Custom Geometry

Custom geometries of San Francisco in the Tygron Platform

Custom Geometry is an item that stores 3-dimensional models (3D Models), which are coordinate-based representations of Building surfaces. Optionally, these surfaces can be textured. This representation can be visualized in the 3D Visualization as an alternative to the default 3-dimensional representation of buildings generated by the Tygron Platform. During a single-, multi- or test-session, the shape of custom geometries cannot be altered by users.

Representation

Custom geometry stores data in a float array. The data stored is a set of triangle definitions: 3 Vertex definitions:

• 3 floats representing a vertex coordinate: (x, y, z)
• 2 floats representing texture coordinates: (tx, ty)

and 1 normal definition:

• 3 floats representing normal coordinates: (nx, ny, nz)

Together 18 float values forming a triangle.

3D Model of Buildings

Buildings can link to one or more Custom Geometries using CGLinks. CGLinks store the id of the Custom Geometry Item, as well as whether it is the primary Building referencing this Custom Geometry. Custom Geometries are only placed for buildings in the 3D Visualization when that building is the primary referencer.

If a Building references any Custom Geometry, the default 3D Model of the building, that is mostly determined by its function, will not be visible.

This ensures adjacent buildings can share one Custom Geometry; only the primary building is visualized while others hide their default models.

Adjusting any visual property of the building will result in the removal of the Custom Geometry from the Building, even if it is not the primary referencer. This makes sure that adjustments made to the Building are clear.

Geometry Color and Offset

Custom Geometries in the 3D Visualization can be given an override color using the Building Attribute: GEOMETRY_COLOR Additionally, the datum (height) of the Custom Geometry might not be correct. This can also be overridden using the Height offset (Function Value).

Notes

• Buildings placed by activated Measures can also reference to Custom Geometries.

How-to's

• How to import 3D BAG data
• How to import i3s scene layer in new project
• How to import 3D Models from ArcGIS Online

See also

• 3D BAG/CityGML
• IFC
• I3S
• Building
• Building visualization
• 3D Visualization

API Endpoints

• Api session items customgeometries
• Api session event editor customgeometry

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Geo Data

Project Sources

Open data sources • GeoShare • Custom Geometry

Web

WFS • WMS • WCS • CSW • Map service

File

IFC • CityGML • DXF • GeoPackage • GeoJSON • GeoTIFF • ONNX • SLPK • QML

Import

Vector • Raster • 2D spatial plan • 3D model (IFC, I3S, CityGML)

Export

Vector • Raster • GeoShare Viewer

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Current Situation

Current Situation

Buildings • Terrains • Administrative • Areas • Networks • Overlays • Indicators • Panels • Globals •  Queries • Geo Import

Buildings

Function • Function Override • Section • Category • Custom Geometry • Category Value • Function Value • Function Values Table • List of Functions

Traffic

Unit Type • Unit Data • Unit Data Override

Terrain

Height sector • Elevation model • Elevation GeoTIFF • Elevation Grid Overlay • Ground Price • Terrain Type • Terrain Type Override • List of Terrain Types

Administrative

Neighborhood • Zone • Permission Popup • Plot • Zip Code

Queries

Query Tool • Measurement

Geo Import

Source • GeoShare

Network

Net Cluster • Net Function • Net Line • Net Load • Net Node • Net Setting

Editor

Current Situation • Future Design • Multi Scenario • Tools • Community