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1beb58d745
Added classes AIS_Animation, AIS_AnimationCamera, AIS_AnimationObjectLocatio. Draw Harness command vanimation has been modified to manage animation timeline. Command vfit has been extended with option -noupdate. Formatting of vviewparams command output has been improved. Functionality of commands vlocreset, vlocmove, vloctranslate, vlocrotate, vlocmirror, vlocscale has been merged into vlocation/vsetlocation. vlocation now can print the current local transformation of the object. v3d/ivtk test group does not call vfit anymore. Fixed misprint in test cases bugs/vis/bug24623_3 and bug25532.
93 lines
2.8 KiB
C++
93 lines
2.8 KiB
C++
// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _gp_QuaternionSLerp_HeaderFile
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#define _gp_QuaternionSLerp_HeaderFile
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#include <gp_Quaternion.hxx>
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//! Perform Spherical Linear Interpolation of the quaternions,
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//! return unit length quaternion.
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class gp_QuaternionSLerp
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{
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public:
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//! Compute interpolated quaternion between two quaternions.
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//! @param theStart first quaternion
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//! @param theEnd second quaternion
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//! @param theT normalized interpolation coefficient within 0..1 range,
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//! with 0 pointing to theStart and 1 to theEnd.
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static gp_Quaternion Interpolate (const gp_Quaternion& theQStart,
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const gp_Quaternion& theQEnd,
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Standard_Real theT)
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{
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gp_Quaternion aResult;
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gp_QuaternionSLerp aLerp (theQStart, theQEnd);
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aLerp.Interpolate (theT, aResult);
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return aResult;
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}
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public:
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//! Empty constructor,
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gp_QuaternionSLerp() {}
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//! Constructor with initialization.
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gp_QuaternionSLerp (const gp_Quaternion& theQStart, const gp_Quaternion& theQEnd)
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{
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Init (theQStart, theQEnd);
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}
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//! Initialize the tool with Start and End values.
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void Init (const gp_Quaternion& theQStart, const gp_Quaternion& theQEnd)
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{
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InitFromUnit (theQStart.Normalized(), theQEnd.Normalized());
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}
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//! Initialize the tool with Start and End unit quaternions.
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void InitFromUnit (const gp_Quaternion& theQStart, const gp_Quaternion& theQEnd)
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{
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myQStart = theQStart;
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myQEnd = theQEnd;
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Standard_Real cosOmega = myQStart.Dot (myQEnd);
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if (cosOmega < 0.0)
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{
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cosOmega = -cosOmega;
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myQEnd = -myQEnd;
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}
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if (cosOmega > 0.9999)
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{
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cosOmega = 0.9999;
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}
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myOmega = ACos (cosOmega);
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Standard_Real invSinOmega = (1.0 / Sin (myOmega));
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myQStart.Scale (invSinOmega);
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myQEnd.Scale (invSinOmega);
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}
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//! Set interpolated quaternion for theT position (from 0.0 to 1.0)
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void Interpolate (Standard_Real theT, gp_Quaternion& theResultQ) const
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{
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theResultQ = myQStart * Sin((1.0 - theT) * myOmega) + myQEnd * Sin (theT * myOmega);
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}
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private:
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gp_Quaternion myQStart;
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gp_Quaternion myQEnd;
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Standard_Real myOmega;
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};
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#endif //_gp_QuaternionSLerp_HeaderFile
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