Update scatter plot with different colors set by the user
4 views (last 30 days)
Show older comments
Hello,
I have a Gui that is plotting a scatter data into an axes. I want to be able to update the scatter with different colors by a depth condition (minfm, maxfm). The code is as follows:
scatter=findobj(eixo.Children,'type','Scatter');
minfm=[1000;2500];
maxfm=[2000;4000];
color={'blue';'green'};
[l,~]=size(scatter.YData);
[lin,~]=size(color);
V=repmat({'black'},1,l);
for i=1:lin
for j=1:l
if Y(j)>minfm(i) && Y(j)<maxfm(i)
V{:,j}=color{i,1};
end
end
end
set(scatter,'MarkerFaceColor',V{:});
I get the following error:
Error using matlab.graphics.chart.primitive.Scatter/set
There is no green property on the Scatter class.
The vector is ok, but I always get this error and it only plots everything in green
0 Comments
Accepted Answer
Walter Roberson
on 15 Sep 2017
Edited: Walter Roberson
on 15 Sep 2017
scatter=findobj(eixo.Children,'type','Scatter');
minfm=[1000;2500];
maxfm=[2000;4000];
color = [0 0 1; 0 1 0]; %{'blue';'green'};
[l,~]=size(scatter.YData);
[lin,~]=size(color);
V=repmat([0 0 0],l,1); %{'black'}
for i=1:lin
for j=1:l
if Y(j)>minfm(i) && Y(j)<maxfm(i)
V(j,:)=color(i,:);
end
end
end
set(scatter,'MarkerFaceColor',V);
It looks to me as if you should be able to condense that quite a lot.
color = [0 0 0; 0 0 1; 0 1 0];
Vidx = 1 + (Y > minfm(1) & Y < maxfm(1)) * 1 + (Y > minfm(2) & Y < maxfm(2)) * 2; %assume the ranges are mutually exclusive
V = color(Vidx(:), :);
More Answers (0)
See Also
Categories
Find more on Scatter Plots in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!