fix: free memory on failure
perf: made it so interp2_realloc() will never fail if reducing array size
feat: added client data pointer for caller convenience
Removed address operator not needed for function pointer
Need to recompute influence maps after changing smoothing parameter
Changed from blkflg to influence flag array
Additional tweaks -- now 11 times faster than original version
Doubled calculation speed and exposed raw weight computation
Minor improvement
Removed stray semicolon in interp2_realloc
Really minor tweaks
Significant speed improvement
Added accessor functions for minimum spacing and smoothing parameters
Changed radius specification to diameter and added usage comment
Fixed a number of serious bugs in initial implementation
Added interp2_realloc() call, exposed interp2_analyze() and code improvements
Created routines for interpolating anisotropic 2-D samples
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