Willis, PhilipWatters, Geoff2014-10-212014-10-2119871467-8659https://doi.org/10.1111/j.1467-8659.1987.tb00360.xWe consider the problem of generating freehand raster graphics pictures at ultra high definition (typically one gigapixel per picture) by scan converting extruded lines. We describe a fast scan conversion algorithm which is linear in final resolution and which incorporates a number of features to ensure high efficiency. Sample pictures and corresponding performance figures are included.10.1111/j.1467-8659.1987.tb00360.x133-140