Re: [R] vector field from a 3D scalar field

2013-03-21 Thread David Winsemius
On Mar 21, 2013, at 4:40 PM, Waichler, Scott R wrote: > I have a 3D field of a scalar variable (x, y, z, value). Is there a way to > generate a vector field from this data--gradient at defined points? I found > the rasterVis package for 2D data, but as yet nothing for 3D data. Can't you just

[R] vector field from a 3D scalar field

2013-03-21 Thread Waichler, Scott R
I have a 3D field of a scalar variable (x, y, z, value). Is there a way to generate a vector field from this data--gradient at defined points? I found the rasterVis package for 2D data, but as yet nothing for 3D data. Thanks, Scott Waichler Pacific Northwest National Laboratory Richland, WA sc