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Geometries in ArcGIS Reality Studio

You can optimize geospatial products by using geometries in the processing of reconstructions and alignments. The basic requirements for geometries in ArcGIS Reality Studio, the types of geometries that can be used, requirements specific to each geometry type, and their role in the reconstruction and alignment processing are described below.

Basic geometry requirements

All geometries must meet the following criteria:

  • The geometry is of type polygon and is stored as a feature class in a geodatabase or as a shapefile (.shp).

  • All polygons are contained in a single layer.

  • The geometry does not contain curved geometries.

  • The polygons do not have self-intersections or duplicated vertices.

  • The geometries have the same spatial reference as the other data used as input in a reconstruction or alignment.

There are three types of geometries with different purposes and requirements: regions of interest, water bodies, and corrections.

Region of interest geometries

Region of interest geometries define a particular region of interest. Specifying a region of interest geometry prevents the processing of unnecessary data, minimizing total processing time and required storage. Region of interest geometries can be used in alignments or reconstructions.

Water body geometries

Water bodies are challenging to reconstruct due to their reflectiveness, transparency, and nonstatic nature, which can result in sparse and noisy data generated within their extent.

Water body geometries delineate the border of water surfaces and are used in reconstruction processing to interpolate points within the enclosed areas based on the 3D coordinates of the geometry's polygon vertices. The result is a smooth and continuous surface made of synthetic data derived from interpolation.

Note:

Water body geometries must be 3D polygons, meaning all of their vertices must have a valid z-value.

When processing a reconstruction that includes water surfaces, you can improve the results by specifying Water Body Geometries and choosing their type. There are two types of Water Body Geometries:

  • Coarse: Polygons completely encompass the water bodies and may include objects on or near the water. Inside the polygons, Reality Studio adaptively reconstructs the water surface and any solid surfaces potentially included.

  • Precise: Polygons accurately delineate water bodies and exclude objects like bridges, piers, and boats. Inside the polygons, Reality Studio constrains the reconstructed water surface to the water body geometry.

Correction geometries

Correction geometries help the reconstruction of challenging surfaces such as glass buildings and heavily shadowed areas, which can result in imperfect surfaces.

The sparse and noisy data generated automatically is replaced by the smooth and continuous surface made of synthetic data derived from correction geometry.

Note:

If a correction geometry and a water body geometry overlap, the correction geometry has the highest priority to replace imperfect surfaces with more accurate synthetic data.

Define geometries

You can do the following using geometries: