Isolate diferent signal polygons in same layer

Question

Hello everyone,

I'm trying to add a polygon (which is a logo) on the bottom copper layer on mt PCB

I imported using the import-dxf ulp.

When text is added using the vector font on a ground plane, a clearance automatically appears around it so that it can be read. I'd like to have this same effect with the polygon, but instead, when doing ratsnest, it gets all filled with the ground plane.

This image is going to help me explain:

Below is the text, being isolated from the ground plane. this is what I want to happen with the logo, but as you can see it gets covered with the ground plane.

The logo polygon already has a different name than GND. What else could I try?

Thamnk you very much

autodeskguest · Accepted Answer

On 20/06/2014 10:53 a.m., Esteve Cruanyes wrote:

Hello everyone,
I'm trying to add a polygon (which is a logo) on the bottom copper layer
on mt PCB
I imported using the import-dxf ulp.
When text is added using the vector font on a ground plane, a clearance
automatically appears around it so that it can be read. I'd like to have
this same effect with the polygon, but instead, when doing ratsnest, it
gets all filled with the ground plane.
This image is going to help me explain:

Below is the text, being isolated from the ground plane. this is what I
want to happen with the logo, but as you can see it gets covered with
the ground plane.
The logo polygon already has a different name than GND. What else could
I try?

See the HELP Polygon RANK and ISOLATE

Change the rank of the GND to be higher than the logo then ratsnest.

That will reveal the logo.

Then change the ISOLATE figure for the logo polygons, then ratsnest.

That will specify the clearance

HTH

Warren