver.task, is_chief=args.solver.task==0, iters=1,
+            train_display_interval=args.summary.display_interval)
+
+        final_loss = slim.learning.train(
+            train_op=m.train_op,
+            logdir=args.logdir,
+            master=args.solver.master,
+            is_chief=args.solver.task == 0,
+            number_of_steps=args.solver.max_steps,
+            train_step_fn=tf_utils.train_step_custom,
+            train_step_kwargs=train_step_kwargs,
+            global_step=m.global_step_op,
+            init_op=m.init_op,
+            init_fn=m.init_fn,
+            sync_optimizer=m.sync_optimizer,
+            saver=m.saver_op,
+            summary_op=None, session_config=config)
+ 
+  if args.control.test:
+    m = utils.Foo()
+    m.tf_graph = tf.Graph()
+    checkpoint_dir = os.path.join(format(args.logdir))
+    with m.tf_graph.as_default():
+      m = distill.setup_to_run(m, args, is_training=False,
+                              batch_norm_is_training=args.control.force_batchnorm_is_training_at_test)
+      
+      train_step_kwargs = distill.setup_train_step_kwargs_mesh(
+          m, R, os.path.join(args.logdir, args.control.test_name),
+          rng_seed=args.solver.task+1, is_chief=args.solver.task==0,
+          iters=args.summary.test_iters, train_display_interval=None)
+      
+      sv = slim.learning.supervisor.Supervisor(
+          graph=ops.get_default_graph(), logdir=None, init_op=m.init_op,
+          summary_op=None, summary_writer=None, global_step=None, saver=m.saver_op)
+
+      last_checkpoint = None
+      while True:
+        last_checkpoint = slim.evaluation.wait_for_new_checkpoint(checkpoint_dir, last_checkpoint)
+        checkpoint_iter = int(os.path.basename(last_checkpoint).split('-')[1])
+        start = time.time()
+        logging.info('Starting evaluation at %s using checkpoint %s.', 
+                     time.strftime('%Y-%m-%d-%H:%M:%S', time.localtime()),
+                     last_checkpoint)
+        
+        config = tf.ConfigProto()
+        config.device_count['GPU'] = 1
+        config.gpu_options.allow_growth = True
+        config.gpu_options.per_process_gpu_memory_fraction = 0.8
+        
+        with sv.managed_session(args.solver.master,config=config,
+                                start_standard_services=False) as sess:
+          sess.run(m.init_op)
+          sv.saver.restore(sess, last_checkpoint)
+          sv.start_queue_runners(sess)
+          vals, _ = tf_utils.train_step_custom(
+              sess, None, m.global_step_op, train_step_kwargs, mode='val')
+          if checkpoint_iter >= args.solver.max_steps:
+            break
+
+if __name__ == '__main__':
+  app.run()

cognitive_mapping_and_planning/scripts/script_download_init_models.sh

+# Script to download models to initialize the RGB and D models for training.We
+# use ResNet-v2-50 for both modalities.
+
+mkdir -p data/init_models
+cd data/init_models
+
+# RGB Models are initialized by pre-training on ImageNet.
+mkdir -p resnet_v2_50
+RGB_URL="http://download.tensorflow.org/models/resnet_v2_50_2017_04_14.tar.gz"
+wget $RGB_URL
+tar -xf resnet_v2_50_2017_04_14.tar.gz -C resnet_v2_50
+
+# Depth models are initialized by distilling the RGB model to D images using
+# Cross-Modal Distillation (https://arxiv.org/abs/1507.00448).
+mkdir -p distill_rgb_to_d_resnet_v2_50
+D_URL="http://download.tensorflow.org/models/cognitive_mapping_and_planning/2017_04_16/distill_rgb_to_d_resnet_v2_50.tar"
+wget $D_URL
+tar -xf distill_rgb_to_d_resnet_v2_50.tar -C distill_rgb_to_d_resnet_v2_50

cognitive_mapping_and_planning/scripts/script_env_vis.py

+# Copyright 2016 The TensorFlow Authors All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==============================================================================
+
+"""A simple python function to walk in the enviornments that we have created.
+PYTHONPATH='.' PYOPENGL_PLATFORM=egl python scripts/script_env_vis.py \
+  --dataset_name sbpd --building_name area3
+"""
+import sys
+import numpy as np
+import matplotlib
+matplotlib.use('TkAgg')
+from PIL import ImageTk, Image
+import Tkinter as tk
+import logging
+from tensorflow.python.platform import app
+from tensorflow.python.platform import flags
+
+import datasets.nav_env_config as nec
+import datasets.nav_env as nav_env
+import cv2
+from datasets import factory 
+import render.swiftshader_renderer as renderer 
+
+SwiftshaderRenderer = renderer.SwiftshaderRenderer
+VisualNavigationEnv = nav_env.VisualNavigationEnv
+
+FLAGS = flags.FLAGS
+flags.DEFINE_string('dataset_name', 'sbpd', 'Name of the dataset.')
+flags.DEFINE_float('fov', 60., 'Field of view')
+flags.DEFINE_integer('image_size', 512, 'Size of the image.')
+flags.DEFINE_string('building_name', '', 'Name of the building.')
