I would also like to get the area of the mesh element when I fill the
corresponding array element.
if a[1,0]
area = 1.0 * 0.01
if a[30,0]
area = 0.5 * 0.01
Is this possible?
On Nov 26, 2007 7:02 PM, Eric Firing <[EMAIL PROTECTED]> wrote:
> Bryan Fodness wrote:
> > Could someone give me an idea how to get started with this so it
> > coincides with my array of values. I took a look at the quadmesh_demo
> > in the examples and do not see a straightforward way to do this
>
> Maybe the docstrings make it sound more complicated than it really is.
> In your case you have an array of rectangles, not general
> quadrilaterals. All you need are two 1-D arrays, one each for the x and
> y grid boundaries. Something like this:
>
> Z = numpy.random.rand(60,4000)
> X = numpy.arange(4001)
> Y = numpy.array([0, 1.4] + [1.0]*9 + [0.5]*40 + [1]*9 + [1.4]).cumsum()
> pcolor(X, Y, Z)
>
> pcolormesh should work the same, but when I try it now with svn it
> doesn't; I don't know what is going on with it. If you are using a
> release version of mpl, I expect it will work.
>
> Eric
>
> >
> > On Nov 26, 2007 7:52 AM, Michael Droettboom <[EMAIL PROTECTED]> wrote:
> >> You can provide mesh coordinates to the pcolor command:
> >>
> >> X and Y, if given, specify the (x,y) coordinates of the colored
> >> quadrilaterals; the quadrilateral for C[i,j] has corners at
> >> (X[i,j],Y[i,j]), (X[i,j+1],Y[i,j+1]), (X[i+1,j],Y[i+1,j]),
> >> (X[i+1,j+1],Y[i+1,j+1]). Ideally the dimensions of X and Y
> >> should be one greater than those of C; if the dimensions are the
> >> same, then the last row and column of C will be ignored.
> >>
> >> Actually generating the mesh is up to you (wink), but hopefully that
> >> allows for what you need to do.
> >>
> >> Cheers,
> >> Mike
> >>
> >>
> >> Bryan Fodness wrote:
> >>> I am wondering if there is a way to view my data with respect to the
> >>> physical size of what my array element is suppose to be.
> >>>
> >>> I have an array that is 60 x 4000 where,
> >>> the first row has a height of 1.4
> >>> the next nine has a height of 1
> >>> the next forty has a height of 0.5
> >>> the next nine has a height of 1
> >>> and the last one has a height of 1.4
> >>>
> >>> When viewing this with contourf or pcolor, the image is more narrow
> >>> than it should be. Is there an easy way to view this properly.
> >>>
> >>> Bryan
> >>>
> >> --
> >> Michael Droettboom
> >> Science Software Branch
> >> Operations and Engineering Division
> >> Space Telescope Science Institute
> >> Operated by AURA for NASA
> >>
> >
> >
> >
>
>
--
"The game of science can accurately be described as a never-ending insult to
human intelligence." - João Magueijo
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