MATLAB - slice

Volume Data Along Slices

Show volumetric data along slice planes that are orthogonal to each axis.

Create slice planes through the volume defined by v=xe-x2-y2-z2, where x, y, and z range from [-2,2]. Create slice planes orthogonal to the x-axis at the values -1.2,0.8, and2and orthogonal to the *z*-axis at the value0`. Do not create any slice planes that are orthogonal to the y-axis by specifying an empty array.

  [X,Y,Z] = meshgrid(-2:.2:2);
V = X.*exp(-X.^2-Y.^2-Z.^2);

xslice = [-1.2,0.8,2];   
yslice = [];
zslice = 0;
slice(X,Y,Z,V,xslice,yslice,zslice)
fig2plotly()

• Plot
• SSIM

Volume Data Along Surface

Show volumetric data along a nonplanar slice. Define the surface where you want to show the volumetric data.

Create volume array V as the volume defined by v=xe-x2-y2-z2, where x, y, and z range from [-5,5]. Then, show a slice of the volume data along the surface defined by z=x2-y2.

  [X,Y,Z] = meshgrid(-5:0.2:5);
V = X.*exp(-X.^2-Y.^2-Z.^2);

[xsurf,ysurf] = meshgrid(-2:0.2:2);
zsurf = xsurf.^2-ysurf.^2;
slice(X,Y,Z,V,xsurf,ysurf,zsurf)
fig2plotly()

• Plot
• SSIM

Specify Interpolation Method

Create a slice plane through volumetric data. Specify the interpolation method for the data values.

Create a slice plane orthogonal to the x-axis at the value 0.8. Since the volume data is not defined for x values of 0.8, the slice function interpolates the nearby values. To use the nearest data point value, specify the interpolation method as 'nearest'.

  [X,Y,Z] = meshgrid(-2:2);
V = X.*exp(-X.^2-Y.^2-Z.^2);
xslice = 0.8;   
yslice = [];
zslice = [];
slice(X,Y,Z,V,xslice,yslice,zslice,'nearest')
fig2plotly()

• Plot
• SSIM