Data Classes¶

Overview¶

The DTCC Data Model is implemented as Python dataclasses within the DTCC Python package. In addition, the model is implemented in Protobuf to facilitate data exchange over the web and across different programming languages.

Objects¶

Base class fo all city objects:

Class	Description
Object	Base class for all city objects.

Specific city object classes:

Class	Description
Building	Represents a building in a city.
BuildingPart	Represents a component part of a building.
City	Top-level container representing a city model.
CityObject	Generic object for miscellaneous city elements.
Landuse	Represents land use classifications.
RoadNetwork	Represents a network of roads.
Terrain	Represents the terrain or ground in a city.

Geometries¶

Base class and utility classes:

Class	Description
Geometry	Base class for all geometry representations.
Bounds	Represents spatial boundaries and dimensions.
Transform	Represents an affine transformation.

Specific geometry classes:

Class	Description
Grid	Structured 2D grid representation.
LineString	Represents a line defined by a sequence of points.
Mesh	Unstructured triangular mesh representation.
MultiLineString	Composite of multiple line strings.
MultiSurface	Composite of multiple surface geometries.
PointCloud	Collection of points in 3D space.
Polygon	Represents a polygon, potentially with holes.
Surface	Represents a planar surface in 3D.
VolumeGrid	Structured 3D grid (hexahedral) representation.
VolumeMesh	Unstructured tetrahedral mesh representation.

Values¶

Class	Description
Field	Represents scalar or vector fields on geometries.
Raster	Represents grid-based raster data with georeference.

For more detailed documentation, please refer to the generated API reference pages.