code wiki / _hdl_build / nx_geo_centroid_gate.nx
nx_geo_centroid_gate.nx
buildroot/runtime/_hdl_build/nx_geo_centroid_gate.nx
about
nx_geo_centroid_gate.nx -- GATE for GEO-011 polygon centroid. Polygon = the 6e5 square with an EXTRA
collinear vertex (0,3e5) on its bottom edge (5 vertices). Proves:
area-weighted : centroid == (300000, 300000) -- the true center, UNCHANGED by the redundant vertex
vertex-mean : centroid == (240000, 300000) -- pulled toward the densely-sampled bottom edge
=> the two DIFFER (lat 300000 vs 240000): area-weighted is the robust/correct centroid.
Both exact integers (no float drift).
Evidence -> knowledge/status/geo_centroid.log (GEOCENTROIDGATE authored=organ ... verdict=GREEN).
license_tier: ORIGINAL
dependencies 2 imports · 0 importers
imports: nx_geo_centroid.nxnx_syscalls.nx
imported by: nobody (leaf or entry point)
call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown
structs
| none |
consts
| 13 | const GC_LOG: *u8 = "knowledge/status/geo_centroid.log" |
functions
| 15 | func gc_w(fd: i64, s: *u8) -> i64 { var n: i64 = 0; while s[n] != (0 as u8) { n = n + 1 } sys_write(fd, s, n); return 0 } |
| 16 | func gc_wn(fd: i64, v: i64) -> i64 { let bb: *u8 = sys_mmap(28); var m: i64=v; if m<0 {m=0-m; sys_write(fd,"-" as *u8,1)}; let t: *u8 = sys_mmap(28); var k: i64=0; if m==0 {t[0]=48;k=1}; while m>0 {t[k]=(48+(m%10)) as u8; m=m/10; k=k+1}; var i: i64=0; while i<k {bb[i]=t[k-1-i]; i=i+1}; sys_write(fd, bb, k); return 0 } |
| 18 | func gc_set(p: *i64, i: i64, lat: i64, lon: i64) -> i64 { p[i * 2] = lat; p[i * 2 + 1] = lon; return 0 } called by 1: main |
| 20 | func gc_emit(fd: i64, alat: i64, alon: i64, vlat: i64, vlon: i64, ok: i64) -> i64 |
| 29 | func main() -> i64 |