Math operations on 2D lines. More...

#include <line_math.h>

Static Public Member Functions

static Pointf closest_point (const Pointf &P, const Pointf &A, const Pointf &B)
 Return the Point on the line from A to B closest to point P. More...
 
static float closest_point_relative (const Pointf &P, const Pointf &A, const Pointf &B)
 Return the relative position (0-1) of the point R on the line from A to B closest to point P. More...
 
static Pointf midpoint (const Pointf &A, const Pointf &B)
 Return the midpoint of the line from point A to point B. More...
 
static float point_right_of_line (float x, float y, float *line)
 Return [<0, 0, >0] if the Point P is right, on or left of the line trough A,B. More...
 
static float point_right_of_line (float x, float y, float line_x1, float line_y1, float line_x2, float line_y2)
 Point right of line. More...
 
static float point_right_of_line (const Pointf &A, const Pointf &B, const Pointf &P)
 Point right of line. More...
 

Detailed Description

Math operations on 2D lines.

Obsolete - Use Line, LineRay, LineSegment

Member Function Documentation

static Pointf clan::LineMath::closest_point ( const Pointf P,
const Pointf A,
const Pointf B 
)
static

Return the Point on the line from A to B closest to point P.

Parameters
Ppoint P
Apoint A
Bpoint B
static float clan::LineMath::closest_point_relative ( const Pointf P,
const Pointf A,
const Pointf B 
)
static

Return the relative position (0-1) of the point R on the line from A to B closest to point P.

Parameters
Ppoint P
Apoint A
Bpoint B
static Pointf clan::LineMath::midpoint ( const Pointf A,
const Pointf B 
)
static

Return the midpoint of the line from point A to point B.

Also See LineSegment

Parameters
A= point A
B= point B
Returns
The point
static float clan::LineMath::point_right_of_line ( float  x,
float  y,
float *  line 
)
static

Return [<0, 0, >0] if the Point P is right, on or left of the line trough A,B.

Also See Line and LineSegment

Parameters
x= x coordinate of the point being tested.
y= y coordinate of the point being tested.
line= The line. A pointer to a float array with the elements {x1,y1,x2,y2}.
static float clan::LineMath::point_right_of_line ( float  x,
float  y,
float  line_x1,
float  line_y1,
float  line_x2,
float  line_y2 
)
static

Point right of line.

Parameters
x= value
y= value
line_x1= value
line_y1= value
line_x2= value
line_y2= value
Returns
float
static float clan::LineMath::point_right_of_line ( const Pointf A,
const Pointf B,
const Pointf P 
)
static

Point right of line.

Parameters
A= Pointf
B= Pointf
P= Pointf
Returns
float

The documentation for this class was generated from the following file: