How do I translate RGB color to a color on my patch Object?

X = [0 0 5; 0 0 5; 4 4 9];

Y = [0 4 0; 3 7 3; 0 4 0];

C = [0; .2422; 1];

figure

patch(X,Y,C);

Can anyone please help me find out how this value "0.2422" translates to its corresponding RGB value.

Matlab Documentation (" https://www.mathworks.com/help/matlab/creating_plots/how-patch-data-relates-to-a-colormap.html ") is not of much use in this directtion as well.!!

Answer 1

[KSSV]

X = [0 0 5; 0 0 5; 4 4 9];  
Y = [0 4 0; 3 7 3; 0 4 0];  
figure
mycolor = 'r' ; % you can use 'r','b','g','c','m','k', etc..
patch(X,Y,mycolor);

[Abhay Aradhya]

Thank you that worked. But I wanted the RBG values to the color being put in.

X = [0 0 5; 0 0 5; 4 4 9]; 

Y = [0 4 0; 3 7 3; 0 4 0];  

figure

mycolor = [1 0.76 0]

patch(X,Y,mycolor);

This did the tric

Answer 2

[Walter Roberson]

http://www.mathworks.com/help/matlab/ref/patch-properties.html#property_d0e726049

Cdatamapping defaults to scaled. You end up about 1/4 of the way through the color map.

[Abhay Aradhya]

Walter found a way to get it done

X = [0 0 5; 0 0 5; 4 4 9]; 

Y = [0 4 0; 3 7 3; 0 4 0];  

figure

mycolor = [1 0.76 0]

patch(X,Y,mycolor);

This will assign the same color to all the triangles in this case. If you need to assign different colors then just pass the "patch" line through a loop and assign different colors to it. You could make a array of colors if that helps and loop it through.

[Walter Roberson]

This is a different question than what you asked. You were asking how MATLAB determined which color got plotted given a particular data value, not how to force a particular face or edge to be a particular color.