How highlight multiple edges of a (custom) entity?

[maisoui]

Hi,

I'd like to reproduce 'remove points' feature of mleader for my custom entity, and I'm looking for how highlight multiple edges. I found a lot of example on how highlight one segment or edge of an entity but none for multiple.

A small picture to illustrate what I'd like to do:

Here the code I used (found on ADN or in forums):

hightlightEdge(const AcDbObjectId & objId, const int iMarker) const
{

Acad::ErrorStatus es;

//open entity
AcDbEntity * pEntity;
if((es = acdbOpenAcDbEntity(pEntity, objId, AcDb::kForRead)) != Acad::eOk)
	return;

//get the subentity ID for the edge that is picked
AcGePoint3d pickpnt;
AcGeMatrix3d mx;
int iNumIds;
AcDbFullSubentPath * pSubentIds;
if((es = pEntity->getSubentPathsAtGsMarker(AcDb::kEdgeSubentType, iMarker, pickpnt, mx, iNumIds, pSubentIds)) == Acad::eOk)
{
	// At this point the subentId's variable contains the
	// address of an array of AcDbFullSubentPath objects.
	// The array should be one element long, so the picked
	// edge's AcDbFullSubentPath is in subentIds[0].
	//
	// For objects with no edges (such as a sphere), the
	// code to highlight an edge is meaningless and must
	// be skipped.
	//
	if(iNumIds > 0) 
	{
		Acad::ErrorStatus es = pEntity->highlight(pSubentIds[0]);
		assert(es == Acad::eOk);
	}

	delete [] pSubentIds;
}

pEntity->close();

}

remark:

• I defined all necessary methods in my custom entity (subGetSubentPathsAtGsMarker, subHighlight, subUnhighlight).
• It works very well for one segment (but every time I call my method hightlightEdge, it clears the previous highlighted edge)

All suggestions are welcomed.

Regards,

Jonathan

[owenwengerd]

Have you tried calling highlight() multiple times without closing and re-opening the entity?

[maisoui]

Yes I tried (I hoped it was the solution). Only the last call to highlight has effect.

[Balaji_Ram]

Hello,

This blog post might be helpful.

http://adndevblog.typepad.com/autocad/2012/06/get-the-entitiessubentitiesgeometry-an-associative-dim...

Sub-entities that are associated with a selected dimension are highlighted.