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技術社區[雲棲]
ObjectArx學習筆記-創建多段線
1、創建一個工具類CTool。
Tool.h：
static ads_real GetWidth(); static int GetColorIndex();
Tool.cpp
ads_real CTool::GetWidth()
{
ads_real width = 0;
if(acedGetReal(_T("\n輸入線寬："), &width)==RTNORM)
{
return width;
}
else
{
return 0;
}
}
int CTool::GetColorIndex()
{
int colorIndex = 0;
if(acedGetInt(_T("輸入顏色索引值(0~256)："), &colorIndex) != RTNORM)
{
return 0;
}
while(colorIndex < 0 || colorIndex >256)
{
acedPrompt(_T("輸入了錯誤的顏色索引值！"));
if(acedGetInt(_T("輸入顏色索引值(0~256)"), &colorIndex) != RTNORM)
{
return 0;
}
}
return colorIndex;
}
2、添加命令AddPoly
實現代碼如下：
static void qxzyAddPolyDynamicCommands_AddPoly(void)
{
// Add your code for command qxzyAddPolyDynamicCommands._AddPoly here
int colorIndex = 0;
ads_real width = 0;
int index = 2;
ads_point ptStart;
if(acedGetPoint(NULL, _T("\n輸入第一點:"), ptStart) != RTNORM)
return;
ads_point ptPrevious,ptCurrent;
acdbPointSet(ptStart, ptPrevious);
AcDbObjectId polyId;
acedInitGet(NULL, _T("W C O"));
int rc = acedGetPoint(ptPrevious,
_T("\n輸入下一點[寬度(W)/顏色(C)]<完成(O)>"), ptCurrent);
while(rc == RTNORM || rc == RTKWORD)
{
if(rc == RTKWORD)
{
ACHAR kword[20];
if(acedGetInput(kword)!=RTNORM)
return;
if(strcmp((LPSTR)(LPCTSTR)kword,"W")==0)
{
width = CTool::GetWidth();
}
else if(strcmp((LPSTR)(LPCTSTR)kword,"C")==0)
{
colorIndex = CTool::GetColorIndex();
}
else if(strcmp((LPSTR)(LPCTSTR)kword, "O")==0)
{
return;
}
else
{
acutPrintf(_T("\n無效的關鍵字"));
}
}
else if(rc == RTNORM)
{
if(index == 2)
{
AcDbPolyline *pPoly= new AcDbPolyline(2);
AcGePoint2d ptGe1,ptGe2;
ptGe1[X]=ptPrevious[X];
ptGe1[Y]=ptPrevious[Y];
ptGe2[X]=ptCurrent[X];
ptGe2[Y]=ptCurrent[Y];
pPoly->addVertexAt(0, ptGe1);
pPoly->addVertexAt(1, ptGe2);
pPoly->setConstantWidth(width);
pPoly->setColorIndex(colorIndex);
AcDbBlockTable *pBlkTbl;
acdbHostApplicationServices()->workingDatabase()
->getSymbolTable(pBlkTbl, AcDb::kForRead);
AcDbBlockTableRecord *pBlkTblRcd;
pBlkTbl->getAt(ACDB_MODEL_SPACE, pBlkTblRcd, AcDb::kForWrite);
pBlkTblRcd->appendAcDbEntity(polyId, pPoly);
pBlkTblRcd->close();
pBlkTbl->close();
pPoly->close();
}
else if(index>2)
{
AcDbPolyline *pPoly;
acdbOpenObject(pPoly, polyId, AcDb::kForWrite);
AcGePoint2d ptGe;
ptGe[X]=ptCurrent[X];
ptGe[Y]=ptCurrent[Y];
pPoly->addVertexAt(index-1,ptGe);
pPoly->setConstantWidth(width);
pPoly->setColorIndex(colorIndex);
pPoly->close();
}
index++;
acdbPointSet(ptCurrent,ptPrevious);
}
acedInitGet(NULL, _T("W C O"));
rc = acedGetPoint(ptPrevious,
_T("\n輸入下一點[寬度(W)/顏色(C)]<完成(O)>"), ptCurrent);
}
}
最後更新：2017-04-03 08:26:26