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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
/** \file elbeem/intern/simulation_object.h
* \ingroup elbeem
*/
/******************************************************************************
*
* El'Beem - Free Surface Fluid Simulation with the Lattice Boltzmann Method
* Copyright 2003-2006 Nils Thuerey
*
* Basic interface for all simulation modules
*
*****************************************************************************/
#ifndef SIMULATION_OBJECT_H
#define SIMULATION_OBJECT_H
#define USE_GLUTILITIES
#include "ntl_geometryshader.h"
#include "parametrizer.h"
#ifdef WITH_CXX_GUARDEDALLOC
# include "MEM_guardedalloc.h"
#endif
class LbmSolverInterface;
class CellIdentifierInterface;
class ntlTree;
class ntlRenderGlobals;
class ntlRenderGlobals;
class ParticleTracer;
struct elbeemSimulationSettings;
//! type fluid geometry init
// warning : should match typeslbm.h values!
const int cFgiFlagstart = 16;
typedef enum {
fgiFluid = (1<<(cFgiFlagstart+0)),
fgiNoFluid = (1<<(cFgiFlagstart+1)),
fgiSlipNo = (1<<(cFgiFlagstart+2)),
fgiSlipFree = (1<<(cFgiFlagstart+3)),
fgiNoBnd = (1<<(cFgiFlagstart+4)),
fgiAcc = (1<<(cFgiFlagstart+5)),
fgiNoAcc = (1<<(cFgiFlagstart+6)),
fgiBndAll = (fgiSlipNo | fgiSlipFree)
} FgiFlagType;
/*! interface for different simluation models to visualize */
class SimulationObject :
public ntlGeometryShader {
public:
/*! Constructor */
SimulationObject();
/*! Destructor */
virtual ~SimulationObject();
/*! for init from API */
void copyElbeemSettings(elbeemSimulationSettings *settings);
/*! init tree for certain geometry init */
void initGeoTree();
/*! destroy tree etc. when geometry init done */
void freeGeoTree();
/*! get fluid init type at certain position */
int geoInitGetPointType(ntlVec3Gfx org, int &OId);
/*! check for a certain flag type at position org */
bool geoInitCheckPointInside(ntlVec3Gfx org, int flags, int &OId);
// access functions
/*! get current (max) simulation time */
double getCurrentTime( void ) { return mTime; }
/*! set geometry generation start point */
virtual void setGeoStart(ntlVec3Gfx set) { mGeoStart = set; }
/*! set geometry generation end point */
virtual void setGeoEnd(ntlVec3Gfx set) { mGeoEnd = set; }
/*! set sim panic flag */
void setPanic(bool set) { mPanic = set; }
/*! get sim panic flag */
bool getPanic( void ) { return mPanic; }
/*! simluation interface: initialize simulation */
int initializeLbmSimulation(ntlRenderGlobals *glob);
/*! set current frame */
void setFrameNum(int num);
/*! Do geo etc. init */
virtual int postGeoConstrInit(ntlRenderGlobals *glob) { return initializeLbmSimulation(glob); };
virtual int initializeShader() { /* ... */ return true; };
/*! notify object that dump is in progress (e.g. for field dump) */
virtual void notifyShaderOfDump(int dumptype, int frameNr,char *frameNrStr,string outfilename);
/*! simluation interface: draw the simulation with OpenGL */
virtual void draw( void ) {};
virtual vector<ntlGeometryObject *>::iterator getObjectsBegin();
virtual vector<ntlGeometryObject *>::iterator getObjectsEnd();
/*! simluation interface: advance simulation another step (whatever delta time that might be) */
virtual void step( void );
/*! prepare visualization of simulation for e.g. raytracing */
virtual void prepareVisualization( void );
/*! GUI - display debug info */
virtual void drawDebugDisplay();
/*! GUI - display interactive info */
virtual void drawInteractiveDisplay();
/*! GUI - handle mouse movement for selection */
virtual void setMousePos(int x,int y, ntlVec3Gfx org, ntlVec3Gfx dir);
virtual void setMouseClick();
/*! get current start simulation time */
double getStartTime( void );
/*! get time for a single animation frame */
double getFrameTime( int frame );
/*! get time for a single time step in the simulation */
double getTimestep( void );
//! access solver
LbmSolverInterface *getSolver(){ return mpLbm; }
protected:
/*! current time in the simulation */
double mTime;
/*! for display - start and end vectors for geometry */
ntlVec3Gfx mGeoStart, mGeoEnd;
/*! geometry init id */
//? int mGeoInitId;
/*! tree object for geomerty initialization */
ntlTree *mpGiTree;
/*! object vector for geo init */
vector<ntlGeometryObject*> *mpGiObjects;
/*! remember globals */
ntlRenderGlobals *mpGlob;
/*! simulation panic on/off */
bool mPanic;
/*! debug info to display */
int mDebugType;
/*! pointer to the lbm solver */
LbmSolverInterface *mpLbm;
/*! parametrizer for lbm solver */
Parametrizer *mpParam;
/*! particle tracing object */
ParticleTracer *mpParts;
/*! show parts of the simulation toggles */
bool mShowSurface;
bool mShowParticles;
/*! debug display settings */
int mDebDispSetting;
/*! pointer to identifier of selected node */
CellIdentifierInterface *mSelectedCid;
/*! storage of API settings */
elbeemSimulationSettings *mpElbeemSettings;
public:
// debug display setting funtions
/*! set type of info to display */
inline void setDebugDisplay(int disp) { mDebugType = disp; }
inline int getDebugDisplay() { return mDebugType; }
/* miscelleanous access functions */
/*! init parametrizer for anim step length */
void initParametrizer(Parametrizer *set) { mpParam = set; }
/*! init parametrizer for anim step length */
Parametrizer *getParametrizer() { return mpParam; }
/*! check status (e.g. stop/abort) from calling program, returns !=0 if sth. happened... */
// parameters same as elbeem runsimCallback
int checkCallerStatus(int status, int frame);
/*! get bounding box of fluid for GUI */
virtual inline ntlVec3Gfx *getBBStart() { return &mGeoStart; }
virtual inline ntlVec3Gfx *getBBEnd() { return &mGeoEnd; }
private:
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("ELBEEM:SimulationObject")
#endif
};
#endif
|