Tesseract: classify/fpoint.cpp Source File

00001 
00019 /* =================
00020  Include Files and Type Defines
00021  ==================== */
00022 #include "const.h"
00023 #include "fpoint.h"
00024 #include <stdio.h>
00025 #include <math.h>
00026 
00027 /* =================
00028               Public Code
00029  ==================== */
00041 FLOAT32 NormalizedAngleFrom(FPOINT *Point1,
00042                             FPOINT *Point2,
00043                             FLOAT32 FullScale) {
00044   FLOAT32 Angle;
00045   FLOAT32 NumRadsInCircle = 2.0 * PI;
00046 
00047   Angle = AngleFrom (*Point1, *Point2);
00048   if (Angle < 0.0)
00049     Angle += NumRadsInCircle;
00050   Angle *= FullScale / NumRadsInCircle;
00051   if (Angle < 0.0 || Angle >= FullScale)
00052     Angle = 0.0;
00053   return (Angle);
00054 
00055 }                                /* NormalizedAngleFrom */