ENDBLK layer

I got a problem purging some layers. The layers were not current, there was no entities on them, there was no block (attributes and entities inside) refers to them, no empty block, no empty text, NOTHING. I created a DXF file to find out the objects attached to those layers. They were attached to the ENDBLK object of two different block definitions. I changed the layer name directly inside the dxf file and I re-imported the dxf inside AutoCAD. After that I was able to purge the layers. My question is : how can I change the layer of the ENDBLK object in a lisp routine. I tried to get into the entities using -2 dxf code but I didn't have access to the ENDBLK object. Any idea ?

 

Step through the block definition recreating each element
(not a big deal) then make the ENDBLK the way you
want. There is no way with LISP to changed just the
ENDBLK entity, you must recreate the block.


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Autodesk Discussion Group Facilitator

on them, there was no block (attributes and entities inside) refers to them, no empty
block, no empty text, NOTHING. I created a DXF file to find out the objects attached to
those layers. They were attached to the ENDBLK object of two different block definitions.
I changed the layer name directly inside the dxf file and I re-imported the dxf inside
AutoCAD. After that I was able to purge the layers. My question is : how can I change the
layer of the ENDBLK object in a lisp routine. I tried to get into the entities using -2
dxf code but I didn't have access to the ENDBLK object. Any idea ?

 

Thanks, I will try it.

 

our special purge command does exactly what you did but with lisp.

write dxf file, read each section, each object...
not only do you have to modify ENDBLK objects but also SEQEND objects. and
BLOCK objects, for some reason, have a layer property that must be set to
"0" sometimes. dxfout is a good way to purge APPIDs or to merge and purge
layers.

was no entities on them, there was no block (attributes and entities inside)
refers to them, no empty block, no empty text, NOTHING. I created a DXF file
to find out the objects attached to those layers. They were attached to the
ENDBLK object of two different block definitions. I changed the layer name
directly inside the dxf file and I re-imported the dxf inside AutoCAD. After
that I was able to purge the layers. My question is : how can I change the
layer of the ENDBLK object in a lisp routine. I tried to get into the
entities using -2 dxf code but I didn't have access to the ENDBLK object.
Any idea ?