cartesian

Converting longitude/latitude to X/Y coordinate

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The big issue with plotting maps is that the spherical surface of the Earth cannot be conveniently converted into a flat representation. There are a bunch of different projections that attempt to resolve this. Mercator is one of the simplest: it assumes that lines of equal latitude are parallel horizontals, while lines of equal longitude … Read more

flip svg coordinate system

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I have done a lot of experimentation, and the only logical method is as follows: <g transform=”translate(0,400)”> <g transform=”scale(1,-1)”> Where 400 is the height of the image. What this does it move everything down so that the top of the image is now and the bottom of the image, then the scale operation flips the … Read more