plotSlice function: minor fix for empty variables option (#859)

* Plot Slice function: title implemented

* Plot Slice function bug fixed

* Some changes from branch update

* Fix title usage and some plotSlice cleanup

* PlotSlice function fix for empty variables for consistency

* small fix regarding dose window in plot slice

* revert changes on axis call (use the sanitized axesHandle)

* Update matRad_plotSlice.m

dose window check in validation

---------

Co-authored-by: Niklas Wahl <[email protected]>

Author: SimonaFa

matRad/util/matRad_plotSlice.m

@@ -68,13 +68,13 @@
 isAxes              = @(x) strcmp(get(x, 'type'), 'axes') || isempty(x);
 isCubeIdx           = @(x) isscalar(x);
 isPlane             = @(x) isscalar(x) && (sum(x==[1, 2, 3])==1);
-isDoseWindow        = @(x) (length(x) == 2 && isvector(x));
+isDoseWindow        = @(x) (length(x) == 2 && isvector(x) && diff(x) > 0);
 isThresh            = @(x) (isscalar(x) && (x>=0) && (x<=1)) || isempty(x);
 isAlpha             = @(x) isscalar(x) && (x>=0) && (x<=1) || isempty(x);
-isDoseColorMap      = @(x) isnumeric(x) && (size(x, 2)==3) &&  all(x(:) >= 0) && all(x(:) <= 1);
+isDoseColorMap      = @(x) (isnumeric(x) && (size(x, 2)==3) &&  all(x(:) >= 0) && all(x(:) <= 1)) || isempty(x);
 isDoseIsoLevels     = @(x) isnumeric(x) && isvector(x)|| isempty(x);
 isVOIselection      = @(x) isnumeric(x) || isempty(x); %all(x(:)==1 | x(:)==0) || isempty(x);
-isContourColorMap   = @(x) isnumeric(x) && (size(x, 2)==3) && size(x, 1)>=2 && all(x(:) >= 0) && all(x(:) <= 1);
+isContourColorMap   = @(x) (isnumeric(x) && (size(x, 2)==3) && size(x, 1)>=2 && all(x(:) >= 0) && all(x(:) <= 1)) || isempty(x);
 isBoolPlotLegend    = @(x) x==0 || x ==1;
 isColorBarLabel     = @(x) isstring(x) || ischar(x) || isempty(x);
 isShowCt            = @(x) isscalar(x) && (x==0) || (x==1);
@@ -128,7 +128,8 @@
 textValues      = struct2cell(p.Unmatched);
 textValues      = textValues(ismember(unmParamNames, textFieldNames));
 textVarargin    = reshape([textFields, textValues]', 1, []);
-%
+
+% Filter axes properties from Unmatched
 axesFields      = unmParamNames(ismember(unmParamNames, axesFieldNames));
 axesValues      = struct2cell(p.Unmatched);
 axesValues      = axesValues(ismember(unmParamNames, axesFieldNames));
@@ -158,7 +159,7 @@
 %% Plot dose
 if ~isempty(p.Results.dose)
     doseWindow = [min(p.Results.dose(:)) max(p.Results.dose(:))];
-    if ~isempty(p.Results.doseWindow) && p.Results.doseWindow(2) - p.Results.doseWindow(1) <= 0
+    if ~isempty(p.Results.doseWindow)
         doseWindow = p.Results.doseWindow;
     end        
     [hDose,doseColorMap,doseWindow] = matRad_plotDoseSlice(axesHandle, p.Results.dose, p.Results.plane, p.Results.slice, p.Results.thresh, p.Results.alpha, p.Results.doseColorMap, doseWindow);
@@ -206,7 +207,7 @@
 %% Adjust axes
 axis(axesHandle,'tight');
 set(axesHandle,'xtick',[],'ytick',[]);
-colormap(axesHandle,p.Results.doseColorMap);
+%colormap(p.Results.axesHandle,p.Results.doseColorMap);
 fontSize = [];
 if isfield(p.Unmatched, 'FontSize')
     fontSize = p.Unmatched.FontSize;
@@ -255,4 +256,4 @@
     hIsoDose = [];
 end
 
-end
+end