Implemented KKJ<->WGS84 transformations in C.

[ptas] / coordinate-system.h

diff --git a/coordinate-system.h b/coordinate-system.h
index 78a4620..7c3d100 100644 (file)
--- a/coordinate-system.h
+++ b/coordinate-system.h
@@ -1,8 +1,25 @@
 #ifndef COORDINATE_SYSTEM_H
 #define COORDINATE_SYSTEM_H
 
-void wgs84_to_kkj2(double inLatitude, double inLongitude, double *outLatitude, double *outLongitude);
+// Type for KKJ x/y coordinates
+typedef unsigned int KKJ;
 
-void kkj2_to_wgs84(double inLatitude, double inLongitude, double *outLatitude, double *outLongitude);
+/**
+ * Transformes WGS84 longitude/latitude coordinates to KKJ x/y coordinates.
+ * @param longitude the input longitude in degrees
+ * @param latitude the input latitude in degrees
+ * @param outX the result x (easting)
+ * @param outY the result y (northing)
+ */
+void WGS84lola_to_KKJxy(double longitude, double latitude, KKJ *outX, KKJ *outY);
+
+/**
+ * Transformes KKJ x/y coordinates to WGS84 longitude/latitude coordinates.
+ * @param x the input x (easting)
+ * @param y the input y (northing)
+ * @param outLongitude the result longitude in degrees
+ * @param outLatitude the result latitude in degrees
+ */
+void KKJxy_to_WGS84lola(KKJ x, KKJ y, double *outLongitude, double *outLatitude);
 
 #endif