Plotting a surface with scatter data
조회 수: 4 (최근 30일)
이전 댓글 표시
I have density which is a 310x1 matrix. I have pressure which is a 310x41 matrix. Each column corresponds to a different temperature and each row from 1 to 310 just corresponds to the pressure at a given density in the density matrix.
The temperature is stored in temperature variable as a 1x41 matrix that goes from 100 to 300 in increments of 5 K. How can I plot this data as a surface?
If I try:
surfc(density,temperature,pressure)
I get that the data dimensions must agree.
I have my x-data, density as 310x1.
I have my y-data, temperature as 1x41
Then my z-data, pressure, is 310x41.
Why do the dimensions not agree?
I think I know the issue, but can I just tell MATLAB that x and y values do not change for each matrix? If I manually create every column with all the repetitive data it works. I am not sure if I am being clear here or not, but I imagine the way I am going about doing it is not the most efficient.
댓글 수: 0
채택된 답변
Matt J
2018년 11월 5일
[D,T]=meshgrid(density,temperature);
surf(D,T,pressure);
댓글 수: 1
Walter Roberson
2018년 11월 6일
Alternately,
surfc(density, temperature, pressure.')
The difference is in the implicit grid ordering. Remember that MATLAB normally treats the first dimension of a 2D array as corresponding to y coordinates.
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Surface and Mesh Plots에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!