id summary reporter owner description type status priority milestone component resolution keywords cc merged author reviewer upstream work_issues branch commit dependencies stopgaps
24331 Document undocumented behaviour(s) of the 3D plotting functions charpent "It turns out that our 3D plotting infrastructures has some nice, but undocumented features :
* {{{plot3d}}} and friends accept {{{float(""NaN"")}}} values as value of a plotted function, and leave the corresponding face(s) unplotted : this gives a rectangular hole un the surface ;
* the same functions accept a2-element list (or tuple ?) {{{[, ]}}}as a value for the {{{color}}} keyword argument ; this allows to compute a color value as a function of the point.
As far as I know, this latter point is documented only for parametric surfaces ; the first one is not documented at all.
The point of this ticket is to document these abilities, thus (hopefully) avoiding to lose them in any future upgrade (somewhat needed...) of our 3D infrastructure, and allowing to write new utilities explicitly using them." enhancement new major sage-8.2 graphics egourgoulhon N/A #23696