Mercurial > octave
changeset 22240:669fc8cf1fdd
isosurface.m: Rework %!demos (bug #48626).
* isosurface.m: Add demo with one sphere for check of color range
computation in graphics toolkits. Change to Matlab syntax in demo 3 and
rotate view.
| author | Markus Mützel <markus.muetzel@gmx.de> |
|---|---|
| date | Tue, 09 Aug 2016 15:07:30 -0700 |
| parents | f7b70f3a8fc1 |
| children | 71d86e88589f |
| files | scripts/plot/draw/isosurface.m |
| diffstat | 1 files changed, 33 insertions(+), 8 deletions(-) [+] |
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--- a/scripts/plot/draw/isosurface.m Sat Jul 30 10:38:09 2016 -0500 +++ b/scripts/plot/draw/isosurface.m Tue Aug 09 15:07:30 2016 -0700 @@ -364,6 +364,14 @@ %! clf; %! [x,y,z] = meshgrid (-2:0.5:2, -2:0.5:2, -2:0.5:2); %! v = x.^2 + y.^2 + z.^2; +%! isosurface (x, y, z, v, 1); +%! axis equal; +%! title ("isosurface of a sphere"); + +%!demo +%! clf; +%! [x,y,z] = meshgrid (-2:0.5:2, -2:0.5:2, -2:0.5:2); +%! v = x.^2 + y.^2 + z.^2; %! isosurface (x, y, z, v, 3); %! isosurface (x, y, z, v, 5); %! axis equal; @@ -377,21 +385,38 @@ %! v = [0, 0, 0; 0, 0, 0; 0, 0, 1; 0, 0, 1]; %! v(:,:,2) = [0, 0, 0; 0, 0, 1; 0, 1, 2; 0, 1, 2]; %! iso = 0.8; +%! clf; %% three arguments, no output -%! figure; -%! subplot (2, 2, 1); isosurface (v, iso, yy); view(3) +%! subplot (2, 2, 1); +%! fvc = isosurface (v, iso, yy); +%! patch (fvc); +%! shading faceted +%! view (110, 40); %% six arguments, no output (x, y, z are vectors) -%! subplot (2, 2, 2); isosurface (x, y, z, v, iso, yy); view (3) +%! subplot (2, 2, 2); +%! fvc = isosurface (x, y, z, v, iso, yy); +%! patch (fvc); +%! shading faceted +%! view (110, 40); %% six arguments, no output (x, y, z are matrices) -%! subplot (2, 2, 3); isosurface (xx, yy, zz, v, iso, yy); view (3) +%! subplot (2, 2, 3); +%! fvc = isosurface (xx, yy, zz, v, iso, yy); +%! patch (fvc); +%! shading faceted +%! view (110, 40); %% six arguments, no output (mixed x, y, z) and option "noshare" -%! subplot (2, 2, 4); isosurface (x, yy, z, v, iso, yy, "noshare"); view (3) -%! annotation ("textbox", [0.01 0.93 1 0.1], ... +%! subplot (2, 2, 4); +%! fvc = isosurface (x, yy, z, v, iso, yy, "noshare"); +%! patch (fvc); +%! shading faceted +%! view (110, 40); +%! annotation ("textbox", [0.1 0.9 0.9 0.1], ... %! "String", ["Apart from the first plot having a different scale, " ... -%! "all four plots must look the same.\n" ... +%! "all four plots must look the same." 10 ... %! "The last plot might have different colors but must have " ... %! "the same shape."], ... -%! "HorizontalAlignment", "left"); +%! "HorizontalAlignment", "left", ... +%! "FontSize", 12); %!shared x, y, z, xx, yy, zz, val, iso %! x = 0:2;