Introduced the ability to switch between different visual properties in osgVolume
This commit is contained in:
Robert Osfield
parent
f23f2c351f
commit
1c88753551
@ -1274,7 +1274,8 @@ int main( int argc, char **argv )
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tile->setLayer(layer.get());
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tile->setEventCallback(new osgVolume::PropertyAdjustmentCallback());
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#if 0
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if (useShader)
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{
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switch(shadingModel)
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@ -1306,7 +1307,49 @@ int main( int argc, char **argv )
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layer->addProperty(new osgVolume::AlphaFuncProperty(alphaFunc));
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tile->setVolumeTechnique(new osgVolume::FixedFunctionTechnique);
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}
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#else
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osgVolume::SwitchProperty* sp = new osgVolume::SwitchProperty;
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sp->setActiveProperty(0);
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{
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// Standard
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osgVolume::CompositeProperty* cp = new osgVolume::CompositeProperty;
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cp->addProperty(new osgVolume::AlphaFuncProperty(alphaFunc));
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sp->addProperty(cp);
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}
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{
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// Light
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osgVolume::CompositeProperty* cp = new osgVolume::CompositeProperty;
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cp->addProperty(new osgVolume::AlphaFuncProperty(alphaFunc));
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cp->addProperty(new osgVolume::LightingProperty);
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sp->addProperty(cp);
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}
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{
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// Isosurface
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osgVolume::CompositeProperty* cp = new osgVolume::CompositeProperty;
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cp->addProperty(new osgVolume::IsoSurfaceProperty(alphaFunc));
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sp->addProperty(cp);
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}
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{
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// MaximumIntensityProjection
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osgVolume::CompositeProperty* cp = new osgVolume::CompositeProperty;
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cp->addProperty(new osgVolume::AlphaFuncProperty(alphaFunc));
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cp->addProperty(new osgVolume::MaximumIntensityProjectionProperty);
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sp->addProperty(cp);
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}
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layer->addProperty(sp);
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tile->setVolumeTechnique(new osgVolume::ShaderTechnique);
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#endif
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rootNode = volume.get();
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}
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@ -27,6 +27,7 @@ namespace osgVolume {
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// forward decarle
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class Property;
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class CompositeProperty;
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class SwitchProperty;
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class TransferFunctionProperty;
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class ScalarProperty;
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class IsoSurfaceProperty;
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@ -36,15 +37,17 @@ class AlphaFuncProperty;
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class SampleDensityProperty;
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class TransparencyProperty;
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class PropertyVisitor
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class OSGVOLUME_EXPORT PropertyVisitor
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{
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public:
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PropertyVisitor() {}
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PropertyVisitor(bool traverseOnlyActiveChildren=true);
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virtual ~PropertyVisitor() {}
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virtual void apply(Property&) {}
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virtual void apply(CompositeProperty&) {}
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virtual void apply(CompositeProperty&);
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virtual void apply(SwitchProperty&);
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virtual void apply(TransferFunctionProperty&) {}
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virtual void apply(ScalarProperty&) {}
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virtual void apply(IsoSurfaceProperty&) {}
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@ -53,6 +56,9 @@ class PropertyVisitor
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virtual void apply(LightingProperty&) {}
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virtual void apply(SampleDensityProperty&) {}
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virtual void apply(TransparencyProperty&) {}
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bool _traverseOnlyActiveChildren;
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};
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@ -111,6 +117,34 @@ class OSGVOLUME_EXPORT CompositeProperty : public Property
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Properties _properties;
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};
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class OSGVOLUME_EXPORT SwitchProperty : public CompositeProperty
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{
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public:
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SwitchProperty();
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/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
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SwitchProperty(const SwitchProperty& switchProperty,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
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META_Object(osgVolume, SwitchProperty);
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virtual void accept(PropertyVisitor& pv) { pv.apply(*this); }
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/** Set which child property is active.
