MathGroup Archive 1994

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interpolation over irregular grid of points

  • To: MATHGROUP <MATHGROUP at yoda.physics.unc.edu>
  • Subject: interpolation over irregular grid of points
  • From: UDEM032 at bay.cc.kcl.ac.uk
  • Date: Mon, 9 May 94 12:14 BST

I am trying to plot some contours using data  for velocity fluctuations or
kinetic energy I collected by velocity measurements in a complex geometry. The
problems arising from that geometry are that I can't measure everywhere and as
a result my data do not correspond to a regular grid of points. The
Interpolation Function command doesn't work if an irregular grid of points is
used. This is quite strange because other packages (e.g. UNIRAS) do not have
that restriction. 

Mathematica technical support suggested that I should use triangulation
algorithms. This seems rather complicated though. Has anyone faced that problem
before? I would appreciated if anyone could provide me any information that
might help to solve that serious restriction.

Regards,
Stavroula
King's College London.





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