An Object class that is the base of the line-like Object's: Segment, Line and Ray.
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#include <line_imp.h>
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double | slope () const |
| Get the slope of this AbstractLine.
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const TQString | equationString () const |
| Get a string containing the equation of this line in the form "y
= a * x + b ".
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LineData | data () const |
| Get the LineData for this AbstractLine.
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bool | equals (const Object &rhs) const |
| Returns true if this Object is equal to rhs.
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Coordinate | attachPoint () const |
| Returns a reference point where to attach labels; when this returns an invalidCoord then the attachment is either not done at all, or done in a specific way (like for curves, or for points) The treatment of points could also take advantage of this attachment mechanism.
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virtual Curve * | copy () const =0 |
| Returns a copy of this Object.
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virtual bool | containsPoint (const Coordinate &p, const KigDocument &) const =0 |
| Return whether this Curve contains the given point.
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bool | inherits (const ObjectType *t) const |
| Returns true if this Object inherits the Object type represented by t.
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virtual Object * | transform (const Transformation &t) const =0 |
| Return this Object, transformed by the transformation t.
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bool | valid () const |
| Returns true if this is a valid Object.
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virtual const ObjectType * | type () const =0 |
| Returns the lowermost ObjectType that this object is an instantiation of.
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An Object class that is the base of the line-like Object's: Segment, Line and Ray.
◆ equals()
bool AbstractLine::equals |
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const Object & |
rhs | ) |
const |
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virtual |
Returns true if this Object is equal to rhs.
This function checks whether rhs is of the same Object type, and whether it contains the same data as this Object.
Implements Object.
◆ slope()
double AbstractLine::slope |
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const |
Get the slope of this AbstractLine.
. For a line through points a( xa, ya ) and b ( xb, yb ), this means the value ( yb - ya ) / ( xb - xa ).
◆ stype()
This file is part of the documentation for tdelibs .