+
+def get_args():
+  navtask = nec.nav_env_base_config()
+  navtask.task_params.type = 'rng_rejection_sampling_many'
+  navtask.task_params.rejection_sampling_M = 2000
+  navtask.task_params.min_dist = 10
+  sz = FLAGS.image_size
+  navtask.camera_param.fov = FLAGS.fov
+  navtask.camera_param.height = sz
+  navtask.camera_param.width = sz
+  navtask.task_params.img_height = sz
+  navtask.task_params.img_width = sz
+  
+  # navtask.task_params.semantic_task.class_map_names = ['chair', 'door', 'table']
+  # navtask.task_params.type = 'to_nearest_obj_acc'
+  
+  logging.info('navtask: %s', navtask)
+  return navtask
+
+def load_building(dataset_name, building_name):
+  dataset = factory.get_dataset(dataset_name)
+
+  navtask = get_args()
+  cp = navtask.camera_param
+  rgb_shader, d_shader = renderer.get_shaders(cp.modalities)
+  r_obj = SwiftshaderRenderer()
+  r_obj.init_display(width=cp.width, height=cp.height,
+                     fov=cp.fov, z_near=cp.z_near, z_far=cp.z_far,
+                     rgb_shader=rgb_shader, d_shader=d_shader)
+  r_obj.clear_scene()
+  b = VisualNavigationEnv(robot=navtask.robot, env=navtask.env,
+                          task_params=navtask.task_params,
+                          building_name=building_name, flip=False,
+                          logdir=None, building_loader=dataset,
+                          r_obj=r_obj)
+  b.load_building_into_scene()
+  b.set_building_visibility(False)
+  return b
+
+def walk_through(b):
+  # init agent at a random location in the environment.
+  init_env_state = b.reset([np.random.RandomState(0), np.random.RandomState(0)])
+
+  global current_node
+  rng = np.random.RandomState(0)
+  current_node = rng.choice(b.task.nodes.shape[0])
+
+  root = tk.Tk()
+  image = b.render_nodes(b.task.nodes[[current_node],:])[0]
+  print image.shape
+  image = image.astype(np.uint8)
+  im = Image.fromarray(image)
+  im = ImageTk.PhotoImage(im)
+  panel = tk.Label(root, image=im)
+ 
+  map_size = b.traversible.shape
+  sc = np.max(map_size)/256.
+  loc = np.array([[map_size[1]/2., map_size[0]/2.]])
+  x_axis = np.zeros_like(loc); x_axis[:,1] = sc
+  y_axis = np.zeros_like(loc); y_axis[:,0] = -sc
+  cum_fs, cum_valid = nav_env.get_map_to_predict(loc, x_axis, y_axis,
+                                                   map=b.traversible*1.,
+                                                   map_size=256)
+  cum_fs = cum_fs[0]
+  cum_fs = cv2.applyColorMap((cum_fs*255).astype(np.uint8), cv2.COLORMAP_JET)
+  im = Image.fromarray(cum_fs)
+  im = ImageTk.PhotoImage(im)
+  panel_overhead = tk.Label(root, image=im)
+
+  def refresh():
+    global current_node
+    image = b.render_nodes(b.task.nodes[[current_node],:])[0]
+    image = image.astype(np.uint8)
+    im = Image.fromarray(image)
+    im = ImageTk.PhotoImage(im)
+    panel.configure(image=im)
+    panel.image = im
+
+  def left_key(event):
+    global current_node
+    current_node = b.take_action([current_node], [2], 1)[0][0]
+    refresh()
+
+  def up_key(event):
+    global current_node
+    current_node = b.take_action([current_node], [3], 1)[0][0]
+    refresh()
+  
+  def right_key(event):
+    global current_node
+    current_node = b.take_action([current_node], [1], 1)[0][0]
+    refresh()
+
+  def quit(event):
+    root.destroy() 
+  
+  panel_overhead.grid(row=4, column=5, rowspan=1, columnspan=1,
+                      sticky=tk.W+tk.E+tk.N+tk.S)
+  panel.bind('<Left>', left_key)
+  panel.bind('<Up>', up_key)
+  panel.bind('<Right>', right_key)
+  panel.bind('q', quit)
+  panel.focus_set()
+  panel.grid(row=0, column=0, rowspan=5, columnspan=5,
+             sticky=tk.W+tk.E+tk.N+tk.S)
+  root.mainloop()
+
+def simple_window():
+  root = tk.Tk()
+  
+  image = np.zeros((128, 128, 3), dtype=np.uint8)
+  image[32:96, 32:96, 0] = 255
+  im = Image.fromarray(image)
+  im = ImageTk.PhotoImage(im)
+  
+  image = np.zeros((128, 128, 3), dtype=np.uint8)
+  image[32:96, 32:96, 1] = 255
+  im2 = Image.fromarray(image)
+  im2 = ImageTk.PhotoImage(im2)
+  
+  panel = tk.Label(root, image=im)
+  
+  def left_key(event):
+    panel.configure(image=im2)
+    panel.image = im2
+
+  def quit(event):
+    sys.exit()
+
+  panel.bind('<Left>', left_key)
+  panel.bind('<Up>', left_key)
+  panel.bind('<Down>', left_key)
+  panel.bind('q', quit)
+  panel.focus_set()
+  panel.pack(side = "bottom", fill = "both", expand = "yes")
+  root.mainloop() 
+
+def main(_):
+  b = load_building(FLAGS.dataset_name, FLAGS.building_name)
+  walk_through(b)
+
+if __name__ == '__main__':
+  app.run()

cognitive_mapping_and_planning/scripts/script_nav_agent_release.py

+# Copyright 2016 The TensorFlow Authors All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==============================================================================
+
+r""" Script to train and test the grid navigation agent.
+Usage:
+  1. Testing a model.
+  CUDA_VISIBLE_DEVICES=0 LD_LIBRARY_PATH=/opt/cuda-8.0/lib64:/opt/cudnnv51/lib64 \
+    PYTHONPATH='.' PYOPENGL_PLATFORM=egl python scripts/script_nav_agent_release.py \
+    --config_name cmp.lmap_Msc.clip5.sbpd_d_r2r+bench_test \
+    --logdir output/cmp.lmap_Msc.clip5.sbpd_d_r2r
+
+  2. Training a model (locally).
