URBANopt GeoJSON Gem
The URBANopt GeoJSON Gem is an OpenStudio Extension Gem with functionality to translate information in a GeoJSON format to energy model inputs. GeoJSON is a commonly used format for describing geospatial data related to the built environment.
A JSON schema for the GeoJSON format is available at geojson schema.
The main content in a GeoJSON file is a list of Features with associated geometry in a geospatial coordinate system - commonly the EPSG:4326 (WGS 84) coordinate system.
The URBANopt GeoJSON Gem places additional restrictions on Feature geometry and requires specific non-geometric properties that are not present in standard GeoJSON files and are not described in the standard GeoJSON schema.
The sub-schemas for the properties supported or required for each type of Feature in URBANopt GeoJSON are shown under Schemas.
The current functionalities of the URBANopt GeoJSON gem include:
- Validate a GeoJSON file.
- Calculate available roof area for photovoltaics.
- Translate Building Feature to an OpenStudio Model.
- Translate Building Feature to OpenStudio Shading Objects.
The Rdocs contain more information about the URBANopt GeoJSON Gem architecture.