新人求助OSG选择点或线的高亮问题

313413

#include<osgViewer\Viewer>
#include<osgDB\ReadFile>
#include <osg/Group>
#include <osg/Geode>
#include <osg/ShapeDrawable>
#include <osg/Texture2D>
#include <osg/PositionAttitudeTransform>
#include <osg/TexEnv>
#include <osg/Image>
#include <osg/StateSet>
#include <osgGA/GUIEventAdapter>
#include <osgGA/GUIEventAdapter>
#include <osgUtil/LineSegmentIntersector>
#include <osgViewer/ViewerEventHandlers>
#include <osg/Material>
#include <osg/LineWidth>
#include <iostream>
#include<osgManipulator/TrackballDragger>
#include<osgManipulator/TranslateAxisDragger>
#include<osgManipulator/ScaleAxisDragger>
#include<osg/MatrixTransform>
#include <osg/TexGen>
#include <osg/TexEnv>
#include<osg/Light>
#include<osg/LightSource>
#include <osg/Geode>
#include <osg/Geometry>
#include <osg/Material>
#include <osg/Vec3>
#include <osg/MatrixTransform>
#include <osg/Texture2D>
#include <osg/PolygonStipple>
#include <osg/TriangleFunctor>
#include <osg/io_utils>
#include<osg/Point>
#include <osgDB/ReadFile>
#include <osgDB/WriteFile>
#include <osgGA/TrackballManipulator>
#include <osgViewer/Viewer>
#include <osg/Math>
#include<osgFX/Scribe>
#include <iostream>
#include <string.h>
#pragma comment(lib,"osgUtild.lib")
#pragma comment(lib,"OpenThreads.lib")
#pragma comment(lib,"osgDB.lib")
#pragma comment(lib,"osgManipulator.lib")
#pragma comment(lib,"osg.lib")
#pragma comment(lib,"osgViewer.lib")
#pragma comment(lib,"osgGA.lib")
#pragma comment(lib,"osgFX.lib")
class CPickHandler:public osgGA::GUIEventHandler
{
public:
    CPickHandler(osgViewer::Viewer*viewer):mViewer(viewer),lastSelect(0){}
    virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa)
    {
        switch(ea.getEventType())
        {
        case(osgGA::GUIEventAdapter::MOVE):
        {
            if(ea.getButton()==1)
            {
                Pick(ea.getX(),ea.getY());
            }
            return true;
        }
        return false;
        }
    }
protected:void Pick(float x,float y)
    {
        osgUtil:ineSegmentIntersector::Intersections intersections;
        if(mViewer->computeIntersections(x,y,intersections))
        {
            for(osgUtil::LineSegmentIntersector::Intersections::iterator hitr=intersections.begin();
                hitr!=intersections.end();++hitr)
            {
                if(!hitr->nodePath.empty()&&!(hitr->nodePath.back()->getName().empty()))
                {
                    const osg::NodePath& np=hitr->nodePath;
                    for(int i=np.size()-1;i>=0;--i)
                    {
                        osg::Geometry *sc=dynamic_cast<osg::Geometry *>(np[i]);
                        if(sc!=NULL)
                        {
                            if(sc->getName()=="linesGeom"||sc->getName()=="pointsGeom"||sc->getName()=="pointsGeom3"||
                                    sc->getName()=="pointsGeom4"||sc->getName()=="pointsGeom5")
                            {
                            osg::Vec4Array* colors6 = new osg::Vec4Array;  //变颜色
                            colors6->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
                            sc->setColorArray(colors6);
                            sc->setColorBinding(osg::Geometry::BIND_OVERALL);
                            osg::Vec3Array* normals6 = new osg::Vec3Array;
                            normals6->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
                            sc->setNormalArray(normals6);
                            }
                        }

                    }

                }

            }
        }
    }
    osgViewer::Viewer*mViewer;
    osg::Node*lastSelect;
};

int main()
{
    osg::ref_ptr<osg::Group> root = new osg::Group;
    osgViewer::Viewer myViewer;
    osg::Geode* geode = new osg::Geode;
     osg::Geode* geode2 = new osg::Geode;//两点
     osg::ref_ptr<osg::Node> node=new osg::Node;
    osg::Geometry* linesGeom = new osg::Geometry();//骨架直线
    osg::Vec3Array* vertices = new osg::Vec3Array(10);
    (*vertices)[0].set(20,20,40);
    (*vertices)[1].set(20,20,0);
    (*vertices)[2].set(20,20,20);
    (*vertices)[3].set(5,20,20);
    (*vertices)[4].set(20,20,20);
    (*vertices)[5].set(20,5,20);
    (*vertices)[6].set(27.5,27.5,0);
    (*vertices)[7].set(12.5,27.5,0);
    (*vertices)[8].set(27.5,27.5,0);
    (*vertices)[9].set(27.5,12.5,0);
    linesGeom->setVertexArray(vertices);

    osg::Vec4Array* colors = new osg::Vec4Array;
    colors->push_back(osg::Vec4(1.0f,1.0f,0.0f,1.0f));
    linesGeom->setColorArray(colors);
    linesGeom->setColorBinding(osg::Geometry::BIND_OVERALL);
    linesGeom->setName("linesGeom");
    osg::Vec3Array* normals = new osg::Vec3Array;
    normals->push_back(osg::Vec3(0.0f,-1.0f,0.0f));

    linesGeom->setNormalArray(normals);
    linesGeom->setNormalBinding(osg::Geometry::BIND_OVERALL);
    linesGeom->addPrimitiveSet(new osg:rawArrays(osg:rimitiveSet::LINES,0,vertices->size()));