+  CUDA_VISIBLE_DEVICES=0 LD_LIBRARY_PATH=/opt/cuda-8.0/lib64:/opt/cudnnv51/lib64 \
+    PYTHONPATH='.' PYOPENGL_PLATFORM=egl python scripts/script_nav_agent_release.py \
+    --config_name cmp.lmap_Msc.clip5.sbpd_d_r2r+train_train \
+    --logdir output/cmp.lmap_Msc.clip5.sbpd_d_r2r_
+
+  3. Training a model (distributed).
+  # See https://www.tensorflow.org/deploy/distributed on how to setup distributed
+  # training.
+  CUDA_VISIBLE_DEVICES=0 LD_LIBRARY_PATH=/opt/cuda-8.0/lib64:/opt/cudnnv51/lib64 \
+    PYTHONPATH='.' PYOPENGL_PLATFORM=egl python scripts/script_nav_agent_release.py \
+    --config_name cmp.lmap_Msc.clip5.sbpd_d_r2r+train_train \
+    --logdir output/cmp.lmap_Msc.clip5.sbpd_d_r2r_ \
+    --ps_tasks $num_ps --master $master_name --task $worker_id
+"""
+
+import sys, os, numpy as np
+import copy
+import argparse, pprint
+import time
+import cProfile
+import platform
+
+
+import tensorflow as tf
+from tensorflow.contrib import slim
+from tensorflow.python.framework import ops
+from tensorflow.contrib.framework.python.ops import variables
+
+import logging
+from tensorflow.python.platform import gfile
+from tensorflow.python.platform import app
+from tensorflow.python.platform import flags
+from cfgs import config_cmp
+from cfgs import config_vision_baseline
+import datasets.nav_env as nav_env
+import src.file_utils as fu 
+import src.utils as utils
+import tfcode.cmp as cmp 
+from tfcode import tf_utils
+from tfcode import vision_baseline_lstm
+
+FLAGS = flags.FLAGS
+
+flags.DEFINE_string('master', '',
+                    'The address of the tensorflow master')
+flags.DEFINE_integer('ps_tasks', 0, 'The number of parameter servers. If the '
+                     'value is 0, then the parameters are handled locally by '
+                     'the worker.')
+flags.DEFINE_integer('task', 0, 'The Task ID. This value is used when training '
+                     'with multiple workers to identify each worker.')
+
+flags.DEFINE_integer('num_workers', 1, '')
+
+flags.DEFINE_string('config_name', '', '')
+
+flags.DEFINE_string('logdir', '', '')
+
+flags.DEFINE_integer('solver_seed', 0, '')
+
+flags.DEFINE_integer('delay_start_iters', 20, '')
+
+logging.basicConfig(level=logging.INFO)
+
+def main(_):
+  _launcher(FLAGS.config_name, FLAGS.logdir)
+
+def _launcher(config_name, logdir):
+  args = _setup_args(config_name, logdir)
+
+  fu.makedirs(args.logdir)
+
+  if args.control.train:
+    _train(args)
+
+  if args.control.test:
+    _test(args)
+
+def get_args_for_config(config_name):
+  configs = config_name.split('.')
+  type = configs[0]
+  config_name = '.'.join(configs[1:])
+  if type == 'cmp':
+    args = config_cmp.get_args_for_config(config_name)
+    args.setup_to_run = cmp.setup_to_run
+    args.setup_train_step_kwargs = cmp.setup_train_step_kwargs
+
+  elif type == 'bl':
+    args = config_vision_baseline.get_args_for_config(config_name)
+    args.setup_to_run = vision_baseline_lstm.setup_to_run
+    args.setup_train_step_kwargs = vision_baseline_lstm.setup_train_step_kwargs
+
+  else:
+    logging.fatal('Unknown type: {:s}'.format(type))
+  return args
+
+def _setup_args(config_name, logdir):
+  args = get_args_for_config(config_name)
+  args.solver.num_workers = FLAGS.num_workers
+  args.solver.task = FLAGS.task
+  args.solver.ps_tasks = FLAGS.ps_tasks
+  args.solver.master = FLAGS.master
+  args.solver.seed = FLAGS.solver_seed
+  args.logdir = logdir
+  args.navtask.logdir = None
+  return args
+
+def _train(args):
+  container_name = ""
+
+  R = lambda: nav_env.get_multiplexer_class(args.navtask, args.solver.task)
+  m = utils.Foo()
+  m.tf_graph = tf.Graph()
+
+  config = tf.ConfigProto()
+  config.device_count['GPU'] = 1
+
+  with m.tf_graph.as_default():
+    with tf.device(tf.train.replica_device_setter(args.solver.ps_tasks,
+                                          merge_devices=True)):
+      with tf.container(container_name):
+        m = args.setup_to_run(m, args, is_training=True,
+                             batch_norm_is_training=True, summary_mode='train')
+
+        train_step_kwargs = args.setup_train_step_kwargs(
+            m, R(), os.path.join(args.logdir, 'train'), rng_seed=args.solver.task,
+            is_chief=args.solver.task==0,
+            num_steps=args.navtask.task_params.num_steps*args.navtask.task_params.num_goals, iters=1,
+            train_display_interval=args.summary.display_interval,
+            dagger_sample_bn_false=args.arch.dagger_sample_bn_false)
+
+        delay_start = (args.solver.task*(args.solver.task+1))/2 * FLAGS.delay_start_iters
+        logging.error('delaying start for task %d by %d steps.',
+                      args.solver.task, delay_start)
+
+        additional_args = {}
+        final_loss = slim.learning.train(
+            train_op=m.train_op,
+            logdir=args.logdir,
+            master=args.solver.master,
+            is_chief=args.solver.task == 0,
+            number_of_steps=args.solver.max_steps,
+            train_step_fn=tf_utils.train_step_custom_online_sampling,
+            train_step_kwargs=train_step_kwargs,
+            global_step=m.global_step_op,
+            init_op=m.init_op,
+            init_fn=m.init_fn,
+            sync_optimizer=m.sync_optimizer,
+            saver=m.saver_op,
