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adding isosurface functionality to matlab_plotly #413

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Merged
merged 1 commit into from
Oct 19, 2021
Merged

adding isosurface functionality to matlab_plotly #413

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2 changes: 2 additions & 0 deletions plotly/plotlyfig_aux/core/updateData.m
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Original file line number Diff line number Diff line change
Expand Up @@ -95,6 +95,8 @@
updateTernaryPlotPro(obj, dataIndex);
elseif ismember('ternpcolor', lower(obj.PlotOptions.TreatAs))
updateTernaryPlotPro(obj, dataIndex);
elseif ismember('isosurface', lower(obj.PlotOptions.TreatAs))
updateIsosurface(obj, dataIndex);
else
updatePatch(obj, dataIndex);
end
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190 changes: 190 additions & 0 deletions plotly/plotlyfig_aux/handlegraphics/updateIsosurface.m
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Original file line number Diff line number Diff line change
@@ -0,0 +1,190 @@
function obj = updateIsosurface(obj, isoIndex)

%-------------------------------------------------------------------------%

%-INITIALIZATIONS-%

axIndex = obj.getAxisIndex(obj.State.Plot(isoIndex).AssociatedAxis);
plotData = get(obj.State.Plot(isoIndex).Handle);
axisData = get(plotData.Parent);
[xSource, ySource] = findSourceAxis(obj, axIndex);

%-update scene-%
updateScene(obj, isoIndex)

%-get mesh data-%
xData = plotData.Vertices(:, 1);
yData = plotData.Vertices(:, 2);
zData = plotData.Vertices(:, 3);

iData = plotData.Faces(:, 1) - 1;
jData = plotData.Faces(:, 2) - 1;
kData = plotData.Faces(:, 3) - 1;

%-------------------------------------------------------------------------%

%-get trace-%
obj.data{isoIndex}.type = 'mesh3d';
obj.data{isoIndex}.name = plotData.DisplayName;
obj.data{isoIndex}.showscale = false;

%-------------------------------------------------------------------------%

%-set mesh data-%
obj.data{isoIndex}.x = xData;
obj.data{isoIndex}.y = yData;
obj.data{isoIndex}.z = zData;

obj.data{isoIndex}.i = iData;
obj.data{isoIndex}.j = jData;
obj.data{isoIndex}.k = kData;

%-------------------------------------------------------------------------%

%-mesh coloring-%
faceColor = getFaceColor(plotData, axisData);

if iscell(faceColor)
obj.data{isoIndex}.facecolor = faceColor;
else
obj.data{isoIndex}.color = faceColor;
end

%-------------------------------------------------------------------------%

%-lighting settings-%
if ~strcmp(plotData.FaceLighting, 'flat')
obj.data{isoIndex}.lighting.diffuse = plotData.DiffuseStrength;
obj.data{isoIndex}.lighting.ambient = plotData.AmbientStrength;
obj.data{isoIndex}.lighting.specular = plotData.SpecularStrength;
obj.data{isoIndex}.lighting.roughness = 0.2;
obj.data{isoIndex}.lighting.fresnel = 0.5;
obj.data{isoIndex}.lighting.vertexnormalsepsilon = 1e-12;
obj.data{isoIndex}.lighting.facenormalsepsilon = 1e-6;
end

%-------------------------------------------------------------------------%

%-associate scene to trace-%
obj.data{isoIndex}.scene = sprintf('scene%d', xSource);

%-------------------------------------------------------------------------%
end

function updateScene(obj, isoIndex)

%-INITIALIZATIONS-%
axIndex = obj.getAxisIndex(obj.State.Plot(isoIndex).AssociatedAxis);
plotData = get(obj.State.Plot(isoIndex).Handle);
axisData = get(plotData.Parent);
[xSource, ySource] = findSourceAxis(obj, axIndex);
scene = eval( sprintf('obj.layout.scene%d', xSource) );

aspectRatio = axisData.PlotBoxAspectRatio;
cameraPosition = axisData.CameraPosition;
dataAspectRatio = axisData.DataAspectRatio;
cameraUpVector = axisData.CameraUpVector;
cameraEye = cameraPosition./dataAspectRatio;
normFac = 0.5*abs(min(cameraEye));

