我正在试图想象驻波。因此，我在3D空间中使用fill3。
我想使其看起来像图像1（image with the wrong angle）。但是那里的视角（最好说是被观看部分的旋转）是错误的，我无法用Matlab函数视图改变它的显示方式。在图像2（image with displaying error中，我可以选择自己喜欢的视角，但在某些情况下fill3不能填充蓝色曲线下方的区域。
我已经尝试使用patch命令，而不是使用'FaceAlpha'。但这没有帮助。
任何建议为什么fill3不能填充该区域以及如何纠正它？ maby只能在我的PC上失败吗？
获取两个图像的代码：
% shows plot of accustic wave for different times
clc
clear
a = 0.5; % Amplitude of oscilation
b = 1; % offset
f = 1; % frequency of oscillation
v = 1; % velocity of soundwave
nX = 100; % number of x sampling points
nT = 5; % number of time sampling points
tVec = linspace(0,0.5,nT); % sampling points for time (subplots)
xVec = linspace(-1.5,1.5,nX); % sampling points for position (x-axis)
figure
hold on
for nn = 1:nT
% for nn = 1:1
T = tVec(nn);
s1 = a*sin(2*pi*(xVec/v)+2*pi*T*f)+b; % first signal component
s2 = a*sin(-2*pi*(xVec/v)+2*pi*T*f+pi)+b; % second signal component
r = mean([s1;s2], 1); % combinde signal
s1Plot = [b, s1, b];
s2Plot = [b, s2, b];
rPlot = [b, r, b];
xVecPlot = [xVec(1), xVec, xVec(end)];
tVecPlot = T*ones(1,nX+2);
fill3(xVecPlot, s1Plot, tVecPlot, 'b', 'FaceAlpha',.2)
fill3(xVecPlot, s2Plot, tVecPlot, 'r', 'FaceAlpha',.2)
plot3(xVec, s1, tVecPlot(3:end), 'b', 'LineWidth', 2)
plot3(xVec, s2, tVecPlot(3:end), 'r', 'LineWidth', 2)
plot3(xVec, r, tVecPlot(3:end), 'k', 'LineWidth', 3)
end % end for
xlabel('x'); ylabel('y'); zlabel('z')
grid on
axis equal
axis tight
set(gca, 'DataAspectRatio', [1 1 0.1])
view(5,-45)
title('wrong viewing angle')
figure
hold on
for nn = 1:nT
% for nn = 1:1
T = tVec(nn);
s1 = a*sin(2*pi*(xVec/v)+2*pi*T*f)+b; % first signal component
s2 = a*sin(-2*pi*(xVec/v)+2*pi*T*f+pi)+b; % second signal component
r = mean([s1;s2], 1); % combinde signal
s1Plot = [b, s1, b];
s2Plot = [b, s2, b];
rPlot = [b, r, b];
xVecPlot = [xVec(1), xVec, xVec(end)];
tVecPlot = T*ones(1,nX+2);
fill3(tVecPlot, xVecPlot, s1Plot, 'b', 'FaceAlpha',.2)
fill3(tVecPlot, xVecPlot, s2Plot, 'r', 'FaceAlpha',.2)
plot3(tVecPlot(3:end), xVec, s1, 'b', 'LineWidth', 2)
plot3(tVecPlot(3:end), xVec, s2, 'r', 'LineWidth', 2)
plot3(tVecPlot(3:end), xVec, r, 'k', 'LineWidth', 3)
end % end for
xlabel('x'); ylabel('y'); zlabel('z')
grid on
axis equal
axis tight
set(gca, 'DataAspectRatio', [0.1 1 1]); view(70,-40)
title('right viewing angle, displaying error')
感谢您的帮助=）
找到了解决方法
将时间T围绕每一步以某种方式有所帮助。 我在Mathworks上提交了一个错误。也许他们可以深入了解它。 工作代码：
% shows plot of accustic wave for different times
clc
clear
a = 0.5; % Amplitude of oscilation
b = 1; % offset
f = 1; % frequency of oscillation
v = 1; % velocity of soundwave
nX = 100; % number of x sampling points
nT = 5; % number of time sampling points
tVec = linspace(0,0.5,nT); % sampling points for time (subplots)
xVec = linspace(-1.5,1.5,nX); % sampling points for position (x-axis)
figure
hold on
for nn = 1:nT
T = tVec(nn);
s1 = a*sin(2*pi*(xVec/v)+2*pi*T*f)+b; % first signal component
s2 = a*sin(-2*pi*(xVec/v)+2*pi*T*f+pi)+b; % second signal component
r = mean([s1;s2], 1); % combinde signal
s1Plot = [b, s1, b];
s2Plot = [b, s2, b];
rPlot = [b, r, b];
xVecPlot = [xVec(1), xVec, xVec(end)];
tVecPlot = T*ones(1,nX+2);
fill3(xVecPlot, s1Plot, tVecPlot, 'b', 'FaceAlpha',.2)
fill3(xVecPlot, s2Plot, tVecPlot, 'r', 'FaceAlpha',.2)
plot3(xVec, s1, tVecPlot(3:end), 'b', 'LineWidth', 2)
plot3(xVec, s2, tVecPlot(3:end), 'r', 'LineWidth', 2)
plot3(xVec, r, tVecPlot(3:end), 'k', 'LineWidth', 3)
end % end for
xlabel('x'); ylabel('y'); zlabel('z')
grid on
axis equal
axis tight
set(gca, 'DataAspectRatio', [1 1 0.1])
view(5,-45)
title('wrong viewing angle')
figure
hold on
for nn = 1:nT
T = round(tVec(nn)*100)/100;
s1 = a*sin(2*pi*(xVec/v)+2*pi*T*f)+b; % first signal component
s2 = a*sin(-2*pi*(xVec/v)+2*pi*T*f+pi)+b; % second signal component
r = mean([s1;s2], 1); % combinde signal
s1Plot = [b, s1, b];
s2Plot = [b, s2, b];
rPlot = [b, r, b];
xVecPlot = [xVec(1), xVec, xVec(end)];
tVecPlot = T*ones(1,nX+2);
fill3(tVecPlot, xVecPlot, s1Plot, 'b', 'FaceAlpha',.2)
pause(0.01)
fill3(tVecPlot, xVecPlot, s2Plot, 'r', 'FaceAlpha',.2)
plot3(tVecPlot(3:end), xVec, s1, 'b', 'LineWidth', 2)
plot3(tVecPlot(3:end), xVec, s2, 'r', 'LineWidth', 2)
plot3(tVecPlot(3:end), xVec, r, 'k', 'LineWidth', 3)
end % end for
% pause
xlabel('x'); ylabel('y'); zlabel('z')
grid on
axis equal
axis tight
set(gca, 'DataAspectRatio', [0.1 1 1]); view(70,-40)
title('right viewing angle, displaying error')