+            startup_delay_steps=delay_start,
+            summary_op=None, session_config=config, **additional_args)
+
+def _test(args):
+  args.solver.master = ''
+  container_name = ""
+  checkpoint_dir = os.path.join(format(args.logdir))
+  logging.error('Checkpoint_dir: %s', args.logdir)
+
+  config = tf.ConfigProto();
+  config.device_count['GPU'] = 1;
+
+  m = utils.Foo()
+  m.tf_graph = tf.Graph()
+
+  rng_data_seed = 0; rng_action_seed = 0;
+  R = lambda: nav_env.get_multiplexer_class(args.navtask, rng_data_seed)
+  with m.tf_graph.as_default():
+    with tf.container(container_name):
+      m = args.setup_to_run(
+        m, args, is_training=False,
+        batch_norm_is_training=args.control.force_batchnorm_is_training_at_test,
+        summary_mode=args.control.test_mode)
+      train_step_kwargs = args.setup_train_step_kwargs(
+        m, R(), os.path.join(args.logdir, args.control.test_name),
+        rng_seed=rng_data_seed, is_chief=True,
+        num_steps=args.navtask.task_params.num_steps*args.navtask.task_params.num_goals,
+        iters=args.summary.test_iters, train_display_interval=None,
+        dagger_sample_bn_false=args.arch.dagger_sample_bn_false)
+
+      saver = slim.learning.tf_saver.Saver(variables.get_variables_to_restore())
+
+      sv = slim.learning.supervisor.Supervisor(
+          graph=ops.get_default_graph(), logdir=None, init_op=m.init_op,
+          summary_op=None, summary_writer=None, global_step=None, saver=m.saver_op)
+
+      last_checkpoint = None
+      reported = False
+      while True:
+        last_checkpoint_ = None
+        while last_checkpoint_ is None:
+          last_checkpoint_ = slim.evaluation.wait_for_new_checkpoint(
+            checkpoint_dir, last_checkpoint, seconds_to_sleep=10, timeout=60)
+        if last_checkpoint_ is None: break
+
+        last_checkpoint = last_checkpoint_
+        checkpoint_iter = int(os.path.basename(last_checkpoint).split('-')[1])
+
+        logging.info('Starting evaluation at %s using checkpoint %s.',
+                     time.strftime('%Y-%m-%d-%H:%M:%S', time.localtime()),
+                     last_checkpoint)
+
+        if (args.control.only_eval_when_done == False or 
+            checkpoint_iter >= args.solver.max_steps):
+          start = time.time()
+          logging.info('Starting evaluation at %s using checkpoint %s.', 
+                       time.strftime('%Y-%m-%d-%H:%M:%S', time.localtime()),
+                       last_checkpoint)
+
+          with sv.managed_session(args.solver.master, config=config,
+                                  start_standard_services=False) as sess:
+            sess.run(m.init_op)
+            sv.saver.restore(sess, last_checkpoint)
+            sv.start_queue_runners(sess)
+            if args.control.reset_rng_seed:
+              train_step_kwargs['rng_data'] = [np.random.RandomState(rng_data_seed),
+                                               np.random.RandomState(rng_data_seed)]
+              train_step_kwargs['rng_action'] = np.random.RandomState(rng_action_seed)
+            vals, _ = tf_utils.train_step_custom_online_sampling(
+                sess, None, m.global_step_op, train_step_kwargs,
+                mode=args.control.test_mode)
+            should_stop = False
+
+            if checkpoint_iter >= args.solver.max_steps: 
+              should_stop = True
+
+            if should_stop:
+              break
+
+if __name__ == '__main__':
+  app.run()

cognitive_mapping_and_planning/scripts/script_plot_trajectory.py

+# Copyright 2016 The TensorFlow Authors All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==============================================================================
+
+r"""
+Code for plotting trajectories in the top view, and also plot first person views
+from saved trajectories. Does not run the network but only loads the mesh data
+to plot the view points.
+  CUDA_VISIBLE_DEVICES=0 LD_LIBRARY_PATH=/opt/cuda-8.0/lib64:/opt/cudnnv51/lib64 
+  PYTHONPATH='.' PYOPENGL_PLATFORM=egl python scripts/script_plot_trajectory.py \
+      --first_person --num_steps 40 \
+      --config_name cmp.lmap_Msc.clip5.sbpd_d_r2r \
+      --imset test --alsologtostderr --base_dir output --out_dir vis
+
+"""
+import os, sys, numpy as np, copy
+import matplotlib
+matplotlib.use("Agg")
+import matplotlib.pyplot as plt
+import matplotlib.animation as animation
+from matplotlib.gridspec import GridSpec
+
+import tensorflow as tf
+from tensorflow.contrib import slim
+import cv2
+import logging
+from tensorflow.python.platform import gfile
+from tensorflow.python.platform import app 
+from tensorflow.python.platform import flags 
+
+from datasets import nav_env
+import scripts.script_nav_agent_release as sna 
+import src.file_utils as fu
+from src import graph_utils 
+from src import utils
+FLAGS = flags.FLAGS
+
+flags.DEFINE_string('out_dir', 'vis', 'Directory where to store the output')
+flags.DEFINE_string('type', '', 'Optional type.')
+flags.DEFINE_bool('first_person', False, 'Visualize the first person view.')
+flags.DEFINE_bool('top_view', False, 'Visualize the trajectory in the top view.')
+flags.DEFINE_integer('num_steps', 40, 'Number of steps to run the model for.')
+flags.DEFINE_string('imset', 'test', '')
+flags.DEFINE_string('base_dir', 'output', 'Cache directory.')
