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  3. Controlling visibility of individual shapes

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Controlling visibility of individual shapes

Fredda
Fredda over 5 years ago

Coming from Altium I'm used to the concept of "Shelving Polygons", which in Allegro language would translate to "Hiding Shapes". In Altium you have a polygon manager where each polygon is listed and where you can control the visibility of each polygon as well as some other parameters. Is there anything similar in Allegro?

I really, really want to control the visibility of individual shapes. I know how to set transparency of shapes, hide all shapes or just hide shapes on a particular layer, but haven't found a way to control individual shapes.

/F

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  • Fredda
    Fredda over 5 years ago

    I usually create a GND-shape covering the entire top plane. However, when routing tracks on the top layer I don't want to be disturbed by this shape. I can of course hide the shape, but that hides all other shapes on the top layer as well, which I don't want. Judging by the lack of answers, I guess there's nothing like a shape manager in Allegro? Where you can control visibility and also the priority by which the shapes are filled.

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  • CadAce2K
    CadAce2K over 5 years ago in reply to Fredda

    Here's my process - use it wisely

    1) I leave my pours until routing is mostly complete. Then I do my internal GND pours and work my way out.

    2) If I need to rework a large portion of routing, I'll move the GND plane(s) off the board. It's EXTREMELY easy, and I jot down the x or y that I move them off. When complete I move them back onboard.

    3) If I'm working from another designer's file I'll set the pour transparency really low and just ignore the pour changes when routing to complete the changes.

    I don't find this to be very taxing. Good day.

    Or you can go into the User Preferences/Display/Shape_Fill and see if there's a parameter you prefer more.  :)

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  • Fredda
    Fredda over 5 years ago in reply to CadAce2K

    Thanks. Moving the shapes out of the way seems to be the way people are handling this. I was talking to an Allegro long time user and he did the same as you. Move ix iy...

    I'm impressed (and frustrated) by the endless options you have in Allegro and thus a little surprised that a central layout element is lacking some basic editing options. Maybe a SKILL script will do it, but I don't get paid for writing those... So Cadence, feature request!!

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  • CadAce2K
    CadAce2K over 5 years ago in reply to Fredda

    Don't get frustrated Fredda. FInd the options that work for you and continue to learn. There's probably a whole lot more you haven't stumbled across yet. And, as always, ask questions to this blog. There's YEARS of experience online available to help out. I've lived with many 'shape' enhancements so far, and will see more in the future. But, take note, Cadence has a FULL toolset FRONT <--> BACK, simulation, SIP packaging, etc. so 'we' don't expect them to fancy up to Altium's niceties. Things like 'shape handling' are minuscule to for old time users compared to other features we're still coaxing Cadence to implement (e.g. SKILL has been around for ages! But it took Cadence forever to implement  them into the tool. Live and learn, right?). Cadence is continuing to battle Mentor for tool capabilities, but they do feel the ankle-biting of the Altium tool nipping at them. But that's only for the PCB/Schematic side of things (a very small part of their portfolios). ASK ON! Good day.

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  • CadAce2K
    CadAce2K over 5 years ago in reply to Fredda

    Don't get frustrated Fredda. FInd the options that work for you and continue to learn. There's probably a whole lot more you haven't stumbled across yet. And, as always, ask questions to this blog. There's YEARS of experience online available to help out. I've lived with many 'shape' enhancements so far, and will see more in the future. But, take note, Cadence has a FULL toolset FRONT <--> BACK, simulation, SIP packaging, etc. so 'we' don't expect them to fancy up to Altium's niceties. Things like 'shape handling' are minuscule to for old time users compared to other features we're still coaxing Cadence to implement (e.g. SKILL has been around for ages! But it took Cadence forever to implement  them into the tool. Live and learn, right?). Cadence is continuing to battle Mentor for tool capabilities, but they do feel the ankle-biting of the Altium tool nipping at them. But that's only for the PCB/Schematic side of things (a very small part of their portfolios). ASK ON! Good day.

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