///////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2002-2016, Open Design Alliance (the "Alliance").
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// All rights reserved.
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//
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// This software and its documentation and related materials are owned by
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// the Alliance. The software may only be incorporated into application
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// programs owned by members of the Alliance, subject to a signed
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// Membership Agreement and Supplemental Software License Agreement with the
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// Alliance. The structure and organization of this software are the valuable
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// trade secrets of the Alliance and its suppliers. The software is also
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// protected by copyright law and international treaty provisions. Application
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// programs incorporating this software must include the following statement
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// with their copyright notices:
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//
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// This application incorporates Teigha(R) software pursuant to a license
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// agreement with Open Design Alliance.
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// Teigha(R) Copyright (C) 2002-2016 by Open Design Alliance.
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// All rights reserved.
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//
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// By use of this software, its documentation or related materials, you
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// acknowledge and accept the above terms.
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///////////////////////////////////////////////////////////////////////////////
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#ifndef OD_GE_OFFSET_CURVE_2D_H
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#define OD_GE_OFFSET_CURVE_2D_H /*!DOM*/
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#include "Ge/GeCurve2d.h"
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#include "TD_PackPush.h"
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/** \details
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This class represents 2D curves that are exact offsets of other curves.
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\remarks
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Every GeOffsetCurve2d contains a pointer to the curve from which it is offest.
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Modifying the base curve modifies the offset curve. Modifying the offset curve
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does not modify the base curve. setInterval() for an offset curve result create a curve that
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is an offset of the specified interval in the base curve.
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This curve may be self-intersecting, even if the base curve is not.
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Positive offset distances at any point on the base curve are defined as 90° counterclockwise
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from the tangent of the base curve at that point.
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An offset curve with a 0.0 offset distance is exact replica of the base curve. An offseet curve with
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a non-zero 0.0 offset distance has a continuity of one less than that of the base curve.
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To insure that the offset curve is a valid curve, the base curve must have a continuity
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of at least 1.
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Library: TD_Ge
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<group OdGe_Classes>
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\sa
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<link ge_OdGeOffsetCurve3d.html, Working with Offset Curves>
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*/
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class GE_TOOLKIT_EXPORT OdGeOffsetCurve2d : public OdGeCurve2d
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{
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public:
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/** \param baseCurve [in] Any 2D curve.
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\param offsetDistance [in] Offset distance.
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\param source [in] Object to be cloned.
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*/
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OdGeOffsetCurve2d(
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const OdGeCurve2d& baseCurve,
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double offsetDistance);
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OdGeOffsetCurve2d(
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const OdGeOffsetCurve2d& source);
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/** \details
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Returns the base curve.
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*/
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const OdGeCurve2d* curve() const;
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/** \details
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Returns the offset distance of this curve.
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*/
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double offsetDistance() const;
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/** \details
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Returns true if and only if this curve has the same parameter direction as the base curve.
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\note
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Currently not implemented.
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*/
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bool paramDirection() const;
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/** \details
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Returns the concatenation of the transformation matrices applied to this curve with transformBy().
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\remarks
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If no transformation matrices have been applied to this curve, returns the identity matrix.
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\note
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Currently not implemented.
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*/
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OdGeMatrix2d transformation() const;
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/** \details
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Sets the base curve for this curve.
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\param baseCurve [in] Any 2D curve.
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*/
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OdGeOffsetCurve2d& setCurve(
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const OdGeCurve2d& baseCurve);
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/** \details
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Sets the offset distance for this curve.
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\param offsetDistance [in] Offset distance.
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*/
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OdGeOffsetCurve2d& setOffsetDistance(
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double distance);
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OdGeOffsetCurve2d& operator = (
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const OdGeOffsetCurve2d& offsetCurve);
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//////////////////////////////////////////////////////////////////////////
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// TD Special overrides :
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};
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#include "TD_PackPop.h"
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#endif // OD_GE_OFFSET_CURVE_2D_H
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