Scott Turner

PROJ is changing the way it handles '+proj=ortho' in spec strings, as of version 7.2. Previously, that projection performed a spheroidal calculation, even with the WGS84 datum. With the change,...

### Steps to reproduce 1. Create a large map by import from an OpenStreetMap export. 2. Open the map with Mapper built with PROJ >= 7.2. 3. View geographic coordinates...

Increase precision of grivation for better OCAD import/export

4

This implements what was discussed for #1896, increasing the precision with which Mapper represents grivation, from 2 decimal places to 8. The basic change is an increase in the number...

Georeferencing dialog ideas

8

### Steps to reproduce 1. An existing map 1. Use the Georeferencing dialog to change its declination. 1. See a question, "Do you want to rotate the map content accordingly,...

PROJ is changing the way it handles '+proj=ortho' in spec strings, as of version 7.2. Previously, that projection performed a spheroidal calculation, even with the WGS84 datum. With the change,...

This change addresses the case described in #2080, in which a map was exported to an OCAD file format, and then when imported its map objects were offset from their...

Use WGS84 (G2139) as the geographic CRS

5

These changes replace the geographic CRS spec string "+proj=latlong +datum=WGS84" with "EPSG:9755" for most Georeferencing purposes. EPSG:9755 is code for the current realization (G2139) of WGS84. When creating a template...

Test positioning of GPS track in NAD 83 map

3

This is not a regular PR with potential source code for production. Consider it an example map if you wish. I hope it will be adopted for testing where NAD...

### Steps to reproduce 1. Initiate rotation or scaling of the map from the Map menu, or from the Georeferencing dialog by changing the declination or scale factor. 2. The...