%-aspect ratio-%
scene.aspectratio.x = aspectRatio(1);
scene.aspectratio.y = aspectRatio(2);
scene.aspectratio.z = aspectRatio(3);

%-camera eye-%
scene.camera.eye.x = cameraEye(1) / normFac;
scene.camera.eye.y = cameraEye(2) / normFac;
scene.camera.eye.z = cameraEye(3) / normFac;

%-camera up-%
scene.camera.up.x = cameraUpVector(1);
scene.camera.up.y = cameraUpVector(2);
scene.camera.up.z = cameraUpVector(3);

%-camera projection-%
% scene.camera.projection.type = axisData.Projection;

%-scene axis configuration-%
scene.xaxis.range = axisData.XLim;
scene.yaxis.range = axisData.YLim;
scene.zaxis.range = axisData.ZLim;

scene.xaxis.zeroline = false;
scene.yaxis.zeroline = false;
scene.zaxis.zeroline = false;

scene.xaxis.showline = true;
scene.yaxis.showline = true;
scene.zaxis.showline = true;

scene.xaxis.ticklabelposition = 'outside';
scene.yaxis.ticklabelposition = 'outside';
scene.zaxis.ticklabelposition = 'outside';

scene.xaxis.title = axisData.XLabel.String;
scene.yaxis.title = axisData.YLabel.String;
scene.zaxis.title = axisData.ZLabel.String;

%-tick labels-%
scene.xaxis.tickvals = axisData.XTick;
scene.xaxis.ticktext = axisData.XTickLabel;
scene.yaxis.tickvals = axisData.YTick;
scene.yaxis.ticktext = axisData.YTickLabel;
scene.zaxis.tickvals = axisData.ZTick;
scene.zaxis.ticktext = axisData.ZTickLabel;

scene.xaxis.tickcolor = 'rgba(0,0,0,1)';
scene.yaxis.tickcolor = 'rgba(0,0,0,1)';
scene.zaxis.tickcolor = 'rgba(0,0,0,1)';
scene.xaxis.tickfont.size = axisData.FontSize;
scene.yaxis.tickfont.size = axisData.FontSize;
scene.zaxis.tickfont.size = axisData.FontSize;
scene.xaxis.tickfont.family = matlab2plotlyfont(axisData.FontName);
scene.yaxis.tickfont.family = matlab2plotlyfont(axisData.FontName);
scene.zaxis.tickfont.family = matlab2plotlyfont(axisData.FontName);

%-grid-%
if strcmp(axisData.XGrid, 'off'), scene.xaxis.showgrid = false; end
if strcmp(axisData.YGrid, 'off'), scene.yaxis.showgrid = false; end
if strcmp(axisData.ZGrid, 'off'), scene.zaxis.showgrid = false; end

%-SET SCENE TO LAYOUT-%
obj.layout = setfield(obj.layout, sprintf('scene%d', xSource), scene);
end

function fillColor = getFaceColor(plotData, axisData)

%-initializations-%
faceColor = plotData.FaceColor;
cData = plotData.CData;
cLim = axisData.CLim;
colorMap = axisData.Colormap;

%-get face color depending of faceColor attribute
if isnumeric(faceColor)
numColor = 255 * faceColor;
fillColor = sprintf('rgb(%f,%f,%f)', numColor);

elseif strcmpi(faceColor, 'flat')
fillColor = getStringColor(cData, colorMap, cLim);

elseif strcmpi(faceColor, 'interp')
if size(cData, 1) ~= 1
for n = 1:size(cData, 2)
fillColor{n} = getStringColor(mean(cData(:, n)), colorMap, cLim);
end
else
% TODO
end
end
end

function stringColor = getStringColor(cData, colorMap, cLim)
nColors = size(colorMap, 1);
cIndex = max( min( cData, cLim(2) ), cLim(1) );
scaleColor = (cIndex - cLim(1)) / diff(cLim);
cIndex = 1 + floor(scaleColor*(nColors-1));
numColor = 255 * colorMap(cIndex, :);
stringColor = sprintf('rgb(%f,%f,%f)', numColor);
end