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41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program 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 Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "stdmisc.h"
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#include "nel/misc/line.h"
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namespace NLMISC
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{
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void CLine::project(const CVector &inV,CVector &outV)
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{
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CVector seg = V1 - V0;
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float n = seg.sqrnorm();
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if (n == 0.f)
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{
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outV = V0;
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}
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else
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{
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float dp = (inV - V0) * seg;
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outV = V0 + (dp / n) * seg;
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}
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}
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} // NLMISC
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