    //曲线1
    osg::Geometry* pointsGeom = new osg::Geometry();
    osg::Vec3Array* vertices2 = new osg::Vec3Array;
    #define PI 3.14159f
    #define RADIUS 15.0f
    GLfloat x = 0, y = 0, angle = 0.0;
    for ( angle = -PI; angle <= -0.5f * PI; angle += 0.001f )
    {
        x = RADIUS * sin( angle )+27.5;
        y = RADIUS * cos( angle )+27.5;
        vertices2->push_back(osg::Vec3(x,y,0));
    }
    pointsGeom->setVertexArray(vertices2);

    osg::Vec4Array* colors2 = new osg::Vec4Array;
    colors2->push_back(osg::Vec4(0.0f,1.0f,1.0f,1.0f));
    pointsGeom->setColorArray(colors2);
    pointsGeom->setColorBinding(osg::Geometry::BIND_OVERALL);
    osg::Vec3Array* normals2 = new osg::Vec3Array;
    normals2->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
    pointsGeom->setNormalArray(normals2);

    pointsGeom->setNormalBinding(osg::Geometry::BIND_OVERALL);
    pointsGeom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::POINTS,0,vertices2->size()));
    pointsGeom->setName("pointsGeom");
    //曲线2
    osg::Geometry* pointsGeom3 = new osg::Geometry();
    osg::Vec3Array* vertices3 = new osg::Vec3Array;
    GLfloat y3 = 0, z3 = 0, angle3 = 0.0;
    for ( angle3 = -0.5f * PI; angle3 <= 0; angle3 += 0.001f )
    {
        y3 = RADIUS * sin( angle3 )+20;
        z3 = RADIUS * cos( angle3 )+20;
        vertices3->push_back(osg::Vec3(20,y3,z3));
    }
    pointsGeom3->setVertexArray(vertices3);

    osg::Vec4Array* colors3 = new osg::Vec4Array;
    colors3->push_back(osg::Vec4(0.0f,1.0f,0.0f,1.0f));
    pointsGeom3->setColorArray(colors3);
    pointsGeom3->setColorBinding(osg::Geometry::BIND_OVERALL);
    osg::Vec3Array* normals3 = new osg::Vec3Array;
    normals3->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
    pointsGeom3->setNormalArray(normals3);

    pointsGeom3->setNormalBinding(osg::Geometry::BIND_OVERALL);
    pointsGeom3->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::POINTS,0,vertices3->size()));
    pointsGeom3->setName("pointsGeom3");
    //曲线3
    osg::Geometry* pointsGeom4 = new osg::Geometry();
    osg::Vec3Array* vertices4 = new osg::Vec3Array;
    GLfloat x4 = 0, z4 = 0, angle4 = 0.0;
    for ( angle4 = -0.5f * PI; angle4 <= 0; angle4 += 0.001f )
    {
        x4 = RADIUS * sin( angle4 )+20;
        z4 = RADIUS * cos( angle4 )+20;
        vertices4->push_back(osg::Vec3(x4,20,z4));
    }
    pointsGeom4->setVertexArray(vertices4);

    osg::Vec4Array* colors4 = new osg::Vec4Array;
    colors4->push_back(osg::Vec4(1.0f,0.0f,1.0f,1.0f));
    pointsGeom4->setColorArray(colors4);
    pointsGeom4->setColorBinding(osg::Geometry::BIND_OVERALL);
    osg::Vec3Array* normals4 = new osg::Vec3Array;
    normals4->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
    pointsGeom4->setNormalArray(normals4);

    pointsGeom4->setNormalBinding(osg::Geometry::BIND_OVERALL);
    pointsGeom4->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::POINTS,0,vertices4->size()));
    pointsGeom4->setName("pointsGeom4");
    //两点
    osg::Geometry* pointsGeom5 = new osg::Geometry();
    osg::Vec3Array* vertices5 = new osg::Vec3Array;
    vertices5->push_back(osg::Vec3(20,20,40));
    vertices5->push_back(osg::Vec3(20,20,0));
    pointsGeom5->setVertexArray(vertices5);
    osg::Vec4Array* colors5 = new osg::Vec4Array;
    colors5->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
    pointsGeom5->setColorArray(colors5);
    pointsGeom5->setColorBinding(osg::Geometry::BIND_OVERALL);
    osg::Vec3Array* normals5 = new osg::Vec3Array;
    normals5->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
    pointsGeom5->setNormalArray(normals5);

    pointsGeom5->setNormalBinding(osg::Geometry::BIND_OVERALL);
    pointsGeom5->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::POINTS,0,vertices5->size()));
    pointsGeom5->setName("pointsGeom5");

    osg::ref_ptr <osg::Point> ptSize = new osg::Point;
    ptSize->setSize( 9.0) ;
    geode2->getOrCreateStateSet()->setAttributeAndModes( ptSize.get (),osg::StateAttribute::ON);

    osg::ref_ptr<osg::MatrixTransform> selection=new osg::MatrixTransform;

