change marker color based on the values

116 visualizzazioni (ultimi 30 giorni)
Hi,
I have a matrix B of 94859 x 3. In the the below command, I would like to change each individual marker color based on the data values stored in the B(:,3). Could somebody help me with this ??
plot (B(:,1),B(:,2), '*');

Risposta accettata

Mathieu NOE
Mathieu NOE il 18 Mag 2022
hello
my suggestions below
S = 35; % size of symbols in pixels
% normalize vector to go from zero to 1
normV = (B(:,3)-min(B(:,3)))./(max(B(:,3))-min(B(:,3)))
% blue to red.
C = [normV zeros(size(normV)) 1-normV];
figure
scatter(B(:,1),B(:,2),S,C,'Marker','s')
colorbar('vert');
% jet colors
CC = jet(numel(normV));
figure
scatter(B(:,1),B(:,2),S,CC,'Marker','s')
colorbar('vert');
  3 Commenti

Accedi per commentare.

Più risposte (0)

Categorie

Scopri di più su Graphics Object Programming in Help Center e File Exchange

Community Treasure Hunt

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

Start Hunting!

Translated by