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Introduced the ability to switch between different visual properties in osgVolume

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This commit is contained in:
Robert Osfield
2009-01-21 11:46:03 +00:00
parent f23f2c351f
commit 1c88753551
4 changed files with 324 additions and 39 deletions
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71
include/osgVolume/Property
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@@ -27,6 +27,7 @@ namespace osgVolume {
// forward decarle
class Property;
class CompositeProperty;
class SwitchProperty;
class TransferFunctionProperty;
class ScalarProperty;
class IsoSurfaceProperty;
@@ -36,15 +37,17 @@ class AlphaFuncProperty;
class SampleDensityProperty;
class TransparencyProperty;
class PropertyVisitor
class OSGVOLUME_EXPORT PropertyVisitor
{
public:
PropertyVisitor() {}
PropertyVisitor(bool traverseOnlyActiveChildren=true);
virtual ~PropertyVisitor() {}
virtual void apply(Property&) {}
virtual void apply(CompositeProperty&) {}
virtual void apply(CompositeProperty&);
virtual void apply(SwitchProperty&);
virtual void apply(TransferFunctionProperty&) {}
virtual void apply(ScalarProperty&) {}
virtual void apply(IsoSurfaceProperty&) {}
@@ -53,6 +56,9 @@ class PropertyVisitor
virtual void apply(LightingProperty&) {}
virtual void apply(SampleDensityProperty&) {}
virtual void apply(TransparencyProperty&) {}
bool _traverseOnlyActiveChildren;
};
@@ -111,6 +117,34 @@ class OSGVOLUME_EXPORT CompositeProperty : public Property
Properties _properties;
};
class OSGVOLUME_EXPORT SwitchProperty : public CompositeProperty
{
public:
SwitchProperty();
/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
SwitchProperty(const SwitchProperty& switchProperty,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
META_Object(osgVolume, SwitchProperty);
virtual void accept(PropertyVisitor& pv) { pv.apply(*this); }
/** Set which child property is active.
* -1 disables all children.*/
void setActiveProperty(int i) { _activeProperty = i; }
/** Get the active property.*/
int getActiveProperty() const { return _activeProperty; }
protected:
virtual ~SwitchProperty() {}
int _activeProperty;
};
class OSGVOLUME_EXPORT TransferFunctionProperty : public Property
{
public:
@@ -294,12 +328,10 @@ class OSGVOLUME_EXPORT CollectPropertiesVisitor : public osgVolume::PropertyVisi
{
public:
CollectPropertiesVisitor();
CollectPropertiesVisitor(bool traverseOnlyActiveChildren=true);
virtual void apply(Property&);
virtual void apply(CompositeProperty& cp);
virtual void apply(TransferFunctionProperty& tf);
virtual void apply(TransferFunctionProperty&);
virtual void apply(ScalarProperty&);
virtual void apply(IsoSurfaceProperty& iso);
virtual void apply(AlphaFuncProperty& af);
@@ -308,13 +340,13 @@ class OSGVOLUME_EXPORT CollectPropertiesVisitor : public osgVolume::PropertyVisi
virtual void apply(SampleDensityProperty& sdp);
virtual void apply(TransparencyProperty& tp);
osg::ref_ptr<TransferFunctionProperty> _tfProperty;
osg::ref_ptr<IsoSurfaceProperty> _isoProperty;
osg::ref_ptr<AlphaFuncProperty> _afProperty;
osg::ref_ptr<MaximumIntensityProjectionProperty> _mipProperty;
osg::ref_ptr<LightingProperty> _lightingProperty;
osg::ref_ptr<SampleDensityProperty> _sampleDensityProperty;
osg::ref_ptr<TransparencyProperty> _transparencyProperty;
osg::ref_ptr<TransferFunctionProperty> _tfProperty;
osg::ref_ptr<IsoSurfaceProperty> _isoProperty;
osg::ref_ptr<AlphaFuncProperty> _afProperty;
osg::ref_ptr<MaximumIntensityProjectionProperty> _mipProperty;
osg::ref_ptr<LightingProperty> _lightingProperty;
osg::ref_ptr<SampleDensityProperty> _sampleDensityProperty;
osg::ref_ptr<TransparencyProperty> _transparencyProperty;
};
@@ -328,6 +360,12 @@ class PropertyAdjustmentCallback : public osgGA::GUIEventHandler, public osg::St
META_Object(osgVolume,PropertyAdjustmentCallback);
void setKeyEventCycleForward(int key) { _cyleForwardKey = key; }
int getKeyEventCyclesForward() const { return _cyleForwardKey; }
void setKeyEventCycleBackward(int key) { _cyleBackwardKey = key; }
int getKeyEventCyclesBackward() const { return _cyleBackwardKey; }
void setKeyEventActivatesTransparenyAdjustment(int key) { _transparencyKey = key; }
int getKeyEventActivatesTransparenyAdjustment() const { return _transparencyKey; }
@@ -338,7 +376,9 @@ class PropertyAdjustmentCallback : public osgGA::GUIEventHandler, public osg::St
int getKeyEventActivatesAlphaFuncAdjustment() const { return _alphaFuncKey; }
virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&, osg::Object* object, osg::NodeVisitor*);
int _cyleForwardKey;
int _cyleBackwardKey;
int _transparencyKey;
int _alphaFuncKey;
int _sampleDensityKey;
@@ -347,6 +387,7 @@ class PropertyAdjustmentCallback : public osgGA::GUIEventHandler, public osg::St
bool _updateAlphaCutOff;
bool _updateSampleDensity;
};
}
#endif