diff options
| author | Alan Aguiar <alanjas@hotmail.com> | 2012-02-26 23:15:06 (GMT) |
|---|---|---|
| committer | Alan Aguiar <alanjas@hotmail.com> | 2012-02-26 23:15:06 (GMT) |
| commit | 54e57e7ba5ad7ae0508e6005c798db0a497e6578 (patch) | |
| tree | 56136474c1d203b1d974b43982bb22c4276d1c55 | |
| parent | 8a4c1748efa00bb215a06a3618ff32bdf7ba9c6c (diff) | |
add CVecvtor file
| -rw-r--r-- | src/api/CVector.py | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/api/CVector.py b/src/api/CVector.py new file mode 100644 index 0000000..bae033c --- /dev/null +++ b/src/api/CVector.py @@ -0,0 +1,119 @@ +import math
+from math import *
+
+EPSILON = 0.000001
+
+class CVector(object):
+
+ x = 0.0
+ y = 0.0
+
+ def __init__(self, aX = 0.0, aY = 0.0):
+ self.x = aX
+ self.y = aY
+
+ # Initialize the vector, giving (x,y) cartesian coordinates.
+ def setXY(self, aX, aY):
+ self.x = aX
+ self.y = aY
+
+ # Sets the x value of the vector.
+ def setX(self, aX):
+ self.x = aX
+
+ # Sets the y value of the vector.
+ def setY(self, aY):
+ self.y = aY
+
+ def setVec(self, aVec):
+ self.x = aVec.x;
+ self.y = aVec.y;
+
+ # Initialize the vector, giving polar coordinates (angle and magnitude).
+ def setPolar(self, aAngle, aMag):
+ # Calculate cartesian coordinates.
+ self.x = aMag * cos(aAngle)
+ self.y = aMag * sin(aAngle)
+
+ # Add the vector aVec to itself.
+ def add(self, aVec):
+ self.x += aVec.x
+ self.y += aVec.y
+
+ def addXY(self, aX, aY):
+ self.x += aX
+ self.y += aY
+
+ # Substract the vector aVec from itself.
+ def sub(self, aVec):
+ self.x -= aVec.x
+ self.y -= aVec.y
+
+ def subXY(self, aX, aY):
+ self.x -= aX
+ self.y -= aY
+
+ # Multiplies the vector by a scalar.
+ def mul(self, aScale):
+ self.x *= aScale
+ self.y *= aScale
+
+ # Returns the magnitude of the vector.
+ def magnitude(self):
+ return math.sqrt(self.x * self.x + self.y * self.y)
+
+ def magnitudeSquared(self):
+ return (self.x * self.x + self.y * self.y)
+
+ # Normalizes the vector. The vector will have a magnitude of 1.
+ def normalize(self):
+ self.m = self.magnitude();
+
+ # Check division by zero.
+ if (self.m > EPSILON):
+ self.x /= self.m;
+ self.y /= self.m;
+
+ # Truncates the vector assuring that the magnitude not exceed the limit.
+ def truncate(self, aLength):
+ if (self.magnitude() > aLength):
+ self.normalize()
+ self.mul(aLength)
+
+ #def heading(self):
+ # """Return the direction of the Vector in radians."""
+ # return direction(self.x, self.y)
+
+ #def direction(self):
+ # """Return the direction component of a vector (in radians), given
+ # cartesian coordinates.
+ # """
+ # if x > 0:
+ # if y >= 0:
+ # return atan(y / x)
+ # else:
+ # return atan(y / x) + TwoPI
+ # elif x == 0:
+ # if y > 0:
+ # return HalfPI
+ # elif y == 0:
+ # return 0
+ # else:
+ # return OneAndHalfPI
+ # else:
+ # return atan(y / x) + PI
+
+ def destroy(self):
+ pass
+
+
+
+# public function dot( aVector:CVector ): Number
+# {
+# return x * aVector.x + y * aVector.y;
+# }
+#
+# public function dotXY( aX:Number, aY:Number ):Number
+# {
+# return x * aX + y * aY;
+# }
\ No newline at end of file |