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发表于 2004-11-2 22:10:00
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参考:
static void GetCurveLength_Len(void)
{
// Add your code for command GetCurveLength._Len here
ads_name en;
ads_point pt;
int rc;
rc = acedEntSel("\nSelect an entity: ", en, pt);
if (rc == RTNORM)
{
AcDbObjectId eId;
acdbGetObjectId(eId, en);
AcDbObjectPointer pEnt (eId, AcDb::kForRead);
if ((_stricmp(pEnt->isA()->name(), "AcDbPolyline") == 0) ||
(_stricmp(pEnt->isA()->name(), "AcDb2dPolyline") == 0))
{
AcDbCurve *pCurve = AcDbCurve::cast(pEnt.object());
double endParam;
pCurve->getEndParam(endParam);
double len;
pCurve->getDistAtParam(endParam, len);
CString str;
str.Format(_T("%f"), len);
acedAlert(str);
}
}
} |
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