Latest Contributions by BenLeslie1

I agree tutorial data are not easy to find on-line.  Here's a link to an old version of what I believe you want to do: http://resources.arcgis.com/en/help/pdf/cityengine/10.2/tutorial_7_facade_modeling.pdf A newer version I could not see, I think maybe you get the option to download them when you install a trial version of the product. ... View more

I can't get fileRandom to work to assign random textures.  This is the way I want to do it: attr txtIdent = "" attr txtPath = "images/New Textures_test/" attr txtExt = ".jpg" buildingSide--> case txtIdent == "": setupProjection(0, scope.xy, '1, '1) texture(fileRandom(txtPath+"*"+txtExt) projectUV(0) else: texture(txtPath+txtIdent+txtExt) but I have also tried like this, assigning the random file to a constant first as per tutorial 7 const myRandomTxt= fileRandom("images/New Textures_test/*.jpg") attr txtIdent = "" attr txtPath = "images/New Textures_test/" attr txtExt = ".jpg" buildingSide--> case txtIdent == "": setupProjection(0, scope.xy, '1, '1) texture(myRandomTxt) ... I tried moving the * around and including more and less of the file name but I get nothing in return.  And the textures work if I assign a txtIdent value. ... View more

Hi Matt, I'm afraid I don't understand - but it's possible I didn't explain the problem very well; let me have another go: I want to position lights on the top of large buildings, but these buildings could actually be draw as several small buildings because they have different heights.  See attached image - let's say I want lights on any building longer than 50m and each of those red or blue blocks are 20m in length.  I want CityEngine to somehow recognise that the blue blocks form a 60m building and put lights on it. [ATTACH=CONFIG]29966[/ATTACH] If I created a "buildingName" attribute and gave all the blue blocks a common name, could I somehow use that to make CE recognise they are all one building? Thanks Ben ... View more

If you're able to edit the alpha channel of your tiff and set the no data part to transparent City Engine will display it as white which you may find preferable to black (still not transparent though). Or if you're editing the image you could just paint the no-data part white, or green if it's likely to be grass. ... View more

Well, I can make it work but I'm not any clearer on what is causing the problem - it feels like I have to teach CE how to read my rule file by showing it the file in bite sized pieces. As per my first post - if I start CE and try to export using the whole rule file it takes very very long time (it took ~6hours to export 1 building) However, if I comment-out 3/4 of the rule, save all and generate models, then comment-out 1/2, save all and generate models, then comment-out 1/4, save all and generate models, then use the whole rule file save all and generate, my model exports in 1.4 seconds.  If I do it like this it is very quick to export. I seem to have to do this commenting-out in at least 3 steps (1/3, 2/3, all) but doing it in quarters seems to be quicker. I will continue to try and specific problem with my code but at the moment I'm at a bit of a loss.  Could it be a caching/memory problem? ...and to answer you questions: no error entries exporting to collada I'm using 25 materials (but I have various case statements that allow for up to 125 different materials) 3144 polygons ... View more

Ah I see, I have to zip it. ... View more

Is it possible to upload a geodatabase to the forum - I can't see how to do it? Anyway I'm just testing the procedure so there is no proper data but these are the steps I have done: 1.  Draw a line 2.  Use Construct points to place points along the line. 3.  Set up a Representation on the line feature that follows the direction of the line. 4.  Set up a Representation on the point feature. 5.  Use Align Marker to Stoke or Fill so the representation on the point feature also follows the direction of the line (or that is the idea anyway). What I ultimately want to do is: a) Draw a line. b) Add points along the line. c) Rotate the points so they follow the line. d) Copy the rotation value to a feature attribute so it can be read in another program. ... View more

Thanks, maybe I misunderstand what you mean but I don't think that explains my problem because the line I have drawn is a single contiunous line and yet some of the points orientate at 180 degrees to one another.  Even looking at the underlying direction of each segment it doesn't seem to explain the discrepancy in the orientation. ... View more

I'm trying to do something similar except I want to create points at certain intervals along the line, then orientate the point to the line and if possible copy the orientation value into an attribute of the point. I am using representations to orientate the point symbol to the line however I'm getting some unexpected results - see attached some symbols are at 180degrees to the others - how can I correct this? [ATTACH=CONFIG]28739[/ATTACH] And anyone know if it is possible to copy the rotation value into an attribute of the point - not sure where to start on that bit? ... View more