void Additional_Class::Get_PolyLine_Point( AcDbObjectId PolyLineId,AcGePoint3dArray &PointArray )
{
AcDbEntity *pEnt_Temp = NULL;
Acad::ErrorStatus es = acdbOpenAcDbEntity(pEnt_Temp, PolyLineId, AcDb::kForRead);
if (es != Acad::eOk)
{
acutPrintf(_T("\nOPEN POLYLINE ERROR"));
return;
}
if (!pEnt_Temp->isKindOf(AcDbPolyline::desc()))
{
acutPrintf(_T("\nENTITY IS NOT POLYLINE"));
return;
}
AcDbPolyline *pPolyLine = AcDbPolyline::cast(pEnt_Temp);
int num = pPolyLine->numVerts();
AcGePoint3d Start_temp_PT,End_temp_PT;
for (int index=0; index<num; index++)
{
if (pPolyLine->segType(index) == AcDbPolyline::kLine)
{
AcGeLineSeg3d tempLine;
pPolyLine->getLineSegAt(index,tempLine);
Start_temp_PT = tempLine.startPoint();
End_temp_PT = tempLine.endPoint();
PointArray.append(Start_temp_PT);
PointArray.append(End_temp_PT);
}
else if (pPolyLine->segType(index) == AcDbPolyline::kArc)
{
AcGeCircArc2d tempArc;
pPolyLine->getArcSegAt(index,tempArc);
Start_temp_PT.set(tempArc.startPoint().x,tempArc.startPoint().y,0);
End_temp_PT.set(tempArc.endPoint().x,tempArc.endPoint().y,0);
PointArray.append(Start_temp_PT);
PointArray.append(End_temp_PT);
}
}
pEnt_Temp->close();
AcGeIntArray IndexArray;
for (int i=1; i<PointArray.length();i++)
{
if (PointArray[i] == PointArray[i-1])
{
IndexArray.append(i);
PointArray.remove(PointArray[i]);
}
}
}
bool Additional_Class::PolyLineIfRectangle( AcDbPolyline *PolyLineEntity )
{
AcGePoint3dArray tempPt_List;
AcGePoint3d Start_temp_PT,End_temp_PT;
if (PolyLineEntity->isClosed())
{
int Num = Get_NumPolyLine(PolyLineEntity);
if (Num == 4)
{
for (int i = 0; i<Num; i++)
{
if (PolyLineEntity->segType(i) == AcDbPolyline::kLine);
{
AcGeLineSeg3d tempLine;
PolyLineEntity->getLineSegAt(i,tempLine);
Start_temp_PT = tempLine.startPoint();
End_temp_PT = tempLine.endPoint();
tempPt_List.append(Start_temp_PT);
tempPt_List.append(End_temp_PT);
}
if (PolyLineEntity->segType(i) == AcDbPolyline::kArc)
{
return false;
}
}
for (int i=2; i<8; i=i+2)
{
AcGeVector3d v1,v2;
v1 = tempPt_List[i-1] - tempPt_List[i-2];
v2 = tempPt_List[i+1] - tempPt_List[i];
if (v1.isPerpendicularTo(v2)==Adesk::kFalse )
{
return false;
}
}
return true;
}
return false;
}
return false;
}
virtual Acad::ErrorStatus getOsnapInfo(
AcDbEntity* pickedObject,
Adesk::GsMarker gsSelectionMark,
const AcGePoint3d& pickPoint,
const AcGePoint3d& lastPoint,
const AcGeMatrix3d& viewXform,
AcArray<AcGePoint3d>& snapPoints,
AcArray<int>& geomIdsForPts,
AcArray<AcGeCurve3d*>& snapCurves,
AcArray<int>& geomIdsForLines)
{
// Specialised implementation for AcDbPolylines:
// Parametrisation of AcDbPolylines is different: each whole numbered paramater appears
// at a vertex, so we cannot simply divide by three to get the correct parameter.
// Protocol Extension insures that the following assertion is always
// true, but check in non-prod versions just to be safe.
assert( pickedObject->isKindOf( AcDbPolyline::desc() ));
// but in production, a hard cast is fastest
AcDbPolyline *pPline = (AcDbPolyline*)pickedObject;
Acad::ErrorStatus es;
if ( bSnapToSegments )
{
// Snap to a third of each of the segments
unsigned int numSegs = pPline->numVerts() - 1;
AcGeLineSeg3d segLn;
AcGeCircArc3d segArc;
double startParam, endParam, newParam, dist;
AcGePoint3d pt;
for ( unsigned int idx = 0; idx < numSegs; idx++ )
{
switch( pPline->segType( idx ))
{
case AcDbPolyline::kLine:
es=pPline->getLineSegAt( idx, segLn );
startParam = segLn.paramOf( segLn.startPoint() );
endParam = segLn.paramOf( segLn.endPoint() );
snapPoints.append(segLn.evalPoint( startParam + ((endParam - startParam) / 3 )));
snapPoints.append(segLn.evalPoint( startParam + ((endParam - startParam) * 2 / 3 )));
break;
case AcDbPolyline::kArc:
es=pPline->getArcSegAt( idx, segArc );
startParam = segArc.paramOf( segArc.startPoint() );
endParam = segArc.paramOf( segArc.endPoint() );
dist = segArc.length( startParam, endParam );
newParam = segArc.paramAtLength( startParam, dist / 3 );
snapPoints.append( segArc.evalPoint( newParam ));
newParam = segArc.paramAtLength( startParam, dist * 2 / 3 );
snapPoints.append( segArc.evalPoint( newParam ));
break;
default:
break;
}
}
}
else {
double endParam;
AcGePoint3d pt;
double dist;
es=pPline->getEndParam( endParam );
es=pPline->getDistAtParam( endParam, dist );
es=pPline->getPointAtDist( dist / 3, pt );
assert(Acad::eOk==es);
snapPoints.append( pt );
es=pPline->getPointAtDist( dist * 2 / 3, pt );
assert(Acad::eOk==es);
snapPoints.append( pt );
if ( pPline->isClosed() )
{
es=pPline->getStartPoint( pt );
snapPoints.append( pt );
}
}
return Acad::eOk;
}