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* -1 disables all children.*/
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void setActiveProperty(int i) { _activeProperty = i; }
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/** Get the active property.*/
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int getActiveProperty() const { return _activeProperty; }
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protected:
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virtual ~SwitchProperty() {}
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int _activeProperty;
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};
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class OSGVOLUME_EXPORT TransferFunctionProperty : public Property
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{
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public:
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@ -294,12 +328,10 @@ class OSGVOLUME_EXPORT CollectPropertiesVisitor : public osgVolume::PropertyVisi
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{
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public:
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CollectPropertiesVisitor();
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CollectPropertiesVisitor(bool traverseOnlyActiveChildren=true);
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virtual void apply(Property&);
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virtual void apply(CompositeProperty& cp);
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virtual void apply(TransferFunctionProperty& tf);
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virtual void apply(TransferFunctionProperty&);
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virtual void apply(ScalarProperty&);
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virtual void apply(IsoSurfaceProperty& iso);
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virtual void apply(AlphaFuncProperty& af);
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@ -308,13 +340,13 @@ class OSGVOLUME_EXPORT CollectPropertiesVisitor : public osgVolume::PropertyVisi
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virtual void apply(SampleDensityProperty& sdp);
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virtual void apply(TransparencyProperty& tp);
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osg::ref_ptr<TransferFunctionProperty> _tfProperty;
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osg::ref_ptr<IsoSurfaceProperty> _isoProperty;
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osg::ref_ptr<AlphaFuncProperty> _afProperty;
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osg::ref_ptr<MaximumIntensityProjectionProperty> _mipProperty;
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osg::ref_ptr<LightingProperty> _lightingProperty;
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osg::ref_ptr<SampleDensityProperty> _sampleDensityProperty;
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osg::ref_ptr<TransparencyProperty> _transparencyProperty;
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osg::ref_ptr<TransferFunctionProperty> _tfProperty;
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osg::ref_ptr<IsoSurfaceProperty> _isoProperty;
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osg::ref_ptr<AlphaFuncProperty> _afProperty;
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osg::ref_ptr<MaximumIntensityProjectionProperty> _mipProperty;
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osg::ref_ptr<LightingProperty> _lightingProperty;
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osg::ref_ptr<SampleDensityProperty> _sampleDensityProperty;
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osg::ref_ptr<TransparencyProperty> _transparencyProperty;
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};
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@ -328,6 +360,12 @@ class PropertyAdjustmentCallback : public osgGA::GUIEventHandler, public osg::St
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META_Object(osgVolume,PropertyAdjustmentCallback);
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void setKeyEventCycleForward(int key) { _cyleForwardKey = key; }
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int getKeyEventCyclesForward() const { return _cyleForwardKey; }
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void setKeyEventCycleBackward(int key) { _cyleBackwardKey = key; }
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int getKeyEventCyclesBackward() const { return _cyleBackwardKey; }
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void setKeyEventActivatesTransparenyAdjustment(int key) { _transparencyKey = key; }
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int getKeyEventActivatesTransparenyAdjustment() const { return _transparencyKey; }
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@ -338,7 +376,9 @@ class PropertyAdjustmentCallback : public osgGA::GUIEventHandler, public osg::St
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int getKeyEventActivatesAlphaFuncAdjustment() const { return _alphaFuncKey; }
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virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&, osg::Object* object, osg::NodeVisitor*);
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int _cyleForwardKey;
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int _cyleBackwardKey;
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int _transparencyKey;
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int _alphaFuncKey;
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int _sampleDensityKey;
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@ -347,6 +387,7 @@ class PropertyAdjustmentCallback : public osgGA::GUIEventHandler, public osg::St
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bool _updateAlphaCutOff;
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bool _updateSampleDensity;
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};
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}
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#endif
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@ -48,6 +48,21 @@ void CompositeProperty::clear()
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_properties.clear();
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}
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/////////////////////////////////////////////////////////////////////////////
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//
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// SwitchProperty
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//
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SwitchProperty::SwitchProperty()
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{
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}
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SwitchProperty::SwitchProperty(const SwitchProperty& switchProperty, const osg::CopyOp& copyop):
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CompositeProperty(switchProperty,copyop),
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_activeProperty(switchProperty._activeProperty)
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{
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}
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/////////////////////////////////////////////////////////////////////////////
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//
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// TransferFunctionProperty
