Update rasterband_pixels.cpp #292
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the `n*4` makes it seem like we're reading RGBA for each pixel, but experimentally `band.pixels.read(0,0,16,16)` only uses 256 slots in the data buffer; only one elevation reading per pixel.
make it clear what the `4` constant is about
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then*4makes it seem like we're reading RGBA for each pixel, but experimentallyband.pixels.read(0,0,16,16)only uses 256 slots in the data buffer; only one elevation reading per pixel.oh it's 4 bytes per float