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libmultiscale/src/geometry/cylinder.cc
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cylinder.cc
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/**
* @file cylinder.cc
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @author Till Junge <till.junge@epfl.ch>
*
* @date Mon Jul 28 17:44:19 2014
*
* @brief Cylinder geometry
*
* @section LICENSE
*
* Copyright (©) 2010-2011 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* LibMultiScale is free software: you can redistribute it and/or modify it
* under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* LibMultiScale is distributed in the hope that it will be useful, but
* WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with LibMultiScale. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "cylinder.hh"
#include "cube.hh"
#include "lm_common.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_LIBMULTISCALE__
/* -------------------------------------------------------------------------- */
Cylinder::Cylinder(UInt d, LMID id) : LMObject(id), Geometry(d, CYLINDER) {
for (UInt i = 0; i < 3; ++i) {
dir[i] = 0.0;
}
radius_range = 0.0;
height_range = 0.0;
}
/* -------------------------------------------------------------------------- */
Cube Cylinder::getBoundingBox() {
Cube bbox = Geometry::getBoundingBox();
Real cx = this->getCenter(0);
Real cy = this->getCenter(1);
Real cz = this->getCenter(2);
bbox.setDimensions(cx - this->rMax(), cx + this->rMax(), cy - this->rMax(),
cy + this->rMax(), cz - this->rMax(), cz + this->rMax());
return bbox;
}
/* -------------------------------------------------------------------------- */
void Cylinder::init() {
radius_square = radius_range * radius_range;
Real norm = 0;
for (UInt i = 0; i < dim; ++i) {
norm += this->dir[i] * this->dir[i];
}
norm = std::sqrt(norm);
for (UInt i = 0; i < dim; ++i) {
this->dir[i] /= norm;
this->center[i] = this->base[i] + .5 * height_range * dir[i];
}
}
/* -------------------------------------------------------------------------- */
Real Cylinder::rMin() { return radius_range; }
/* -------------------------------------------------------------------------- */
Real Cylinder::rMax() { return radius_range; }
/* -------------------------------------------------------------------------- */
/* LMDESC CYLINDER
This geometry is the generalized description of a cylinder.
*/
/* LMEXAMPLE
GEOMETRY cylinder CYLINDER CENTER 0 0 0 RADIUS 100 HEIGHT LZ/2 DIR 0 0 1\\
*/
void Cylinder::declareParams() {
/* LMKEYWORD RADIUS
Set the radius of base circle. \\
*/
this->parseVectorKeyword("RADIUS", 1, radius_range);
/* LMKEYWORD DIR
Set the extruding direction based on the circle
*/
this->parseVectorKeyword("DIR", 3, dir);
/* LMKEYWORD HEIGHT
Set the amount of extruding of the circle
*/
this->parseVectorKeyword("HEIGHT", 1, height_range);
/* LMKEYWORD BASE
Set the center of the base of the geometry
*/
this->parseVectorKeyword("BASE", dim, base);
}
/* -------------------------------------------------------------------------- */
__END_LIBMULTISCALE__
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