VC6.0.zip_C++_OpenInventor_alarmsensor

#include <Inventor\Win\SoWin.h> #include <Inventor\Win\viewers\SoWinExaminerViewer.h> #include <Inventor\nodes\SoCoordinate3.h> #include <Inventor\nodes\SoFaceSet.h> #include <Inventor\nodes\SoMaterial.h> #include <Inventor\nodes\SoNormal.h> #include <Inventor\nodes\SoNormalBinding.h> #include <Inventor\nodes\SoSeparator.h> #include <Inventor\nodes\SoVertexProperty.h> #include <Inventor\nodes\SoShapeHints.h> #include <Inventor\nodes\SoTexture.h> #include <Inventor\events\SoKeyboardEvent.h> #include <Inventor\nodes\SoEventCallback.h> static const float vertices[12][3] = { //顶点坐标 { 0, 0, 0 },{ 1, -1, 0 },{ 1, 1, 0 }, { 0.8f, 0, 0 },{ 0.3f, -0.2f, 0 },{ 0.3f, 0.2f, 0 }, { 0, 0, 0 },{ 0, -1, 0 },{ 1, -1, 0 }, { 0.6f, 0, 0 },{ 0.4f, -0.9f, 0 },{ 0.1f, -0.5f, 0 } }; //多边形中顶点的个数 static int numvertices[4] = { 3, 3, 3, 3 }; SoShapeHints *m_hints; //对用户的按键事件进行响应 void myKeyPressCB(void *userData, SoEventCallback *eventCB) { const SoEvent *event = eventCB->getEvent(); if (SO_KEY_PRESS_EVENT(event, W)) { //是否按下了字母W if (m_hints->windingType.getValue() == SoShapeHints::ODD_TYPE) { m_hints->windingType = SoShapeHints::NON_ZERO_TYPE; printf("SoShapeHints::NON_ZERO_TYPE\n"); } else if (m_hints->windingType.getValue() == SoShapeHints::NON_ZERO_TYPE) { m_hints->windingType = SoShapeHints::POSITIVE_TYPE; printf("SoShapeHints::POSITIVE_TYPE\n"); } else if (m_hints->windingType.getValue() == SoShapeHints::POSITIVE_TYPE) { m_hints->windingType = SoShapeHints::NEGATIVE_TYPE; printf("SoShapeHints::NEGATIVE_TYPE\n"); } else if (m_hints->windingType.getValue() == SoShapeHints::NEGATIVE_TYPE) { m_hints->windingType = SoShapeHints::NO_WINDING_TYPE; printf("SoShapeHints::NO_WINDING_TYPE\n"); } else if (m_hints->windingType.getValue() == SoShapeHints::NO_WINDING_TYPE) { m_hints->windingType = SoShapeHints::ABS_GEQ_TWO_TYPE; printf("SoShapeHints::ABS_GEQ_TWO_TYPE\n"); } else if (m_hints->windingType.getValue() == SoShapeHints::ABS_GEQ_TWO_TYPE) { m_hints->windingType = SoShapeHints::ODD_TYPE; printf("SoShapeHints::ODD_TYPE\n"); } } } //根据不同的环绕规则来创建平面 SoSeparator *makeObjectFaceSet() { SoSeparator *result = new SoSeparator(); result->ref(); m_hints = new SoShapeHints; result->addChild(m_hints); m_hints->windingType = SoShapeHints::ODD_TYPE; m_hints->windingType = SoShapeHints::COUNTERCLOCKWISE; printf("Press 'W' (in selection mode) to change winding rule\n"); printf("SoShapeHints::ODD_TYPE\n"); SoVertexProperty *myVertexProperty = new SoVertexProperty; //定义材质节点 myVertexProperty->orderedRGBA.setValue(SbColor( 0.4f, 0, 0 ).getPackedValue()); myVertexProperty->normalBinding = SoVertexProperty::OVERALL; myVertexProperty->normal.set1Value( 0, SbVec3f( 0, 0, 1 )); //定义每个面的颜色 int i; for (i = 0; i < 12; i++) { myVertexProperty->orderedRGBA.set1Value(i, SbColor( 1, 0, 0 ).getPackedValue()); //定义顶点所使用的坐标 myVertexProperty->vertex.setValues(0, 12, vertices); //定义 SoFaceSet 面集合 SoFaceSet *myFaceSet = new SoFaceSet; myFaceSet->numVertices.setValues(0, 4, numvertices); myFaceSet->vertexProperty.setValue(myVertexProperty); result->addChild(myFaceSet); result->unrefNoDelete(); return result; } } int main (int, char **argv) { HWND myWindow = SoWin::init(argv[0]); if (myWindow == NULL) exit(1); SoSeparator *root = new SoSeparator; root->ref(); //处理按键事件 SoEventCallback *myEventCB = new SoEventCallback; myEventCB->addEventCallback(SoKeyboardEvent::getClassTypeId(), myKeyPressCB, root); root->addChild(myEventCB); root->addChild(makeObjectFaceSet()); SoWinExaminerViewer *myViewer = new SoWinExaminerViewer(myWindow); myViewer->setBackgroundColor(SbColor(0.5f, 0.5f, 0.5f)); myViewer->setSceneGraph(root); myViewer->setTitle("SoShapeHints节点的环绕规则示例"); myViewer->setViewing(FALSE); myViewer->viewAll(); myViewer->show(); SoWin::show(myWindow); SoWin::mainLoop(); return 0; }