[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
## 3D surface plot of nongridded x,y,z

**From**: |
Bill Simpson |

**Subject**: |
3D surface plot of nongridded x,y,z |

**Date**: |
Thu, 5 Nov 1998 14:05:57 -0600 (CST) |

I want to produce a 3D plot of some x,y,z data where x and y are random
(nongridded). An example is the heights of trees (z) in a forest (at
random x,y locations). I want a plot that uses Delaunay triangulation and
makes a triangular mesh.
In Matlab it would go like this
>* % Generate some data:*
>* x = randn(1,200);*
>* y = randn(1,200);*
>* r = sqrt(x.^2 + y.^2);*
>* z = exp(-r.^2);*
>
>* % Do the plot:*
>* tri = delaunay(x,y);*
>* trisurf(tri,x,y,z)*
>
Can I do this in Octave?
Thanks very much for any help.
Best wishes,
Bill Simpson

[Prev in Thread] |
**Current Thread** |
[Next in Thread] |

**3D surface plot of nongridded x,y,z**,
*Bill Simpson* **<=**