groonga/groonga [master] geo: return the value of correct distance according to quadrant type (Groonga-commit) - Groonga - fulltext search engine.

HAYASHI Kentaro	2012-07-10 14:35:16 +0900 (Tue, 10 Jul 2012)

  New Revision: e1a8ff500a9280c2d140d57296a16b1414eeed5d
  https://github.com/groonga/groonga/commit/e1a8ff500a9280c2d140d57296a16b1414eeed5d

  Log:
    geo: return the value of correct distance according to quadrant type
    
    Support to calculate the value of distance across the date line in
    south hemisphere.
    
    refs #1421

  Modified files:
    lib/geo.c

  Modified: lib/geo.c (+2 -1)
===================================================================

--- lib/geo.c    2012-07-10 15:07:19 +0900 (a6ee216)
+++ lib/geo.c    2012-07-10 14:35:16 +0900 (e474696)
@@ -1966,7 +1966,8 @@ grn_geo_distance_rectangle_raw(grn_ctx *ctx,
                                                          lat2);
       distance = (east_distance + west_distance) * GRN_GEO_RADIUS;
     } else {
-      if (quad_type == QUADRANT_1ST_TO_2ND) {
+      if (quad_type == QUADRANT_1ST_TO_2ND ||
+          quad_type == QUADRANT_4TH_TO_3RD) {
         longitude_delta = lng2 + M_2PI - lng1;
         latitude_delta = lat2 - lat1;
         slope = latitude_delta / longitude_delta;
-------------- next part --------------
HTML$B$NE:IU%U%!%$%k$rJ]4I$7$^$7$?(B...
Télécharger 


Groonga - fulltext search engine.

[Groonga-commit] groonga/groonga [master] geo: return the value of correct distance according to quadrant type