Re: [R] How to define and calculate volume of 3D polygon?

2014-05-19 Thread Duncan Murdoch
On 19/05/2014, 10:42 AM, Alexander Shenkin wrote: Hi Folks, I have a set of x,y,z points in 3D space that defines the outline of a tree crown (5 - 15 perimeter points + 1 top & bottom point). I would like to calculate the volume of the corresponding 3D polygon based on those points. I have been

[R] How to define and calculate volume of 3D polygon?

2014-05-19 Thread Alexander Shenkin
Hi Folks, I have a set of x,y,z points in 3D space that defines the outline of a tree crown (5 - 15 perimeter points + 1 top & bottom point). I would like to calculate the volume of the corresponding 3D polygon based on those points. I have been able to use geometry::convhulln, but I think t