    //tad
    osgManipulator::TranslateAxisDragger * tad=new osgManipulator::TranslateAxisDragger();
    float scale=20.0;
    tad->setupDefaultGeometry();
    tad->setMatrix(osg::Matrix::scale(scale,scale,scale)*osg::Matrix::translate(osg::Vec3(-20,-20,-20)));
    tad->addTransformUpdating(selection);
    tad->setHandleEvents(true);
    tad->setActivationModKeyMask(osgGA::GUIEventAdapter::MODKEY_CTRL);


    geode->addDrawable(pointsGeom);
    geode->addDrawable(pointsGeom3);
    geode->addDrawable(pointsGeom4);
    geode2->addDrawable(pointsGeom5);
    geode->addDrawable(linesGeom);
    root->addChild(geode);
    root->addChild(geode2);
    root->addChild(tad);
    myViewer.setSceneData(root.get());
   myViewer.addEventHandler(new CPickHandler(&myViewer));
    myViewer.realize();
    myViewer.run();
}


代码在上面，想要实现鼠标移动过右侧的模型的点或者线让点或者线变颜色。但是进去能显示正常模型，但是就动不了了。哪里出了问题那？求大神指导，最好能帮助修改一下。

313413

1. #include<osgViewer\Viewer>
   
2. #include<osgDB\ReadFile>
   
3. #include <osg/Group>
   
4. #include <osg/Geode>
   
5. #include <osg/ShapeDrawable>
   
6. #include <osg/Texture2D>
   
7. #include <osg/PositionAttitudeTransform>
   
8. #include <osg/TexEnv>
   
9. #include <osg/Image>
   
10. #include <osg/StateSet>
    
11. #include <osgGA/GUIEventAdapter>
    
12. #include <osgGA/GUIEventAdapter>
    
13. #include <osgUtil/LineSegmentIntersector>
    
14. #include <osgViewer/ViewerEventHandlers>
    
15. #include <osg/Material>
    
16. #include <osg/LineWidth>
    
17. #include <iostream>
    
18. #include<osgManipulator/TrackballDragger>
    
19. #include<osgManipulator/TranslateAxisDragger>
    
20. #include<osgManipulator/ScaleAxisDragger>
    
21. #include<osg/MatrixTransform>
    
22. #include <osg/TexGen>
    
23. #include <osg/TexEnv>
    
24. #include<osg/Light>
    
25. #include<osg/LightSource>
    
26. #include <osg/Geode>
    
27. #include <osg/Geometry>
    
28. #include <osg/Material>
    
29. #include <osg/Vec3>
    
30. #include <osg/MatrixTransform>
    
31. #include <osg/Texture2D>
    
32. #include <osg/PolygonStipple>
    
33. #include <osg/TriangleFunctor>
    
34. #include <osg/io_utils>
    
35. #include<osg/Point>
    
36. #include <osgDB/ReadFile>
    
37. #include <osgDB/WriteFile>
    
38. #include <osgGA/TrackballManipulator>
    
39. #include <osgViewer/Viewer>
    
40. #include <osg/Math>
    
41. #include<osgFX/Scribe>
    
42. #include <iostream>
    
43. #include <string.h>
    
44. #pragma comment(lib,"osgUtild.lib")
    
45. #pragma comment(lib,"OpenThreads.lib")
    
46. #pragma comment(lib,"osgDB.lib")
    
47. #pragma comment(lib,"osgManipulator.lib")
    
48. #pragma comment(lib,"osg.lib")
    
49. #pragma comment(lib,"osgViewer.lib")
    
50. #pragma comment(lib,"osgGA.lib")
    
51. #pragma comment(lib,"osgFX.lib")
    
52. class CPickHandler:public osgGA::GUIEventHandler
    
53. {
    
54. public:
    
55.     CPickHandler(osgViewer::Viewer*viewer):mViewer(viewer),lastSelect(0){}
    
56.     virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa)
    
57.     {
    
58.         switch(ea.getEventType())
    
59.         {
    
60.         case(osgGA::GUIEventAdapter::MOVE):
    
61.         {
    
62.             if(ea.getButton()==1)
    
63.             {
    
64.                 Pick(ea.getX(),ea.getY());
    
65.             }
    
66.             return true;
    
67. 
    
68.         }
    
69.         return false;
    
70.         }
    
71.     }
    
72. protected:void Pick(float x,float y)
    
73.     {
    
74.         osgUtil::LineSegmentIntersector::Intersections intersections;
    
75.         if(mViewer->computeIntersections(x,y,intersections))
    
76.         {
    
77.             for(osgUtil::LineSegmentIntersector::Intersections::iterator hitr=intersections.begin();
    
78.                 hitr!=intersections.end();++hitr)
    
79.             {
    
80.                 if(!hitr->nodePath.empty()&&!(hitr->nodePath.back()->getName().empty()))
    
81.                 {
    
82.                     const osg::NodePath& np=hitr->nodePath;
    
83.                     for(int i=np.size()-1;i>=0;--i)
    
84.                     {
    
85.                         osg::Geometry *sc=dynamic_cast<osg::Geometry *>(np[i]);
    
86.                         if(sc!=NULL)
    
87.                         {
    
88.                             if(sc->getName()=="linesGeom"||sc->getName()=="pointsGeom"||sc->getName()=="pointsGeom3"||
    
89.                                     sc->getName()=="pointsGeom4"||sc->getName()=="pointsGeom5")
    
90.                             {
    
91.                             osg::Vec4Array* colors6 = new osg::Vec4Array;  //变颜色
    
92.                             colors6->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
    
93.                             sc->setColorArray(colors6);
    
94.                             sc->setColorBinding(osg::Geometry::BIND_OVERALL);
    
95.                             osg::Vec3Array* normals6 = new osg::Vec3Array;
    
96.                             normals6->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
    
97.                             sc->setNormalArray(normals6);
    
98.                             }
    
99.                         }
    
100. 
     
