Preparatory work for Missions to Mars.
Problems solved:
– invert geoOrthographic (instead of geoStereographic).
– what to do for pixels outside the globe
– white artifacts on the boundary of the jpg image (they were on the original image!)
– upgrade to d3 v4.
– made sure the image’s center has lonlat = [0,0]
– got rid of the pesky dot in the center on iPhone (reported by Harry Stevens)
Forked from @mbostock’s Milky Way block. License GPL-3.
Image: USGS.