Revision 0:55dbdc9614f8, committed 2012-10-13

Comitter:

AlexAllen

Date:

Sat Oct 13 12:22:02 2012 +0000

Commit message:

A library for vectors

Changed in this revision

diff -r 000000000000 -r 55dbdc9614f8 vectr.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vectr.cpp	Sat Oct 13 12:22:02 2012 +0000
@@ -0,0 +1,242 @@
+/* Copyright (c) 2011 Alex Allen, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
+ * and associated documentation files (the "Software"), to deal in the Software without restriction, 
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute, 
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is 
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or 
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+ 
+#include "vectr.h"
+#include <cmath>
+#include <iostream>
+using namespace std;
+
+
+vectr::vectr() 
+{ 
+    x=y=z=0; 
+}
+
+vectr::vectr(double num) 
+{ 
+    x=y=z=num; 
+}
+
+vectr::vectr(double a, double b)
+{
+    x = a;
+    y = b;
+    z = 0;
+}
+
+vectr::vectr(double a, double b, double c)
+{
+    x = a;
+    y = b;
+    z = c;
+}
+
+void vectr::set(double a, double b, double c)
+{
+    x = a;
+    y = b;
+    z = c;
+}
+
+void vectr::setx(double a)
+{
+    x = a;
+}
+
+void vectr::sety(double b)
+{
+    y = b;
+}
+
+void vectr::setz(double c)
+{
+    z = c;
+}
+
+double vectr::getx()
+{
+    return x;
+}
+
+double vectr::gety()
+{
+    return y;
+}
+
+double vectr::getz()
+{
+    return z;
+}
+
+double vectr::mag()
+{
+    return sqrt(x*x + y*y + z*z);
+}
+
+double vectr::mag2()
+{
+    return x*x + y*y + z*z;
+}
+
+vectr vectr::unit()
+{
+    double size = sqrt(x*x+y*y+z*z);
+    vectr temp;
+
+    temp.x = x/size;
+    temp.y = y/size;
+    temp.z = z/size;
+
+    return temp;
+}
+
+vectr vectr::operator+(vectr ob2)
+{
+    vectr temp;
+
+    temp.x = x + ob2.x;
+    temp.y = y + ob2.y;
+    temp.z = z + ob2.z;
+
+    return temp;
+}
+
+vectr vectr::operator-(vectr ob2)
+{
+    vectr temp;
+
+    temp.x = x - ob2.x;
+    temp.y = y - ob2.y;
+    temp.z = z - ob2.z;
+
+    return temp;
+}
+
+double vectr::operator*(vectr ob2)
+{
+    return x*ob2.x + y*ob2.y + z*ob2.z;
+}
+
+vectr vectr::operator*(double num)
+{
+    vectr temp;
+
+    temp.x = x * num;
+    temp.y = y * num;
+    temp.z = z * num;
+
+    return temp;
+}
+
+vectr operator*(double num, vectr ob)
+{
+    vectr temp;
+
+    temp.x = ob.x * num;
+    temp.y = ob.y * num;
+    temp.z = ob.z * num;
+
+    return temp;
+}
+
+vectr vectr::operator%(vectr ob2)
+{
+    vectr temp;
+
+    temp.x = y * ob2.z - z * ob2.y;
+    temp.y = z * ob2.x - x * ob2.z;
+    temp.z = x * ob2.y - y * ob2.x;
+
+    return temp;
+}
+
+vectr vectr::operator/(double num)
+{
+    vectr temp;
+
+    temp.x = x / num;
+    temp.y = y / num;
+    temp.z = z / num;
+
+    return temp;
+}
+
+vectr operator/(double num, vectr ob)
+{
+    vectr temp;
+
+    temp.x = num / ob.x;
+    temp.y = num / ob.y;
+    temp.z = num / ob.z;
+
+    return temp;
+}
+
+double vectr::operator/(vectr ob2)
+{
+    ob2.x /= 1.0;
+    ob2.y /= 1.0;
+    ob2.z /= 1.0;
+
+    return x*ob2.x + y*ob2.y + z*ob2.z;
+}
+
+vectr vectr::operator+=(vectr ob2)
+{
+    x += ob2.x;
+    y += ob2.y;
+    z += ob2.z;
+
+    return *this;
+}
+
+vectr vectr::operator-=(vectr ob2)
+{
+    x -= ob2.x;
+    y -= ob2.y;
+    z -= ob2.z;
+
+    return *this;
+}
+
+vectr vectr::operator*=(double num)
+{
+    x *= num;
+    y *= num;
+    z *= num;
+
+    return *this;
+}
+
+vectr vectr::operator/=(double num)
+{
+    x /= num;
+    y /= num;
+    z /= num;
+
+    return *this;
+}
+
+ostream &operator<<(ostream &stream, vectr ob)
+{
+    stream << "(" << ob.x << ", ";
+    stream << ob.y << ", ";
+    stream << ob.z << ")";
+
+    return stream;
+}
\ No newline at end of file

diff -r 000000000000 -r 55dbdc9614f8 vectr.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vectr.h	Sat Oct 13 12:22:02 2012 +0000
@@ -0,0 +1,70 @@
+/* Copyright (c) 2011 Alex Allen, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
+ * and associated documentation files (the "Software"), to deal in the Software without restriction, 
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute, 
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is 
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or 
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+ 
+ #ifndef VECTR
+
+#include <iostream>
+using namespace std;
+
+class vectr
+{
+    double x,y,z;
+    
+    public:
+    
+    vectr(); // initialises vector as all 0s
+    vectr(double num); // initialises vector as all num
+    vectr(double a, double b); // x = a, y = b, z = 0
+    vectr(double a, double b, double c); // x = a, y = b, z = c
+    
+    void set(double a, double b, double c); // sets all values of the vector
+    void setx(double a);  // sets the x component
+    void sety(double b); // sets the y component
+    void setz(double c);  // sets the z component
+    
+    double getx(); // gets the x component
+    double gety(); // gets the y component
+    double getz(); // gets the z component
+    
+    double mag(); // returns magnitude of the vector
+    double mag2(); // returns magnitude squared of the vector
+
+    vectr unit(); // returns the unit vector
+    vectr operator+(vectr ob2); // output = this + ob2
+    vectr operator-(vectr ob2); // output = this - ob2
+    double operator*(vectr ob2); // output = dot product of this and ob2
+    vectr operator*(double num); // output = this * num
+    
+    friend vectr operator*(double num, vectr ob); // output = num * ob
+    vectr operator%(vectr ob2); // output = cross product of this and ob2
+    vectr operator/(double num); // output = this / num
+    friend vectr operator/(double num, vectr ob); // output = num * 1/ob
+    
+    // output = dot product of this and 1/ob
+    double operator/(vectr ob2);
+    vectr operator+=(vectr ob2);
+    vectr operator-=(vectr ob2);
+    vectr operator*=(double num);
+    vectr operator/=(double num);
+    
+    // output in the form "(x, y, z)"
+    friend ostream &operator<<(ostream &stream, vectr ob);
+};
+
+#define VECTR 1
+#endif
\ No newline at end of file