101.                     }
     
102.                 }
     
103. 
     
104.             }
     
105.         }
     
106.     }
     
107.     osgViewer::Viewer*mViewer;
     
108.     osg::Node*lastSelect;
     
109. };
     
110. 
     
111. int main()
     
112. {
     
113.     osg::ref_ptr<osg::Group> root = new osg::Group;
     
114.     osgViewer::Viewer myViewer;
     
115.     osg::Geode* geode = new osg::Geode;
     
116.      osg::Geode* geode2 = new osg::Geode;//两点
     
117.      osg::ref_ptr<osg::Node> node=new osg::Node;
     
118.     osg::Geometry* linesGeom = new osg::Geometry();//骨架直线
     
119.     osg::Vec3Array* vertices = new osg::Vec3Array(10);
     
120.     (*vertices)[0].set(20,20,40);
     
121.     (*vertices)[1].set(20,20,0);
     
122.     (*vertices)[2].set(20,20,20);
     
123.     (*vertices)[3].set(5,20,20);
     
124.     (*vertices)[4].set(20,20,20);
     
125.     (*vertices)[5].set(20,5,20);
     
126.     (*vertices)[6].set(27.5,27.5,0);
     
127.     (*vertices)[7].set(12.5,27.5,0);
     
128.     (*vertices)[8].set(27.5,27.5,0);
     
129.     (*vertices)[9].set(27.5,12.5,0);
     
130.     linesGeom->setVertexArray(vertices);
     
131. 
     
132.     osg::Vec4Array* colors = new osg::Vec4Array;
     
133.     colors->push_back(osg::Vec4(1.0f,1.0f,0.0f,1.0f));
     
134.     linesGeom->setColorArray(colors);
     
135.     linesGeom->setColorBinding(osg::Geometry::BIND_OVERALL);
     
136.     linesGeom->setName("linesGeom");
     
137.     osg::Vec3Array* normals = new osg::Vec3Array;
     
138.     normals->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
     
139. 
     
140.     linesGeom->setNormalArray(normals);
     
141.     linesGeom->setNormalBinding(osg::Geometry::BIND_OVERALL);
     
142.     linesGeom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::LINES,0,vertices->size()));
     
143. 
     
144.     //曲线1
     
145.     osg::Geometry* pointsGeom = new osg::Geometry();
     
146.     osg::Vec3Array* vertices2 = new osg::Vec3Array;
     
147.     #define PI 3.14159f
     
148.     #define RADIUS 15.0f
     
149.     GLfloat x = 0, y = 0, angle = 0.0;
     
150.     for ( angle = -PI; angle <= -0.5f * PI; angle += 0.001f )
     
151.     {
     
152.         x = RADIUS * sin( angle )+27.5;
     
153.         y = RADIUS * cos( angle )+27.5;
     
154.         vertices2->push_back(osg::Vec3(x,y,0));
     
155.     }
     
156.     pointsGeom->setVertexArray(vertices2);
     
157. 
     
158.     osg::Vec4Array* colors2 = new osg::Vec4Array;
     
159.     colors2->push_back(osg::Vec4(0.0f,1.0f,1.0f,1.0f));
     
160.     pointsGeom->setColorArray(colors2);
     
161.     pointsGeom->setColorBinding(osg::Geometry::BIND_OVERALL);
     
162.     osg::Vec3Array* normals2 = new osg::Vec3Array;
     
163.     normals2->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
     
164.     pointsGeom->setNormalArray(normals2);
     
165. 
     
166.     pointsGeom->setNormalBinding(osg::Geometry::BIND_OVERALL);
     
167.     pointsGeom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::POINTS,0,vertices2->size()));
     
168.     pointsGeom->setName("pointsGeom");
     
169.     //曲线2
     
170.     osg::Geometry* pointsGeom3 = new osg::Geometry();
     
171.     osg::Vec3Array* vertices3 = new osg::Vec3Array;
     
172.     GLfloat y3 = 0, z3 = 0, angle3 = 0.0;
     
173.     for ( angle3 = -0.5f * PI; angle3 <= 0; angle3 += 0.001f )
     
174.     {
     
175.         y3 = RADIUS * sin( angle3 )+20;
     
176.         z3 = RADIUS * cos( angle3 )+20;
     
177.         vertices3->push_back(osg::Vec3(20,y3,z3));
     
178.     }
     
179.     pointsGeom3->setVertexArray(vertices3);
     
180. 
     
181.     osg::Vec4Array* colors3 = new osg::Vec4Array;
     
182.     colors3->push_back(osg::Vec4(0.0f,1.0f,0.0f,1.0f));
     
183.     pointsGeom3->setColorArray(colors3);
     
184.     pointsGeom3->setColorBinding(osg::Geometry::BIND_OVERALL);
     
185.     osg::Vec3Array* normals3 = new osg::Vec3Array;
     
186.     normals3->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
     
187.     pointsGeom3->setNormalArray(normals3);
     
188. 
     
