필터 지우기
필터 지우기

Plot 2D data colormap

조회 수: 156 (최근 30일)
Dusaucy Camille
Dusaucy Camille 2021년 3월 26일
댓글: Nathan Hardenberg 2023년 7월 20일
Hello,
I have a file with 3 columns: x,y and z and I would like to plot a 2D map with the value of data z at the coordinate (x,y) with a colorbar that is in the range of the z-data (z is not a function of x and y). My points are from an unscructured grid point. I already try to use scatter and pcolor but I did not succeed to do this.
Could you help me to do this ? Thank you in advance !!
Camille From Belgium
  댓글 수: 3
darova
darova 2021년 3월 26일
Better be to place your comment in the answer section
Bobby Fischer
Bobby Fischer 2021년 3월 27일
Okay.

댓글을 달려면 로그인하십시오.

채택된 답변

Bobby Fischer
Bobby Fischer 2021년 3월 27일
This could help:
x = -3 + 6*rand(50,1);
y = -3 + 6*rand(50,1);
v = sin(x).^4 .* cos(y);
F = scatteredInterpolant(x,y,v);
[xq,yq] = meshgrid(-3:0.1:3);
F.Method = 'linear';
vq1 = F(xq,yq);
figure(1), close(1), figure(1)
plot3(x,y,v,'mo')
hold on
mesh(xq,yq,vq1)
title('Nearest Neighbor')
legend('Sample Points','Interpolated Surface','Location','NorthWest')
view(2)
colormap default
colorbar

추가 답변 (0개)

카테고리

Help CenterFile Exchange에서 Colormaps에 대해 자세히 알아보기

Community Treasure Hunt

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

Start Hunting!

Translated by