Add a new Coordinate Reference System

To add a Coordinate Reference System, first obtain the EPSG code of the area from spatialreference.org This will also give you the bounding points (minimum and maximum X and Y coordinates)

Note: EPSG is a globally recognised dataset of coordinate references. Cadcorp SIS WebMap comes pre-loaded with these popular EPSG codes.

27700	British National Grid
4326	World
3857	World (used in rendering map tiles for Bing and Google Maps)
25832	Europe
31466	Germany (Gauss-Krüger zone 2)
31467	Germany (Gauss-Krüger zone 3)
29902	Ireland
28355, 28354, 28353, 28352, 28351, 28350	Australia
7856	Australia GDA2020
31277	Serbia MGI Balkans Zone 7
32616	Mexico UTM 16N
28992	Netherlands Amersfoort RD New
277002020	Specifically for use with the OS Maps API from the OS Data Hub. Use this CRS when defining the WMTS provided by the OS Maps API; this  CRS covers an area beyond the defined extents of British National Grid.
28356	GDA 94 Zone 56

To add any other area (for example France) fill the fields as below and click Add.

Add the relevant Proj4js files

1. After adding the new CRS, download the relevant Proj4js file for the EPSG code from www.spatialreference.org and add it to the defs folder of the installation.
2. Rename the file to EPSG1234.js where the number is the EPSG code of the CRS (e.g EPSG2154.js would be used for RGF93/Lambert-93).

Edit a Coordinate Reference System

Click Edit to display the details for the Coordinate Reference System. Start typing inside the fields to edit any of the values.

Note: Axis order is usually longitude/latitude with EPSG standards. Check the Reverse Axis box to change the order to be read from Easting to Northing.

Remove a Coordinate Reference System

Click Remove to delete any Coordinate Reference System.

You can delete only reference sysems that you have added. Pre-loaded CRS cannot be deleted.

---