189.     pointsGeom3->setNormalBinding(osg::Geometry::BIND_OVERALL);
     
190.     pointsGeom3->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::POINTS,0,vertices3->size()));
     
191.     pointsGeom3->setName("pointsGeom3");
     
192.     //曲线3
     
193.     osg::Geometry* pointsGeom4 = new osg::Geometry();
     
194.     osg::Vec3Array* vertices4 = new osg::Vec3Array;
     
195.     GLfloat x4 = 0, z4 = 0, angle4 = 0.0;
     
196.     for ( angle4 = -0.5f * PI; angle4 <= 0; angle4 += 0.001f )
     
197.     {
     
198.         x4 = RADIUS * sin( angle4 )+20;
     
199.         z4 = RADIUS * cos( angle4 )+20;
     
200.         vertices4->push_back(osg::Vec3(x4,20,z4));
     
201.     }
     
202.     pointsGeom4->setVertexArray(vertices4);
     
203. 
     
204.     osg::Vec4Array* colors4 = new osg::Vec4Array;
     
205.     colors4->push_back(osg::Vec4(1.0f,0.0f,1.0f,1.0f));
     
206.     pointsGeom4->setColorArray(colors4);
     
207.     pointsGeom4->setColorBinding(osg::Geometry::BIND_OVERALL);
     
208.     osg::Vec3Array* normals4 = new osg::Vec3Array;
     
209.     normals4->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
     
210.     pointsGeom4->setNormalArray(normals4);
     
211. 
     
212.     pointsGeom4->setNormalBinding(osg::Geometry::BIND_OVERALL);
     
213.     pointsGeom4->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::POINTS,0,vertices4->size()));
     
214.     pointsGeom4->setName("pointsGeom4");
     
215.     //两点
     
216.     osg::Geometry* pointsGeom5 = new osg::Geometry();
     
217.     osg::Vec3Array* vertices5 = new osg::Vec3Array;
     
218.     vertices5->push_back(osg::Vec3(20,20,40));
     
219.     vertices5->push_back(osg::Vec3(20,20,0));
     
220.     pointsGeom5->setVertexArray(vertices5);
     
221.     osg::Vec4Array* colors5 = new osg::Vec4Array;
     
222.     colors5->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
     
223.     pointsGeom5->setColorArray(colors5);
     
224.     pointsGeom5->setColorBinding(osg::Geometry::BIND_OVERALL);
     
225.     osg::Vec3Array* normals5 = new osg::Vec3Array;
     
226.     normals5->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
     
227.     pointsGeom5->setNormalArray(normals5);
     
228. 
     
229.     pointsGeom5->setNormalBinding(osg::Geometry::BIND_OVERALL);
     
230.     pointsGeom5->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::POINTS,0,vertices5->size()));
     
231.     pointsGeom5->setName("pointsGeom5");
     
232. 
     
233.     osg::ref_ptr <osg::Point> ptSize = new osg::Point;
     
234.     ptSize->setSize( 9.0) ;
     
235.     geode2->getOrCreateStateSet()->setAttributeAndModes( ptSize.get (),osg::StateAttribute::ON);
     
236. 
     
237.     osg::ref_ptr<osg::MatrixTransform> selection=new osg::MatrixTransform;
     
238. 
     
239.     //tad
     
240.     osgManipulator::TranslateAxisDragger * tad=new osgManipulator::TranslateAxisDragger();
     
241.     float scale=20.0;
     
242.     tad->setupDefaultGeometry();
     
243.     tad->setMatrix(osg::Matrix::scale(scale,scale,scale)*osg::Matrix::translate(osg::Vec3(-20,-20,-20)));
     
244.     tad->addTransformUpdating(selection);
     
245.     tad->setHandleEvents(true);
     
246.     tad->setActivationModKeyMask(osgGA::GUIEventAdapter::MODKEY_CTRL);
     
247. 
     
248. 
     
249.     geode->addDrawable(pointsGeom);
     
250.     geode->addDrawable(pointsGeom3);
     
251.     geode->addDrawable(pointsGeom4);
     
252.     geode2->addDrawable(pointsGeom5);
     
253.     geode->addDrawable(linesGeom);
     
254.     root->addChild(geode);
     
255.     root->addChild(geode2);
     
256.     root->addChild(tad);
     
257.     myViewer.setSceneData(root.get());
     
258.    myViewer.addEventHandler(new CPickHandler(&myViewer));
     
259.     myViewer.realize();
     
260.     myViewer.run();
     
