Changing marker color

I would like to scale the color of a marker based on temperature values being plotted there. For example, to plot 10 temperatures scaled from red to white I could use

for n = 1:10
TempScaled = (Temp(n) - min(Temp))/(max(Temp)-min(Temp));
plot(x(n),y(n),'.','MarkerSize',20,'color',[TempScaled 1 1]); 
end

But I would like to use a more traditional and easy-to-read color scale, such as 'hot'. Any ideas of how I can do this?

[Sahil Bharti]

Hi,

I wish to use the scaller plot with data polotted with different colors as received in the ABAQUS cae output.

How to plot

Answer 1

[Jan]

color = hot(20);
for n = 1:10
  TempScaled = (Temp(n) - min(Temp)) / (max(Temp) - min(Temp));
  plot(x(n), y(n), '.', 'MarkerSize', 20, 'color', color(n, :)); 
end

[EDITED, accepted flag cleared]

Answer 2

[Walter Roberson]

pointsize = 20;
scatter(x, y, pointsize, TempScaled);

[Chad Greene]

oops, I meant to "accept" this answer.

Answer 3

[Chad Greene]

Both great solutions here, thanks guys! I have never used the scatter plot before, and I think that's the key. I like removing loops wherever I can. Thanks again!

[Jan]

There is a FOR loop inside SCATTER also. If you want to write efficient code, it would be better to replace the PLOT by LINE in your FOR loop.

It sounds like you have accepted my answer accidently. Therefore I delete it and re-post it. This remove the existing acceptance flag and you can reset it. Ok?