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Shape with Dummy Net to Assign Net that the Shape is Touching

EASiA

Hi All,

Is there a skill out there that can go through all shapes on any layer that are dummy nets and assign them to the net that they are touching? Basically if a shape is a dummy net and touching another net, I want it to be assigned to said net.

I posted this also in the PCB Design forum (https://community.cadence.com/cadence_technology_forums/f/pcb-design/43334/shape-with-dummy-net-to-assign-net-that-the-shape-is-touching). I am not sure which one would actually get an answer quicker.

Any help with this would be greatly appreciated.

  • If you are using 17.2 with a later hotfix then you could use axlAddSelectPoly to select the items which are touched/covered by the shape

    so basically something like this:

    set the find filter to vias, clines

    foreach shape on a certain layer (which have no net)

    make sure only this layer is enabled

     do a poly selection axlAddSelectPoly

     get selection set axlGetSelSet()

     then do whatever you want to do. If it only returns 1 item: bingo. But what to do when more items returned?

     Then change the net of the shape. 

    <end of foreach>

    btw, I've made such assigning function as a part of a anti-etch tool. It automatically finds the items within the shape, and based on quantity of nets it automatically assigns it to that net. So eg 10x via with GND and 20x via with +3V3, it would automatically assing to +3V3.

    Bram

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