清空筛选条件
清空筛选条件

How to interpolate to fill zeros in two-dimensional data

3 次查看（过去 30 天）
장훈 정
장훈 정 2023-7-18
回答： Chunru 2023-7-18
load power
L2 = 200;
unitstep = 1;
% xv = (unique([L2:-unitstep:0,0:-unitstep:-L2],'stable')); % +L/2 부터 -L/2 까지 unit-step 행렬생성
% yv = (unique([L2:-unitstep:0,0:-unitstep:-L2],'stable')); % -L/2 부터 +L/2 까지 unit-step 행렬생성
xv = unique(0:400,'stable'); % +L/2 부터 -L/2 까지 unit-step 행렬생성
yv = unique(0:400,'stable'); % -L/2 부터 +L/2 까지 unit-step 행렬생성
[X, Y] = meshgrid(xv,yv);
F_mesh = [X(:),Y(:)]; % 1열 행렬로 변환
Nf = size(F_mesh,1);
xvv = xv; yvv = yv;
Nx = numel(xvv); Ny = numel(yvv);
figure(1)
subplot 121
imagesc(xvv,yvv,power);
axis equal
xlim([0 400])
ylim([0 400])
set(gca,'YDir','normal')
subplot 122
surf(xvv, yvv, power,'EdgeColor', 'none','FaceColor','interp')
When measuring, important parts were measured in detail due to time issues, but other parts were measured at 3mm intervals.
The yellow part is the part where the yellow part is 0 in the part measured at 3mm intervals, and I want to get a code that fills the yellow part between the circles using interpolation.
please.

请先登录，再回答此问题。

回答（1 个）

Chunru
Chunru 2023-7-18
Ran in:
load(websave("power.mat", "https://www.mathworks.com/matlabcentral/answers/uploaded_files/1436568/power.mat"))
whos
Name Size Bytes Class Attributes cmdout 1x33 66 char power 401x401 1286408 double
L2 = 200;
unitstep = 1;
% xv = (unique([L2:-unitstep:0,0:-unitstep:-L2],'stable')); % +L/2 부터 -L/2 까지 unit-step 행렬생성
% yv = (unique([L2:-unitstep:0,0:-unitstep:-L2],'stable')); % -L/2 부터 +L/2 까지 unit-step 행렬생성
xv = unique(0:400,'stable'); % +L/2 부터 -L/2 까지 unit-step 행렬생성
yv = unique(0:400,'stable'); % -L/2 부터 +L/2 까지 unit-step 행렬생성
[X, Y] = meshgrid(xv,yv);
F_mesh = [X(:),Y(:)]; % 1열 행렬로 변환
Nf = size(F_mesh,1);
xvv = xv; yvv = yv;
Nx = numel(xvv); Ny = numel(yvv);
figure(1)
subplot 121
imagesc(xvv,yvv,power);
axis equal
xlim([0 400])
ylim([0 400])
set(gca,'YDir','normal')
subplot 122
surf(xvv, yvv, power,'EdgeColor', 'none','FaceColor','interp')
figure
subplot(121)
power1 = power;
power1(power1 > -0.2) = "nan";
power2 =fillmissing2(power1, "natural");
imagesc(xvv,yvv,power2);
axis equal
xlim([0 400])
ylim([0 400])
set(gca,'YDir','normal');
subplot(122)
surf(xvv, yvv, power2,'EdgeColor', 'none','FaceColor','interp')

类别

在 Help Center 和 File Exchange 中查找有关 Axis Labels 的更多信息

标签

产品


版本

R2022b

Community Treasure Hunt

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

Start Hunting!

Translated by