Latest Contributions by ThomasFuchs

Hello @Tiwene_Roberts  Thanks for sharing your code snippet—it's awesome that you're diving in and learning by doing with CityEngine. I understand the challenge of exporting that inner parcel boundary as a GIS layer. I'll walk you through a straightforward solution below. When exporting a Model to FileGDB, it is not possible to only select certain faces of a Model. Therefore, all face geometries in the CGA code, that you do not want to export, have to be NILed. NIL operation—ArcGIS CityEngine Resources | Documentation // ----------------- // Outer parcel definition (optional visualization only) // ----------------- OuterParcel --> NIL // set(parcelType, "outer") // color("#99ccff") Then Export to the model to FileGDB and make sure to only export Models: Export FileGDB (Esri File Geodatabase)—ArcGIS CityEngine Resources | Documentation   ... View more

Hi @RidleySoudack  I'm excited to see you are leveraging CityEngine functionality to check for and handle conditional zoning regulations. This example rule for Parcel shapes shows how to work with the ZoneTypeID attribute obtained from in the scene's Zone Boundaries layer: version "2025.0" @Order(1) @Enum(valuesAttr=zoneTypeIDs,restricted=false) @DisplayName("Zone Type ID") attr ZoneTypeID = "" @Hidden attr zoneTypeIDs = getKeys(zoneTypeTable) @Order(2) @DisplayName("Zone Type Label") attr Zone_Type_Label = getValue( zoneTypeTable, ZoneTypeID, "Label") @Order(3) @Color @DisplayName("Zone Type Color") attr Zone_Type_Color = getValue( zoneTypeTable, ZoneTypeID, "Color") @Order(4) @DisplayName("Zone Type HeightMax") attr Zone_Type_HeightMax = float(getValue( zoneTypeTable, ZoneTypeID, "HeightMax")) @Order(0) @File @DisplayName("Zone Type Table") attr Zone_Type_Table = "data/Urban_for_CE_Database_View.csv" const zoneTypeTable = readStringTable(Zone_Type_Table) getKeys(table) = transpose(table[1:nRows(table) - 1, 0]) getValue(table, key, columnName) with( keysColumn := getKeys(table) rowIndex := findFirst(keysColumn, key) + 1 columnIndex := findFirst(table[0, 0:nColumns(table)], columnName) ) = case (rowIndex == 0) || (columnIndex == -1): "Error" else: table[rowIndex, columnIndex] @StartRule Parcel --> print(ZoneTypeID) print(Zone_Type_Label) color(Zone_Type_Color) extrude(Zone_Type_HeightMax)   Unlike the space type info, the zoning info doesn't get added to the project as a CSV when importing a plan form ArcGIS Urban. Here is what you can do to work with the zoning information: Find the ArcGIS Urban Database View of your plan in the portal contents. It contains a table named ZoneTypes   Export this ZoneTypes table to a CSV file and then download it Inside CityEngine, add the ZoneTypes CSV file to your project's data folder Now you can connect the rule attribute Zone_Type_Table to the downloaded ZoneTypes CSV file. To get the parcel's Zone Type information, simply connect the rule attribute ZoneTypeID to the matching attribute in the scene's Zone Boundaries layer: The final result should look like this: ... View more

Hello @bhusalshishir  Here is CGA code that creates a primitiveDisk and then uses the offset operation to hollow it out. Then the extrude operation gets applied on the annulus to form a culvert. Finally, the setNormals operation is used to set the normals of the inner and outer mantle to soft.   version "2024.1" @Description("Inner diameter") @Distance @Range(min=0.1, max=5) attr diameter = 1 @Description("Culvert length") @Distance @Range(min=0.1, max=20) attr length = 2 @Description("Wall thickness") @Distance @Range(min=0.1, max=1) attr thickness = 0.1 @Description("Number of subdivisions of the outer mantle") attr sides = min(128,max(16,floor(8*diameter)*4)) @StartRule Culvert --> Annulus Annulus --> primitiveDisk(sides, diameter+thickness) offset(-thickness) comp(f) { border = Extrude} Extrude --> extrude (length) comp(f) { side = setNormals(soft) Culvert. | all : Culvert. }     ... View more

Hello @josegudalupemeridajardinez  Thanks for the question. Just select a CGA Model (or any static model). Then to create .cgamat files you can use the CityEngine CGA Material Encoder option in the File > Export Models... dialog. Export a model—ArcGIS CityEngine Resources | Documentation The material descriptions of a CGA model are collected and written into individual subdirectories. Each subdirectory contains all the material—including the used textures—which can be copied into a folder of assets, for example. The name of the subdirectory and the .cgamat file is the material.name attribute but is made unique if there are several materials with the same name. The <matName>.cgamat file is in CSV format, as is the result of the CGA function: getMaterial(used, changed). .cgamat files are simple plain text file contain name of material attributes and its value seperated by a comma: metallic,0 roughness,1 colormap,Textures/Grass_Dry_10x10_Brown_Color.jpg colormap.su,0.1 colormap.sv,0.1 normalmap,Textures/Grass_10x10_Normal.jpg normalmap.rw, 0 normalmap.su,0.1 normalmap.sv,0.1 ... Note: You can also find some material files in the ESRI.lib under /assets/Materials. Only materials stored here are shown in the Material Browser. ESRI.lib—ArcGIS CityEngine Resources | Documentation To apply a .cgamat file on a shape, you need to set the path first. Then use the setMaterial operation—ArcGIS CityEngine Resources | Documentation and project the material on every face:   version "2024.1" @MaterialFile attr cgaMat = "/ESRI.lib/assets/Materials/Generic/Wood/Wood_Standard_10x10.cgamat" @StartRule SetMaterial --> setMaterial( readMaterial(cgaMat) ) comp(f) { all : setupProjection(0, scope.xy, 1, 1) projectUV(0) Material. }   ... View more

Hello @biaozeng  Thank you for this interesting question! Here are some CGA helper functions that will give you the index of the face with the largest area:   version "2024.1" sizes = comp(f){ all : geometry.area() } indices = sortIndices(sizes) largestIndex = indices[size(indices)-1] @StartRule // Apply on a shape with multiple front faces Generate --> comp(f) { front = comp(f) { largestIndex : color(1,0,1) fa. } }   ... View more