OsgOsg使用NodeCallback实现Switch(Qt5.14.2+osgE3.6.5+win10)No30NodeCallbackSwitch

相关资料

https://zhuanlan.zhihu.com/p/39737602

实例代码

.pro

 1 QT       += core gui widgets
 2 QT       += opengl
 3 TARGET = TestOsgQt
 4 TEMPLATE = app
 5 DEFINES += QT_DEPRECATED_WARNINGS
 6 CONFIG += c++11
 7 
 8 SOURCES += \
 9         main.cpp
10 
11 HEADERS +=
12 
13 OsgDir = D:\\Gitee\\osg365R
14 CONFIG(release, debug|release) {
15         LIBS += -L$${OsgDir}/lib/ -losgDB -losgViewer -lOpenThreads -losgAnimation -losg \
16                                   -losgEarth -losgEarthAnnotation -losgEarthFeatures -losgEarthSymbology -losgEarthUtil \
17                                   -losgQOpenGL -losgUtil -losgText -losgTerrain -losgSim \
18                                   -losgShadow -losgParticle -losgManipulator -losgGA -losgFX \
19                                   -losgWidget
20 } else {
21         LIBS += -L$${OsgDir}/debug/lib/ -losgDBd -losgViewerd -lOpenThreadsd -losgAnimationd -losgd \
22                                   -losgEarthd -losgEarthAnnotationd -losgEarthFeaturesd -losgEarthSymbologyd -losgEarthUtild \
23                                   -losgQOpenGLd -losgUtild -losgTextd -losgTerraind -losgSimd \
24                                   -losgShadowd -losgParticled -losgManipulatord -losgGAd -losgFXd \
25 }
26 
27 LIBS += -lOpenGL32
28 LIBS += -lGlU32
29 
30 INCLUDEPATH += $${OsgDir}/include
31 DEPENDPATH += $${OsgDir}/include

View Code

main.cpp

 1 #include <osg/Switch>
 2 #include <osgDB/ReadFile>
 3 #include <osgViewer/Viewer>
 4 
 5 class SwitchingCallback : public osg::NodeCallback
 6 {
 7 public:
 8     SwitchingCallback() : _count(0) {}
 9 
10     virtual void operator()( osg::Node* node, osg::NodeVisitor* nv )
11     {
12         osg::Switch* switchNode = static_cast<osg::Switch*>( node );
13         if ( !((++_count)%60) && switchNode )
14         {
15             switchNode->setValue( 0, !switchNode->getValue(0) );
16             switchNode->setValue( 1, !switchNode->getValue(1) );
17         }
18         traverse( node, nv );
19     }
20 
21 protected:
22     unsigned int _count;
23 };
24 
25 int main( int argc, char** argv )
26 {
27     osg::ref_ptr<osg::Node> model1 = osgDB::readNodeFile( "D:\\Gitee\\data\\cow.osg" );
28     osg::ref_ptr<osg::Node> model2 = osgDB::readNodeFile( "D:\\Gitee\\data\\nathan.osg" );
29 
30     osg::ref_ptr<osg::Switch> root = new osg::Switch;
31     root->addChild( model1.get(), false );
32     root->addChild( model2.get(), true );
33     root->setUpdateCallback( new SwitchingCallback );
34 
35     osgViewer::Viewer viewer;
36     viewer.setSceneData( root.get() );
37     viewer.setUpViewInWindow(50,50,500,400);
38     return viewer.run();
39 }

View Code

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原文地址：https://www.cnblogs.com/FKdelphi/p/16591871.html