remi cormier / Trigo

Trigonomectric constants Polar and spherical to rectangular coordinates transform

Dependents:   DISCO-F746NG_Lidar ZAILLEL_Interface

Diff: Trigo.cpp

Revision:
1:eb028056d162
Parent:
0:2f533ad7c611
Child:
4:a6b0fd2c4f85
--- a/Trigo.cpp	Sun Nov 25 11:13:56 2012 +0000
+++ b/Trigo.cpp	Sun Nov 25 11:35:18 2012 +0000
@@ -1,6 +1,10 @@
 #include "mbed.h"
 #include "Trigo.h"
 
+// Trigo Library
+// trogonometric constants and utilities
+// rémi cormier 2012
+
 void RecPol(float x, float y, float *r, float *a)
 {*r=sqrt(x*x+y*y);
 if (x==0.0)
@@ -8,15 +12,15 @@
         {*a=0.0;}
      else   
         {if (y>=0.0)
-            {*a=Pis2;}
+            {*a=halfPi;}
         else
-            {*a=-Pis2;}}}
+            {*a=-halfPi;}}}
 else
     {*a=atan(y/x);
     if(x<0)
         {*a=Pi+*a;}
     if (*a>Pi)
-        {*a=*a-DeuxPi;}
+        {*a=*a-twoPi;}
     }   
 }