The logic by which the markers are attached looks something like this:
0,0 0.5,0.0 1,0 *-----+-----+-----+-----* | | | | | | | | | | 0,0.5 +-----+-----+-----+-----+ 1,0.5 | | | X | | (U, V) = (0.7, 0.6) | | | | | *-----+-----+-----+-----* 0,1 0.5,1.0 1,1
Also keep in mind that, based on your raster resource, it may be located a little different than you would expect, because they are actually approaching the closest binding. Therefore, in the example above, your anchor points will be tied to this position: *-----+-----+-----+-----* | | | | | | | | | | +-----+-----+-----X-----+ (X, Y) = (3, 1) | | | | | | | | | | *-----+-----+-----+-----* *-----+-----+-----+-----* | | | | | | | | | | +-----+-----+-----X-----+ (X, Y) = (3, 1) | | | | | | | | | | *-----+-----+-----+-----*
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