[R] how to derive true surface area from `computeContour3d' (misc3d package) -- follow up

2013-11-08 Thread j. van den hoff
regarding my previous mail for this topic, I have in the meantime identified my misconception. actually, `computeContour3d' returns the vertices just fine in the correct coordinate frame. the misconception was caused basically by assuming that the `level' argument was a fractional

Re: [R] how to derive true surface area from `computeContour3d' (misc3d package) -- follow up

2013-11-08 Thread Barry Rowlingson
On Fri, Nov 8, 2013 at 1:01 PM, j. van den hoff veedeeh...@googlemail.com wrote: ps: it of course would still be nice, if the surface area (or a vector containing the individual triangle areas) were returned to the caller as well ... Does the 'surfaceArea' function in the sp package do what

Re: [R] how to derive true surface area from `computeContour3d' (misc3d package) -- follow up

2013-11-08 Thread j. van den hoff
On Fri, 08 Nov 2013 15:32:00 +0100, Barry Rowlingson b.rowling...@lancaster.ac.uk wrote: On Fri, Nov 8, 2013 at 1:01 PM, j. van den hoff veedeeh...@googlemail.com wrote: ps: it of course would still be nice, if the surface area (or a vector containing the individual triangle areas) were