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/**
* \file
* \brief Satellite
*//*
* Authors:
* 2015 Jabier Arraiza Cenoz<jabier.arraiza@marker.es>
* Copyright 2015 authors
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (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.mozilla.org/MPL/
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*/
#include <2geom/satellite.h>
#include <2geom/curve.h>
#include <2geom/nearest-point.h>
#include <2geom/sbasis-geometric.h>
namespace Geom {
Satellite::Satellite(){};
Satellite::Satellite(SatelliteType satellitetype, bool isTime, bool active, bool hasMirror, bool hidden, double size, double time)
: _satellitetype(satellitetype), _isTime(isTime), _active(active), _hasMirror(hasMirror), _hidden(hidden), _size(size), _time(time){};
Satellite::~Satellite() {};
void
Satellite::setPosition(Geom::Point p, Geom::D2<Geom::SBasis> d2_in)
{
if(!d2_in.isFinite() || d2_in.isZero()){
_time = 0;
_size = 0;
return;
}
double lenghtPart = Geom::length(d2_in, Geom::EPSILON);
_time = Geom::nearest_point(p, d2_in);
if (d2_in[0].degreesOfFreedom() != 2) {
Geom::Piecewise<Geom::D2<Geom::SBasis> > u;
u.push_cut(0);
u.push(d2_in, 1);
u = Geom::portion(u, 0.0, _time);
_size = Geom::length(u, 0.001);
} else {
_size = (_time * lenghtPart);
}
if(_time > 0.998){
_time = 1;
}
}
double
Satellite::getOpositeTime(Geom::D2<Geom::SBasis> d2_in)
{
if(!d2_in.isFinite() || d2_in.isZero()){
return 1;
}
double t = 0;
double lenghtPart = Geom::length(d2_in, Geom::EPSILON);
if(_size == 0){
return 1;
}
double size = lenghtPart - _size;
if (d2_in[0].degreesOfFreedom() != 2) {
Geom::Piecewise<Geom::D2<Geom::SBasis> > u;
u.push_cut(0);
u.push(d2_in, 1);
std::vector<double> t_roots = roots(arcLengthSb(u) - size);
if (t_roots.size() > 0) {
t = t_roots[0];
}
} else {
if (size < lenghtPart && lenghtPart != 0) {
t = size / lenghtPart;
}
}
if(_time > 0.999){
_time = 1;
}
return t;
}
void
Satellite::updateSizeTime(Geom::D2<Geom::SBasis> d2_in)
{
if(!d2_in.isFinite() || d2_in.isZero()){
_time = 0;
_size = 0;
return;
}
double lenghtPart = Geom::length(d2_in, Geom::EPSILON);
if(!_isTime){
if (_size != 0) {
if(lenghtPart <= _size){
_time = 1;
_size = lenghtPart;
} else if (d2_in[0].degreesOfFreedom() != 2) {
Piecewise<D2<SBasis> > u;
u.push_cut(0);
u.push(d2_in, 1);
std::vector<double> t_roots = roots(arcLengthSb(u) - _size);
if (t_roots.size() > 0) {
_time = t_roots[0];
}
} else {
if (_size < lenghtPart && lenghtPart != 0) {
_time = _size / lenghtPart;
}
}
} else {
_time = 0;
}
} else {
if (_time != 0) {
if (d2_in[0].degreesOfFreedom() != 2) {
Piecewise<D2<SBasis> > u;
u.push_cut(0);
u.push(d2_in, 1);
u = portion(u, 0, _time);
_size = length(u, 0.001);
} else {
lenghtPart = length(d2_in, EPSILON);
_size = _time * lenghtPart;
}
} else {
_size = 0;
}
}
if(_time > 0.999){
_time = 1;
}
}
Geom::Point
Satellite::getPosition(Geom::D2<Geom::SBasis> d2_in){
if(!d2_in.isFinite() || d2_in.isZero()){
return Geom::Point(9999999999.0,9999999999.0);
}
updateSizeTime(d2_in);
return d2_in.valueAt(_time);
}
} // end namespace Geom
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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