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Moved PropertyAdjustmentCallback from osgvolume.cpp into osgVolume.

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Updated lighting shaders.
This commit is contained in:
Robert Osfield
2009-01-20 17:41:45 +00:00
parent 0739b09519
commit a40aa3a734
8 changed files with 128 additions and 111 deletions
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81
src/osgVolume/Property.cpp
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@@ -12,6 +12,7 @@
*/
#include <osgVolume/Property>
#include <osgVolume/VolumeTile>
using namespace osgVolume;
@@ -201,3 +202,83 @@ void CollectPropertiesVisitor::apply(MaximumIntensityProjectionProperty& mip) {
void CollectPropertiesVisitor::apply(LightingProperty& lp) { _lightingProperty = &lp; }
void CollectPropertiesVisitor::apply(SampleDensityProperty& sdp) { _sampleDensityProperty = &sdp; }
void CollectPropertiesVisitor::apply(TransparencyProperty& tp) { _transparencyProperty = &tp; }
/////////////////////////////////////////////////////////////////////////////
//
// PropertyAdjustmentCallback
//
PropertyAdjustmentCallback::PropertyAdjustmentCallback()
{
_transparencyKey = 't';
_alphaFuncKey = 'a';
_sampleDensityKey = 'd';
_updateTransparency = false;
_updateAlphaCutOff = false;
_updateSampleDensity = false;
}
bool PropertyAdjustmentCallback::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&, osg::Object* object, osg::NodeVisitor*)
{
osgVolume::VolumeTile* tile = dynamic_cast<osgVolume::VolumeTile*>(object);
osgVolume::Layer* layer = tile ? tile->getLayer() : 0;
osgVolume::Property* property = layer ? layer->getProperty() : 0;
if (!property) return false;
osgVolume::CollectPropertiesVisitor cpv;
property->accept(cpv);
switch(ea.getEventType())
{
case(osgGA::GUIEventAdapter::MOVE):
case(osgGA::GUIEventAdapter::DRAG):
{
float v = (ea.getY()-ea.getYmin())/(ea.getYmax()-ea.getYmin());
float v2 = v*v;
float v4 = v2*v2;
if (_updateAlphaCutOff && cpv._isoProperty.valid())
{
osg::notify(osg::NOTICE)<<"Setting isoProperty to "<<v<<std::endl;
cpv._isoProperty->setValue(v);
}
if (_updateAlphaCutOff && cpv._afProperty.valid())
{
osg::notify(osg::NOTICE)<<"Setting afProperty to "<<v2<<std::endl;
cpv._afProperty->setValue(v2);
}
if (_updateTransparency && cpv._transparencyProperty.valid())
{
osg::notify(osg::NOTICE)<<"Setting transparency to "<<v2<<std::endl;
cpv._transparencyProperty->setValue(v2);
}
if (_updateSampleDensity && cpv._sampleDensityProperty.valid())
{
osg::notify(osg::NOTICE)<<"Setting sample density to "<<v4<<std::endl;
cpv._sampleDensityProperty->setValue(v4);
}
}
case(osgGA::GUIEventAdapter::KEYDOWN):
{
if (ea.getKey()=='t') _updateTransparency = true;
if (ea.getKey()=='a') _updateAlphaCutOff = true;
if (ea.getKey()=='d') _updateSampleDensity = true;
break;
}
case(osgGA::GUIEventAdapter::KEYUP):
{
if (ea.getKey()=='t') _updateTransparency = false;
if (ea.getKey()=='a') _updateAlphaCutOff = false;
if (ea.getKey()=='d') _updateSampleDensity = false;
break;
}
default:
break;
}
return false;
}