| 14,7 → 14,7 |
|---|
| Winkelfunktionen sin, cos und arctan in |
| brute-force Art: Sehr Schnell, nicht sonderlich genau, aber ausreichend |
| Sinus Funktion von Nick666 vereinfacht |
| Stand 30.9.2007 |
| Stand 1.10.2007 |
| ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| */ |
| #include "main.h" |
| 21,10 → 21,10 |
|---|
| |
| |
| // arctan Funktion: Eingabewert x,y Rueckgabe =arctan(x,y) in grad |
| int arctan_i(long signed int x, long signed int y) |
| int arctan_i( signed int x, signed int y) |
| { |
| short int change_xy = 0; |
| long signed int i; |
| signed int i; |
| long signed int wert; |
| int return_value; |
| |
| 44,15 → 44,15 |
|---|
| |
| if (wert <=268) //0...0.0,268 entsprechend 0..15 Grad |
| { |
| return_value = (int)((wert*100)/(268-0)*(15-0)/100) +0; |
| return_value = (signed int)((wert*100)/(268-0)*(15-0)/100) +0; |
| } |
| else if (wert <=578) //0,268...0.0,568 entsprechend 15..30 Grad |
| { |
| return_value = (int)((((wert-268)*100)/(578-268)*(30-15))/100) +15; |
| return_value = (signed int)((((wert-268)*100)/(578-268)*(30-15))/100) +15; |
| } |
| else //0,568...1 entsprechend 30..45 Grad |
| { |
| return_value = (int)((((wert-578)*50)/(1000-578)*(45-30))/50) +30; |
| return_value = (signed int)((((wert-578)*50)/(1000-578)*(45-30))/50) +30; |
| } |
| |
| if (change_xy == 0) return_value = 90-return_value; //Quadrant 45..90 Grad |