source: trunk/source/persistency/gdml/src/G4STRead.cc@ 1350

Last change on this file since 1350 was 1347, checked in by garnier, 15 years ago

geant4 tag 9.4
File size: 9.5 KB
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1//
2// ********************************************************************
3// * License and Disclaimer *
4// * *
5// * The Geant4 software is copyright of the Copyright Holders of *
6// * the Geant4 Collaboration. It is provided under the terms and *
7// * conditions of the Geant4 Software License, included in the file *
8// * LICENSE and available at http://cern.ch/geant4/license . These *
9// * include a list of copyright holders. *
10// * *
11// * Neither the authors of this software system, nor their employing *
12// * institutes,nor the agencies providing financial support for this *
13// * work make any representation or warranty, express or implied, *
14// * regarding this software system or assume any liability for its *
15// * use. Please see the license in the file LICENSE and URL above *
16// * for the full disclaimer and the limitation of liability. *
17// * *
18// * This code implementation is the result of the scientific and *
19// * technical work of the GEANT4 collaboration. *
20// * By using, copying, modifying or distributing the software (or *
21// * any work based on the software) you agree to acknowledge its *
22// * use in resulting scientific publications, and indicate your *
23// * acceptance of all terms of the Geant4 Software license. *
24// ********************************************************************
25//
26// $Id: G4STRead.cc,v 1.6 2010/11/02 10:39:27 gcosmo Exp $
27// GEANT4 tag $Name: gdml-V09-03-09 $
28//
29// class G4STRead Implementation
30//
31// History:
32// - Created. Zoltan Torzsok, November 2007
33// -------------------------------------------------------------------------
34
35#include <fstream>
36
37#include "G4STRead.hh"
38
39#include "G4Material.hh"
40#include "G4Box.hh"
41#include "G4QuadrangularFacet.hh"
42#include "G4TriangularFacet.hh"
43#include "G4TessellatedSolid.hh"
44#include "G4LogicalVolume.hh"
45#include "G4PVPlacement.hh"
46
47void G4STRead::TessellatedRead(const std::string& line)
48{
49 if (tessellatedList.size()>0)
50 {
51 tessellatedList.back()->SetSolidClosed(true);
52 // Finish the previous solid at first!
53 }
54
55 std::istringstream stream(line.substr(2));
56
57 G4String name;
58 stream >> name;
59
60 G4TessellatedSolid* tessellated = new G4TessellatedSolid(name);
61 volumeMap[tessellated] =
62 new G4LogicalVolume(tessellated, solid_material, name+"_LV" , 0, 0, 0);
63 tessellatedList.push_back(tessellated);
64
65 G4cout << "G4STRead: Reading solid: " << name << G4endl;
66}
67
68void G4STRead::FacetRead(const std::string& line)
69{
70 if (tessellatedList.size()==0)
71 {
72 G4Exception("G4STRead::FacetRead()", "ReadError", FatalException,
73 "A solid must be defined before defining a facet!");
74 }
75
76 if (line[2]=='3') // Triangular facet
77 {
78 G4double x1,y1,z1;
79 G4double x2,y2,z2;
80 G4double x3,y3,z3;
81
82 std::istringstream stream(line.substr(4));
83 stream >> x1 >> y1 >> z1 >> x2 >> y2 >> z2 >> x3 >> y3 >> z3;
84 tessellatedList.back()->
85 AddFacet(new G4TriangularFacet(G4ThreeVector(x1,y1,z1),
86 G4ThreeVector(x2,y2,z2),
87 G4ThreeVector(x3,y3,z3), ABSOLUTE));
88 }
89 else if (line[2]=='4') // Quadrangular facet
90 {
91 G4double x1,y1,z1;
92 G4double x2,y2,z2;
93 G4double x3,y3,z3;
94 G4double x4,y4,z4;
95
96 std::istringstream stream(line.substr(4));
97 stream >> x1 >> y1 >> z1 >> x2 >> y2 >> z2
98 >> x3 >> y3 >> z3 >> x4 >> y4 >> z4;
99 tessellatedList.back()->
100 AddFacet(new G4QuadrangularFacet(G4ThreeVector(x1,y1,z1),
101 G4ThreeVector(x2,y2,z2),
102 G4ThreeVector(x3,y3,z3),
103 G4ThreeVector(x4,y4,z4), ABSOLUTE));
104 }
105 else
106 {
107 G4Exception("G4STRead::FacetRead()", "ReadError", FatalException,
108 "Number of vertices per facet should be either 3 or 4!");
109 }
110}
111
112void G4STRead::PhysvolRead(const std::string& line)
113{
114 G4int level;
115 G4String name;
116 G4double r1,r2,r3;
117 G4double r4,r5,r6;
118 G4double r7,r8,r9;
119 G4double pX,pY,pZ;
120 G4double n1,n2,n3,n4,n5;
121
122 std::istringstream stream(line.substr(2));
123 stream >> level >> name >> r1 >> r2 >> r3 >> n1 >> r4 >> r5 >> r6
124 >> n2 >> r7 >> r8 >> r9 >> n3 >> pX >> pY >> pZ >> n4 >> n5;
125 std::string::size_type idx = name.rfind("_");
126 if (idx!=std::string::npos)
127 {
128 name.resize(idx);
129 }
130 else
131 {
132 G4Exception("G4STRead::PhysvolRead()", "ReadError",
133 FatalException, "Invalid input stream!");
134 return;
135 }
136
137 G4cout << "G4STRead: Placing tessellated solid: " << name << G4endl;
138
139 G4TessellatedSolid* tessellated = 0;
140
141 for (size_t i=0; i<tessellatedList.size(); i++)
142 { // Find the volume for this physvol!