261. }
     

复制代码

313413

没用代码模式粘贴。。。在2楼。

313413

括号问题，能动了，但是还是实现不了功能，最新代码。

1. #include<osgViewer\Viewer>
   
2. #include<osgDB\ReadFile>
   
3. #include <osg/Group>
   
4. #include <osg/Geode>
   
5. #include <osg/ShapeDrawable>
   
6. #include <osg/Texture2D>
   
7. #include <osg/PositionAttitudeTransform>
   
8. #include <osg/TexEnv>
   
9. #include <osg/Image>
   
10. #include <osg/StateSet>
    
11. #include <osgGA/GUIEventAdapter>
    
12. #include <osgGA/GUIEventAdapter>
    
13. #include <osgUtil/LineSegmentIntersector>
    
14. #include <osgViewer/ViewerEventHandlers>
    
15. #include <osg/Material>
    
16. #include <osg/LineWidth>
    
17. #include <iostream>
    
18. #include<osgManipulator/TrackballDragger>
    
19. #include<osgManipulator/TranslateAxisDragger>
    
20. #include<osgManipulator/ScaleAxisDragger>
    
21. #include<osg/MatrixTransform>
    
22. #include <osg/TexGen>
    
23. #include <osg/TexEnv>
    
24. #include<osg/Light>
    
25. #include<osg/LightSource>
    
26. #include <osg/Geode>
    
27. #include <osg/Geometry>
    
28. #include <osg/Material>
    
29. #include <osg/Vec3>
    
30. #include <osg/MatrixTransform>
    
31. #include <osg/Texture2D>
    
32. #include <osg/PolygonStipple>
    
33. #include <osg/TriangleFunctor>
    
34. #include <osg/io_utils>
    
35. #include<osg/Point>
    
36. #include <osgDB/ReadFile>
    
37. #include <osgDB/WriteFile>
    
38. #include <osgGA/TrackballManipulator>
    
39. #include <osgViewer/Viewer>
    
40. #include <osg/Math>
    
41. #include<osgFX/Scribe>
    
42. #include <iostream>
    
43. #include <string.h>
    
44. #pragma comment(lib,"osgUtild.lib")
    
45. #pragma comment(lib,"OpenThreads.lib")
    
46. #pragma comment(lib,"osgDB.lib")
    
47. #pragma comment(lib,"osgManipulator.lib")
    
48. #pragma comment(lib,"osg.lib")
    
49. #pragma comment(lib,"osgViewer.lib")
    
50. #pragma comment(lib,"osgGA.lib")
    
51. #pragma comment(lib,"osgFX.lib")
    
52. class CPickHandler:public osgGA::GUIEventHandler
    
53. {
    
54. public:
    
55.     CPickHandler(osgViewer::Viewer*viewer):mViewer(viewer),lastSelect(0){}
    
56.     virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa)
    
57.     {
    
58.         switch(ea.getEventType())
    
59.         {
    
60.         case(osgGA::GUIEventAdapter::MOVE):
    
61.             if(ea.getButton()==1)
    
62.             {
    
63.                 Pick(ea.getX(),ea.getY());
    
64.             }
    
65.             return true;
    
66.         }
    
67. //            if(lastSelect)
    
68. //            {
    
69. //                osg::StateSet* state=lastSelect->getOrCreateStateSet();//?
    
70. //                state->setMode(GL_BLEND,osg::StateAttribute::ON);
    
71. //                osg::Material*mtrl=dynamic_cast<osg::Material*>(state->getAttribute(osg::StateAttribute::MATERIAL));
    
72. //                mtrl->setDiffuse(osg::Material::FRONT_AND_BACK,osg::Vec4(1.0,1.0,1.0,1.0));
    
73. //                mtrl->setAmbient(osg::Material::FRONT_AND_BACK,osg::Vec4(1.0,1.0,1.0,1.0));
    
74. //                mtrl->setTransparency(osg::Material::FRONT_AND_BACK,0.0);
    
75. //                state->setAttributeAndModes(mtrl,osg::StateAttribute::OVERRIDE|osg::StateAttribute::ON);
    
76. //                state->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
    
77. //                lastSelect=0;
    
78. //            }
    
79. //            Pick(ea.getX(),ea.getY());
    
80. //        }
    
81. //            return true;
    
82.         return false;
    
83. 
    
84.     }
    
85. protected:void Pick(float x,float y)
    
86.     {
    
87.         osgUtil::LineSegmentIntersector::Intersections intersections;
    
88.         if(mViewer->computeIntersections(x,y,intersections))
    
89.         {
    
90.             for(osgUtil::LineSegmentIntersector::Intersections::iterator hitr=intersections.begin();
    
91.                 hitr!=intersections.end();++hitr)
    
92.             {
    
93.                 if(!hitr->nodePath.empty()&&!(hitr->nodePath.back()->getName().empty()))
    
94.                 {
    
95.                     const osg::NodePath& np=hitr->nodePath;
    
96.                     for(int i=np.size()-1;i>=0;--i)
    
97.                     {
    
98.                         osg::Geometry *sc=dynamic_cast<osg::Geometry *>(np[i]);
    
99.                         if(sc!=NULL)
    
100.                         {
     
101.                             if(sc->getName()=="linesGeom"||sc->getName()=="pointsGeom"||sc->getName()=="pointsGeom3"||
     
102.                                     sc->getName()=="pointsGeom4"||sc->getName()=="pointsGeom5")
     
103.                             {
     
104. 
     
105.                             osg::Vec4Array* colors6 = new osg::Vec4Array;  //变颜色
     
106.                             colors6->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
     
107.                             sc->setColorArray(colors6);
     
108.                             sc->setColorBinding(osg::Geometry::BIND_OVERALL);
     
109.                             osg::Vec3Array* normals6 = new osg::Vec3Array;
     
110.                             normals6->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
     
111.                             sc->setNormalArray(normals6);
     
112.                             }
     
113.                         }
     
114. 
     
