forked from Kitware/VTK
-
Notifications
You must be signed in to change notification settings - Fork 0
/
vtkHyperTreeGridToUnstructuredGrid.cxx
288 lines (248 loc) · 8.33 KB
/
vtkHyperTreeGridToUnstructuredGrid.cxx
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
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
/*=========================================================================
Program: Visualization Toolkit
Module: vtkHyperTreeGridToUnstructuredGrid.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkHyperTreeGridToUnstructuredGrid.h"
#include "vtkBitArray.h"
#include "vtkCellArray.h"
#include "vtkCellData.h"
#include "vtkDataSetAttributes.h"
#include "vtkHyperTreeGrid.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkPointData.h"
#include "vtkUnstructuredGrid.h"
vtkStandardNewMacro(vtkHyperTreeGridToUnstructuredGrid);
//-----------------------------------------------------------------------------
vtkHyperTreeGridToUnstructuredGrid::vtkHyperTreeGridToUnstructuredGrid()
{
this->Input = 0;
this->Output = 0;
this->InData = 0;
this->OutData = 0;
this->Points = 0;
this->Cells = 0;
this->Dimension = 0;
this->CellSize = 0;
this->Coefficients = 0;
}
//-----------------------------------------------------------------------------
vtkHyperTreeGridToUnstructuredGrid::~vtkHyperTreeGridToUnstructuredGrid()
{
delete [] this->Coefficients;
this->Coefficients = 0;
}
//----------------------------------------------------------------------------
void vtkHyperTreeGridToUnstructuredGrid::PrintSelf( ostream& os, vtkIndent indent )
{
this->Superclass::PrintSelf( os, indent );
if( this->Input )
{
os << indent << "Input:\n";
this->Input->PrintSelf( os, indent.GetNextIndent() );
}
else
{
os << indent << "Input: ( none )\n";
}
if( this->Output )
{
os << indent << "Output:\n";
this->Output->PrintSelf( os, indent.GetNextIndent() );
}
else
{
os << indent << "Output: ( none )\n";
}
os << indent << "Dimension : " << this->Dimension << endl;
os << indent << "CellSize : " << this->CellSize << endl;
if ( this->Coefficients )
{
os << indent << "Coefficients : " << endl;
for ( unsigned int i = 0; i < this->CellSize; ++ i )
{
os << indent;
for ( unsigned int j = 0; j < this->Dimension; ++ j )
{
os << " " << this->Coefficients[i * this->Dimension + j];
}
os << endl;
}
}
}
//-----------------------------------------------------------------------------
int vtkHyperTreeGridToUnstructuredGrid::FillInputPortInformation( int, vtkInformation *info )
{
info->Set( vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkHyperTreeGrid" );
return 1;
}
//----------------------------------------------------------------------------
int vtkHyperTreeGridToUnstructuredGrid::RequestData( vtkInformation*,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector )
{
// Get the info objects
vtkInformation *inInfo = inputVector[0]->GetInformationObject( 0 );
vtkInformation *outInfo = outputVector->GetInformationObject( 0 );
// Retrieve input and output
this->Input =
vtkHyperTreeGrid::SafeDownCast( inInfo->Get( vtkDataObject::DATA_OBJECT() ) );
this->Output =
vtkUnstructuredGrid::SafeDownCast( outInfo->Get( vtkDataObject::DATA_OBJECT() ) );
delete [] this->Coefficients;
this->Coefficients = 0;
// Set instance variables needed for this conversion
this->Dimension = this->Input->GetDimension();
switch ( this->Dimension )
{
case 1:
this->CellSize = 2;
this->Coefficients = new unsigned int[2];
this->Coefficients[0] = 0;
this->Coefficients[1] = 1;
break;
case 2 :
this->CellSize = 4;
this->Coefficients = new unsigned int[8];
for ( unsigned int i = 0; i < 4; ++ i )
{
div_t d = div( i, 2 );
this->Coefficients[2 * i] = d.rem;
this->Coefficients[2 * i + 1] = d.quot;
}
break;
case 3 :
this->CellSize = 8;
this->Coefficients = new unsigned int[24];
for ( unsigned int i = 0; i < 8; ++ i )
{
div_t d1 = div( i, 2 );
div_t d2 = div( d1.quot, 2 );
this->Coefficients[3 * i] = d1.rem;
this->Coefficients[3 * i + 1] = d2.quot;
this->Coefficients[3 * i + 2] = d2.rem;
}
break;
default:
vtkErrorMacro( "Incorrect tree dimension: "
<< this->Dimension
<< "." );
return 0;
}
// Initialize output cell data
this->InData =
static_cast<vtkDataSetAttributes*>( this->Input->GetPointData() );
this->OutData =
static_cast<vtkDataSetAttributes*>( this->Output->GetCellData() );
this->OutData->CopyAllocate( this->InData );
// Convert hyper tree grid to unstructured grid
this->ProcessTrees();
// Clean up
this->Input = 0;
this->Output = 0;
this->InData = 0;
this->OutData = 0;
this->UpdateProgress ( 1. );
return 1;
}
//-----------------------------------------------------------------------------
void vtkHyperTreeGridToUnstructuredGrid::ProcessTrees()
{
// TODO: MTime on generation of this table.
