#include <points.H>
Inheritance diagram for mlib::XYline:
Public Member Functions | |
| Line () | |
| Default constructor. Creates a line with the results of the default constructors for the point and vector classes used. | |
| Line (const XYpt &p, const XYvec &v) | |
Constructor that creates a line containing the point p and moving along the direction of vector v. Alternately creates a line segment with p as one endpoint and ( p + v ) as the other endpoint. | |
| Line (const XYpt &p1, const XYpt &p2) | |
Constructor that creates the line going through points p1 and p2. Alternately creates a line segment with endpoints p1 and p2. | |
| const XYpt & | point () const |
| XYpt & | point () |
| const XYvec & | vector () const |
| XYvec & | vector () |
| bool | is_valid () const |
| Is the line valid (i.e. has a vector with non-zero length). | |
| XYpt | endpt () const |
| Returns the second endpoint of the line when treated as a line segment. | |
| XYpt | midpt () const |
| Returns the midpoint of the line when treated as a line segment. | |
| double | length () const |
| Returns the length of the line when treated as a line segment. | |
| bool | operator== (const Line< XYline, XYpt, XYvec > &l) const |
| Are the two line's points and vectors exactly equal? | |
| double | dist (const XYpt &p) const |
| Returns the distance from the point to the line. | |
| XYpt | project (const XYpt &p) const |
| Returns closest point on line to given point p. | |
| XYpt | project_to_seg (const XYpt &p) const |
| Finds the nearest point on this line segment to the given point. | |
| XYpt | project_to_seg (const XYline &l) const |
| Finds the nearest point on this line segment to the given line. | |
| XYpt | reflection (const XYpt &p) const |
| XYpt | intersect (const XYline &l) const |
| Returns the closest point on this line to the given line l. | |
| bool | intersect_segs (const XYline &l, XYpt &inter) const |
| Returns true if this line, treated as a segment, intersects the given line, also treated as a segment. | |
| bool | intersect_segs (const XYline &l) const |
| Same as Line<L,P,V>::intersect_segLine(const L& l, P& inter) except without the argument to return the intersection point. | |
| bool | intersect_seg_line (const XYline &l, XYpt &inter) const |
| Returns true if this line, treated as a segment, intersects the given line, also treated as a line. | |
Constructors | |
| XYline () | |
| XYline (CXYpt &p, CXYvec &v) | |
| XYline (CXYpt &p1, CXYpt &p2) | |
Protected Attributes | |
| XYpt | _point |
| XYvec | _vector |
Definition at line 602 of file points.H.
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Returns the distance from the point to the line. If vector is null (line is not valid) returns distance to _point. |
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Returns the second endpoint of the line when treated as a line segment.
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Returns the closest point on this line to the given line l. For 3D lines it's rare that the 2 lines actually intersect, so this is not really named well. |
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Returns true if this line, treated as a segment, intersects the given line, also treated as a line. On success, also fills in the intersection point. |
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Same as Line<L,P,V>::intersect_segLine(const L& l, P& inter) except without the argument to return the intersection point.
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Returns true if this line, treated as a segment, intersects the given line, also treated as a segment. On success, also fills in the intersection point. |
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Is the line valid (i.e. has a vector with non-zero length).
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Returns the length of the line when treated as a line segment.
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Constructor that creates the line going through points
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Constructor that creates a line containing the point
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Default constructor. Creates a line with the results of the default constructors for the point and vector classes used. This most likely creates an invalid line (i.e. has a zero length vector) at the origin. |
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Returns the midpoint of the line when treated as a line segment.
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Are the two line's points and vectors exactly equal?
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Returns closest point on line to given point p. If vector is null (line is not valid) returns _point. |
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Finds the nearest point on this line segment to the given line. If this line is invalid, returns first endpoint. |
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Finds the nearest point on this line segment to the given point. If this line is invalid, returns first endpoint. |
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1.4.4