code wiki / _hdl_build / nx_geo_osmrender.nx

nx_geo_osmrender.nx

buildroot/runtime/_hdl_build/nx_geo_osmrender.nx

14124 B254 linesdepth 3pulls 3 transitivereach 0 importersview sourcekind tooltopic geo

docs dependencies structs consts functions

about

nx_geo_osmrender.nx -- GEO-007 the REAL map engine: renders ACTUAL OpenStreetMap geography (knowledge/geo/osm/lowman.tsv = real ways of lower Manhattan, ODbL) to a styled vector map. Each line: "<class>\t<lon_microdeg>,<lat_microdeg> <lon>,<lat> ...". Computes the bbox, projects every vertex (equirectangular, cos-lat aspect), classifies by OSM road type, and draws LAYERED cartographic strokes (water/park fills, then footways, minor, secondary, major roads on top). Pure-integer projection. NO third-party map library. Writes sites/nishifamily/maps/index.html.

dependencies 2 imports · 0 importers

imports: nx_syscalls.nxnx_itoa_lib.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

9	const K_MAGIC_4194304: i64 = 4194304
10	const K_MAGIC_999000000: i64 = 999000000

functions

12	func r_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 } called by 4: r_emit r_esc r_label main calls 1: sys_write
17	func r_n(fd: i64, v: i64) -> i64 { nxi_fd(fd, v); return 0 } called by 3: r_emit r_label main calls 1: nxi_fd
18	func r_read(path: u8, buf: u8, cap: i64) -> i64 called by 1: main calls 3: sys_openat_rd sys_read sys_close
25	func r_int(buf: *u8, s: i64, e: i64) -> i64 called by 3: r_bbox r_emit r_label
34	func r_to(buf: *u8, i: i64, lim: i64, d: i64) -> i64 called by 4: r_bbox r_emit r_label main
39	func r_starts(buf: u8, s: i64, e: i64, lit: u8) -> i64 called by 1: r_code
45	func r_code(buf: *u8, s: i64, e: i64) -> i64 called by 1: main calls 1: r_starts
67	func r_bbox(buf: u8, cs: i64, ce: i64, box: i64) -> i64 called by 1: main calls 2: r_to r_int
89	func r_emit(fd: i64, buf: u8, cs: i64, ce: i64, pj: i64, code: i64) -> i64 called by 1: main calls 4: r_w r_to r_int r_n
124	func r_esc(fd: i64, buf: *u8, s: i64, e: i64) -> i64 called by 1: r_label calls 2: r_w sys_write
136	func r_label(fd: i64, buf: u8, ns: i64, ne: i64, cs: i64, ce: i64, pj: i64) -> i64 called by 1: main calls 5: r_to r_int r_w r_n r_esc
171	func main(argc: i64, argv: *i64) -> i64 calls 12: sys_mmap r_read r_w sys_exit r_to r_bbox+6