`contourslice`

Draws contour lines on slice planes of 3-D volume data.

Syntax

contourslice(V, Sx, Sy, Sz)

Draws contours of the volume V on the slices at Sx, Sy and Sz.

contourslice(X, Y, Z, V, Sx, Sy, Sz)

Uses the grid coordinates X, Y and Z.

contourslice(___, n)

Draws n contour levels per slice.

h = contourslice(___)

Also returns the graphics objects.

Description

Each slice cuts the volume with a plane and the values on that plane are contoured. This reveals the internal structure of scalar volume data, such as temperature or density, without drawing the whole volume.

Input arguments

V: 3-D array of values.
Sx, Sy, Sz: Positions of the slice planes, perpendicular to each axis. Use [] for none.
n: Number of contour levels in each slice.

Output arguments

h: Handles of the contour lines drawn.

Example

Slices of random volume

rng(1)
V = smooth3(rand(12, 12, 12));
h = contourslice(V, [4 8], [], [6], 5);
view(3)
disp(numel(h) > 0)

Output

contourslice