115.                     }
     
116. //                    {
     
117. //                        osg::Node*nd=dynamic_cast<osg::Node *>(np[i]);
     
118. //                        if(nd)
     
119. //                        {
     
120. //                            if(nd->getName()=="root")
     
121. //                            {
     
122. //                                osg::StateSet*state=nd->getOrCreateStateSet();
     
123. //                                state->setMode(GL_BLEND,osg::StateAttribute::ON);
     
124. //                                osg::Material*mtrl=dynamic_cast<osg::Material*>(state->getAttribute(osg::StateAttribute::MATERIAL));
     
125. //                                if(!mtrl)
     
126. //                                {
     
127. //                                    mtrl=new osg::Material;
     
128. //                                }
     
129. //                                mtrl->setDiffuse(osg::Material::FRONT_AND_BACK,osg::Vec4(1.0,0.0,0.0,0.8));
     
130. //                                mtrl->setAmbient(osg::Material::FRONT_AND_BACK,osg::Vec4(1.0,0.0,0.0,0.8));
     
131. //                                mtrl->setTransparency(osg::Material::FRONT_AND_BACK,0.2);
     
132. //                                state->setAttributeAndModes(mtrl,osg::StateAttribute::OVERRIDE|osg::StateAttribute::ON);
     
133. //                                state->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
     
134. //                                lastSelect=nd;
     
135. 
     
136. //                            }
     
137. //                            return;
     
138. //                        }
     
139. //                    }
     
140.                 }
     
141. 
     
142.             }
     
143.         }
     
144.     }
     
145.     osgViewer::Viewer*mViewer;
     
146.     osg::Node*lastSelect;
     
147. };
     
148. 
     
149. int main()
     
150. {
     
151.     osg::ref_ptr<osg::Group> root = new osg::Group;
     
152.     osgViewer::Viewer myViewer;
     
153.     osg::Geode* geode = new osg::Geode;
     
154.      osg::Geode* geode2 = new osg::Geode;//两点
     
155.      osg::ref_ptr<osg::Node> node=new osg::Node;
     
156.     osg::Geometry* linesGeom = new osg::Geometry();//骨架直线
     
157.     osg::Vec3Array* vertices = new osg::Vec3Array(10);
     
158.     (*vertices)[0].set(20,20,40);
     
159.     (*vertices)[1].set(20,20,0);
     
160.     (*vertices)[2].set(20,20,20);
     
161.     (*vertices)[3].set(5,20,20);
     
162.     (*vertices)[4].set(20,20,20);
     
163.     (*vertices)[5].set(20,5,20);
     
164.     (*vertices)[6].set(27.5,27.5,0);
     
165.     (*vertices)[7].set(12.5,27.5,0);
     
166.     (*vertices)[8].set(27.5,27.5,0);
     
167.     (*vertices)[9].set(27.5,12.5,0);
     
168.     linesGeom->setVertexArray(vertices);
     
169. 
     
170.     osg::Vec4Array* colors = new osg::Vec4Array;
     
171.     colors->push_back(osg::Vec4(1.0f,1.0f,0.0f,1.0f));
     
172.     linesGeom->setColorArray(colors);
     
173.     linesGeom->setColorBinding(osg::Geometry::BIND_OVERALL);
     
174.     linesGeom->setName("linesGeom");
     
175.     osg::Vec3Array* normals = new osg::Vec3Array;
     
176.     normals->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
     
177. 
     
178.     linesGeom->setNormalArray(normals);
     
179.     linesGeom->setNormalBinding(osg::Geometry::BIND_OVERALL);
     
180.     linesGeom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::LINES,0,vertices->size()));
     
181. 
     
182.     //曲线1
     
183.     osg::Geometry* pointsGeom = new osg::Geometry();
     
184.     osg::Vec3Array* vertices2 = new osg::Vec3Array;
     
185.     #define PI 3.14159f
     
186.     #define RADIUS 15.0f
     
187.     GLfloat x = 0, y = 0, angle = 0.0;
     
188.     for ( angle = -PI; angle <= -0.5f * PI; angle += 0.001f )
     
189.     {
     
190.         x = RADIUS * sin( angle )+27.5;
     
191.         y = RADIUS * cos( angle )+27.5;
     
192.         vertices2->push_back(osg::Vec3(x,y,0));
     
193.     }
     
194.     pointsGeom->setVertexArray(vertices2);
     
195. 
     
196.     osg::Vec4Array* colors2 = new osg::Vec4Array;
     
197.     colors2->push_back(osg::Vec4(0.0f,1.0f,1.0f,1.0f));
     
198.     pointsGeom->setColorArray(colors2);
     
199.     pointsGeom->setColorBinding(osg::Geometry::BIND_OVERALL);
     
200.     osg::Vec3Array* normals2 = new osg::Vec3Array;
     
201.     normals2->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
     
202.     pointsGeom->setNormalArray(normals2);
     
203. 
     
204.     pointsGeom->setNormalBinding(osg::Geometry::BIND_OVERALL);
     
205.     pointsGeom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::POINTS,0,vertices2->size()));
     
206.     pointsGeom->setName("pointsGeom");
     
207.     //曲线2
     
208.     osg::Geometry* pointsGeom3 = new osg::Geometry();
     
209.     osg::Vec3Array* vertices3 = new osg::Vec3Array;
     
210.     GLfloat y3 = 0, z3 = 0, angle3 = 0.0;
     
211.     for ( angle3 = -0.5f * PI; angle3 <= 0; angle3 += 0.001f )
     
212.     {
     
213.         y3 = RADIUS * sin( angle3 )+20;
     
214.         z3 = RADIUS * cos( angle3 )+20;
     
215.         vertices3->push_back(osg::Vec3(20,y3,z3));
     
216.     }
     
217.     pointsGeom3->setVertexArray(vertices3);
     
218. 
     
