131 lines
3.5 KiB
C
131 lines
3.5 KiB
C
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/*
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This file is part of SECONDO.
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Copyright (C) 2013, University in Hagen, Department of Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef TILEALGEBRA_HALFSEGMENT_H
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#define TILEALGEBRA_HALFSEGMENT_H
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/*
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SECONDO includes
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*/
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#include "Algebras/Spatial/HalfSegment.h"
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#include "Algebras/Spatial/SpatialAlgebra.h"
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/*
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declaration of namespace TileAlgebra
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*/
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namespace TileAlgebra
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{
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/*
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Method CheckPoints checks the consistency of given left point and right point.
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author: Dirk Zacher
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parameters: rLeftPoint - reference to left point
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rRightPoint - reference to right point
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return value: true, if left point and right point were exchanged,
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otherwise false
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exceptions: -
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*/
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bool CheckPoints(Point& rLeftPoint,
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Point& rRightPoint);
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/*
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Method CheckHalfSegment checks the consistency of the given HalfSegment.
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author: Dirk Zacher
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parameters: rHalfSegment - reference to a HalfSegment
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return value: -
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exceptions: -
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*/
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void CheckHalfSegment(HalfSegment& rHalfSegment);
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/*
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Method IsHorizontalHalfSegment checks if given HalfSegment is a horizontal line.
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author: Dirk Zacher
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parameters: rHalfSegment - reference to a HalfSegment
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return value: true, if rHalfSegment is a horizontal line, otherwise false
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exceptions: -
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*/
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bool IsHorizontalHalfSegment(const HalfSegment& rHalfSegment);
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/*
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Method IsVerticalHalfSegment checks if given HalfSegment is a vertical line.
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author: Dirk Zacher
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parameters: rHalfSegment - reference to a HalfSegment
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return value: true, if rHalfSegment is a vertical line, otherwise false
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exceptions: -
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*/
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bool IsVerticalHalfSegment(const HalfSegment& rHalfSegment);
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/*
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Method HalfSegmentIntersectsRectangle checks if given HalfSegment
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intersects given Rectangle<2>.
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author: Dirk Zacher
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parameters: rHalfSegment - reference to a HalfSegment
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rRectangle - reference to a Rectangle<2>
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return value: true, if rHalfSegment intersects rRectangle, otherwise false
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exceptions: -
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*/
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bool HalfSegmentIntersectsRectangle(const HalfSegment& rHalfSegment,
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const Rectangle<2>& rRectangle);
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/*
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Method GetPointsInRectangle returns a left point and a right point
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of given HalfSegment inside the given Rectangle<2>.
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author: Dirk Zacher
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parameters: rHalfSegment - reference to a HalfSegment
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rRectangle - reference to a Rectangle<2>
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rLeftPoint - reference to the left point inside rRectangle
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rRightPoint - reference to the right point inside rRectangle
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return value: true, if left point and right point were successfully calculated,
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otherwise false
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exceptions: -
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*/
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bool GetPointsInRectangle(const HalfSegment& rHalfSegment,
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const Rectangle<2>& rRectangle,
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Point& rLeftPoint,
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Point& rRightPoint);
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}
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#endif // TILEALGEBRA_HALFSEGMENT_H
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