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CONTOURFCMAP Filled contour plot with specified colors

  h = contourfcmap(x,y,z,clev,cmap,lo,hi,cbarloc)
  h = contourfcmap(x,y,z,clev,cmap)
  h = contourfcmap(x,y,z,clev,cmap,lo)
  h = contourfcmap(x,y,z,clev,cmap,lo,hi)

  This function creates a shaded contour map, similar to that created by
  the contourf function.  However, the relationship between a contourf plot
  and it's colormap (i.e. exactly which color corresponds to each contour
  interval), can often be confusing and inconsistent, in my opinion.  This
  function instead allows the user to specify exactly which colors to use
  in each interval, and also to choose colors for regions that exceed the
  contour line limits.

  Input variables

    x:          x-coordinates of grid, following size restrictions of surf
                command

    y:          y-coordinates of grid, following size restrictions of surf
                command

    z:          array of data to be contoured, following size restritions
                of surf command

    clev:       vector of length n, contour levels, must be monotonically
                increasing

    cmap:       n-1 x 3 colormap array, specifying colors used to shade
                each contour interval

    lo:         1 x 3 colormap array, specifying color used for all data
                falling below the first contour level.  If not included or
                empty, default will be to white.

    hi:         1 x 3 colormap array, specifying color used for all data
                falling above the last contour level.  If not included or
                empty, default will be to white.

    cbarloc:    string specifying colorbar location (see colorbar),  or a
                1 x 4 position vector for colorbar.  If not included, no
                colorbar will be created.  Note that the colorbar created
                is not a colorbar object, but just an axis with plotted
                patches; it is for labeling only and is not linked to the
                "peer axis" in any way.

  Output variables:

    h:          1 x 1 structure

                c:      contour matrix for filled contour plot

                h:      handle to contourgroup

                cbax:   handle to axis of colorbar

  Example:

  [x,y] = meshgrid(linspace(0,1,100));
  z = peaks(100);
  contourfcmap(x,y,z,[-5 -3 -2:.5:2 3 5],jet(12), ...
               [.8 .8 .8], [.2 .2 .2], 'eastoutside') contourfcmap.zip (3.28 KB, 下载次数: 0, 售价: 2 物探币)

2013-11-24 09:52 上传

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