Empty tiles when using EPSG codes

On rare occasions you may see empty tiles on preview maps when incorporating WMS/WFS data. To avoid this, simply edit the BBOX axis.

1. Open crs.json in a software editor of your choice (this .json file can be found in your GeognoSIS installation folder: C:\Program Files\Cadcorp GeognoSIS 9\Apps\Manager)
2. The defs section lists the CRS entries included with default GeognoSIS installation.

3. Add your custom CRS definitions in the same format with the desired axis orientation added at the end.
   

   In this example, you can see the “neu” axis orientation added at the end:
   [ "EPSG:31277", "PROJCS[\"MGI / Balkans zone 7 (deprecated)\", GEOGCS[\"MGI\",DATUM[\"Militar_Geographische_Institute\", SPHEROID[\"Bessel 1841\",6377397.155,299.1528128,AUTHORITY[\"EPSG\",\"7004\"]], TOWGS84[577.326,90.129,463.919,5.137,1.474,5.297,2.4232], AUTHORITY[\"EPSG\",\"6312\"]],PRIMEM[\"Greenwich\",0, AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\", 0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]], AUTHORITY[\"EPSG\",\"4312\"]],PROJECTION[\"Transverse_Mercator\"], PARAMETER[\"latitude_of_origin\",0],PARAMETER[\"central_meridian\",21], PARAMETER[\"scale_factor\",0.9999],PARAMETER[\"false_easting\",7500000], PARAMETER[\"false_northing\",0],UNIT[\"metre\",1, AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"X\",NORTH],AXIS[\"Y\", EAST],AUTHORITY[\"EPSG\",\"31277\"]]", "neu" ]

4. Save and close the file.

See here for all possible values of the axis orientation