+// WGS84 numbers
+static const double EQURAD = 6378137; // equatorial radius
+static const double STRETCH = 1.003352810665; // equ./polar radius
+
+// Derived from the above
+static const double SQUASH = 0.99665839311; // 1/STRETCH
+static const double POLRAD = 6356823.77346; // EQURAD*SQUASH
+static const double iPOLRAD = 1.57311266701e-07; // 1/POLRAD
+