219.     osg::Vec4Array* colors3 = new osg::Vec4Array;
     
220.     colors3->push_back(osg::Vec4(0.0f,1.0f,0.0f,1.0f));
     
221.     pointsGeom3->setColorArray(colors3);
     
222.     pointsGeom3->setColorBinding(osg::Geometry::BIND_OVERALL);
     
223.     osg::Vec3Array* normals3 = new osg::Vec3Array;
     
224.     normals3->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
     
225.     pointsGeom3->setNormalArray(normals3);
     
226. 
     
227.     pointsGeom3->setNormalBinding(osg::Geometry::BIND_OVERALL);
     
228.     pointsGeom3->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::POINTS,0,vertices3->size()));
     
229.     pointsGeom3->setName("pointsGeom3");
     
230.     //曲线3
     
231.     osg::Geometry* pointsGeom4 = new osg::Geometry();
     
232.     osg::Vec3Array* vertices4 = new osg::Vec3Array;
     
233.     GLfloat x4 = 0, z4 = 0, angle4 = 0.0;
     
234.     for ( angle4 = -0.5f * PI; angle4 <= 0; angle4 += 0.001f )
     
235.     {
     
236.         x4 = RADIUS * sin( angle4 )+20;
     
237.         z4 = RADIUS * cos( angle4 )+20;
     
238.         vertices4->push_back(osg::Vec3(x4,20,z4));
     
239.     }
     
240.     pointsGeom4->setVertexArray(vertices4);
     
241. 
     
242.     osg::Vec4Array* colors4 = new osg::Vec4Array;
     
243.     colors4->push_back(osg::Vec4(1.0f,0.0f,1.0f,1.0f));
     
244.     pointsGeom4->setColorArray(colors4);
     
245.     pointsGeom4->setColorBinding(osg::Geometry::BIND_OVERALL);
     
246.     osg::Vec3Array* normals4 = new osg::Vec3Array;
     
247.     normals4->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
     
248.     pointsGeom4->setNormalArray(normals4);
     
249. 
     
250.     pointsGeom4->setNormalBinding(osg::Geometry::BIND_OVERALL);
     
251.     pointsGeom4->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::POINTS,0,vertices4->size()));
     
252.     pointsGeom4->setName("pointsGeom4");
     
253.     //两点
     
254.     osg::Geometry* pointsGeom5 = new osg::Geometry();
     
255.     osg::Vec3Array* vertices5 = new osg::Vec3Array;
     
256.     vertices5->push_back(osg::Vec3(20,20,40));
     
257.     vertices5->push_back(osg::Vec3(20,20,0));
     
258.     pointsGeom5->setVertexArray(vertices5);
     
259.     osg::Vec4Array* colors5 = new osg::Vec4Array;
     
260.     colors5->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
     
261.     pointsGeom5->setColorArray(colors5);
     
262.     pointsGeom5->setColorBinding(osg::Geometry::BIND_OVERALL);
     
263.     osg::Vec3Array* normals5 = new osg::Vec3Array;
     
264.     normals5->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
     
265.     pointsGeom5->setNormalArray(normals5);
     
266. 
     
267.     pointsGeom5->setNormalBinding(osg::Geometry::BIND_OVERALL);
     
268.     pointsGeom5->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::POINTS,0,vertices5->size()));
     
269.     pointsGeom5->setName("pointsGeom5");
     
270. 
     
271.     osg::ref_ptr <osg::Point> ptSize = new osg::Point;
     
272.     ptSize->setSize( 9.0) ;
     
273.     geode2->getOrCreateStateSet()->setAttributeAndModes( ptSize.get (),osg::StateAttribute::ON);
     
274. 
     
275.     osg::ref_ptr<osg::MatrixTransform> selection=new osg::MatrixTransform;
     
276. 
     
277.     //tad
     
278.     osgManipulator::TranslateAxisDragger * tad=new osgManipulator::TranslateAxisDragger();
     
279.     float scale=20.0;
     
280.     tad->setupDefaultGeometry();
     
281.     tad->setMatrix(osg::Matrix::scale(scale,scale,scale)*osg::Matrix::translate(osg::Vec3(-20,-20,-20)));
     
282.     tad->addTransformUpdating(selection);
     
283.     tad->setHandleEvents(true);
     
284.     tad->setActivationModKeyMask(osgGA::GUIEventAdapter::MODKEY_CTRL);
     
285. 
     
286. 
     
287.     geode->addDrawable(pointsGeom);
     
288.     geode->addDrawable(pointsGeom3);
     
289.     geode->addDrawable(pointsGeom4);
     
290.     geode2->addDrawable(pointsGeom5);
     
291.     geode->addDrawable(linesGeom);
     
292.     root->addChild(geode);
     
293.     root->addChild(geode2);
     
294.     root->addChild(tad);
     
295.     myViewer.setSceneData(root.get());
     
296.    myViewer.addEventHandler(new CPickHandler(&myViewer));
     
297.     myViewer.realize();
     
298.     myViewer.run();
     
299. }
     

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