8766335708
Better for reallllly wide screens and multiscreen setups, apparently. Also, let's merge with v-r while we're at it, since llcamera.h requires a large-ish recompile Nothing functional though. And some license updates to some identical files in llmath.
102 lines
3.4 KiB
C++
102 lines
3.4 KiB
C++
/**
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* @file llbbox.h
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* @brief General purpose bounding box class
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*
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* $LicenseInfo:firstyear=2001&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LL_BBOX_H
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#define LL_BBOX_H
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#include "v3math.h"
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#include "llquaternion.h"
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// Note: "local space" for an LLBBox is defined relative to agent space in terms of
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// a translation followed by a rotation. There is no scale term since the LLBBox's min and
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// max are not necessarily symetrical and define their own extents.
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class LLBBox
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{
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public:
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LLBBox() {mEmpty = TRUE;}
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LLBBox( const LLVector3& pos_agent,
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const LLQuaternion& rot,
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const LLVector3& min_local,
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const LLVector3& max_local )
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:
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mMinLocal( min_local ), mMaxLocal( max_local ), mPosAgent(pos_agent), mRotation( rot), mEmpty( TRUE )
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{}
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// Default copy constructor is OK.
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const LLVector3& getPositionAgent() const { return mPosAgent; }
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const LLQuaternion& getRotation() const { return mRotation; }
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LLVector3 getMinAgent() const;
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const LLVector3& getMinLocal() const { return mMinLocal; }
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void setMinLocal( const LLVector3& min ) { mMinLocal = min; }
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LLVector3 getMaxAgent() const;
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const LLVector3& getMaxLocal() const { return mMaxLocal; }
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void setMaxLocal( const LLVector3& max ) { mMaxLocal = max; }
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LLVector3 getCenterLocal() const { return (mMaxLocal - mMinLocal) * 0.5f + mMinLocal; }
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LLVector3 getCenterAgent() const { return localToAgent( getCenterLocal() ); }
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LLVector3 getExtentLocal() const { return mMaxLocal - mMinLocal; }
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BOOL containsPointLocal(const LLVector3& p) const;
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BOOL containsPointAgent(const LLVector3& p) const;
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void addPointAgent(LLVector3 p);
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void addBBoxAgent(const LLBBox& b);
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void addPointLocal(const LLVector3& p);
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void addBBoxLocal(const LLBBox& b) { addPointLocal( b.mMinLocal ); addPointLocal( b.mMaxLocal ); }
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void expand( F32 delta );
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LLVector3 localToAgent( const LLVector3& v ) const;
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LLVector3 agentToLocal( const LLVector3& v ) const;
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// Changes rotation but not position
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LLVector3 localToAgentBasis(const LLVector3& v) const;
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LLVector3 agentToLocalBasis(const LLVector3& v) const;
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// Get the smallest possible axis aligned bbox that contains this bbox
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LLBBox getAxisAligned() const;
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// friend LLBBox operator*(const LLBBox& a, const LLMatrix4& b);
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private:
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LLVector3 mMinLocal;
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LLVector3 mMaxLocal;
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LLVector3 mPosAgent; // Position relative to Agent's Region
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LLQuaternion mRotation;
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BOOL mEmpty; // Nothing has been added to this bbox yet
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};
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//LLBBox operator*(const LLBBox &a, const LLMatrix4 &b);
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#endif // LL_BBOX_H
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