block by fil 358e889380bfc9d8e4871cc9dc338cf9

Mars on a WebGL globe

Full Screen

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.