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The routine IsStellated returns true if the given polyhedron is of stellated form; false otherwise.

The command with(geom3d,IsStellated) allows the use of the abbreviated form of this command.

$\mathrm{with}\left(\mathrm{geom3d}\right)\:$

$\mathrm{stellate}\left(\mathrm{sico}\,\mathrm{icosahedron}\left(\mathrm{ico}\,\mathrm{point}\left(o\,0\,0\,0\right)\,1\right)\,46\right)$

$\mathrm{sico}$

$\mathrm{IsStellated}\left(\mathrm{sico}\right)$

$\mathrm{true}$

$\mathrm{draw}\left(\mathrm{sico}\,\mathrm{style}=\mathrm{patch}\,\mathrm{lightmodel}=\mathrm{light4}\,\mathrm{shading}=\mathrm{XY}\,\mathrm{orientation}=\left[-142\,-127\right]\,\mathrm{title}=\mathrm{`stellated\; icosahedron\; -\; 46`}\right)$