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tile_spec is not doing raster profile aspect ratio correctly #13

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mdsumner opened this issue Jul 18, 2024 · 0 comments

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mdsumner commented Jul 18, 2024

If we do this, we get tiles that have half the resolution in the y direction.

x <- tile_spec(c(256, 256), c(-2, 2, -1, 1) * 1e6, profile = "raster", zoom = 2, 
               crs = "+proj=laea +lon_0=147 +lat_0=-42")
diff(sort(unique(c(x$xmin, x$max))))
[1] 1e+06 1e+06 1e+06
diff(sort(unique(c(x$ymin, x$ymax))))
[1] 5e+05 5e+05 5e+05 5e+05

but in mercator they are equal as expected

diff(sort(unique(c(x$xmin, x$max))))
[1] 10018754
diff(sort(unique(c(x$ymin, x$ymax))))
[1] 10018754 10018754

all cases should give equal steps

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