/usr/include/miaviewit-1.0/viewit/trajects.hh is in libmiaviewit-dev 1.0.4-1+b1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 | /* -*- mia-c++ -*-
*
* This file is part of viewitgui - a library and program for the
* visualization of 3D data sets.
*
* Copyright (c) Leipzig, Madrid 1999-2013 Mirco Hellmann, Gert Wollny
*
* viewitgui is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* viewitgui 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with viewitgui; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __trajects_hh
#define __trajects_hh
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <mia.hh>
using namespace mia;
#include <memory>
#include <viewit/drawable.hh>
#include <viewit/pixel.hh>
#include <viewit/texture.hh>
/// a datatype to trace describe trajectories in the vector field
struct C3DTracepoint {
C3DFVector location; /*!< the locaton of the trajectory point */
C3DFVector tangent; /*!< the diretction of the field at this point */
float weight; /*!< the weighted norm of the field at this point */
};
typedef std::list<C3DTracepoint> C3DTrajectory;
struct stream_element_t {
TColor col;
C4DFVector tex;
C3DFVector loc;
};
#define NUM_ALPHA_STAGES 16
/// a class to draw Trajectories as lines (no longer used)
class TTrajectories:public TDrawable {
P3DTransformation field;
std::shared_ptr<GL2DHTexture> texture;
static float alpha_shape[NUM_ALPHA_STAGES];
typedef std::list<stream_element_t> TStreamline;
typedef std::list<TStreamline> TFlowfield;
typedef std::list<C3DTrajectory> CTrajectoryList;
TFlowfield flow;
public:
TTrajectories(const string& name, P3DTransformation _field, std::shared_ptr<GL2DHTexture> _texture);
TTrajectories(const string& name, const TVertexList& start_list,
P3DTransformation _field, std::shared_ptr<GL2DHTexture> _texture);
void add(const TVertexList& start_list);
void add(const TSpeedPixelQueue& start_list,size_t max_size, float min_distance);
void clear();
const string& get_type() const;
private:
void generate_trace_list(TVertexList *start);
float get_trajectory_from(const C3DFVector& Start,
float step, size_t sizelimit,
float normlimit,
C3DTrajectory& trace);
virtual void povray_output_object(FILE *f)const;
virtual void povray_output_description(FILE *f)const;
void do_gl_draw(const TCamera& c)const;
};
/// a class to find trajectories in vectorfields
class TFieldTracer {
struct TFieldTracerData *data;
public:
TFieldTracer(P3DTransformation field_, float min_norm_, float min_dist_);
~TFieldTracer();
shared_ptr<TVertexList> get_start_vertexes();
shared_ptr<TVertexList> get_start_vertexes(const TVertexList& suggest);
};
#endif
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