Re: finding area in ListContourPlot
- To: mathgroup at smc.vnet.net
- Subject: [mg116146] Re: finding area in ListContourPlot
- From: DrMajorBob <btreat1 at austin.rr.com>
- Date: Thu, 3 Feb 2011 05:31:33 -0500 (EST)
Use Cases to extract points.
plot = ListContourPlot[
Table[Sin[x] Sin[y], {x, -3, 3, 0.1}, {y, -3, 3, 0.1}],
Contours -> 7]
points = Cases[plot, GraphicsComplex[x__] :> {x}, Infinity];
I'm not sure how you'll isolate precisely the points you want, but that's
a start.
Bobby
On Wed, 02 Feb 2011 05:07:24 -0600, Sam McDermott <samwell187 at gmail.com>
wrote:
> Hi-
>
> I'm new to the site, and I've searched around a bit for the solution to
> this problem, but the answer doesn't seem too tractable. The nearest
> I've gotten was here:
> https://groups.google.com/forum/?fromgroups#!searchin/comp.soft-sys.math.mathematica/finding$20area$20of$20a$20contour$20region/comp.soft-sys.math.mathematica/Hs6KIWL3fvE/DnZQm6joE0gJ
>
> I would like to find the area bounded by the 95% confidence level of an
> object like <plotname>=ListContourPlot[<listname>,Contours->chimin+9.2].
> In the first place, I'm having trouble getting a list of the points that
> bound the contour region. I can use FullForm[<plotname>], followed by
> hunting through the (huge) FullForm output to do this, but I'd like to
> automate the process since I'll have to do this operation for dozens of
> contour plots.
>
> Any help finding the area of region bounded in ListContourPlot or at
> least getting a list of points that define the region would be most
> appreciated.
>
> Thanks very much,
> Sam
>
--
DrMajorBob at yahoo.com