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@ -180,13 +195,14 @@ TransparencyProperty::TransparencyProperty(const TransparencyProperty& isp,const
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/////////////////////////////////////////////////////////////////////////////
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//
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// CollectPropertiesVisitor
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// PropertyVisitor
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//
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CollectPropertiesVisitor::CollectPropertiesVisitor() {}
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PropertyVisitor::PropertyVisitor(bool traverseOnlyActiveChildren):
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_traverseOnlyActiveChildren(traverseOnlyActiveChildren)
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{
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}
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void CollectPropertiesVisitor::apply(Property&) {}
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void CollectPropertiesVisitor::apply(CompositeProperty& cp)
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void PropertyVisitor::apply(CompositeProperty& cp)
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{
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for(unsigned int i=0; i<cp.getNumProperties(); ++i)
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{
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@ -194,6 +210,35 @@ void CollectPropertiesVisitor::apply(CompositeProperty& cp)
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}
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}
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void PropertyVisitor::apply(SwitchProperty& sp)
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{
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if (_traverseOnlyActiveChildren)
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{
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if (sp.getActiveProperty()>=0 && sp.getActiveProperty()<static_cast<int>(sp.getNumProperties()))
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{
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sp.getProperty(sp.getActiveProperty())->accept(*this);
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}
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}
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else
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{
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for(unsigned int i=0; i<sp.getNumProperties(); ++i)
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{
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sp.getProperty(i)->accept(*this);
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}
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}
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}
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/////////////////////////////////////////////////////////////////////////////
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//
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// CollectPropertiesVisitor
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//
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CollectPropertiesVisitor::CollectPropertiesVisitor(bool traverseOnlyActiveChildren):
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PropertyVisitor(traverseOnlyActiveChildren)
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{
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}
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void CollectPropertiesVisitor::apply(Property&) {}
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void CollectPropertiesVisitor::apply(TransferFunctionProperty& tf) { _tfProperty = &tf; }
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void CollectPropertiesVisitor::apply(ScalarProperty&) {}
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void CollectPropertiesVisitor::apply(IsoSurfaceProperty& iso) { _isoProperty = &iso; }
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@ -204,12 +249,64 @@ void CollectPropertiesVisitor::apply(SampleDensityProperty& sdp) { _sampleDensit
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void CollectPropertiesVisitor::apply(TransparencyProperty& tp) { _transparencyProperty = &tp; }
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class CycleSwitchVisitor : public osgVolume::PropertyVisitor
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{
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public:
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CycleSwitchVisitor(int delta):
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PropertyVisitor(false),
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_delta(delta),
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_switchModified(true) {}
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virtual void apply(SwitchProperty& sp)
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{
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if (sp.getNumProperties()>=2)
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{
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if (_delta>0)
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{
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int newValue = sp.getActiveProperty()+_delta;
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if (newValue<static_cast<int>(sp.getNumProperties()))
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{
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sp.setActiveProperty(newValue);
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}
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else
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{
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sp.setActiveProperty(0);
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}
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_switchModified = true;
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}
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else // _delta<0
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{
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int newValue = sp.getActiveProperty()+_delta;
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if (newValue>=0)
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{
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sp.setActiveProperty(newValue);
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}
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else
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{
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sp.setActiveProperty(sp.getNumProperties()-1);
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}
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_switchModified = true;
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}
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}
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PropertyVisitor::apply(sp);
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}
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int _delta;
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bool _switchModified;
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};
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/////////////////////////////////////////////////////////////////////////////
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//
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// PropertyAdjustmentCallback
