HERE Map Content - Schema
HERE Map Content Developer's Guide

# Prism

## Message Summary

message Prism

A three-dimensional solid with a polygonal base, ground clearance, and top height.

Include: geometry.proto

## Properties

Field Type Label Description
polygon Polygon

The polygon that make up the Prism. Required.

height​_​clearance double

The height of the prism in meters (can be from ground or from ground_clearance, if defined). Required.

ground​_​clearance double

The ground clearance of the prism in meters above ground level. Required. A value of 0 indicates that the base of the prism is at ground level. For 3D buildings, ground_clearance is only published for buildings with skyways,etc.[Ex.Petrona towers,burzKhalifa]. The ground clearance, then means the height above ground at which the structure starts.