How to determine the direction of the streets through CGA rule

[hadiyousefi]

How can I specify the direction of the streets through cga rule? . very thanks

[plfontes]

Have you had a look at the geometry.angle function?

https://doc.arcgis.com/en/cityengine/2019.1/cga/cga-geometry-function.htm#ESRI_SECTION1_0564F7E911B9... 

Hope this helps.

Cheers