How to get WCS coordinates of an entity within a second level nested block?

[gerardo2m]

Hi.

 

My problem is following:

 

I have an INSERT entity with nameDXF "X".

 

I have an nested INSERT (inside "X") with nameDXF "F".

 

Finally, I have a sphere that makes up the INSERT Block reference "F", the property "Position" is (0 0 0). In the drawing the position of the sphere is outside the origin of the WCS.

 

 

I need to transform the coordinates of the "Position" property of the sphere to the WCS.

 

I thought that this would have a result:

 

(setq T (trans ptoPosition F X))

(trans T X 0)

 

But I get nil in both cases.

 

 

Any comments on how I should use the TRANS function?

 

Greetings.

[Lee Mac]

You will need to transform the coordinates of the center of the sphere using a transformation matrix calculated by multiplying the transformation matrices for each parent block reference - here is a similar example used in an existing program, written to account for any level of nesting.