Add no visualization option

OpenSim/Simulation/Model/Geometry.cpp

@@ -237,6 +237,11 @@ void Mesh::extendFinalizeFromProperties() {
             std::cout << "Mesh " << get_mesh_file() << " not connected to model..ignoring" << std::endl;
             return;   // Orphan Mesh not descendant of a model
         }
+        const Model* ownerModel = dynamic_cast<const Model*>(rootModel);
+
+        //No visualization don't try to load meshes
+        if (!ownerModel->visualizationIsEnabled())
+            return;
 
         // Current interface to Visualizer calls generateDecorations on every
         // frame. On first time through, load file and create DecorativeMeshFile

OpenSim/Simulation/Model/Model.h

@@ -328,7 +328,20 @@ OpenSim_OBJECT_NONTEMPLATE_DEFS(Model, ModelComponent);
     ModelVisualizer that provides visualization and interaction with the %Model
     as it is executing. The default is no visualization. 
     @see getModelVisualizer() **/
-    void setUseVisualizer(bool visualize) {_useVisualizer=visualize;}
+    void setUseVisualizer(bool visualize) {
+        _useVisualizer=visualize;
+        enableVisualization(visualize);
+    }
+    // Enable visualization overall, loading mesh files etc.
+    void enableVisualization(bool enable) {
+        // Propagate flag so that meshes are loaded (or not)
+        upd_ModelVisualPreferences().setVisualize(enable);
+        finalizeFromProperties();
+    }
+    // Return status if visualize flag (different from useVisualizer)
+    bool visualizationIsEnabled() const {
+        return get_ModelVisualPreferences().visualize();
+    }
     /** Return the current setting of the "use visualizer" flag, which will
     take effect at the next call to initSystem() on this %Model. **/
     bool getUseVisualizer() const {return _useVisualizer;}
@@ -1064,7 +1077,7 @@ OpenSim_OBJECT_NONTEMPLATE_DEFS(Model, ModelComponent);
         SimTK::Array_<SimTK::DecorativeGeometry>&   appendToThis) const 
                                                                 override;
     /**@}**/
-    
+
     //--------------------------------------------------------------------------
 
 private:

OpenSim/Simulation/Model/ModelVisualPreferences.h

@@ -53,7 +53,6 @@ class OSIMSIMULATION_API ModelVisualPreferences : public Object {
     //==========================================================================
     OpenSim_DECLARE_UNNAMED_PROPERTY(ModelDisplayHints,
         "Model display preferences");
-
     //--------------------------------------------------------------------------
     // CONSTRUCTION
     //--------------------------------------------------------------------------
@@ -63,10 +62,17 @@ class OSIMSIMULATION_API ModelVisualPreferences : public Object {
     }
     virtual ~ModelVisualPreferences() {};
 
+    bool visualize() const {
+        return _visualize;
+    }
+    void setVisualize(bool visualizationStatus) {
+        _visualize = visualizationStatus;
+    }
 private:
     void constructProperties() {
         constructProperty_ModelDisplayHints(ModelDisplayHints());
     }
+    bool _visualize;
 //=============================================================================
 };  // END of class ModelVisualPreferences
 //=============================================================================

OpenSim/Tools/Test/testVisualization.cpp

@@ -121,14 +121,16 @@ int main()
         LoadOpenSimLibrary("osimActuators");
 
         Model testModel("BuiltinGeometry.osim");
+        testModel.enableVisualization(true);
         testVisModel(testModel, "vis_BuiltinGeometry.txt");
         std::cout << "BuiltinGeometry Passed" << std::endl;
         Model testModel2 = createModel4AppearanceTest();
+        testModel2.enableVisualization(true);
         testVisModel(testModel2, "vis_AppearanceTest.txt");
         std::cout << "Appearance test Passed" << std::endl;
         // Load Model in 3.3 format that had transforms attached to Geometry
         Model testModel3("double_pendulum33.osim");
-
+        testModel3.enableVisualization(true);
         SimTK::Array_<DecorativeGeometry> standard;
         testModel3.updDisplayHints().set_show_frames(true);
         populate_doublePendulumPrimitives(standard);
@@ -138,17 +140,20 @@ int main()
         // Now a model from 3.3 where both GeometrySet and individual DisplayGeometry 
         // have a non-trivial transform.
         Model composedTransformsModel("doubletransform33.osim");
+        composedTransformsModel.enableVisualization(true);
         composedTransformsModel.updDisplayHints().set_show_frames(true);
         populate_composedTransformPrimitives(standard);
         testVisModelAgainstStandard(composedTransformsModel, standard);
         // Model with contacts
         Model modelWithContacts("visualize_contacts.osim");
+        modelWithContacts.enableVisualization(true);
         modelWithContacts.updDisplayHints().set_show_frames(true);
         populate_contactModelPrimitives(standard);
         testVisModelAgainstStandard(modelWithContacts, standard);
 
         // Model with WrapObjects
         Model modelWithWrap("test_wrapAllVis.osim");
+        modelWithWrap.enableVisualization(true);
         modelWithWrap.updDisplayHints().set_show_frames(true);
         populate_wrapModelPrimitives(standard);
         modelWithWrap.updDisplayHints().set_show_frames(false);