How can I set different colors for different lines in a plot?
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Hi,
I have a vector of values named result, that indicates the color intensity of each pixel on the same vertical line on a image. I want tp plot it now with a colorbar. For the colorbar I defined the colors needed in the matrix colors. I used scatter to plot each point of result with its corresponding color and I connected all point using line().
That works well. Now I want to draw vertical line for each point and each line has to have the color of the corresponding point.
How can I do it?
Here is my code:
%defining the colors
image = imread('color_deg.jpg'); % image containing all colors needed
size_image = size(image);
ln = size_image(1);
colors = zeros(ln, 3);
% set all color values
for i=1:ln
vector = squeeze(image(i,10,:));
colors(i,:) = vector;
end
x = 1:1:size_result(2); %vector who has the lenght of the y-axis [1 2 3 ... s(2)]
ss = 50;
Color1 = colors/255;
fig = figure
colormap(Color1);
h=scatter(x,result,ss,result,'filled')
line(x,result) %connect all points
%draw vertical lines
for i=1:s(2)
line([i i],[0 result(i)])
end
colorbar
caxis([0 170]);
Here is an example of what my program can do now. I just want to set the colors for the vertical lines
![Unbenannt.png](https://www.mathworks.com/matlabcentral/answers/uploaded_files/202271/Unbenannt.png)
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Kevin Phung
am 31 Jan. 2019
Example:
a = line(x,y) % a is the handle to my line object
a.Color = [1 0 0] %red
%or you can do:
set(a,'Color',[1 0 0])
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