create O-Blocks

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04-17-2012 08:24 PM
JesseGould
New Contributor
I am trying to create O-block shaped lots.  Basically I am drawing shapes in city engine however i need basically a donut shape.  Is there a way to boolean out a shape within a shape.?

thanks
jesse
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MatthiasBuehler1
Frequent Contributor II
1] if subdividing a Block with the Dynamic City Layouts : use the Block Subdivision Type 'Offset Subdivision'

2] if you try doing this via CGA : check the CGA operation called shapeO() in Help > CGA Operations Reference

3] note that CGA does not yet support polygons with holes, thus shapeO creates a 'diagonal line' to split the otherwise closed topology of the shape open.
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