this->Input->GenerateSuperCursorTraversalTable();
// Primal corner points
this->Points = vtkPoints::New();
this->Cells = vtkCellArray::New();
// Iterate over all hyper trees
vtkIdType index;
vtkHyperTreeGrid::vtkHyperTreeIterator it;
it.Initialize( this->Input );
while ( it.GetNextTree( index ) )
{
// Storage for super cursors
vtkHyperTreeGrid::vtkHyperTreeGridSuperCursor superCursor;
// Initialize center cursor
this->Input->InitializeSuperCursor( &superCursor, index );
// Traverse and populate dual recursively
this->RecursiveProcessTree( &superCursor );
}
// Set output geometry and topology
this->Output->SetPoints( this->Points );
switch ( this->CellSize )
{
case 2:
this->Output->SetCells( VTK_LINE, this->Cells );
break;
case 4:
this->Output->SetCells( VTK_QUAD, this->Cells );
break;
case 8:
this->Output->SetCells( VTK_VOXEL, this->Cells );
break;
default:
break;
}
this->Points->UnRegister( this );
this->Points = 0;
this->Cells->UnRegister( this );
this->Cells = 0;
}
//----------------------------------------------------------------------------
void vtkHyperTreeGridToUnstructuredGrid::AddCell( vtkIdType inId,
double* origin,
double* size )
{
// Generate 2^d points
double pt[3];
memcpy( pt, origin, 3 * sizeof(double) );
// Storage for cell IDs
vtkIdType ids[8];
ids[0] = this->Points->InsertNextPoint( pt );
for ( unsigned int i = 1; i < this->CellSize; ++ i )
{
for ( unsigned int j = 0; j < this->Dimension; ++ j )
{
pt[j] = origin[j] + this->Coefficients[i * this->Dimension + j] * size[j];
}
ids[i] = this->Points->InsertNextPoint( pt );
}
vtkIdType outId = this->Cells->InsertNextCell( this->CellSize, ids );
this->OutData->CopyData( this->InData, inId, outId );
}
//----------------------------------------------------------------------------
void vtkHyperTreeGridToUnstructuredGrid::RecursiveProcessTree( void* sc )
{
// Get cursor at super cursor center
vtkHyperTreeGrid::vtkHyperTreeGridSuperCursor* superCursor =
static_cast<vtkHyperTreeGrid::vtkHyperTreeGridSuperCursor*>( sc );
vtkHyperTreeGrid::vtkHyperTreeSimpleCursor* cursor = superCursor->GetCursor( 0 );
if ( cursor->IsLeaf() )
{
// Cursor is a leaf, retrieve its global index
vtkIdType inId = cursor->GetGlobalNodeIndex();
// If leaf is masked, skip it
if ( ! this->Input->GetMaterialMask()->GetValue( inId ) )
{
// Create cell
this->AddCell( inId, superCursor->Origin, superCursor->Size );
}
}
else
{
// If cursor is not at leaf, recurse to all children
int numChildren = this->Input->GetNumberOfChildren();
for ( int child = 0; child < numChildren; ++ child )
{
vtkHyperTreeGrid::vtkHyperTreeGridSuperCursor newSuperCursor;
this->Input->InitializeSuperCursorChild( superCursor,&newSuperCursor, child );
this->RecursiveProcessTree( &newSuperCursor );
}
}
}