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/****************************************************************************
* Copyright (C) from 2009 to Present EPAM Systems.
*
* This file is part of Indigo toolkit.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
***************************************************************************/
#include "math/algebra.h"
using namespace indigo;
Plane3f::Plane3f()
{
_norm.set(0, 0, 1);
_d = 0;
}
void Plane3f::copy(const Plane3f& other)
{
_norm.copy(other._norm);
_d = other._d;
}
float Plane3f::distFromPoint(const Vec3f& point) const
{
return (float)fabs(Vec3f::dot(point, _norm) + _d);
}
void Plane3f::projection(const Vec3f& point, Vec3f& proj_out) const
{
Vec3f org, diff, proj;
org.scaled(_norm, _d);
diff.diff(point, org);
proj.scaled(_norm, Vec3f::dot(_norm, diff));
diff.sub(proj);
proj_out.sum(org, diff);
}
bool Plane3f::byPointAndLine(const Vec3f& point, const Line3f& line)
{
Vec3f diff, cross;
diff.diff(point, line.org);
cross.cross(diff, line.dir);
if (!cross.normalize())
return false;
_norm.copy(cross);
_d = -Vec3f::dot(_norm, line.org);
return true;
}
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