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snapping to edges when invoking an enterBox

Adhil

hey!!!

how can you make an enterBox cursor to snap to edges, i am trying to automatically place vias on an intersection after i draw an enterbox covering that intersection.

the script is working properly,however, it would be more convenient if the enterBox cursor could automatically snap to edges.

 

Adhil

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  • dmay

    Here are some things you should try to get this working:

    1. Test the gravity control settings in the leHiEditEditorOptions() form until you can get them to work the way you want for this command. Then set the appropriate cdsenv variables before and after your command.
    2. One other variable you may need to set is the gravityAperture. Maybe this variable isn't big enough so you aren't seeing any significant snap. This setting indicates how close you need to get to an edge before snapping occurs. The code I sent left this at the default which is 0.3 as provided by Cadence.
    envSetVal("layout" "gravityAperture" 'float   1.0)
    3. You will not see the edges highlighted like when you are using the ruler command. I don't know how to enable this or if it is even possible. These settings will simply snap the cursor to an edge.
    4. The settings I provided only enable snapping to edges. If you are wanting to snap to vertices or centerlines, you'll to update the gravityType string.
    5. The layers must be selectable for snapping to work.

    I hope this helps.

    Derek

Reply
  • dmay

    Here are some things you should try to get this working:

    1. Test the gravity control settings in the leHiEditEditorOptions() form until you can get them to work the way you want for this command. Then set the appropriate cdsenv variables before and after your command.
    2. One other variable you may need to set is the gravityAperture. Maybe this variable isn't big enough so you aren't seeing any significant snap. This setting indicates how close you need to get to an edge before snapping occurs. The code I sent left this at the default which is 0.3 as provided by Cadence.
    envSetVal("layout" "gravityAperture" 'float   1.0)
    3. You will not see the edges highlighted like when you are using the ruler command. I don't know how to enable this or if it is even possible. These settings will simply snap the cursor to an edge.
    4. The settings I provided only enable snapping to edges. If you are wanting to snap to vertices or centerlines, you'll to update the gravityType string.
    5. The layers must be selectable for snapping to work.

    I hope this helps.

    Derek

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