+
+def _get_suffix_str():
+  return ''
+
+
+def _load_trajectory():
+  base_dir = FLAGS.base_dir
+  config_name = FLAGS.config_name+_get_suffix_str()
+
+  dir_name = os.path.join(base_dir, FLAGS.type, config_name)
+  logging.info('Waiting for snapshot in directory %s.', dir_name)
+  last_checkpoint = slim.evaluation.wait_for_new_checkpoint(dir_name, None)
+  checkpoint_iter = int(os.path.basename(last_checkpoint).split('-')[1])
+
+  # Load the distances.
+  a = utils.load_variables(os.path.join(dir_name, 'bench_on_'+FLAGS.imset,
+                                        'all_locs_at_t_{:d}.pkl'.format(checkpoint_iter)))
+  return a
+
+def _compute_hardness():
+  # Load the stanford data to compute the hardness.
+  if FLAGS.type == '':
+    args = sna.get_args_for_config(FLAGS.config_name+'+bench_'+FLAGS.imset)
+  else:
+    args = sna.get_args_for_config(FLAGS.type+'.'+FLAGS.config_name+'+bench_'+FLAGS.imset)
+
+  args.navtask.logdir = None
+  R = lambda: nav_env.get_multiplexer_class(args.navtask, 0)
+  R = R()
+
+  rng_data = [np.random.RandomState(0), np.random.RandomState(0)]
+
+  # Sample a room.
+  h_dists = []
+  gt_dists = []
+  for i in range(250):
+    e = R.sample_env(rng_data)
+    nodes = e.task.nodes
+
+    # Initialize the agent.
+    init_env_state = e.reset(rng_data)
+
+    gt_dist_to_goal = [e.episode.dist_to_goal[0][j][s] 
+                       for j, s in enumerate(e.episode.start_node_ids)]
+
+    for j in range(args.navtask.task_params.batch_size):
+      start_node_id = e.episode.start_node_ids[j]
+      end_node_id =e.episode.goal_node_ids[0][j]
+      h_dist = graph_utils.heuristic_fn_vec(
+          nodes[[start_node_id],:], nodes[[end_node_id], :],
+          n_ori=args.navtask.task_params.n_ori,
+          step_size=args.navtask.task_params.step_size)[0][0]
+      gt_dist = e.episode.dist_to_goal[0][j][start_node_id]
+      h_dists.append(h_dist)
+      gt_dists.append(gt_dist)
+
+  h_dists = np.array(h_dists)
+  gt_dists = np.array(gt_dists)
+  e = R.sample_env([np.random.RandomState(0), np.random.RandomState(0)])
+  input = e.get_common_data()
+  orig_maps = input['orig_maps'][0,0,:,:,0]
+  return h_dists, gt_dists, orig_maps
+
+def plot_trajectory_first_person(dt, orig_maps, out_dir):
+  out_dir = os.path.join(out_dir, FLAGS.config_name+_get_suffix_str(),
+                         FLAGS.imset)
+  fu.makedirs(out_dir)
+  
+  # Load the model so that we can render.
+  plt.set_cmap('gray')
+  samples_per_action = 8; wait_at_action = 0;
+  
+  Writer = animation.writers['mencoder']
+  writer = Writer(fps=3*(samples_per_action+wait_at_action), 
+                  metadata=dict(artist='anonymous'), bitrate=1800)
+  
+  args = sna.get_args_for_config(FLAGS.config_name + '+bench_'+FLAGS.imset)
+  args.navtask.logdir = None
+  navtask_ = copy.deepcopy(args.navtask)
+  navtask_.camera_param.modalities = ['rgb']
+  navtask_.task_params.modalities = ['rgb']
+  sz = 512
+  navtask_.camera_param.height = sz
+  navtask_.camera_param.width = sz
+  navtask_.task_params.img_height = sz
+  navtask_.task_params.img_width = sz
+  R = lambda: nav_env.get_multiplexer_class(navtask_, 0)
+  R = R()
+  b = R.buildings[0]
+  
+  f = [0 for _ in range(wait_at_action)] + \
+      [float(_)/samples_per_action for _ in range(samples_per_action)];
+  
+  # Generate things for it to render.
+  inds_to_do = []
+  inds_to_do += [1, 4, 10] #1291, 1268, 1273, 1289, 1302, 1426, 1413, 1449, 1399, 1390]
+
+  for i in inds_to_do:
+    fig = plt.figure(figsize=(10,8))
+    gs = GridSpec(3,4)
+    gs.update(wspace=0.05, hspace=0.05, left=0.0, top=0.97, right=1.0, bottom=0.)
+    ax = fig.add_subplot(gs[:,:-1])
+    ax1 = fig.add_subplot(gs[0,-1])
+    ax2 = fig.add_subplot(gs[1,-1])
+    ax3 = fig.add_subplot(gs[2,-1])
+    axes = [ax, ax1, ax2, ax3]
+    # ax = fig.add_subplot(gs[:,:])
+    # axes = [ax]
+    for ax in axes:
+      ax.set_axis_off()
+    
+    node_ids = dt['all_node_ids'][i, :, 0]*1
+    # Prune so that last node is not repeated more than 3 times?
