Thread Subject:

quiver

Hallo,
   i need your help. I am going to visualize the optical flow with 'quiver'. But it presents the NaN with dots. How can the results with the value of NaN not be showed?
Much Thanks!
Xin Jiang

"vagrom Jiang" <vagrom@mytum.de> wrote in message <gmcp85$ams$1@fred.mathworks.com>...
> Hallo,
> i need your help. I am going to visualize the optical flow with 'quiver'. But it presents the NaN with dots. How can the results with the value of NaN not be showed?
> Much Thanks!
> Xin Jiang

Hi,

remove the NaN elements before the call to quiver, eg

rem_index = find(isnan(U));
U(rem_index) = [ ];
V(rem_index) = [ ];
X(rem_index) = [ ];
Y(rem_index) = [ ];
quiver(X,Y,U,V)