Latest Contributions by ThomasFuchs

Please Note: The "EFFECTIVE REGULATIONS" on a parcel are the defined by Zoning + Overlays + Parcel overrides. Zoning regulation management—ArcGIS Urban | Documentation ArcGIS Urban integration—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 @ChrisKo3  Thanks for reaching out with your question! That's a tricky one, indeed. When dealing with such challenges, you could gradually increase the Segment Width by partitioning the segment. In case of asymmetric lane distributions, as in this example, also adjust the Segment Offset. To smoothen out the transition in the Joint Nodes, set the Curb Radius to the max value of 10.   ... View more

Thank you @romainjanil for bringing up this topic.  You want to have more control over the triangulation algorithm that is used for generating models. So far there are no plans to offer this. But, the upcoming release of CityEngine 2025.0 comes with many improvements for the boolean 3D operations, including better cleanup of the resulting shapes. This also affects the triangulation. The triangulation of Initial Shapes for rendering in the CE viewport is not the same as the triangulation used for creating models. If there are differences, it's recommended to hide the Initial Shapes. Can you please give more insights, why you need to apply a specific triangulation algorithm for generating Models? ... View more

Hello @JackCurran1  Have you tried to adjusted the base colour in 3ds Max  areal image texture like this: color_new = pow(color_old, 1 / 2.2) It will impact the multiplier on the material in CityEngine. If this doesn't give the expected result, it would be good to analyze the aerial imagery texture. ... View more

Thanks for your feedback. Great that you managed to resolve the your question. To make my example rule work, the parcel shape requires the attribute edgeattr/orientations set by the Compute Edge Attributes tool. ... View more

As an example, you can first obtain the orientations of a parcel shape with the Compute Edge Attributes tool. Then, the following rule lets you define a maximum building coverage ratio and setback distances per side. In case the maximum coverage is smaller then the remainder of the setbackPerEdge operation, the front setback is increased by the setbackToArea operation (dark blue area).   version "2024.1" const lotArea = geometry.area @Description("Maximum ratio of footprint to parcel area") @Percent attr area_ratio = 0.5 @Description("Minimum street setback") @Distance @Range(min=0, max=15) attr setback_front = 5 @Description("Excact side setback") @Distance @Range(min=0, max=15) attr setback_side = 10 @Description("Excact rear setback") @Distance @Range(min=0, max=15) attr setback_rear = 15 dist(orientation) = case orientation == "front" : setback_front case orientation == "side" : setback_side case orientation == "rear" : setback_rear else : 0 @StartRule SetbackPerEdge --> setbackPerEdge( dist( edgeAttr.getString("orientations") ) ) { edgeAttr.getString("orientations") == "front" = Grey | edgeAttr.getString("orientations") == "side" = Yellow | edgeAttr.getString("orientations") == "rear" = Green | remainder = SetbackToArea } SetbackToArea --> setbackToArea(lotArea * area_ratio) { edgeAttr.getString("orientations") == "front" = Blue | remainder = extrude(10) Cyan }   ... View more

Hi @Neri12 , Welcome to the ArcGIS CityEngine Community. 😊 To give you an advice, it would be very helpful, to have a screenshot and some snippets of your CGA code.  General information: the setbackToArea operation allows you to define the built up area vs. the free part ratio of a lot.  the setbackPerEdge operation allows you to define a setback distance per edge. ... View more

Hi @KennethLindhardt1  Have you tried using CGA to report the spherical latitude/longitude coordinates (WGS84) of the scope's origin with the getGeoCoord function? Tutorial 12: Scripted report export—ArcGIS CityEngine Resources | Documentation then shows you how to write out a file with positioning info for each exported Model. ... View more

Hello @biaozeng  Your observation is correct. When using 'Menu > Shapes > Update Seed' <ctrl+shift+G> in some cases negative numbers are generated. For the CGA seedian shape attribute the values are restricted to the range [0, 714024]. Numbers outside this range are mapped into it. ... View more

You can rewrite the rule to get a sequence of the largest faces like that:   Generate --> comp(f) { front = fa1 } fa1 --> comp(f) { largestIndex : color(1,0,1) fa1. | all = fa2 } fa2 --> comp(f) { largestIndex : color(1,1,0) fa2. | all = fa3 } fa3 --> comp(f) { largestIndex : color(0,1,1) fa3. | all : faRemaining. }   ... View more