Merge pull request #256 from plotly/issue245

fix issue #245

Author: gilbertogalvis

plotly/plotlyfig.m

@@ -898,6 +898,7 @@ function delete(obj)
                     if ~( ...
                             strcmpi(fieldname,'surface') || strcmpi(fieldname,'scatter3d') ...
                         ||  strcmpi(fieldname,'mesh3d') || strcmpi(fieldname,'bar') ...
+                        ||  strcmpi(fieldname,'scatterpolar') ...
                         )
                         fprintf(['\nWhoops! ' exception.message(1:end-1) ' in ' fieldname '\n\n']);
                     end

plotly/plotlyfig_aux/handlegraphics/updateLineseries.m

@@ -65,6 +65,17 @@ function updateLineseries(obj,plotIndex)
 
 %-------------------------------------------------------------------------%
 
+%-if compass or not-%
+iscompass = false;
+x = plot_data.XData;
+y = plot_data.YData;
+
+if length(x)==5 && length(y)==5 && x(2)==x(4) && y(2)==y(4)
+    iscompass = true;
+end
+
+%-------------------------------------------------------------------------%
+
 %-scatter xaxis-%
 obj.data{plotIndex}.xaxis = ['x' num2str(xsource)];
 
@@ -78,6 +89,10 @@ function updateLineseries(obj,plotIndex)
 %-scatter type-%
 obj.data{plotIndex}.type = 'scatter';
 
+if iscompass
+    obj.data{plotIndex}.type = 'scatterpolar';
+end
+
 %-------------------------------------------------------------------------%
 
 %-scatter visible-%
@@ -86,12 +101,23 @@ function updateLineseries(obj,plotIndex)
 %-------------------------------------------------------------------------%
 
 %-scatter x-%
-obj.data{plotIndex}.x = plot_data.XData;
+
+if iscompass
+    r = sqrt(x.^2 + y.^2);
+    obj.data{plotIndex}.r = r;
+else
+    obj.data{plotIndex}.x = x;
+end
 
 %-------------------------------------------------------------------------%
 
 %-scatter y-%
-obj.data{plotIndex}.y = plot_data.YData;
+if iscompass
+    theta = atan2(x,y);
+    obj.data{plotIndex}.theta = -(rad2deg(theta) - 90);
+else
+    obj.data{plotIndex}.y = plot_data.YData;
+end
 
 %-------------------------------------------------------------------------%