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//
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PropertyAdjustmentCallback::PropertyAdjustmentCallback()
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{
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_cyleForwardKey = 'v';
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_cyleBackwardKey = 'V';
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_transparencyKey = 't';
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_alphaFuncKey = 'a';
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_sampleDensityKey = 'd';
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@ -264,16 +361,26 @@ bool PropertyAdjustmentCallback::handle(const osgGA::GUIEventAdapter& ea,osgGA::
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}
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case(osgGA::GUIEventAdapter::KEYDOWN):
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{
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if (ea.getKey()=='t') _updateTransparency = true;
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if (ea.getKey()=='a') _updateAlphaCutOff = true;
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if (ea.getKey()=='d') _updateSampleDensity = true;
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if (ea.getKey()==_cyleForwardKey || ea.getKey()==_cyleBackwardKey)
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{
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CycleSwitchVisitor csv( (ea.getKey()==_cyleForwardKey) ? 1 : -1);
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property->accept(csv);
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if (csv._switchModified)
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{
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tile->setDirty(true);
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tile->init();
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}
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}
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else if (ea.getKey()==_transparencyKey) _updateTransparency = true;
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else if (ea.getKey()==_alphaFuncKey) _updateAlphaCutOff = true;
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else if (ea.getKey()==_sampleDensityKey) _updateSampleDensity = true;
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break;
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}
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case(osgGA::GUIEventAdapter::KEYUP):
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{
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if (ea.getKey()=='t') _updateTransparency = false;
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if (ea.getKey()=='a') _updateAlphaCutOff = false;
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if (ea.getKey()=='d') _updateSampleDensity = false;
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if (ea.getKey()==_transparencyKey) _updateTransparency = false;
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else if (ea.getKey()==_alphaFuncKey) _updateAlphaCutOff = false;
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else if (ea.getKey()==_sampleDensityKey) _updateSampleDensity = false;
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break;
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}
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default:
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@ -96,20 +96,17 @@ END_REFLECTOR
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BEGIN_OBJECT_REFLECTOR(osgVolume::CollectPropertiesVisitor)
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I_DeclaringFile("osgVolume/Property");
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I_BaseType(osgVolume::PropertyVisitor);
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I_Constructor0(____CollectPropertiesVisitor,
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"",
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"");
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I_ConstructorWithDefaults1(IN, bool, traverseOnlyActiveChildren, true,
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Properties::NON_EXPLICIT,
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____CollectPropertiesVisitor__bool,
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"",
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"");
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I_Method1(void, apply, IN, osgVolume::Property &, x,
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Properties::VIRTUAL,
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__void__apply__Property_R1,
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"",
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"");
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I_Method1(void, apply, IN, osgVolume::CompositeProperty &, cp,
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Properties::VIRTUAL,
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__void__apply__CompositeProperty_R1,
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"",
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"");
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I_Method1(void, apply, IN, osgVolume::TransferFunctionProperty &, tf,
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I_Method1(void, apply, IN, osgVolume::TransferFunctionProperty &, x,
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Properties::VIRTUAL,
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__void__apply__TransferFunctionProperty_R1,
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"",
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@ -447,6 +444,26 @@ BEGIN_OBJECT_REFLECTOR(osgVolume::PropertyAdjustmentCallback)
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__C5_char_P1__className,
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"return the name of the object's class type. ",
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"Must be defined by derived classes. ");
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I_Method1(void, setKeyEventCycleForward, IN, int, key,
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Properties::NON_VIRTUAL,
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__void__setKeyEventCycleForward__int,
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"",
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"");
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I_Method0(int, getKeyEventCyclesForward,
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Properties::NON_VIRTUAL,
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__int__getKeyEventCyclesForward,
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"",
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"");
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I_Method1(void, setKeyEventCycleBackward, IN, int, key,
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Properties::NON_VIRTUAL,
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__void__setKeyEventCycleBackward__int,
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"",
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"");
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I_Method0(int, getKeyEventCyclesBackward,
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Properties::NON_VIRTUAL,
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__int__getKeyEventCyclesBackward,
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"",
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"");
