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0032570: Visualization, AIS_AnimationObject - define rotation around axis

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When using AIS_AnimationObject, linear interpolation is performed from one gp_Trsf transformation to another.
But when an object rotates around a specific axis, the object moves not along a linear trajectory,
but along a circle. Therefore, a separate class AIS_AnimationAxisRotation was created that
allows to animate rotation around a specific axis.

Test case tests/v3d/bugs/bug32570 was added.
This commit is contained in:
mzernova
2021-12-27 23:57:13 +00:00
committed by Vadim Glukhikh
parent d22b135217
commit 53eae1a935
9 changed files with 346 additions and 82 deletions
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51
src/AIS/AIS_AnimationAxisRotation.cxx Normal file
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// Copyright (c) 2023 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#include <AIS_AnimationAxisRotation.hxx>
IMPLEMENT_STANDARD_RTTIEXT(AIS_AnimationAxisRotation, AIS_BaseAnimationObject)
//=============================================================================
//function : Constructor
//purpose :
//=============================================================================
AIS_AnimationAxisRotation::AIS_AnimationAxisRotation (const TCollection_AsciiString& theAnimationName,
const Handle(AIS_InteractiveContext)& theContext,
const Handle(AIS_InteractiveObject)& theObject,
const gp_Ax1& theAxis,
const Standard_Real theAngleStart,
const Standard_Real theAngleEnd)
: AIS_BaseAnimationObject (theAnimationName, theContext, theObject),
myRotAxis (theAxis),
myAngleStart (theAngleStart),
myAngleEnd (theAngleEnd)
{
//
}
//=============================================================================
//function : update
//purpose :
//=============================================================================
void AIS_AnimationAxisRotation::update (const AIS_AnimationProgress& theProgress)
{
if (myObject.IsNull())
{
return;
}
gp_Trsf aTrsf;
Standard_Real aCurrentAngle = (1.0 - theProgress.LocalNormalized) * myAngleStart + theProgress.LocalNormalized * myAngleEnd;
aTrsf.SetRotation (myRotAxis, aCurrentAngle);
updateTrsf (aTrsf);
}