143 if (tessellatedList[i]->GetName() == G4String(name))
144 {
145 tessellated = tessellatedList[i];
146 break;
147 }
148 }
149
150 if (tessellated == 0)
151 {
152 G4String error_msg = "Referenced solid '" + name + "' not found!";
153 G4Exception("G4STRead::PhysvolRead()", "ReadError",
154 FatalException, error_msg);
155 }
156 if (volumeMap.find(tessellated) == volumeMap.end())
157 {
158 G4String error_msg = "Referenced solid '" + name
159 + "' is not associated with a logical volume!";
160 G4Exception("G4STRead::PhysvolRead()", "InvalidSetup",
161 FatalException, error_msg);
162 }
163 const G4RotationMatrix rot(G4ThreeVector(r1,r2,r3),
164 G4ThreeVector(r4,r5,r6),
165 G4ThreeVector(r7,r8,r9));
166 const G4ThreeVector pos(pX,pY,pZ);
167
168 new G4PVPlacement(G4Transform3D(rot.inverse(),pos),
169 volumeMap[tessellated], name+"_PV", world_volume, 0, 0);
170 // Note: INVERSE of rotation is needed!!!
171
172 G4double minx,miny,minz;
173 G4double maxx,maxy,maxz;
174 const G4VoxelLimits limits;
175
176 tessellated->CalculateExtent(kXAxis,limits,
177 G4AffineTransform(rot,pos),minx,maxx);
178 tessellated->CalculateExtent(kYAxis,limits,
179 G4AffineTransform(rot,pos),miny,maxy);
180 tessellated->CalculateExtent(kZAxis,limits,
181 G4AffineTransform(rot,pos),minz,maxz);
182
183 if (world_extent.x() < std::fabs(minx))
184 { world_extent.setX(std::fabs(minx)); }
185 if (world_extent.y() < std::fabs(miny))
186 { world_extent.setY(std::fabs(miny)); }
187 if (world_extent.z() < std::fabs(minz))
188 { world_extent.setZ(std::fabs(minz)); }
189 if (world_extent.x() < std::fabs(maxx))
190 { world_extent.setX(std::fabs(maxx)); }
191 if (world_extent.y() < std::fabs(maxy))
192 { world_extent.setY(std::fabs(maxy)); }
193 if (world_extent.z() < std::fabs(maxz))
194 { world_extent.setZ(std::fabs(maxz)); }
195}
196
197void G4STRead::ReadGeom(const G4String& name)
198{
199 G4cout << "G4STRead: Reading '" << name << "'..." << G4endl;
200
201 std::ifstream GeomFile(name);
202
203 if (!GeomFile)
204 {
205 G4String error_msg = "Cannot open file: " + name;
206 G4Exception("G4STRead::ReadGeom()", "ReadError",
207 FatalException, error_msg);
208 }
209
210 tessellatedList.clear();
211 volumeMap.clear();
212 std::string line;
213
214 while (getline(GeomFile,line))
215 {
216 if (line[0] == 'f') { TessellatedRead(line); } else
217 if (line[0] == 'p') { FacetRead(line); }
218 }
219
220 if (tessellatedList.size()>0) // Finish the last solid!
221 {
222 tessellatedList.back()->SetSolidClosed(true);
223 }
224
225 G4cout << "G4STRead: Reading '" << name << "' done." << G4endl;
226}
227
228void G4STRead::ReadTree(const G4String& name)
229{
230 G4cout << "G4STRead: Reading '" << name << "'..." << G4endl;
231
232 std::ifstream TreeFile(name);
233
234 if (!TreeFile)
235 {
236 G4String error_msg = "Cannot open file: " + name;
237 G4Exception("G4STRead::ReadTree()", "ReadError",
238 FatalException, error_msg);
239 }
240
241 std::string line;
242
243 while (getline(TreeFile,line))
244 {
245 if (line[0] == 'g') { PhysvolRead(line); }
246 }
247
248 G4cout << "G4STRead: Reading '" << name << "' done." << G4endl;
249}
250
251G4LogicalVolume*
252G4STRead::Read(const G4String& name, G4Material* mediumMaterial,
253 G4Material* solidMaterial)
254{
255 if (mediumMaterial == 0)
256 {
257 G4Exception("G4STRead::Read()", "InvalidSetup", FatalException,
258 "Pointer to medium material is not valid!");
259 }
260 if (solidMaterial == 0)
261 {
262 G4Exception("G4STRead::Read()", "InvalidSetup", FatalException,
263 "Pointer to solid material is not valid!");
264 }
265
266 solid_material = solidMaterial;
267
268 world_box = new G4Box("TessellatedWorldBox",kInfinity,kInfinity,kInfinity);
269 // We don't know the extent of the world yet!
270 world_volume = new G4LogicalVolume(world_box, mediumMaterial,
271 "TessellatedWorldLV", 0, 0, 0);
272 world_extent = G4ThreeVector(0,0,0);
273
274 ReadGeom(name+".geom");
275 ReadTree(name+".tree");
276
277 // Now setting the world extent ...
278 //
279 if (world_box->GetXHalfLength() > world_extent.x())
280 { world_box->SetXHalfLength(world_extent.x()); }
281 if (world_box->GetYHalfLength() > world_extent.y())
282 { world_box->SetYHalfLength(world_extent.y()); }
283 if (world_box->GetZHalfLength() > world_extent.z())
284 { world_box->SetZHalfLength(world_extent.z()); }
285
286 return world_volume;
287}
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