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Where do I find the 'lot' start rule?

03-17-2016 05:34 AM
New Contributor

I am trying to extrude some buildings from Digimap and I have been reading the instructions on how to do this. However, I cannot seem to assign a start rule to my individual buildings as I cannot find the 'Lot' start rule in the rule packages on my computer. Is there anywhere I could find this?

Thank you in advance for the help!


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Esri Regular Contributor

Hello Amber,

In the CityEngine, buildings are described using the CGA grammar. A CGA rule file consists of several rules that define how the actual building geometry is created. A CGA rule file is usually assigned to a shape (e.g., a lot or a street etc.). One of the rules defined in the file is then chosen to be the shape's start rule, i.e., generation will start with this rule.

So for example: The rule file would be building.cga and the start rule is a rule named Lot within this file.

For further information, please refer the CityEngine help on Rule Files

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