void
ArxDbgUtils::getEcsPlane(const AcGeVector3d& entNormal, AcGePlane& ecsPlane)
{
AcGeMatrix3d ecsMat;
getEcsToWcsMatrix(AcGePoint3d::kOrigin, entNormal, ecsMat);
AcGePoint3d origin;
AcGeVector3d xAxis, yAxis, zAxis;
ecsMat.getCoordSystem(origin, xAxis, yAxis, zAxis);
ecsPlane.set(origin, xAxis, yAxis);
}
void generateCutRegion(AcDb3dSolid* pSolid, int offset, int direction)
{
//创建切面
AcGePlane plane;
if( direction == 1)
plane.set(AcGePoint3d(offset,0,0),AcGeVector3d(1,0,0));
else if( direction == 2)
plane.set(AcGePoint3d(0,offset,0),AcGeVector3d(0,1,0));
else if( direction == 3)
plane.set(AcGePoint3d(0,0,offset),AcGeVector3d(0,0,1));
//得到实体与切面相切的截面
AcDbRegion *pSelectionRegion = NULL;
pSolid->getSection(plane, pSelectionRegion);
//将其移动到YZ平面
//moveToBottom(pSelectionRegion);
//将截面加入到模型空间
PostToModelSpace(pSelectionRegion);
}
void
ArxDbgUtils::getEcsPlane(const AcGePoint3d& origin,
const AcGeVector3d& entNormal, AcGePlane& ecsPlane,
AcGeVector3d& ecsXAxis)
{
AcGeMatrix3d ecsMat;
getEcsToWcsMatrix(origin, entNormal, ecsMat);
AcGePoint3d tmpOrigin;
AcGeVector3d yAxis, zAxis;
ecsMat.getCoordSystem(tmpOrigin, ecsXAxis, yAxis, zAxis);
ecsPlane.set(tmpOrigin, ecsXAxis, yAxis);
}
void drawCylinder()
{
// 创建特定参数的圆柱体（实际上最后一个参数决定了实体是一个圆锥体还是圆柱）
AcDb3dSolid *pSolid = new AcDb3dSolid();
pSolid->createFrustum(30, 10, 10, 10);
// 将圆锥体添加到模型空间
PostToModelSpace(pSolid);
//创建切面
AcGePlane plane;
plane.set(AcGePoint3d(8,0,0),AcGeVector3d(1,0,0));
//得到实体与切面相切的截面
AcDbRegion *pSelectionRegion = NULL;
pSolid->getSection(plane, pSelectionRegion);
//将其移动到YZ平面
moveToBottom(pSelectionRegion);
//将截面加入到模型空间
PostToModelSpace(pSelectionRegion);
}
