Transferring coordinates to vector-graphics to populate maps.
by Michael Uplawski from LinuxQuestions.org on (#50EBE)
Tell me where I am having a problem.
Several maps in SVG format are available; only the borderlines of geographical regions are given on a dedicated layer.
To populate a map with ... locations, I copy the pertinent section of an openstreetmap map, put it on a temporary layer and design on a third one the element that is missing in my own map. This is a chore!
My dream is this:
*) pointing on my empty map at two distinct, somewhat distant locations.
*) registering the coordinates of these two points as references.
*) translating geographical coordinates to coordinates on my own map, based on the two reference points and the calculations that the three points allow.
I have not yet any code as I am refraining from starting this utility before I know what I am doing. For the time, I have a bad feeling that something is missing in my concept.


Several maps in SVG format are available; only the borderlines of geographical regions are given on a dedicated layer.
To populate a map with ... locations, I copy the pertinent section of an openstreetmap map, put it on a temporary layer and design on a third one the element that is missing in my own map. This is a chore!
My dream is this:
*) pointing on my empty map at two distinct, somewhat distant locations.
*) registering the coordinates of these two points as references.
*) translating geographical coordinates to coordinates on my own map, based on the two reference points and the calculations that the three points allow.
I have not yet any code as I am refraining from starting this utility before I know what I am doing. For the time, I have a bad feeling that something is missing in my concept.