Regarding coordinate system translations #287
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mwpowellhtx
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Actually regarding my discussion, here I was ready to possibly jump into some linear algebra... But it may not be necessary, assuming what the simple |
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At root have what is in effect a Cartography problem, fictional map, let's say, in two dimensional space. Chiefly I have a world coordinate system some 1.5M in X-Y dimensions, that is a hard fact, maintained in
decimal
for precision to centimeters on the ground so to speak. The challenge is to map these coordinates into the SKIA Bitmap Canvas euclidian space, as a function of the scaling between world and canvas resolution. Can apply views ports etc to sesctions, but this is neither here nor there. If the scaling translation problem is inaccurate mapping from world:canvas, the rest is fairly meaningless and can (does) lead to inaccuracies. The naive approach simply applying some scaling coefficients, is a good start, but like I said, I think this is problem higher order math than that, probably involving some matrix or linear algebra, which I am not opposed to, but I wonder if there are efforts under way to conceive of this issue fromSS.E
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