fix issue #95 #97 - added getTotalLength(), getAverageLength()

libraries/AverageAngle/AverageAngle.cpp

@@ -1,7 +1,7 @@
 //
 //    FILE: AverageAngle.cpp
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.1.1
+// VERSION: 0.1.2
 // PURPOSE: class for averaging angles
 //     URL: https://github.com/RobTillaart/Arduino
 //
@@ -9,7 +9,7 @@
 //
 // 0.1.0 2017-11-21 initial version
 // 0.1.1 2017-12-09 fixed negative values of average
-//
+// 0.1.2 2018-03-30 added getAverageLength, getTotalLength + zero-test
 
 #include "AverageAngle.h"
 
@@ -30,8 +30,8 @@ void AverageAngle::add(float alpha, float length)
   {
     alpha *= (PI / 180.0);
   }
-  _sumx += cos(alpha) * length;
-  _sumy += sin(alpha) * length;
+  _sumx += (cos(alpha) * length);
+  _sumy += (sin(alpha) * length);
   _count++;
 }
 
@@ -53,5 +53,16 @@ float AverageAngle::getAverage()
   return angle;
 }
 
+float AverageAngle::getTotalLength()
+{
+  if (_count == 0) return 0;
+  return hypot(_sumy, _sumx);
+}
+
+float AverageAngle::getAverageLength()
+{
+  if (_count == 0) return 0;
+  return hypot(_sumy, _sumx) / _count;
+}
 
 // END OF FILE

libraries/AverageAngle/AverageAngle.h

@@ -3,7 +3,7 @@
 //
 //    FILE: AverageAngle.h
 //  AUTHOR: Rob dot Tillaart at gmail dot com
-// VERSION: 0.1.1
+// VERSION: 0.1.2
 // PURPOSE: class for averaging angles
 // HISTORY: See AverageAngle.cpp
 //
@@ -18,9 +18,7 @@
 #include "WProgram.h"
 #endif
 
-#include "Printable.h"
-
-#define AVERAGE_ANGLE_LIB_VERSION "0.1.1"
+#define AVERAGE_ANGLE_LIB_VERSION "0.1.2"
 
 class AverageAngle
 {
@@ -33,6 +31,10 @@ public:
     void reset();
     int  count() { return _count; };
     float getAverage();
+
+    float getTotalLength();
+    float getAverageLength();
+
     enum AngleType type() { return _type; };
 
 private:

libraries/AverageAngle/library.json

@@ -15,7 +15,7 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/Arduino.git"
   },
-  "version":"0.1.1",
+  "version":"0.1.2",
   "frameworks": "arduino",
   "platforms": "*",
   "export": {

libraries/AverageAngle/library.properties

@@ -1,5 +1,5 @@
 name=AverageAngle
-version=0.1.1
+version=0.1.2
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Library to average angles