AutoCAD 二次开发：获取填充边界

AutoCAD 二次开发：获取填充边界

//遍历填充对象的边界信息。 bool CAcUiSelDialog::OpenDwgFile(const ACHAR* fileName) { Acad::ErrorStatus es; //AcDbObjectIdArray objectIds ; //边界id数组 AcGeVector3d normal; //填充平面 bool bAssociative; //关联型 AcDbHatch::HatchPatternType patternType;//填充图案类型 const ACHAR *patternName; //填充图案名 AcDbHatch::HatchStyle hatchStyle; //2.读取.dwg文件 AcDbDatabase *pDb = new AcDbDatabase(Adesk::kFalse); es=pDb->readDwgFile(_T("D:\\*.dwg")); //.dwg文件路径 if (Acad::eOk!=es) { acedAlert(_T("临时数据库打开失败")); delete pDb; return false; } //3.获取块表 AcDbBlockTable *pBlkTbl; es=pDb->getSymbolTable(pBlkTbl, AcDb::kForRead); if (Acad::eOk!=es) { acedAlert(_T("获取块表错误!")); delete pDb; pBlkTbl->close(); return false; } //4.获取块表记录 AcDbBlockTableRecord *pBlkTblRcd; es=pBlkTbl->getAt(ACDB_MODEL_SPACE, pBlkTblRcd,AcDb::kForRead); if (Acad::eOk!=es) { delete pDb; pBlkTbl->close(); pBlkTblRcd->close(); acedAlert(_T("获取块表记录错误！")); return false; } pBlkTbl->close(); //5.创建块表记录迭代器,遍历模型空间块表记录 CString hClass; AcDbBlockTableRecordIterator *pBlkTblRcdItr; pBlkTblRcd->newIterator(pBlkTblRcdItr); AcGePoint3d *pPt3D = new AcGePoint3d(); if (NULL == pPt3D) { pBlkTblRcd->close(); delete pDb; //delete pHatch; delete pBlkTblRcdItr; return false; } //遍历块表记录中的实体 for (pBlkTblRcdItr->start();!pBlkTblRcdItr->done();pBlkTblRcdItr->step()) { //6.得到实体对象 AcDbHatch *pHatch= new AcDbHatch(); AcDbEntity *pEnt; Adesk::Int32 loopType; Adesk::UInt16 color=0; AcGePoint2dArray vertices; AcGeDoubleArray bulges; pBlkTblRcdItr->getEntity(pEnt,AcDb::kForRead); if (!pEnt->isKindOf(AcDbHatch::desc())) { pEnt->close(); pHatch->close(); //delete patternName; delete pBlkTblRcdItr; return false; } pHatch=AcDbHatch::cast(pEnt); if (pHatch != NULL) { int loopNums=pHatch->numLoops(); //acutPrintf(_T("%d"),loopNums);//此处可用 normal=pHatch->normal(); //平面向量 bAssociative=pHatch->associative(); //关联性 patternName=pHatch->patternName(); //填充图案名 patternType=pHatch->patternType(); //填充类型 hatchStyle=pHatch->hatchStyle(); //hatch style of the hatch entity,填充风格 color=pHatch->colorIndex(); //得到为indicates the entity uses the color specified in the LayerTableRecord it references. //acutPrintf(_T("填充对象的颜色：%d"),color); / AcDbHatch *pHatch2 = new AcDbHatch(); //新建填充对象  es=pHatch2->setNormal(normal); // 设置填充平面 if (Acad::eOk!=es) { acedAlert(_T("构造向量失败")); return false; } es=pHatch2->setElevation(0); es=pHatch2->setAssociative(bAssociative); // 设置关联性 if (Acad::eOk!=es) { acedAlert(_T("构造关联性失败")); return false; } es=pHatch2->setPattern(patternType,patternName); // 设置填充图案 if (Acad::eOk!