Coordinate system (WKT)
This article describes the definition and usage of WKT formatted strings in order to produce consistently georeferenced outputs.
For a detailed description of the WKT format including a list of the various fields, please refer to this documentation.
The information given in the WKT string defines the coordinate system your input data is given in (e.g. shape files, project coordinate system) and will also be attached to your output data (e.g. TIFF headers, point cloud headers). Specifying a different coordinate system than the input data is actually given in will not transform your output data into that system.
Mesh outputs: Cesium, lod_dae, lod_obj, slpk
Several mesh output formats that can be generated with SURE require you to specify a WKT coordinate system. These are: Cesium, lod_dae, lod_obj and slpk. The lod_dae and lod_obj additionally require that the "EPSG" field is specified within the "PROJCS" field of the WKT string.
Inconsistent coordinate system definition
When using shape file inputs (e.g. area shapes for Area / ROI definition), make sure that the shape files are defined within the same coordinate system that is specified for your project:
- If two different global systems are defined, an error message will be displayed and the project cannot be processed.
- If two different systems are defined, where one system is either undefined or defined as "Local System" and the other one is a global system, SURE will display a warning message. However, processing will be continued using the WKT information specified as project coordinate system.