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Re: [ferret_users] color-filled contour smoothing



Hi,
Also note that the parts of the CONSET command that affect labels on the contours, are also available as qualifiers to the CONTOUR command; if these are the settings you want to make, they are more easily done, with no need for a PPL call, by using the qualifier.

CONTOUR/SIZE, CONTOUR/SIGDIG, and CONTOUR/SPACING are alternative implementations of the PPL CONSET command. /SIZE is equivalent to hgt, /SIGDIG is nsig, and /SPACING is dslab.

Ansley


William.S.Kessler wrote:
I'm not sure I quite understand the question, but try adding the command PPL CONTOUR/OVER at the end of your final example. What do you mean by "smoothing". I don't think CONSET has anything to do with smoothing.

The use of those old PPL settings (argument CAY to CONSET) work only on the line-drawing routines. No one has thought about them for more than 20 years. Much better to do smoothing on the data itself using the Ferret transformations @SBX, @SPZ, etc. If nothing else, the Ferret transformations are documented and the smoothing quantifiable, whereas what CAY does is is unpredictable.

Billy K

On 10/10/2007, at 8:50 AM, Peter Szabo wrote:

Dear Ferreters,

I am a student from Hungary and programming in ferret as a beginner.  Ferret comes up to my expectations, but i just have not found anything about color-filled contour smoothing. Neither in archives.

I know this works:



contour/line/set/...

ppl conset ...

ppl contour/line



but this does not:



fill/set/ ...

ppl conset ...

ppl fill



If it helps, i am using version 5.51 on XP.

Thanks in advance,

Peter Szabo

ELTE




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