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WPCG::WP_Vector2D Class Reference
#include <WP_Vector2D.h>
List of all members.
Detailed Description
this class represents a 2D vector
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Author:
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Copyright (C) 2001 W.P. van Paassen peter@paassen.tmfweb.nl
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; see the file COPYING. If not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
Constructor & Destructor Documentation
WPCG::WP_Vector2D::WP_Vector2D |
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Parameters:
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x |
the x component of the vector |
y |
the y component of the vector |
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WPCG::WP_Vector2D::~WP_Vector2D |
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[inline] |
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Member Function Documentation
void WPCG::WP_Vector2D::draw |
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scalar |
startx, |
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scalar |
starty |
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const |
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this function draws the vector using OpenGL -
Parameters:
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startx |
the x position of the start of this vector |
starty |
the y position of the start of this vector |
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scalar WPCG::WP_Vector2D::getDegreesBetween |
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const WP_Vector2D & |
v |
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const |
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this function computes the angle in degrees between two vectors -
Parameters:
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v |
a WP_Vector2D object representing the second vector for calculating the angle between two vectors |
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Returns:
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the angle in degrees
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scalar WPCG::WP_Vector2D::getRadsBetween |
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const WP_Vector2D & |
v |
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const |
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this function computes the angle in radians between two vectors -
Parameters:
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v |
a WP_Vector2D object representing the second vector for calculating the angle between two vectors |
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Returns:
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the angle in radians
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scalar WPCG::WP_Vector2D::length |
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const |
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this function computes the length of the vector -
Returns:
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the lenght of the vector
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scalar WPCG::WP_Vector2D::normalize |
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this function normalizes the vector -
Returns:
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the lenght of the vector before normalizing
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WP_Vector2D WPCG::WP_Vector2D::operator * |
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const WP_Matrix2D & |
m |
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const |
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this operator multiplies this vector by a 2D matrix -
Parameters:
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m |
a WP_Matrix2D object which represents the 2D matrix by which this vector is multiplied |
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Returns:
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a WP_Vector2D object containing the new values
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WP_Vector2D WPCG::WP_Vector2D::operator * |
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scalar |
s |
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const |
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this operator scales the vector by multiplying its values by a scalar -
Parameters:
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s |
the scalar by which this vector is scaled |
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Returns:
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a WP_Vector2D object representing the scaled vector
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scalar WPCG::WP_Vector2D::operator * |
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const WP_Vector2D & |
v |
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const |
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this operator computes the dot product of the two 2D vectors -
Parameters:
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v |
a WP_Vector2D object representing a vector by which this vector is multiplied to get the dot product |
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Returns:
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the dot product
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WP_Vector2D & WPCG::WP_Vector2D::operator *= |
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const WP_Matrix2D & |
m |
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this operator multiplies this vector by a 2D matrix -
Parameters:
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m |
a WP_Matrix2D object which represents the 2D matrix by which this vector is multiplied |
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Returns:
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a reference to this WP_Vector2D object containing the new values
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WP_Vector2D & WPCG::WP_Vector2D::operator *= |
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scalar |
s |
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this operator scales this vector by using multiplication -
Parameters:
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s |
the scalar by which this vector is scaled |
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Returns:
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a reference to this WP_Vector2D object containing the new values
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WP_Vector2D WPCG::WP_Vector2D::operator+ |
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const WP_Vector2D & |
v |
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const |
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this operator adds a vector to this vector -
Parameters:
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v |
a WP_Vector2D object representing the vector which is added to this vector |
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Returns:
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a WP_Vector2D object representing the vector after addition
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WP_Vector2D & WPCG::WP_Vector2D::operator+= |
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const WP_Vector2D & |
v |
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this operator adds a vector to this vector and assigns the result to this vector -
Parameters:
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v |
a WP_Vector2D object representing the vector which is added to this vector |
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Returns:
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a reference to this WP_Vector2D object containing the new values
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WP_Vector2D & WPCG::WP_Vector2D::operator- |
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this operator inverts the vector -
Returns:
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a reference to this WP_Vector2D object containing the inverted values
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WP_Vector2D WPCG::WP_Vector2D::operator- |
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const WP_Vector2D & |
v |
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const |
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this operator subtracts a vector from this vector -
Parameters:
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v |
a WP_Vector2D object representing the vector which is subtracted from this vector |
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Returns:
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a WP_Vector2D object representing the vector after subtraction
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WP_Vector2D & WPCG::WP_Vector2D::operator-= |
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const WP_Vector2D & |
v |
) |
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this operator subtracts a vector from this vector and assigns the result to this vector -
Parameters:
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v |
a WP_Vector2D object representing the vector which is subtracted from this vector |
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Returns:
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a reference to this WP_Vector2D object containing the new values
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WP_Vector2D WPCG::WP_Vector2D::operator/ |
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scalar |
s |
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const |
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this operator scales the vector by dividing its values by a scalar -
Parameters:
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s |
the scalar by which this vector is scaled |
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Returns:
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a WP_Vector2D object representing the scaled vector
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WP_Vector2D & WPCG::WP_Vector2D::operator/= |
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scalar |
s |
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this operator scales this vector by using division -
Parameters:
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s |
the scalar by which this vector is scaled |
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Returns:
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a reference to this WP_Vector2D object containing the new values
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WP_Vector2D & WPCG::WP_Vector2D::operator= |
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const WP_Vector2D & |
v |
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assignment operator -
Parameters:
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v |
the WP_Vector2D object which is copied to this object |
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Returns:
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a reference to this object containing the copied vector values
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bool WPCG::WP_Vector2D::orthogonal |
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const WP_Vector2D & |
v |
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const |
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this function determines if two vectors are orthogonal (dot product is +- 0.0) -
Parameters:
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v |
a WP_Vector2D object representing the second vector for calculating if the two vectors are orthogonal |
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Returns:
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a boolean indicating if the two vectors are orthogonal
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void WPCG::WP_Vector2D::perp |
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this function makes the vector perpendicular to itself (or rotates the vector 90 degrees) |
void WPCG::WP_Vector2D::richochet |
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WP_Vector2D |
v |
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this function computes the new vector after colliding to a line/plane/surface -
Parameters:
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v |
a WP_Vector2D object which represents the normal of the line/plane/surface against which this vector collides |
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Member Data Documentation
scalar WPCG::WP_Vector2D::data[3]
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an array of 3 scalars holding the vector's values. data[0] = x, data[1] = y, data[2] = 0.0f |
The documentation for this class was generated from the following files:
Generated on Tue Jan 28 20:26:44 2003 by
1.2.14 written by Dimitri van Heesch,
© 1997-2002