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How to change the origin of the selection point when instantiating custom symbols

LuisGutierrez

Hi all,

I'm using IC6.1.7-64b.500.15

Maybe this is a silly question, but I haven't found a solution for this yet. I'm trying to instantiate a custom border sheet (but it happens with any symbol, really) and the origin of the instantiation is far away from the symbol itself (see screenshot). How can I edit this such that the symbol is handled from its bottom left corner when instantiated? Sometimes when doing a fit in the schematic I find random instances lying around because of this issue.

Regards,

Parents

  • Did you try opening the symbol (or sheet itself) and doing Edit->Origin to move the origin of that component to where it makes more sense?

    It's a bit odd why you have this problem though. You need to be aware that changing the origin of the component would affect any existing instantiations of the component/sheet.

    Andrew.

Reply

  • Did you try opening the symbol (or sheet itself) and doing Edit->Origin to move the origin of that component to where it makes more sense?

    It's a bit odd why you have this problem though. You need to be aware that changing the origin of the component would affect any existing instantiations of the component/sheet.

    Andrew.

Children
  • in reply to Andrew Beckett

    Hi Andrew,

    Thanks for the answer. I fixed it using edit > origin. Question: How is the origin first defined in a symbol? I simply created the custom border sheet and first time I tried to instantiate it was already being handled from afar. Maybe a skill script triggered at check and save of the symbol that locates the origin to the bottom left of the bounding box is possible?

    Regards,

  • in reply to LuisGutierrez

    Luis,

    The trouble is that people often don't have the coordinates or axes shown in the schematic/symbol editor. These can be enabled via the Options->Display Options form. This isn't normally an issue because people usually start symbols from an existing symbol or using the Create->CellView from CellView forms which do pick one of the pins to be the origin. I can only imagine that you must have deleted all the contents and started drawing in free space? Or accidentally moved everything by an offset? It's not a problem I hear users complaining about in general, so I think it must be related to however you've edited them (or possibly something odd in your environment - but this seems less likely).

    Whilst it would be possible to have a save trigger to update the origin automatically, I think that could be rather dangerous if ever you've intentionally moved the origin to a more desirable location; it would affect any existing placements.

    Regards,

    Andrew.

  • in reply to Andrew Beckett

    Hi Andrew,

    Thanks for the comments and extra hints. Definitely it makes more sense to have the sort of freedom for the origin definition the way you indicate.

    Regards,

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