Latest Contributions by LR

‎05-18-2016

Now, any idea how to change the file path of each facade in bulk? Do you use rules? I usually bulk-process mine in Notepad++.

‎05-18-2016

I usually texture my roofs with the following rule, which textures them all using the basemap: RoofTextureFromBasemap --> setupProjection(0, world.xz, Map_Size_X, Map_Size_Z) set(material.colormap, Map_Path_Aerial) projectUV(0) translateUV(0, -Map_Offset_X/Map_Size_X, -Map_Offset_Z/Map_Size_Z) scaleUV(0,1,-1) However I need to use the buildings in ArcGIS Pro and it's causing some trouble: leaving the rule as-is/exporting it as RPK doesn't texture roofs properly in AGP - the offset and resolution seem to be off exporting the buildings in Collada Format and importing them in AGP removes the textures exporting a building to KML works and displays (flipped) in Google Earth, however AGP simply tells me the file "cannot be used" without additional info. It's also rather large. exporting them to GDB (multipatch) and importing them in AGP works, however the file size ends up huge - roughly 100 buildings result in almost 5GB, which I'm pretty sure is due to the basemap being saved completely for each feature Now to the actual question I clipped the basemap in ArcMap using the building footprints (see attached image) and would like to texture the roofs using the world-aligned clippings. I think I went through all possible projection setups and scope aligning available, is it even possible to use the textures this way?

‎05-17-2016

They represent R/G/B values, from 00-FF (= 0-255) in hexadecimals. You could also use 0-1, e. g. color(1,0,0) would be red.

‎05-11-2016

I'm using a CityEngine rule to texture building roofs in an area, using a single aerial photo. When I try to use the rule (exported as rpk with the aerial photo included) in AG Pro, the texture is being applied as far as I can tell, but not properly - it seems as if the same bit is being applied to every building. Since it's not possible to change the attributes of a procedural fill layer on a per-shape basis like in CE(?), does this mean that this texturing method can't be used in AGP? (The projection's the same and meter-based). Here's the relevant CGA: RoofTextureFromBasemap --> setupProjection(0, world.xz, Map_Size_X, Map_Size_Z) set(material.colormap, Map_Path_Aerial) projectUV(0) translateUV(0, -Map_Offset_X/Map_Size_X, -Map_Offset_Z/Map_Size_Z) scaleUV(0,1,-1) Screenshot(s), top CE, bottom AGP:

‎05-11-2016

*.rpk files are just renamed *.7z archives - you can open them with 7zip. If you're lucky you'll find a cga file, unless whoever made the rpk didn't include it (cgb = compiled cga).

‎04-28-2016

I'd like to use a GUI for some python scripts. Right now I'm using automation scripting to send commands to the pydev console to run imported scripts, which works somewhat. Unfortunately that requires changing the script every time I reopen CE because the Standard Widget Toolkit CE uses (?) assigns as far as I can see random IDs to the windows, meaning I can't use those for targeting - the windows unfortunately don't report any window title I could use either.

‎04-10-2016

I never got anything dynamic to work with importing rules within CGA. If you want some randomness you could try something like this: attr RN = rand(0,1) Lot --> case RN > 0 && RN <= 0.1: Rule1 case RN >0.1 && RN <= 0.2: Rule2 case RN >0.2 && RN <= 0.3: Rule3 else: Rule999 You either import all rules into the main one and randomly access one of them, or you combine all secondary rules into one, and put that case instruction in the secondary rule... or you mix both. I had some hangups when importing a "large" (~20) amount of complex rules, so maybe the second approach would be safer. Also since the rand() function is determined by the shape seed (which doesn't change until told to) you have to update it (⌂+, or ctrl+shift+g) to see changes.

‎04-08-2016

Unfortunately that doesn't work. Import paths are static. You could however use Python to write a specific CGA file for each shape (using its attributes, for example), save and assign it. Of course that leaves you with tons of CGA files.

‎04-08-2016

Compressing a PNG by using color indexing, for example. Or do only dimensions matter?

‎04-08-2016

Must be old code, that doesn't work anymore. It should be ~1: RollingStones.

‎04-07-2016

When you import the lines uncheck the graph options.

‎03-31-2016

This should help you get started: Lot --> #s(0,0,0) center(xyz) alignScopeToAxes(y) i("assets/3D_City_Design_Assets/Street_Construction/lamps/lamp.02.parallel.lod0.obj") #s('1,'1,'1) #r(0,40,0) center(xz) Mind the asset path!

‎03-31-2016

You have to define it properly in the rule too, i. e. height ="", not height = 0, because then the rule assumes it's a float and won't connect to your str object attribute.

‎03-31-2016

No idea then. Try making a new project, or maybe you can upload some sample data?

‎03-31-2016

Convert it to float: attr HEIGHT = "" Lot --> extrude(float(HEIGHT)) If you want to use a slider to adjust the height afterwards you can do this: @Hidden #optional attr HEIGHT = "" attr myHEIGHT = float(HEIGHT) Lot --> extrude(myHEIGHT)

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Date Last Visited	‎11-11-2020 02:23 AM

My Ideas

Latest Contributions by LR

Re: Facades still showing up black

Using world-aligned textures for roofs

Re: CityEngine Color Codes

Textures-from-basemap rule doesn't work in ArcGIS Pro

Re: Hello I am trying to get trees into City Engine using the Tutorial example from the ArcGIS Desktop 3D page: http://desktop.arcgis.com/en/3d/3d-cities/3d-city-base-layers/add-trees.htm. ?

Is it possible to expand the CE UI, or access its UI elements externally in a consistent way?

Re: How to correctly import a file, which is defined via the attributes?

Re: How to correctly import a file, which is defined via the attributes?

Does compressing files improve load/viewer performance?

Re: Weird CGA rule: How does this work?

Re: City Engine: Import Line datasets without them becoming a network.

Re: How can I create street light poles model in CityEngine (I have locations of light poles as a point vector shp)

Re: Extrude shapefile according to height attribute

Re: Extrude shapefile according to height attribute

Re: Extrude shapefile according to height attribute

How to export World Imagery WMS tiles?

Re: Using the first line from an Excel table as fi...

World Imagery (for Export) - can't create Tile Pac...

List by selection: no selected features are displa...

Re: CityEngine Color Codes