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I_Method1(void, setKeyEventActivatesTransparenyAdjustment, IN, int, key,
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Properties::NON_VIRTUAL,
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__void__setKeyEventActivatesTransparenyAdjustment__int,
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@ -494,6 +511,20 @@ BEGIN_OBJECT_REFLECTOR(osgVolume::PropertyAdjustmentCallback)
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I_SimpleProperty(int, KeyEventActivatesTransparenyAdjustment,
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__int__getKeyEventActivatesTransparenyAdjustment,
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__void__setKeyEventActivatesTransparenyAdjustment__int);
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I_SimpleProperty(int, KeyEventCycleBackward,
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0,
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__void__setKeyEventCycleBackward__int);
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I_SimpleProperty(int, KeyEventCycleForward,
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0,
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__void__setKeyEventCycleForward__int);
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I_SimpleProperty(int, KeyEventCyclesBackward,
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__int__getKeyEventCyclesBackward,
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0);
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I_SimpleProperty(int, KeyEventCyclesForward,
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__int__getKeyEventCyclesForward,
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0);
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I_PublicMemberProperty(int, _cyleForwardKey);
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I_PublicMemberProperty(int, _cyleBackwardKey);
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I_PublicMemberProperty(int, _transparencyKey);
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I_PublicMemberProperty(int, _alphaFuncKey);
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I_PublicMemberProperty(int, _sampleDensityKey);
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@ -504,9 +535,11 @@ END_REFLECTOR
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BEGIN_VALUE_REFLECTOR(osgVolume::PropertyVisitor)
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I_DeclaringFile("osgVolume/Property");
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I_Constructor0(____PropertyVisitor,
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"",
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"");
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I_ConstructorWithDefaults1(IN, bool, traverseOnlyActiveChildren, true,
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Properties::NON_EXPLICIT,
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____PropertyVisitor__bool,
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"",
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"");
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I_Method1(void, apply, IN, osgVolume::Property &, x,
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Properties::VIRTUAL,
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__void__apply__Property_R1,
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@ -517,6 +550,11 @@ BEGIN_VALUE_REFLECTOR(osgVolume::PropertyVisitor)
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__void__apply__CompositeProperty_R1,
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"",
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"");
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I_Method1(void, apply, IN, osgVolume::SwitchProperty &, x,
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Properties::VIRTUAL,
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__void__apply__SwitchProperty_R1,
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"",
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"");
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I_Method1(void, apply, IN, osgVolume::TransferFunctionProperty &, x,
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Properties::VIRTUAL,
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__void__apply__TransferFunctionProperty_R1,
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@ -557,6 +595,7 @@ BEGIN_VALUE_REFLECTOR(osgVolume::PropertyVisitor)
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__void__apply__TransparencyProperty_R1,
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"",
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"");
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I_PublicMemberProperty(bool, _traverseOnlyActiveChildren);
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END_REFLECTOR
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|
||||
BEGIN_OBJECT_REFLECTOR(osgVolume::SampleDensityProperty)
|
||||
@ -675,6 +714,61 @@ BEGIN_OBJECT_REFLECTOR(osgVolume::ScalarProperty)
|
||||
__void__setValue__float);
|
||||
END_REFLECTOR
|
||||
|
||||
BEGIN_OBJECT_REFLECTOR(osgVolume::SwitchProperty)
|
||||
I_DeclaringFile("osgVolume/Property");
|
||||
I_BaseType(osgVolume::CompositeProperty);
|
||||
I_Constructor0(____SwitchProperty,
|
||||
"",
|
||||
"");
|
||||
I_ConstructorWithDefaults2(IN, const osgVolume::SwitchProperty &, switchProperty, , IN, const osg::CopyOp &, copyop, osg::CopyOp::SHALLOW_COPY,
|
||||
____SwitchProperty__C5_SwitchProperty_R1__C5_osg_CopyOp_R1,
|
||||
"Copy constructor using CopyOp to manage deep vs shallow copy. ",
|
||||
"");
|
||||
I_Method0(osg::Object *, cloneType,
|
||||
Properties::VIRTUAL,
|
||||
__osg_Object_P1__cloneType,
|
||||
"Clone the type of an object, with Object* return type. ",
|
||||
"Must be defined by derived classes. ");
|
||||
I_Method1(osg::Object *, clone, IN, const osg::CopyOp &, copyop,
|
||||
Properties::VIRTUAL,
|
||||
__osg_Object_P1__clone__C5_osg_CopyOp_R1,
|
||||
"Clone an object, with Object* return type. ",
|
||||
"Must be defined by derived classes. ");
|
||||
I_Method1(bool, isSameKindAs, IN, const osg::Object *, obj,
|
||||
Properties::VIRTUAL,
|
||||
__bool__isSameKindAs__C5_osg_Object_P1,
|
||||
"",
|
||||
"");
|
||||
I_Method0(const char *, libraryName,
|
||||
Properties::VIRTUAL,
|
||||
__C5_char_P1__libraryName,
|
||||
"return the name of the object's library. ",
|
||||
"Must be defined by derived classes. The OpenSceneGraph convention is that the namespace of a library is the same as the library name. ");
|
||||
I_Method0(const char *, className,
|
||||
Properties::VIRTUAL,
|
||||
__C5_char_P1__className,
|
||||
"return the name of the object's class type. ",
|
||||
"Must be defined by derived classes. ");
|
||||
I_Method1(void, accept, IN, osgVolume::PropertyVisitor &, pv,
|
||||
Properties::VIRTUAL,
|
||||
__void__accept__PropertyVisitor_R1,
|
||||
"",
|
||||
"");
|
||||
I_Method1(void, setActiveProperty, IN, int, i,
|
||||
Properties::NON_VIRTUAL,
|
||||
__void__setActiveProperty__int,
|
||||
"Set which child property is active. ",
|
||||
"-1 disables all children. ");
|
||||
I_Method0(int, getActiveProperty,
|
||||
Properties::NON_VIRTUAL,
|
||||
__int__getActiveProperty,
|
||||
"Get the active property. ",
|
||||
"");
|
||||
I_SimpleProperty(int, ActiveProperty,
|
||||
__int__getActiveProperty,
|
||||
__void__setActiveProperty__int);
|
||||
END_REFLECTOR
|
||||
|
||||
BEGIN_OBJECT_REFLECTOR(osgVolume::TransferFunctionProperty)
|
||||
I_DeclaringFile("osgVolume/Property");
|
||||
I_BaseType(osgVolume::Property);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user