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Allow contour plots #1

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Allow contour plots #1

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b82ee73
Allow contour plots
nchristensen Dec 20, 2024
4a4d482
Use global contour levels
nchristensen Dec 28, 2024
af5b191
Better way to set contour interval
nchristensen Dec 30, 2024
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3 changes: 2 additions & 1 deletion matlab/NekSnaps.m
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@
index=1;
pfun='x';
verbose=true;
plot_type='surface';

% plot options
colormap='jet';
Expand Down Expand Up @@ -199,7 +200,7 @@ function show(obj,index,pfun)
ptitle = [ptitle, ', ', ff{1}];

ax = gca;
patch_plot(xJ, yJ, fJ, [], 'ColorMap', obj.colormap, 'Title', ptitle, 'EdgeColor', obj.ecolor);
patch_plot(xJ, yJ, fJ, [], 'ColorMap', obj.colormap, 'Title', ptitle, 'EdgeColor', obj.ecolor,'PlotType',obj.plot_type);
obj.index=index;
obj.pfun=pfun;
end
Expand Down
23 changes: 20 additions & 3 deletions matlab/patch_plot.m
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ function patch_plot(x, y, z, filename, varargin)
ecolor = 'k';

cmap = 'jet';

plot_type='surface';
cpos=[];
ctgt=[];
cvec=[];
Expand All @@ -27,6 +27,8 @@ function patch_plot(x, y, z, filename, varargin)
ctgt = varargin{k+1};
elseif strcmp(varargin{k}, 'CameraVector')
cvec = varargin{k+1};
elseif strcmp(varargin{k}, 'PlotType')
plot_type= varargin{k+1};
end
end

Expand All @@ -50,13 +52,28 @@ function patch_plot(x, y, z, filename, varargin)

a1=0;
a2=0;
interval=5;
start=interval;
stop=100 - interval;
level_weights = [start:interval:stop]/100;
levels = (1-level_weights)*zmin + level_weights*zmax;
for i = 1:size(z, 3)
surface(x(:,:,i), y(:,:,i), z(:,:,i),'FaceColor','interp','EdgeColor','none'); hold on
if strcmp(plot_type, 'surface')
surface(x(:,:,i), y(:,:,i), z(:,:,i),'FaceColor','interp','EdgeColor','none'); hold on
elseif strcmp(plot_type, 'contour')
contour(x(:,:,i), y(:,:,i), z(:,:,i),levels); hold on
else
error('Unrecognized plot type');
end;
end

colormap(cmap);
cb=colorbar;
cb.TickLabelInterpreter = 'latex';
try
cb.TickLabelInterpreter = 'latex';
catch
warning('colorbar is not an object in Octave');
end;

if ~strcmp(ecolor, '')
zconst = zeros(size(x,1),1)+zmax+(zmax-zmin)*0.01;
Expand Down