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How to modify or manipulate bBox in layout (Virtuoso, IC 5141 USR4)

Dennis Faber

Hello together,

I have a problem with bBox in a layout. In other words. It bothers me that the bBox is bigger then my layout.

I don't have any others invisibel layers there. no changedLayer or something. This sometimes happens when I add a layout as an instance in another layout. A solution with instance layer is not suitable for me. Is there any way to modify or reset the bounding box coordinates with SKILL? I am not familiar with SKILL!

 Kind regars, Dennis

Parents

  • We have seen this problem as well. We see the problem primarily when we are working with mosaics and using edit-in-place. We opened a ticket many years ago on this, but it was not fixed in any of the 5.1.41 releases. The case we saw was when we edit-in-place into a mosaic and make some edits, the bBox will grow to the furthest extent of the edits, even if no data remains there when the edit is done. To test this out, you can EIP into a mosaic at least 2 levels down in your hierarchy. Do your EIP into one of the outside rows or columns. Move a shape a good distance outside of the current bBox and then move it back. Save the cell and pop up one level. You'll see that the cell extents remain too large. The current cell will also be affected by those cell extents. There may be other things that cause this extents bug but I am not aware of them.

    We did find an acceptable fix for this problem. If you draw a rectangle larger than everything in the current cell and then delete it and save the cell, the extents will be fixed. We put this "Fix Cell Extents" procedure into a menu and it fixes the problem for us.

    Derek

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  • We have seen this problem as well. We see the problem primarily when we are working with mosaics and using edit-in-place. We opened a ticket many years ago on this, but it was not fixed in any of the 5.1.41 releases. The case we saw was when we edit-in-place into a mosaic and make some edits, the bBox will grow to the furthest extent of the edits, even if no data remains there when the edit is done. To test this out, you can EIP into a mosaic at least 2 levels down in your hierarchy. Do your EIP into one of the outside rows or columns. Move a shape a good distance outside of the current bBox and then move it back. Save the cell and pop up one level. You'll see that the cell extents remain too large. The current cell will also be affected by those cell extents. There may be other things that cause this extents bug but I am not aware of them.

    We did find an acceptable fix for this problem. If you draw a rectangle larger than everything in the current cell and then delete it and save the cell, the extents will be fixed. We put this "Fix Cell Extents" procedure into a menu and it fixes the problem for us.

    Derek

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