Three-dimensional velocity plot
Syntax
quiver3(Z,U,V,W)
quiver3(X,Y,Z,U,V,W)
quiver3(...,scale)
quiver3(...,LineSpec
)
quiver3(...,LineSpec
,'
filled'
)
h = quiver3(...)
Description
A three-dimensional quiver plot displays vectors with components (u,v,w) at the points (x,y,z).
quiver3(Z,U,V,W)
plots the vectors at the equally spaced surface points specified by matrix Z
. quiver3
automatically scales the vectors based on the distance between them to prevent them from overlapping.
quiver3(X,Y,Z,U,V,W)
plots vectors with components (u,v,w) at the points (x,y,z). The matrices X
, Y
, Z
, U
, V
, W
must all be the same size and contain the corresponding position and vector components.
quiver3(...,scale)
automatically scales the vectors to prevent them from overlapping, then multiplies them by scale
. scale
=
2
doubles their relative length and scale
=
0.5
halves them. Use scale = 0
to plot the vectors without the automatic scaling.
quiver3(...,LineSpec
)
specify line type and color using any valid LineSpec
.
quiver3(...,LineSpec
,
'filled')
fills markers specified by LineSpec
.
h = quiver3(...)
returns a vector of Line handles.
Examples
Plot the surface normals of the function :
[X,Y] = meshgrid(-
2:0.25:2,-
1:0.2:1);
Z = X.* exp(-
X.^2 -
Y.^2);
[U,V,W] = surfnorm
(X,Y,Z);
quiver3(X,Y,Z,U,V,W,0.5);
hold on
surf(X,Y,Z);
colormap hsv
view(-35,45)
axis ([-2 2 -1 1 -.6 .6])
hold off
See Also
axis
, contour
, LineSpec
, plot
, plot3
, quiver
, surfnorm
, view
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