Dear Larry,
Yesterday I gave a look at your ring buffer tool. I consider it a very good
idea which can be used in many situation
I had several ideas about it which probabily can improve the functionality.
a) the buffer value of the first ring (ing A) could be an arbitrary value
(lat's say L) or an attribute value
b) the values of outer rings (Rings B, C, D...)could be different according to
mathematic formulas. Some samples:
1) Linear (A=L, B=L, C=L....), a sequence of rings which have the same inner
radius.
2) Geometrical (A=L, B=2L, C=3L, D=4L) each radius is bigger than the inner one
of L value.
3) Esponential (A=L, B=2L, C=4L, D=8L) each radius is the double then the
imnner.
4) By formula. This probabily is more difficult . If I give asn arbitrary
formula that calculates the value of each ring according, for instance sample
3) could be squared L. This option would allow user to calculate even
decremental inner buffer (L/2 or 2/3*L, etc).
I am not sure about the difficulties to create these options. Consider that
these options will make your plugin extremely useful.
For instance: sample 1 (linear) would be useful to calculate the progression of
an river which overbank on a flat valley at the forst stages.
Samples 2 and 3 would have some medical application (diffusion of some plague
on a territory) or botanic or ecological usage (progression of air/water
pollutions).
The sample 4 (by formula) probabily is the most required one, in my case
(geology) I would use to calculate the progression of a vulcanic surge (from
the souce to the valley) to define risk maps. Or the progression of avalances
according to formulas which I calculate by the slope
his would be an interesting area of developing for OJ
Best regards and thanks for your efforts
Peppe
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