Custom Geometry: Difference between revisions
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[[File:San_francisco.png|thumb|300px|right|Custom geometries of San Francisco in the {{software}}]] | [[File:San_francisco.png|thumb|300px|right|Custom geometries of San Francisco in the {{software}}]] | ||
[[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 {{software}}. During a [[Session#Session types|single-, multi- or test-session]], custom geometries | [[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 {{software}}. During a [[Session#Session types|single-, multi- or test-session]], the shape of custom geometries cannot be altered by users. | ||
==Representation== | ==Representation== | ||
Custom geometry | Custom geometry stores data in a float array. The data stored is a set of triangle definitions: | ||
3 Vertex definitions: | 3 Vertex definitions: | ||
* 3 floats representing a vertex coordinate: (x, y, z) | * 3 floats representing a vertex coordinate: (x, y, z) | ||
| Line 16: | Line 16: | ||
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. | 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. | ||
These two points make sure that a set of lined up Buildings can be represented by one Custom Geometry, with one Building being the primary | These two points make sure that a set of lined up Buildings can be represented by one Custom Geometry, with one Building being the primary reference and the other buildings not showing the default 3D Model. | ||
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. | 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. | ||
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===Geometry Color and Offset=== | ===Geometry Color and Offset=== | ||
Custom Geometries in the [[3D Visualization]] can be given an override color using the Building Attribute: [[Geometry_color_(Building_Attribute)|GEOMETRY_COLOR]] | Custom Geometries in the [[3D Visualization]] can be given an override color using the Building Attribute: [[Geometry_color_(Building_Attribute)|GEOMETRY_COLOR]] | ||
Additionally, the {{datum}} (height) of the Custom Geometry might not be correct. This can also be | Additionally, the {{datum}} (height) of the Custom Geometry might not be correct. This can also be overridden using the [[Height offset (Function Value)]]. | ||
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* [[IFC]] | * [[IFC]] | ||
* [[I3S]] | * [[I3S]] | ||
* [[Building]] | * [[Building]] | ||
* [[Building visualization]] | * [[Building visualization]] | ||
Revision as of 11:49, 6 July 2026
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.
These two points make sure that a set of lined up Buildings can be represented by one Custom Geometry, with one Building being the primary reference and the other buildings not showing the default 3D Model.
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
API Endpoints
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
- Net Cluster • Net Function • Net Line • Net Load • Net Node • Net Setting
- Editor