=es) { acedAlert(_T("构造图案失败")); return false; } es=pHatch2->setHatchStyle(hatchStyle);//设置填充类型 es=pHatch2->setColorIndex(color);//设置颜色 for (int loopIndex=0;loopIndex<loopNums;loopIndex++)//遍历第-61条边界 { //为每一条边界长久存放数组 AcGeVoidPointerArray edgePtrs; AcGeIntArray edgeTypes; AcGeVoidPointerArray VoidPtrAry; AcGeIntArray IntAry; if (Acad::eNotApplicable != pHatch->getLoopAt(loopIndex,loopType, vertices,bulges))//获取kPolyLine的边界 { //多义线----kPolyLine-----获取其顶点; int iIndex = 0; for (iIndex=0; iIndex<vertices.length(); iIndex++) { pPt3D->x = vertices.at(iIndex).x;//This function returns the element of the array at position i pPt3D->y = vertices.at(iIndex).y; acutPrintf(_T("多义线的坐标是：%d,%d"),pPt3D->x,pPt3D->y); //pPenStroke->m_Stroke.push_back(pPt3D);//保存多义线顶点 } } //非多义线 else { //分别获取第-61条边界，每一条边界都是AcGe对像数组 es=pHatch->getLoopAt(loopIndex, //Input index of selected loop  loopType, //Output loop type  edgePtrs, //Output a set of AcGeCurve pointers  edgeTypes); //Output a set of enumerated edge types  for (int j=0; j<edgePtrs.length(); j++)//遍历AcGe对象数组中的点 { /* else if(edgeTypes[j]==AcDbHatch::kCirArc)//圆弧 { //AcGeCircArc2d *CirArc=(AcGeCircArc2d *)edgePtrs; acutPrintf(_T("\n圆弧")); //可以根据数学圆弧构造相应的AcDb圆弧，取决于你（以下同） } else if(edgeTypes[j]==AcDbHatch::kEllArc)//椭圆弧 { //AcGeEllipArc2d *EllArc=(AcGeEllipArc2d *)edgePtrs; acutPrintf(_T("\n椭圆弧")); } else if(edgeTypes[j]==AcDbHatch::kSpline)//NURBS曲线 { //AcGeNurbCurve2d *Spline=(AcGeNurbCurve2d *)edgePtrs; acutPrintf(_T("\nNURBS曲线")); } //获取直线的起点和终点，只考虑直线，章中只有直线 if(edgeTypes[j]==AcDbHatch::kLine)//线型 { AcGeLineSeg2d *pLnSeg=(AcGeLineSeg2d *)edgePtrs.at(j);//遍历第j个AcGe对象 } */ AcGeLineSeg2d *pLineSeg= NULL; //边类型（仅当边界不是多段线时）： //1 = 直线；= 圆弧；= 椭圆弧；= 样条曲线 switch(edgeTypes.at(j))//判断边类型 { case 1://-----直线 { pLineSeg = (AcGeLineSeg2d *)edgePtrs.at(j); } } if (NULL != pLineSeg) { AcGePoint3d * pPt3D1 = new AcGePoint3d() ;//起点，并转换为D  pPt3D1->x = pLineSeg->startPoint().x; pPt3D1->y = pLineSeg->startPoint().y; AcGePoint2d BeginPt(pPt3D1->x, pPt3D1->y); delete pPt3D1; AcGePoint3d *pPt3D2=new AcGePoint3d() ;//尾点，并转为D  pPt3D2->x = pLineSeg->endPoint().x; pPt3D2->y = pLineSeg->endPoint().y; AcGePoint2d EndPt(pPt3D2->x, pPt3D2->y); delete pPt3D2; AcGeLineSeg2d *pObj = new AcGeLineSeg2d(BeginPt, EndPt);// //acutPrintf(_T("添加第%d对象数组")),loopIndex; VoidPtrAry.append(pObj); IntAry.append(AcDbHatch::kLine); } }//遍历边界（AcGe对象数组）中AcGe对象结束，得到AcGe对象数组  //es=pHatch2->appendLoop(loopType,VoidPtrAry,IntAry); es=pHatch2->appendLoop(loopType,VoidPtrAry,IntAry); if(Acad::eOk!=es) { acedAlert(_T("Acad::eInvalidInput")); pHatch2->close(); pHatch->close(); pBlkTblRcd->close(); delete pBlkTblRcdItr; delete patternName; delete pDb; return false; } }//将每一条边界添加进自定义实体, //将得到的每条边界加入到填充对象中 }//边界循环结束,得到填充对象的整边界 es = pHatch2->evaluateHatch(); // 显示填充对象 AcDbObjectId hatchId; // 添加到模型空间 hatchId = PostToModelSpace(pHatch2); if (hatchId!=NULL) { acedAlert(_T("获取填充对象成功\n")); } pEnt->close(); pHatch->close();//关闭实体， //pHatch2->close(); pBlkTblRcd->close(); // delete patternName; delete pBlkTblRcdItr; delete pDb; return true; }//pHatch对象为空 pEnt->close(); pHatch->close(); delete patternName; delete pBlkTblRcdItr; delete pDb; return false; }//遍历dwg文件临时库结束 }