+    if np.all(node_ids[-4:] == node_ids[-1]):
+      while node_ids[-4] == node_ids[-1]:
+        node_ids = node_ids[:-1]
+    num_steps = np.minimum(FLAGS.num_steps, len(node_ids))
+
+    xyt = b.to_actual_xyt_vec(b.task.nodes[node_ids])
+    xyt_diff = xyt[1:,:] - xyt[:-1:,:]
+    xyt_diff[:,2] = np.mod(xyt_diff[:,2], 4)
+    ind = np.where(xyt_diff[:,2] == 3)[0]
+    xyt_diff[ind, 2] = -1
+    xyt_diff = np.expand_dims(xyt_diff, axis=1)
+    to_cat = [xyt_diff*_ for _ in f]
+    perturbs_all = np.concatenate(to_cat, axis=1)
+    perturbs_all = np.concatenate([perturbs_all, np.zeros_like(perturbs_all[:,:,:1])], axis=2)
+    node_ids_all = np.expand_dims(node_ids, axis=1)*1
+    node_ids_all = np.concatenate([node_ids_all for _ in f], axis=1)
+    node_ids_all = np.reshape(node_ids_all[:-1,:], -1)
+    perturbs_all = np.reshape(perturbs_all, [-1, 4])
+    imgs = b.render_nodes(b.task.nodes[node_ids_all,:], perturb=perturbs_all)
+  
+    # Get action at each node.
+    actions = []
+    _, action_to_nodes = b.get_feasible_actions(node_ids)
+    for j in range(num_steps-1):
+      action_to_node = action_to_nodes[j]
+      node_to_action = dict(zip(action_to_node.values(), action_to_node.keys()))
+      actions.append(node_to_action[node_ids[j+1]])
+    
+    def init_fn():
+      return fig,
+    gt_dist_to_goal = []
+
+    # Render trajectories.
+    def worker(j):
+      # Plot the image.
+      step_number = j/(samples_per_action + wait_at_action)
+      img = imgs[j]; ax = axes[0]; ax.clear(); ax.set_axis_off();
+      img = img.astype(np.uint8); ax.imshow(img);
+      tt = ax.set_title(
+          "First Person View\n" + 
+          "Top corners show diagnostics (distance, agents' action) not input to agent.", 
+          fontsize=12)
+      plt.setp(tt, color='white')
+
+      # Distance to goal.
+      t = 'Dist to Goal:\n{:2d} steps'.format(int(dt['all_d_at_t'][i, step_number]))
+      t = ax.text(0.01, 0.99, t,
+          horizontalalignment='left',
+          verticalalignment='top',
+          fontsize=20, color='red',
+          transform=ax.transAxes, alpha=1.0)
+      t.set_bbox(dict(color='white', alpha=0.85, pad=-0.1))
+      
+      # Action to take.
+      action_latex = ['$\odot$ ', '$\curvearrowright$ ', '$\curvearrowleft$ ', '$\Uparrow$ ']
+      t = ax.text(0.99, 0.99, action_latex[actions[step_number]],
+          horizontalalignment='right',
+          verticalalignment='top',
+          fontsize=40, color='green',
+          transform=ax.transAxes, alpha=1.0)
+      t.set_bbox(dict(color='white', alpha=0.85, pad=-0.1))
+
+
+      # Plot the map top view.
+      ax = axes[-1]
+      if j == 0:
+        # Plot the map
+        locs = dt['all_locs'][i,:num_steps,:]
+        goal_loc = dt['all_goal_locs'][i,:,:]
+        xymin = np.minimum(np.min(goal_loc, axis=0), np.min(locs, axis=0))
+        xymax = np.maximum(np.max(goal_loc, axis=0), np.max(locs, axis=0))
+        xy1 = (xymax+xymin)/2. - 0.7*np.maximum(np.max(xymax-xymin), 24)
+        xy2 = (xymax+xymin)/2. + 0.7*np.maximum(np.max(xymax-xymin), 24)
+
+        ax.set_axis_on()
+        ax.patch.set_facecolor((0.333, 0.333, 0.333))
+        ax.set_xticks([]); ax.set_yticks([]);
+        ax.imshow(orig_maps, origin='lower', vmin=-1.0, vmax=2.0)
+        ax.plot(goal_loc[:,0], goal_loc[:,1], 'g*', markersize=12)
+
+        locs = dt['all_locs'][i,:1,:]
+        ax.plot(locs[:,0], locs[:,1], 'b.', markersize=12)
+
+        ax.set_xlim([xy1[0], xy2[0]])
+        ax.set_ylim([xy1[1], xy2[1]])
+
+      locs = dt['all_locs'][i,step_number,:]
+      locs = np.expand_dims(locs, axis=0)
+      ax.plot(locs[:,0], locs[:,1], 'r.', alpha=1.0, linewidth=0, markersize=4)
+      tt = ax.set_title('Trajectory in topview', fontsize=14)
+      plt.setp(tt, color='white') 
+      return fig,
+
+    line_ani = animation.FuncAnimation(fig, worker,
+                                       (num_steps-1)*(wait_at_action+samples_per_action),
+                                       interval=500, blit=True, init_func=init_fn)
+    tmp_file_name = 'tmp.mp4'
+    line_ani.save(tmp_file_name, writer=writer, savefig_kwargs={'facecolor':'black'})
+    out_file_name = os.path.join(out_dir, 'vis_{:04d}.mp4'.format(i))
+    print out_file_name
+
+    if fu.exists(out_file_name):
+      gfile.Remove(out_file_name)
+    gfile.Copy(tmp_file_name, out_file_name)
+    gfile.Remove(tmp_file_name)
+    plt.close(fig)
+
+def plot_trajectory(dt, hardness, orig_maps, out_dir):
+  out_dir = os.path.join(out_dir, FLAGS.config_name+_get_suffix_str(),
+                         FLAGS.imset)
+  fu.makedirs(out_dir)
+  out_file = os.path.join(out_dir, 'all_locs_at_t.pkl')
+  dt['hardness'] = hardness
+  utils.save_variables(out_file, dt.values(), dt.keys(), overwrite=True)
+  
+  #Plot trajectories onto the maps
+  plt.set_cmap('gray')
+  for i in range(4000):
