2D line segment More...
#include <line_segment.h>
Public Member Functions | |
| LineSegment2x () | |
| LineSegment2x (const LineSegment2x< Type > ©) | |
| LineSegment2x (const Vec2< Type > &point_p, const Vec2< Type > &point_q) | |
| LineSegment2x< Type > & | clip (const Rectx< Type > &rect, bool &clipped) |
| Clip this line to a rectangle. | |
| bool | collinear (const LineSegment2x< Type > &second) const |
| Return true if two line segments are collinear. (All points are on the same line.) | |
| Vec2< Type > | get_intersection (const LineSegment2x< Type > &second, bool &intersect) const |
| Return the intersection point of two lines. | |
| Vec2< Type > | get_midpoint () const |
| Get the midpoint of this line. | |
| bool | intersects (const LineSegment2x< Type > &second, bool collinear_intersect) const |
| Return true if two line segments intersect. | |
| Vec2< Type > | normal () const |
| Return the normal vector of the line from point A to point B. | |
| bool | operator!= (const LineSegment2x< Type > &line) const |
| != operator. | |
| LineSegment2x< Type > & | operator= (const LineSegment2x< Type > ©) |
| = operator. | |
| bool | operator== (const LineSegment2x< Type > &line) const |
| == operator. | |
| Type | point_distance (const Vec2< Type > &point) |
| Return the distance from a point to a line. | |
| Type | point_right_of_line (const Vec2< Type > &point) const |
| Return [<0, 0, >0] if the Point P is right, on or left of the line trough A,B. | |
Public Attributes | |
| Vec2< Type > | p |
| Start point on the line. | |
| Vec2< Type > | q |
2D line segment
A line segment has a start point and an end point
These line templates are defined for: int (LineSegment2i), float (LineSegment2f), double (LineSegment2d)
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| LineSegment2x< Type > & clan::LineSegment2x< Type >::clip | ( | const Rectx< Type > & | rect, |
| bool & | clipped ) |
Clip this line to a rectangle.
If clipping was not successful, this object is undefined
| rect | = Rectangle to clip to |
| clipped | = On Return: true if the line could be clipped, false if line exists outside the rectangle |
| bool clan::LineSegment2x< Type >::collinear | ( | const LineSegment2x< Type > & | second | ) | const |
Return true if two line segments are collinear. (All points are on the same line.)
| second | = The second line to check with |
| Vec2< Type > clan::LineSegment2x< Type >::get_intersection | ( | const LineSegment2x< Type > & | second, |
| bool & | intersect ) const |
Return the intersection point of two lines.
| second | = Second line. |
| intersect | = On Return: The intercept. If the lines are parallel, this contains this line's first point |
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Get the midpoint of this line.
References clan::LineSegment2x< Type >::p, and clan::LineSegment2x< Type >::q.
| bool clan::LineSegment2x< Type >::intersects | ( | const LineSegment2x< Type > & | second, |
| bool | collinear_intersect ) const |
Return true if two line segments intersect.
| second | = Second line. |
| collinear_intersect | = true if a collision is reported when all points are on the same line. |
| Vec2< Type > clan::LineSegment2x< Type >::normal | ( | ) | const |
Return the normal vector of the line from point A to point B.
When using Vec2i, the vector is an 8 bit fraction (multiplied by 256)
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!= operator.
References clan::line, clan::LineSegment2x< Type >::p, and clan::LineSegment2x< Type >::q.
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= operator.
References clan::LineSegment2x< Type >::p, and clan::LineSegment2x< Type >::q.
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== operator.
References clan::line, clan::LineSegment2x< Type >::p, and clan::LineSegment2x< Type >::q.
| Type clan::LineSegment2x< Type >::point_distance | ( | const Vec2< Type > & | point | ) |
Return the distance from a point to a line.
| point | = The point. |
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Return [<0, 0, >0] if the Point P is right, on or left of the line trough A,B.
| point | = The point |
References clan::LineSegment2x< Type >::p, clan::point, and clan::LineSegment2x< Type >::q.
| Vec2<Type> clan::LineSegment2x< Type >::p |
| Vec2<Type> clan::LineSegment2x< Type >::q |