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<h1>Source code for dna_viewer.builder.mesh</h1><div class="highlight"><pre>
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<span></span><span class="kn">import</span> <span class="nn">logging</span>
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<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">List</span>
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<span class="kn">from</span> <span class="nn">..builder.maya_mesh</span> <span class="kn">import</span> <span class="n">MayaMesh</span> <span class="k">as</span> <span class="n">MayaMeshBuilder</span>
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<span class="kn">from</span> <span class="nn">..config.character</span> <span class="kn">import</span> <span class="n">BuildOptions</span><span class="p">,</span> <span class="n">Character</span><span class="p">,</span> <span class="n">SpaceModifiers</span>
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<span class="kn">from</span> <span class="nn">..config.mesh</span> <span class="kn">import</span> <span class="n">Mesh</span> <span class="k">as</span> <span class="n">MeshConfig</span>
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<span class="kn">from</span> <span class="nn">..model.dna</span> <span class="kn">import</span> <span class="n">DNA</span>
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<span class="kn">from</span> <span class="nn">..util.mesh_skin</span> <span class="kn">import</span> <span class="n">MeshSkin</span>
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<span class="kn">from</span> <span class="nn">..util.reference</span> <span class="kn">import</span> <span class="n">get_geometry_reader</span>
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<div class="viewcode-block" id="Mesh"><a class="viewcode-back" href="../../../dna_viewer.builder.html#dna_viewer.builder.mesh.Mesh">[docs]</a><span class="k">class</span> <span class="nc">Mesh</span><span class="p">:</span>
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<span class="sd">"""</span>
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<span class="sd"> A builder class used for adding joints to the scene</span>
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<span class="sd"> Attributes</span>
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<span class="sd"> ----------</span>
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<span class="sd"> @type dna: DNA</span>
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<span class="sd"> @param dna: The location of the DNA file</span>
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<span class="sd"> @type mesh_index: int</span>
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<span class="sd"> @param mesh_index: The mesh index we are working with</span>
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<span class="sd"> @type joint_ids: List[int]</span>
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<span class="sd"> @param joint_ids: The joint indices used for adding skin</span>
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<span class="sd"> @type joint_names: List[str]</span>
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<span class="sd"> @param joint_names: The joint names used for adding skin</span>
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<span class="sd"> @type options: BuildOptions</span>
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<span class="sd"> @param options: The build options that will be applied when creating the mesh</span>
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<span class="sd"> @type modifiers: SpaceModifiers</span>
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<span class="sd"> @param modifiers: Space modifiers that should be applied when creating the mesh</span>
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<span class="sd"> @type config: Character</span>
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<span class="sd"> @param config: The character configuration options used for getting information about the DNA path, build options and space modifiers</span>
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<span class="sd"> @type mesh: MayaMeshBuilder</span>
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<span class="sd"> @param mesh: The builder class object for creating the meshes</span>
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<span class="sd"> @type dna: DNA</span>
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<span class="sd"> @param dna: The DNA object that was loaded in</span>
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<span class="sd"> """</span>
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<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span>
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<span class="bp">self</span><span class="p">,</span>
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<span class="n">character_config</span><span class="p">:</span> <span class="n">Character</span><span class="p">,</span>
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<span class="n">dna</span><span class="p">:</span> <span class="n">DNA</span><span class="p">,</span>
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<span class="n">mesh_index</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span>
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<span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">mesh_index</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="n">mesh_index</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">joint_ids</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">joint_names</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">options</span><span class="p">:</span> <span class="n">BuildOptions</span> <span class="o">=</span> <span class="n">character_config</span><span class="o">.</span><span class="n">options</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">modifiers</span><span class="p">:</span> <span class="n">SpaceModifiers</span> <span class="o">=</span> <span class="n">character_config</span><span class="o">.</span><span class="n">modifiers</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">config</span> <span class="o">=</span> <span class="n">MeshConfig</span><span class="p">(</span>
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<span class="n">mesh_index</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">mesh_index</span><span class="p">,</span>
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<span class="n">linear_modifier</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">modifiers</span><span class="o">.</span><span class="n">linear_modifier</span><span class="p">,</span>
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<span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">dna</span> <span class="o">=</span> <span class="n">dna</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">mesh</span> <span class="o">=</span> <span class="n">MayaMeshBuilder</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">config</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">dna</span><span class="p">)</span>
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<div class="viewcode-block" id="Mesh.build"><a class="viewcode-back" href="../../../dna_viewer.builder.html#dna_viewer.builder.mesh.Mesh.build">[docs]</a> <span class="k">def</span> <span class="nf">build</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="sd">"""Starts the build process, creates the neutral mesh, then adds normals, blends shapes and skin if needed"""</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">create_neutral_mesh</span><span class="p">()</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">add_normals</span><span class="p">()</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">add_blend_shapes</span><span class="p">()</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">add_skin</span><span class="p">()</span></div>
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<div class="viewcode-block" id="Mesh.create_neutral_mesh"><a class="viewcode-back" href="../../../dna_viewer.builder.html#dna_viewer.builder.mesh.Mesh.create_neutral_mesh">[docs]</a> <span class="k">def</span> <span class="nf">create_neutral_mesh</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="sd">"""Creates the neutral mesh"""</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">mesh</span><span class="o">.</span><span class="n">create_neutral_mesh</span><span class="p">()</span></div>
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<div class="viewcode-block" id="Mesh.add_normals"><a class="viewcode-back" href="../../../dna_viewer.builder.html#dna_viewer.builder.mesh.Mesh.add_normals">[docs]</a> <span class="k">def</span> <span class="nf">add_normals</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="sd">"""Adds normals to the mesh if it is set in the build options"""</span>
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<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">options</span><span class="o">.</span><span class="n">add_normals</span><span class="p">:</span>
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<span class="n">logging</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s2">"adding normals..."</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">mesh</span><span class="o">.</span><span class="n">add_normals</span><span class="p">()</span></div>
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<div class="viewcode-block" id="Mesh.add_blend_shapes"><a class="viewcode-back" href="../../../dna_viewer.builder.html#dna_viewer.builder.mesh.Mesh.add_blend_shapes">[docs]</a> <span class="k">def</span> <span class="nf">add_blend_shapes</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="sd">"""Reads in the blend shapes, then adds them to the mesh if it is set in the build options"""</span>
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<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">options</span><span class="o">.</span><span class="n">add_blend_shapes</span><span class="p">:</span>
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<span class="n">logging</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s2">"reading blend shapes..."</span><span class="p">)</span>
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<span class="n">geometry_reader</span> <span class="o">=</span> <span class="n">get_geometry_reader</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mesh_index</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">dna</span><span class="o">.</span><span class="n">path</span><span class="p">)</span>
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<span class="n">geometry_reader</span><span class="o">.</span><span class="n">read_blend_shapes</span><span class="p">(</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">dna</span><span class="o">.</span><span class="n">get_mesh_data</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mesh_index</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">mesh_index</span>
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<span class="p">)</span>
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<span class="n">logging</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s2">"adding blend shapes..."</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">mesh</span><span class="o">.</span><span class="n">add_blend_shapes</span><span class="p">(</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">options</span><span class="o">.</span><span class="n">add_mesh_name_to_blend_shape_channel_name</span>
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<span class="p">)</span></div>
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<div class="viewcode-block" id="Mesh.add_skin"><a class="viewcode-back" href="../../../dna_viewer.builder.html#dna_viewer.builder.mesh.Mesh.add_skin">[docs]</a> <span class="k">def</span> <span class="nf">add_skin</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="sd">"""Adds skin to the mesh if it is set in the build options"""</span>
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<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">options</span><span class="o">.</span><span class="n">add_skin</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">options</span><span class="o">.</span><span class="n">add_joints</span><span class="p">:</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">joint_ids</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">joint_names</span> <span class="o">=</span> <span class="n">MeshSkin</span><span class="o">.</span><span class="n">prepare_joints</span><span class="p">(</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">dna</span><span class="p">,</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">mesh_index</span><span class="p">,</span>
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<span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">mesh</span><span class="o">.</span><span class="n">add_skin</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">joint_names</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">joint_ids</span><span class="p">)</span></div></div>
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</pre></div>
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