+    goal_loc = dt['all_goal_locs'][i, :, :]
+    locs = np.concatenate((dt['all_locs'][i,:,:], 
+                           dt['all_locs'][i,:,:]), axis=0)
+    xymin = np.minimum(np.min(goal_loc, axis=0), np.min(locs, axis=0))
+    xymax = np.maximum(np.max(goal_loc, axis=0), np.max(locs, axis=0))
+    xy1 = (xymax+xymin)/2. - 1.*np.maximum(np.max(xymax-xymin), 24)
+    xy2 = (xymax+xymin)/2. + 1.*np.maximum(np.max(xymax-xymin), 24)
+
+    fig, ax = utils.tight_imshow_figure(plt, figsize=(6,6))
+    ax.set_axis_on()
+    ax.patch.set_facecolor((0.333, 0.333, 0.333))
+    ax.set_xticks([])
+    ax.set_yticks([])
+
+    all_locs = dt['all_locs'][i,:,:]*1
+    uniq = np.where(np.any(all_locs[1:,:] != all_locs[:-1,:], axis=1))[0]+1
+    uniq = np.sort(uniq).tolist()
+    uniq.insert(0,0)
+    uniq = np.array(uniq)
+    all_locs = all_locs[uniq, :]
+
+    ax.plot(dt['all_locs'][i, 0, 0], 
+            dt['all_locs'][i, 0, 1], 'b.', markersize=24)
+    ax.plot(dt['all_goal_locs'][i, 0, 0], 
+            dt['all_goal_locs'][i, 0, 1], 'g*', markersize=19)
+    ax.plot(all_locs[:,0], all_locs[:,1], 'r', alpha=0.4, linewidth=2)
+    ax.scatter(all_locs[:,0], all_locs[:,1],
+               c=5+np.arange(all_locs.shape[0])*1./all_locs.shape[0], 
+               cmap='Reds', s=30, linewidth=0)
+    ax.imshow(orig_maps, origin='lower', vmin=-1.0, vmax=2.0, aspect='equal')
+    ax.set_xlim([xy1[0], xy2[0]])
+    ax.set_ylim([xy1[1], xy2[1]])
+    
+    file_name = os.path.join(out_dir, 'trajectory_{:04d}.png'.format(i))
+    print file_name
+    with fu.fopen(file_name, 'w') as f: 
+      plt.savefig(f)
+    plt.close(fig)
+  
+
+def main(_):
+  a = _load_trajectory()
+  h_dists, gt_dists, orig_maps = _compute_hardness()
+  hardness = 1.-h_dists*1./ gt_dists
+  
+  if FLAGS.top_view:
+    plot_trajectory(a, hardness, orig_maps, out_dir=FLAGS.out_dir)
+
+  if FLAGS.first_person:
+    plot_trajectory_first_person(a, orig_maps, out_dir=FLAGS.out_dir)
+  
+if __name__ == '__main__':
+  app.run()

cognitive_mapping_and_planning/scripts/script_preprocess_annoations_S3DIS.py

+# Copyright 2016 The TensorFlow Authors All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==============================================================================
+
+import os
+import glob
+import numpy as np
+import logging
+import cPickle
+from datasets import nav_env
+from datasets import factory
+from src import utils 
+from src import map_utils as mu
+
+logging.basicConfig(level=logging.INFO)
+DATA_DIR = 'data/stanford_building_parser_dataset_raw/'
+
+mkdir_if_missing = utils.mkdir_if_missing
+save_variables = utils.save_variables
+
+def _get_semantic_maps(building_name, transform, map_, flip, cats):
+  rooms = get_room_in_building(building_name)
+  maps = []
+  for cat in cats:
+    maps.append(np.zeros((map_.size[1], map_.size[0])))
+  
+  for r in rooms:
+    room = load_room(building_name, r, category_list=cats)
+    classes = room['class_id']
+    for i, cat in enumerate(cats):
+      c_ind = cats.index(cat)
+      ind = [_ for _, c in enumerate(classes) if c == c_ind]
+      if len(ind) > 0:
+        vs = [room['vertexs'][x]*1 for x in ind]
+        vs = np.concatenate(vs, axis=0)
+        if transform:
+          vs = np.array([vs[:,1], vs[:,0], vs[:,2]]).T
+          vs[:,0] = -vs[:,0]
+          vs[:,1] += 4.20
+          vs[:,0] += 6.20
+        vs = vs*100.
+        if flip:
+          vs[:,1] = -vs[:,1]
+        maps[i] = maps[i] + \
+            mu._project_to_map(map_, vs, ignore_points_outside_map=True)
+  return maps
+
+def _map_building_name(building_name):
+  b = int(building_name.split('_')[0][4])
+  out_name = 'Area_{:d}'.format(b)
+  if b == 5:
+    if int(building_name.split('_')[0][5]) == 1:
+      transform = True
+    else:
+      transform = False
+  else:
+    transform = False
+  return out_name, transform
+
+def get_categories():
+  cats = ['beam', 'board', 'bookcase', 'ceiling', 'chair', 'clutter', 'column',
+          'door', 'floor', 'sofa', 'table', 'wall', 'window']
+  return cats
+
+def _write_map_files(b_in, b_out, transform):
+  cats = get_categories()
+
+  env = utils.Foo(padding=10, resolution=5, num_point_threshold=2,
+                  valid_min=-10, valid_max=200, n_samples_per_face=200)
+  robot = utils.Foo(radius=15, base=10, height=140, sensor_height=120,
+                    camera_elevation_degree=-15)
+  
+  building_loader = factory.get_dataset('sbpd')
+  for flip in [False, True]:
+    b = nav_env.Building(b_out, robot, env, flip=flip,
+                         building_loader=building_loader)
+    logging.info("building_in: %s, building_out: %s, transform: %d", b_in,
+                 b_out, transform)
+    maps = _get_semantic_maps(b_in, transform, b.map, flip, cats)
+    maps = np.transpose(np.array(maps), axes=[1,2,0])
+
+    #  Load file from the cache.
