Time to update my blog again. It’s been more than a year since my last update after all. Today I encountered with a weird error in IDL when trying to improve computation precision of own polar transform image routines. The source was traced back to function
TRIANGULATE. So far I really have no idea about why it occurs. The example is as follows:
% TRIANGULATE: Points are co-linear, no solution.
% Execution halted at: $MAIN$
However, if I type the following
TRIANGULATE works flawlessly:
TRI LONG = Array[3, 358920]
This is really annoying, as I can’t figure out how come co-linearity can be related to float or double precision whatsoever. Not sure if anyone could help this for me, but I just throw this problem here and see if there’s anyone else faced with the same encounter so that we can potentially sigh together…