I am trying to combine multiple contour plots on the same figure in MATLAB to obtain a region satisfying common constraints with lines for one of the criteria in passing region.

I am using below srcipt which is giving me a combine plot . Now I also want to draw the lines in a region satisfying common constraints for one of my criteria (D5 in below case which is not normalised and have values for it in a range of - 5000 to +5000). all other parameters i.e. D1,D2,D3 and D4 are normalised. Could you please help me with this?

tlt8 =['Combined Map']; figure(8); figure(8); hold all;xlabel('attached inertia [in-lb-sec^2]') figure(8); hold all;ylabel('inertia at front end [in-lb-sec^2]') figure(8); hold all;title ('Valid inertia envelop') cIndx = (D1>1).*(D2>1).*(D3>1).*(D4>1).*(D5>0);

[C1,h1]= contourf(X,Y,D1); hText=clabel(C1,h1,'LabelSpacing',108,'color','b');

hold on;

[C2,h2]= contourf(X,Y,D2); hText=clabel(C2,h2,'LabelSpacing',108,'color','k');

hold on;

[C3,h3]= contourf(X,Y,D3); hText=clabel(C3,h3,'LabelSpacing',108,'color','k');

hold on;

[C4,h4]= contourf(X,Y,D4); hText=clabel(C4,h4,'LabelSpacing',108,'color','k');

hold on;

[C5,h5]= contourf(X,Y,D5); hText=clabel(C5,h5,'LabelSpacing',108,'color','k');

[cc,hc]=contourf(X,Y,cIndx,1);

hcPatches=findobj(hc,'Type','Patch');

for pIndx=1:length(hcPatches)

y=get(hcPatches(pIndx),'YData');

%set the common pass area to be green and if(get(hcPatches(pIndx),'Userdata')~=0) set(hcPatches(pIndx),'FaceColor',[0 1 0]); else %Make the fail area invisible % set(hcPatches(pIndx),'Visible','off'); set(hcPatches(pIndx),'FaceColor',[1 0 0]);

end end