Add IsosurfacePlot test

Author: robertoffmoura

plotly/Test_plotlyfig.m

@@ -1588,6 +1588,41 @@ function testFunctionSurfacePlotData(tc)
             ));
         end
 
+        function testIsosurfacePlotData(tc)
+            fig = figure("Visible","off");
+            [X,Y,Z] = meshgrid(linspace(-1,1,20),linspace(-1,1,20),linspace(-1,1,20));
+            V = X.^2 + Y.^2 + Z.^2;
+            isosurface(X,Y,Z,V,0.5);
+
+            plotData = fig.Children.Children(2);
+            p = plotlyfig(fig,"visible","off","treatAs",'isosurface');
+
+            tc.verifyNumElements(p.data, 1);
+            tc.verifyEqual(p.data{1}, struct( ...
+                "type", 'mesh3d', ...
+                "name", '', ...
+                "showscale", false, ...
+                "x", plotData.Vertices(:,1), ...
+                "y", plotData.Vertices(:,2), ...
+                "z", plotData.Vertices(:,3), ...
+                "i", plotData.Faces(:,1) - 1, ...
+                "j", plotData.Faces(:,2) - 1, ...
+                "k", plotData.Faces(:,3) - 1, ...
+                "color", "rgb(16,190,186)", ...
+                "lighting", struct( ...
+                    "diffuse", 0.6, ...
+                    "ambient", 0.3, ...
+                    "specular", 0.9, ...
+                    "roughness", 0.2, ...
+                    "fresnel", 0.5, ...
+                    "vertexnormalsepsilon", 1e-12, ...
+                    "facenormalsepsilon", 1e-06 ...
+                ), ...
+                "scene", 'scene1', ...
+                "showlegend", false ...
+            ));
+        end
+
         function testTitleFont(tc)
             fig = figure("Visible","off");
             x = 1:10;

plotly/plotlyfig_aux/handlegraphics/updateIsosurface.m

@@ -140,7 +140,7 @@ function updateScene(obj, isoIndex)
 	end
 
 	%-SET SCENE TO LAYOUT-%
-	obj.layout.("scene" + xsource) = scene;
+	obj.layout.("scene" + xSource) = scene;
 end
 
 function fillColor = getFaceColor(plotData, axisData)