Change meshgrid face color

Hi.

What code do I need to change meshgrid face color to 'transparent'?

Thank you.

N = 100;                                                     % Size Of Interpolation Vectors/Matrices
Ltv = linspace(min(W(:,1)), max(W(:,1)), N);                % Latitude Vector For Interpolation
Lnv = linspace(min(W(:,2)), max(W(:,2)), N);                % Longitude Vector For Interpolation
[Ltm,Lnm] = meshgrid(Ltv, Lnv);                               % Matrices For Interpolation
Pm = griddata(W(:,1), W(:,2), W(:,3), Ltm, Lnm);            % Interpolate
figure
surf(Ltm, Lnm, Pm)
colorbar;
grid on
view(40,40)
xlabel('Latitude')
ylabel('Longitude')
zlabel('Total Precipitation (mm)')

Answer 1

[Sindar]

surf(Ltm, Lnm, Pm,'FaceAlpha',0.5)

to set transparency to 50%. See other options here

[Ayush singhal]

in the below code, I would like to change the z axis values. So that cube looks good. Is it possible to set the z axis range from 0 to 10?

Any lead would be helpful.

x y] = meshgrid(-10:2:12); % Generate x and y data

z = zeros(size(x,2)); % Generate z data

surf(x, y,z,'FaceAlpha' , 0.1) % Plot the surface

view(2)

axis on

%

hold on

vert = [0 0 0;10 0 0;10 10 0;0 10 0;0 0 6;10 0 6;10 10 6;0 10 6];

fac = [1 2 6 5;2 3 7 6;3 4 8 7;4 1 5 8;1 2 3 4;5 6 7 8];

patch('Vertices',vert,'Faces',fac,...

'FaceVertexCData',hsv(6),'FaceColor','flat', ...

'FaceAlpha', 0);

view(3)

axis vis3d

% rotate3d

xlabel('x')

ylabel('y')

zlabel('z')

[Sindar]

If I understand correctly, all you need is zlim([0 10]). Also a good idea not to hard-code the vertices

[x, y] = meshgrid(-10:2:12); % Generate x and y data
z = zeros(size(x,2)); % Generate z data
surf(x, y,z,'FaceAlpha' , 0.1) % Plot the surface
view(2)
axis on
% 
hold on
L_x = 10;
L_y = 10;
L_z = 6;
vert = [0 0 0;L_x 0 0;L_x L_y 0;0 L_y 0;0 0 L_z;L_x 0 L_z;L_x L_y L_z;0 L_y L_z];
fac = [1 2 6 5;2 3 7 6;3 4 8 7;4 1 5 8;1 2 3 4;5 6 7 8];
patch('Vertices',vert,'Faces',fac,...
      'FaceVertexCData',hsv(6),'FaceColor','flat', ...
      'FaceAlpha', 0);
view(3)
axis vis3d
% rotate3d
xlabel('x')
ylabel('y')
zlabel('z')
zlim([0 10])

[Ayush singhal]

Thanks, It works.

But still why cube is looking like so verticle. Even the height (6) is less then the lenght and width.

how to make a square cube. If I put all dimenion same then also it looks like too verticle.

[x, y] = meshgrid(-20:2:20); % Generate x and y data

z = zeros(size(x,2)); % Generate z data

surf(x, y,z,'FaceAlpha' , 0.1) % Plot the surface

view(2)

axis on

%

hold on

L_x = 10;

L_y =10;

L_z = 10;

vert = [0 0 0;L_x 0 0;L_x L_y 0;0 L_y 0;0 0 L_z;L_x 0 L_z;L_x L_y L_z;0 L_y L_z];

fac = [1 2 6 5;2 3 7 6;3 4 8 7;4 1 5 8;1 2 3 4;5 6 7 8];

patch('Vertices',vert,'Faces',fac,...

'FaceVertexCData',hsv(6),'FaceColor','flat', ...

'FaceAlpha', 0);

view(3)

axis vis3d

% rotate3d

xlabel('x')

ylabel('y')

zlabel('z')

zlim([-1 10])

xlim([-10 10])

ylim([-10 10])

[Sindar]

Use axis equal:

[x, y] = meshgrid(-10:2:12); % Generate x and y data
z = zeros(size(x,2)); % Generate z data
surf(x, y,z,'FaceAlpha' , 0.1) % Plot the surface
view(2)
axis on
% 
hold on
L_x = 10;
L_y = 10;
L_z = 6;
vert = [0 0 0;L_x 0 0;L_x L_y 0;0 L_y 0;0 0 L_z;L_x 0 L_z;L_x L_y L_z;0 L_y L_z];
fac = [1 2 6 5;2 3 7 6;3 4 8 7;4 1 5 8;1 2 3 4;5 6 7 8];
patch('Vertices',vert,'Faces',fac,...
      'FaceVertexCData',hsv(6),'FaceColor','flat', ...
      'FaceAlpha', 0);
view(3)
axis vis3d equal
% rotate3d
xlabel('x')
ylabel('y')
zlabel('z')
xlim([-10 10])
ylim([-10 10])
zlim([-1 10])

[Ayush singhal]

Thanks a lot. It works perfect.

[x, y] = meshgrid (-10: 1: 12); % Generate x and y data

z = zeros (size (x, 2)); % Generate z data

surf (x, y, z, 'FaceAlpha' , 0.1) % Plot the surface

view (2)

axis on

%

hold on

L_x = 4;

L_y = 4;

L_z = 4;

vert = [0 0 0; L_x 0 0; L_x L_y 0; 0 L_y 0; 0 0 L_z; L_x 0 L_z; L_x L_y L_z; 0 L_y L_z];

fac = [1 2 6 5; 2 3 7 6; 3 4 8 7; 4 1 5 8; 1 2 3 4; 5 6 7 8];

patch ( 'Vertices' , vert, 'Faces' , fac, ...

'FaceVertexCData' , hsv (6), 'FaceColor' , 'flat' , ...

'FaceAlpha' , 0.3);

view (3)

axis vis3d equal

% rotate3d

xlabel ( 'x' )

ylabel ( 'y' )

zlabel ( 'z' )

xlim ([-4 8])

ylim ([-4 8])

zlim ([- 1 10])

########

Now thw below code generates stripe pattern. Major problem is that to put those stripes onto the above code image( where cube is on the image plane). I want something like that is shown in screenshot.

If I am adding this code in the above mentioned code then meshgrid is going to disapper.

screenSize = get(0, 'MonitorPositions')

screenWidth = screenSize(3)

screenHeight = screenSize(4)

stripeWidth = 50; % Pixels

oneCycle = repelem([0,1], stripeWidth);

% Make vertical stripes.

numStripes = floor(screenWidth / (2* stripeWidth))

multipleCycles = uint8(255 * repmat(oneCycle, [screenSize(4), numStripes]));

cmap = [1 1 1; 0 0 0];

S= imrotate(multipleCycles,-45)

imshow(S, [], 'ColorMap', cmap);

axis on;