topic Mapping shapes from attributes in ArcGIS CityEngine Questions

Mapping shapes from attributes

amamalalalalal — Thu, 21 Feb 2013 12:51:12 GMT

Hi,

I want to mapped my shapes with differents representations, for example, i have shapes "parklands" which is divided into "forest", "garden", "flowers" ...., and i want to mapped these diferent area with images
I am sorry if the question has been already posted, i didnt found answer.

Furthermore, how can i do a request to select models generated from a procedural rule?
For example i want to select all the tree defined by Palm with the height>10 m, and select the model 3d and not the initial shape.

Thanks a lot.

Re: Mapping shapes from attributes

MatthiasBuehler1 — Sat, 11 Dec 2021 15:08:36 GMT

Hi !

To map textures based on the zone attribute, initialize that object attribute in CGA, then use it in the texture call.

E.g.

@Range ("forest", "garden", "flowers")
attr myVegetationZone = "" # Point this to the object attribute !

Lot -->
    setupProjection(0, scope.xz, 5, 5)
    projectUV(0)
    texture ( fileRandom( "assets/folder/" + myVegetationZone  + "*jpg")

Selecting by attribute must be done via Python currently. You have CityEngine Advanced ?

What's the reason why you want to specifically select Models ?

Re: Mapping shapes from attributes

amamalalalalal — Thu, 28 Feb 2013 12:33:22 GMT

Hi,

Thanks for the code it works fine.
But if i want to mapped for example the roads is it possible to follow the line and rotate uv, maybe it better works with the street graphs? I have CE Advanced yes.

Thanks for the code it is very interesting
Aurelien

Re: Mapping shapes from attributes

MatthiasBuehler1 — Sat, 11 Dec 2021 15:08:38 GMT

you mean texturing street shapes so the texture follows the curvature ?

then you don't need the UV setup because all shapes produced by the 'Dynamic City Layouts' system already have UVs.

Street -->
    tileUV(0, ~5, ~5)
    texture("builtin:uvtest.png")