topic Can the sun position azimuth and elevation be set with Python? in ArcGIS CityEngine Questions

Can the sun position azimuth and elevation be set with Python?

BrianMcAuslan — Wed, 05 Oct 2016 08:43:27 GMT

Title says it all. Thx

Edit

Note I'm not trying to calculate these values I want to assign them to the city engine environment settings. Idea is to set up a script as below.

assign sun position
set position by bookmark
snapshot
layer off.
layer on
snapshot
etc

set position bookmark
etc

Set new sun position
etc

Cheers

Re: Can the sun position azimuth and elevation be set with Python?

DanPatterson_Retired — Wed, 05 Oct 2016 09:58:53 GMT

@nothing builtin but there are tons of libraries

Pysolar: staring directly at the sun since 2007 — Pysolar 0.7 documentation

sunpos 1.1 : Python Package Index

astral 0.7.4 : Python Package Index

I could provide more, but I assume you have ruled out using externals

Re: Can the sun position azimuth and elevation be set with Python?

BrianMcAuslan — Wed, 05 Oct 2016 10:38:49 GMT

Hi Dan, thanks for your reply. I'm not trying to calculate these values I want to assign them to the city engine environment settings. Idea is to set up a script as below.

assign sun position

set position by bookmark

snapshot

layer off.

layer on

snapshot

etc

set position bookmark

etc

Set new sun position

etc

Cheers

Re: Can the sun position azimuth and elevation be set with Python?

DanPatterson_Retired — Wed, 05 Oct 2016 10:46:10 GMT

ok... I don't know what CE has for python methods and functions or properties, but certainly not within arcmap and arcpy. I hate to send you back to troll through the help documentation but... The only mention of 'azimuth' was under 'light' for setting light source... but not direct mention of python

Re: Can the sun position azimuth and elevation be set with Python?

ThomasFuchs — Wed, 05 Oct 2016 14:07:16 GMT

Hello Brian,

Sorry to inform you, that the sun can't be set via python.

The CityEngine team is aware of this missing feature.

I've added your request.

Re: Can the sun position azimuth and elevation be set with Python?

BrianMcAuslan — Thu, 06 Oct 2016 06:38:57 GMT

Thanks for your replies.