So, it seems that the assumption that the map is equivalent to an aerial photograph taken from an aircraft, is faulty. Solving the system using a online tool, I get the result that the system has a unique solution with all 6 constants being 0. The remaining 6 points generate a system of 6 linear equations in A^2,B^2,C^2,AB,BC and CA. For this, I needed 8 known points (known parameters being their name, lat-long, and heights above sea level), one being my origin, and the second being a fixed reference point.
I have many other known points, so plugging them into the equation should give me values of the 4 constants. You basically set waypoints at landmarks like old roads, railroads and waterways to sync the old maps with google maps. Some words of warning are in order on folder. I downloaded the Maprika program so I could sync up my old historical maps with Google maps and it has worked well with helping me pinpoint old home sites. I end up with an equation directly relating the distance between the two points on the screen 2d representation, lets call it Ls, and the actual length in the landscape, L. It is a text file that can me viewed with any text editor such a notepad. The length between the two points on a 2d static representation of this image on this screen can be easily found in pixels, and the actual length of the line joining the two points, can be easily found, since I can calculate the distance between the two points with their lat-longs, and their heights above sea level. I multiply it by another constant K to account for the resizing of this length on a static 2d representation of this 3d image.
#MAPRIKA MAP DESIGNER PLUS#
Le packet dinstallation le plus récent disponible pèse 2.8 MB. Ce téléchargement a été vérifié par notre antivirus intégré, qui la certifié 100 sûr. Le fichier dinstallation du logiciel est habituellement : MaprikaMapDesigner.exe. I take two known points in the landscape, and using the equation for a line in 3d, I find the length of the projection of this line segment joining the two known points, on the plane. Obtenez gratuitement Maprika Map Designer 7.4 dans notre logithèque. I fix my origin at a point, with z=0 at sea level. I attempt to find the plane constants, using the known points. So, I assumed the plane perpendicular to the camera lens normal to be Ax+By+Cz-d=0. I assumed the map to be equivalent to an aerial photograph of the Swiss landscape, without any info about the altitude or other coordinates of the camera. For this, I tried an approach that seems to be largely failing. I wish to be able to pin any latitude longitude coordinate on the map, of course within the bounds of the landscape.
It contains a number of known points, the lat-longs of which can be easily found out using google maps.
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