OsgOsg实例牛对象缩放效果(Qt5.14.2+osgEarht3.6.5+win10)No8zoom

相关资料：

https://www.cnblogs.com/ylwn817/articles/1973396.html osg矩阵变换节点-----平移旋转缩放

代码实例：

.pro

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

View Code

main.cpp

 1 #include <QApplication>
 2 
 3 #include <osg/Node>
 4 #include <osg/Group>
 5 #include <osg/Geode>
 6 #include <osg/Geometry>
 7 #include <osg/Texture2D>
 8 #include <osg/StateSet>
 9 #include <osg/PositionAttitudeTransform>
10 #include <osgViewer/Viewer>
11 #include <osgDB/ReadFile>
12 #include <osgParticle/PrecipitationEffect>
13 // 雨雪效果
14 #include <osg/MatrixTransform>
15 // 粒子效果
16 #include <osgParticle/PrecipitationEffect>
17 #include <osgParticle/Particle>
18 #include <osgParticle/LinearInterpolator>
19 #include <osgParticle/ParticleSystem>
20 #include <osgParticle/RandomRateCounter>
21 #include <osgParticle/PointPlacer>
22 #include <osgParticle/RadialShooter>
23 #include <osgParticle/ModularEmitter>
24 #include <osgParticle/ParticleSystemUpdater>
25 #include <osgParticle/ModularProgram>
26 #include <osgUtil/Optimizer>
27 #include <osgUtil/Simplifier>
28 #include <osgParticle/FireEffect>
29 // 雾
30 #include <osg/Fog>
31 #include <osgDB/ReadFile>
32 #include <osgViewer/Viewer>
33 #include <osg/StateSet>
34 #include <osg/StateAttribute>
35 #include <osgViewer/ViewerEventHandlers>
36 #include <osgWidget/ViewerEventHandlers>
37 
38 int main(int argc, char *argv[])
39 {
40     osgViewer::Viewer viewer;
41     osg::ref_ptr<osg::Group> root=new osg::Group();
42 
43     osg::ref_ptr<osg::Node> osgcool=osgDB::readNodeFile("D:\\osgFiles\\cow.osg");
44 
45     osg::ref_ptr<osg::MatrixTransform> trans=new osg::MatrixTransform();
46     // osg::Matrix::scale(0.5,0.5,0.5)表示缩放的比例，也就是原来物体的一般大小
47     // *osg::Matrix::translate(0,-10,0)表示平移正前
48     trans->setMatrix(osg::Matrix::scale(0.5,0.5,0.5)*osg::Matrix::translate(0,-10,0));
49     trans->addChild(osgcool.get());
50 
51     root->addChild(osgcool.get());
52     root->addChild(trans.get());
53 
54     viewer.setUpViewInWindow(50,50,500,400);
55     viewer.setSceneData(root.get());
56     viewer.realize();
57     viewer.run();
58 }

View Code

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原文地址：https://www.cnblogs.com/FKdelphi/p/15879555.html