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Creating PCells with rounded shapes

Miguel V

Hello,

I'm trying to create a PCell with rounded or curved shapes.  I know how to create rectangles and polygons using the rodCreateRect() and rodCreatePolygon() methods, but I wanted to know if there is an easier way to create a ROD object with curves, instead of using rodCreatePolygon() with a list of dozens or hundreds of points. 

Thanks,

Miguel 

Parents
  • skillUser

    Hi Miguel,

    As far as I know the ROD functionality does not extend to non-rectlinear shapes.  The following functions are probably what you need:

    dbCreateEllipse(
    d_cellView
    txl_layerPurpose
    l_bBox
    )
    => d_ellipse / nil

    Creates an ellipse.

    dbCreateArc(
    d_cellView
    txl_layerPurpose
    l_ellipse_bBox
    l_arc_bBox
    )
    => d_arc / nil

    Creates an arc.

    There are also 'donut' shapes. Outside of these I don't know of other curved shapes you can create.

    Hope this helps!

    Lawrence.

Reply
  • skillUser

    Hi Miguel,

    As far as I know the ROD functionality does not extend to non-rectlinear shapes.  The following functions are probably what you need:

    dbCreateEllipse(
    d_cellView
    txl_layerPurpose
    l_bBox
    )
    => d_ellipse / nil

    Creates an ellipse.

    dbCreateArc(
    d_cellView
    txl_layerPurpose
    l_ellipse_bBox
    l_arc_bBox
    )
    => d_arc / nil

    Creates an arc.

    There are also 'donut' shapes. Outside of these I don't know of other curved shapes you can create.

    Hope this helps!

    Lawrence.

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