sakov / nn-c Goto Github PK

Line 31 of triangle.c clearly state that:

"Distribution of this code as part of a commercial system is permissible ONLY 
BY DIRECT ARRANGEMENT WITH THE AUTHOR."

The package as a whole marked as MIT License would give misleading message that 
may cause unintended license violation of using it.

-What steps will reproduce the problem?
Make a static 64-bit lib in VC++ 2012 using the source code. Write a simple 
main stub, link to the lib and then call nnpi_interpolate_points() in code.

- What is the expected output? What do you see instead?
The call shall succeed, but instead it crashes in transfernodes() at line:
/* Read the vertex coordinates. */
x = vertexloop[0] = pointlist[coordindex++];


- What version of the product are you using? On what operating system?
Using VC++ 2012, 64-bit. 32-bit build works as expected.

- Please provide any additional information below.
Does the lib ever work in 64-bit mode? I think something needs to be change in 
the Triangle code to make it work in 64-bit mode.

a sample, input data:
A:100 100 1
B:100 200 1
C:200 150 1

interpolation point at [135,185]

if i use a geometry intersect algorithm, the right weights like A:5% B:70% 
C:25%.
if i use this program, the weight of A is negative.

so, i think the Watson's algorithm (Compound Signed Decomposition) just work

at multiple vertex, maybe.

Henry Ho