+    file_name = '{:s}_{:d}_{:d}_{:d}_{:d}_{:d}_{:d}.pkl'
+    file_name = file_name.format(b.building_name, b.map.size[0], b.map.size[1],
+                                 b.map.origin[0], b.map.origin[1],
+                                 b.map.resolution, flip)
+    out_file = os.path.join(DATA_DIR, 'processing', 'class-maps', file_name)
+    logging.info('Writing semantic maps to %s.', out_file)
+    save_variables(out_file, [maps, cats], ['maps', 'cats'], overwrite=True)
+
+def _transform_area5b(room_dimension):
+  for a in room_dimension.keys():
+    r = room_dimension[a]*1
+    r[[0,1,3,4]] = r[[1,0,4,3]]
+    r[[0,3]] = -r[[3,0]]
+    r[[1,4]] += 4.20
+    r[[0,3]] += 6.20
+    room_dimension[a] = r
+  return room_dimension
+
+def collect_room(building_name, room_name):
+  room_dir = os.path.join(DATA_DIR, 'Stanford3dDataset_v1.2', building_name,
+                          room_name, 'Annotations')
+  files = glob.glob1(room_dir, '*.txt')
+  files = sorted(files, key=lambda s: s.lower())
+  vertexs = []; colors = [];
+  for f in files:
+    file_name = os.path.join(room_dir, f)
+    logging.info('  %s', file_name)
+    a = np.loadtxt(file_name)
+    vertex = a[:,:3]*1.
+    color = a[:,3:]*1
+    color = color.astype(np.uint8)
+    vertexs.append(vertex)
+    colors.append(color)
+  files = [f.split('.')[0] for f in files]
+  out = {'vertexs': vertexs, 'colors': colors, 'names': files}
+  return out
+
+def load_room(building_name, room_name, category_list=None):
+  room = collect_room(building_name, room_name)
+  room['building_name'] = building_name
+  room['room_name']     = room_name
+  instance_id = range(len(room['names']))
+  room['instance_id'] = instance_id
+  if category_list is not None:
+    name = [r.split('_')[0] for r in room['names']]
+    class_id = []
+    for n in name:
+      if n in category_list:
+        class_id.append(category_list.index(n))
+      else:
+        class_id.append(len(category_list))
+    room['class_id'] = class_id
+    room['category_list'] = category_list
+  return room
+
+def get_room_in_building(building_name):
+  building_dir = os.path.join(DATA_DIR, 'Stanford3dDataset_v1.2', building_name)
+  rn = os.listdir(building_dir)
+  rn = [x for x in rn if os.path.isdir(os.path.join(building_dir, x))]
+  rn = sorted(rn, key=lambda s: s.lower())
+  return rn
+
+def write_room_dimensions(b_in, b_out, transform):
+  rooms = get_room_in_building(b_in)
+  room_dimension = {}
+  for r in rooms:
+    room = load_room(b_in, r, category_list=None)
+    vertex = np.concatenate(room['vertexs'], axis=0)
+    room_dimension[r] = np.concatenate((np.min(vertex, axis=0), np.max(vertex, axis=0)), axis=0)
+  if transform == 1:
+    room_dimension = _transform_area5b(room_dimension)
+  
+  out_file = os.path.join(DATA_DIR, 'processing', 'room-dimension', b_out+'.pkl')
+  save_variables(out_file, [room_dimension], ['room_dimension'], overwrite=True)
+
+def write_room_dimensions_all(I):
+  mkdir_if_missing(os.path.join(DATA_DIR, 'processing', 'room-dimension'))
+  bs_in = ['Area_1', 'Area_2', 'Area_3', 'Area_4', 'Area_5', 'Area_5', 'Area_6']
+  bs_out = ['area1', 'area2', 'area3', 'area4', 'area5a', 'area5b', 'area6']
+  transforms = [0, 0, 0, 0, 0, 1, 0]
+  
+  for i in I:
+    b_in = bs_in[i]
+    b_out = bs_out[i]
+    t = transforms[i]
+    write_room_dimensions(b_in, b_out, t)
+
+def write_class_maps_all(I):
+  mkdir_if_missing(os.path.join(DATA_DIR, 'processing', 'class-maps'))
+  bs_in = ['Area_1', 'Area_2', 'Area_3', 'Area_4', 'Area_5', 'Area_5', 'Area_6']
+  bs_out = ['area1', 'area2', 'area3', 'area4', 'area5a', 'area5b', 'area6']
+  transforms = [0, 0, 0, 0, 0, 1, 0]
+  
+  for i in I:
+    b_in = bs_in[i]
+    b_out = bs_out[i]
+    t = transforms[i]
+    _write_map_files(b_in, b_out, t)
+
+
+if __name__ == '__main__':
+  write_room_dimensions_all([0, 2, 3, 4, 5, 6])
+  write_class_maps_all([0, 2, 3, 4, 5, 6])
+

cognitive_mapping_and_planning/scripts/script_preprocess_annoations_S3DIS.sh

+# Copyright 2016 The TensorFlow Authors All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==============================================================================
+
+cd data/stanford_building_parser_dataset_raw
+unzip Stanford3dDataset_v1.2.zip
+cd ../../
+PYOPENGL_PLATFORM=egl PYTHONPATH='.' python scripts/script_preprocess_annoations_S3DIS.py
+
+mv data/stanford_building_parser_dataset_raw/processing/room-dimension data/stanford_building_parser_dataset/.
+mv data/stanford_building_parser_dataset_raw/processing/class-maps data/stanford_building_parser_dataset/.
+
+echo "You may now delete data/stanford_building_parser_dataset_raw if needed."