Change the color of a nested AcDbSolid in a custom entity

[kubitMarco]

Hi,

I use an AcDbSolid as AcGiDrawable in the call geometry.draw() in the wordlDraw function of a custom entity.

Here the part of the code inside worldDraw:

AcDbSolid* pSolid = new AcDbSolid();

//draw the solid

//calculate the transformation matrix xForm

//pSolid is managed outside the custom entity, the lifetime is longer then the custom entity itsself 

//pSolid can used in more than one entity

mode->geometry().pushModelTransform(xForm);

mode->geometry().draw(pSolid);

mode->geometry().popModelTransform();

I have also overridden the function setAttributes in my custom entity. There I set to kDrawableIsCompoundObject:

Adesk::UInt32 MyEntity::subSetAttributes (AcGiDrawableTraits *traits)

{

assertReadEnabled ();

Adesk::UInt32 ret = AcDbEntity::subSetAttributes (traits);

return ret | kDrawableIsCompoundObject;

}

And most is fine. I see the solid as graphical representation of my entity.

But I can't change the color of my entity. If I choose a new color in the property window the entity keeps the color of the layer.  Only if I move the entity to a layer with another color the color of the entity changes too.

What do I do wrong?

Regards,

Marco

[kubitMarco]

I found a solution. I don't know if it's right, but it seems to work.

I set the the color of the AcDb3dSolid to ByBlock (ColorIndex = 0). It's like when you define a block definition where you want to change the color of the entities inside by the settings of the block reference.

If there is a better solution, reply please.

Regards, Marco

[owenwengerd · Accepted solution]

Color kByBlock is the correct solution.