sketch
error detectionSketch
catches many kinds of errors, but not all. For example,
options that sketch does not recognize, even incorrect ones, are
quietly copied to PSTricks
commands in the output. It is also
unfortunately easy to produce sketch
inputs that lead to no
picture at all (improper vertex ordering causes everything to be
culled), to pictures that are too big or too small for PSTricks
to draw (due to limits of TeX math), and pictures that look nothing
like what was intended. A picture with one of these problems can be
difficult to “debug.” We offer the following suggestions.
perspective
, ensure all finally transformed objects
satisfy z<0 and, in fact, do not come very close to the origin
at all.
cull=false
to see where vertex ordering
problems lie.
PSTricks
complains about something, inspect the output
directly for clues.