Clear Filters
Clear Filters

Add markers at min max points in a triangular plot

7 views (last 30 days)
Hello, I wanted to add dots at the min, max points on the triangular plot that I have generated so that my final plot can look like this:
Here is the code that I have so far:
ts=0.1;
t=-5:ts:5;
y=repmat(max(t)-abs(t),1,3);
t=-3:ts:-3+length(y)*ts-ts;
ty=[((t+10)*5)' ((y+10)*5)'];
plot(((t+10)*5)', ((y+10)*5)', '--r', 'Linewidth', 1.5);

Answers (1)

Kian Azami
Kian Azami on 8 Oct 2017
You can change your code a little bit to have the results you want:
clc
close all
clear all
ts=0.1;
t=-5:ts:5;
y=repmat(max(t)-abs(t),1,3);
t=-3:ts:-3+length(y)*ts-ts;
ty=[((t+10)*5)' ((y+10)*5)'];
xData = ((t+10)*5)';
yData = ((y+10)*5)';
yIdx = find(yData == 50 | yData == 75);
yIdx = yIdx([1 2 3 5 6 8 9]);
plot(xData, yData, '--r', 'Linewidth', 1.5);
hold on
plot(xData(yIdx),yData(yIdx),'Marker','o','markersize',10,...
'MarkerFaceColor','k',...
'MarkerEdgeColor','r',...
'linestyle','none')

Categories

Find more on MATLAB in Help Center and File Exchange

Tags

Products

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!