How can I fade Contour Lines on to the Binscatter plot?

I want to fade the Contour Lines only over the places where Binscatter plot(yellow-red boxes) occurs.

Is there a way to fade the contour lines just over the Patches?

Here's the Code:

h = binscatter(nplot,tqplot) 
c = colorbar('Ticks',[0 1400 2800],'TickLabels',{min_p,max_p/2 ,max_p})
c.Label.String = 'Percentage Time Consumption (%)';
colormap(flipud(hot))

contour(Ice.nFuCns_A,Ice.tqFuCns_A,Ice.bsfc',[180:5:200 210],'b','ShowText','on')

[darova]

Can you extract the data fromo contour?

[Syed Muhammad Asad Raza]

Yes Darova

Answer 1

[darova]

You can extract edge of the region (yellow squares) using boundary

[y,x] = im2bw(A);

k = boundary(x,y);

Then use inpolygon to find data inside the region

ind = inpolygon(xq,yq,xv,yv);

[Syed Muhammad Asad Raza]

How can I fade the blues contour lines over the Binscatter?

[darova]

What about this?

t = [linspace(0,2*pi,20) nan];       % add NaN value to break face (patch)
[x1,y1] = pol2cart(t,1);
[x2,y2] = pol2cart(t,2);
x1 = x1 + 1.5;
ix = inpolygon(x1,y1,x2,y2);        % find vertices inside the circle

plot(x1(ix),y1(ix),'.r')
patch(x1,y1,ix+1,'edgecolor','flat')% use patch to color line
line(x2,y2)