liboce-foundation-dev 0.17.1-1 / usr / include / oce / Bnd_B2x.gxx

This file is indexed.

/usr/include/oce/Bnd_B2x.gxx is in liboce-foundation-dev 0.17.1-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below. 

  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
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
// Created on: 2005-09-08
// Created by: Alexander GRIGORIEV
// Copyright (c) 2005-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

inline Standard_Boolean _compareDist  (const RealType aHSize[2],
                                       const RealType aDist[2])
{
  return (Abs(aDist[0]) > aHSize[0] || Abs(aDist[1]) > aHSize[1]);
}

inline Standard_Boolean _compareDistD (const gp_XY& aHSize, const gp_XY& aDist)
{
  return (Abs(aDist.X()) > aHSize.X() || Abs(aDist.Y()) > aHSize.Y());
}

//=======================================================================
//function : Add
//purpose  : Update the box by a point
//=======================================================================

void Bnd_B2x::Add (const gp_XY& thePnt) {
  if (IsVoid()) {
    myCenter[0] = RealType(thePnt.X());
    myCenter[1] = RealType(thePnt.Y());
    myHSize [0] = 0.;
    myHSize [1] = 0.;
  } else {
    const RealType aDiff[2] = {
      RealType(thePnt.X()) - myCenter[0],
      RealType(thePnt.Y()) - myCenter[1]
    };
    if (aDiff[0] > myHSize[0]) {
      const RealType aShift = (aDiff[0] - myHSize[0]) / 2;
      myCenter[0] += aShift;
      myHSize [0] += aShift;
    } else if (aDiff[0] < -myHSize[0]) {
      const RealType aShift = (aDiff[0] + myHSize[0]) / 2;
      myCenter[0] += aShift;
      myHSize [0] -= aShift;
    }
    if (aDiff[1] > myHSize[1]) {
      const RealType aShift = (aDiff[1] - myHSize[1]) / 2;
      myCenter[1] += aShift;
      myHSize [1] += aShift;
    } else if (aDiff[1] < -myHSize[1]) {
      const RealType aShift = (aDiff[1] + myHSize[1]) / 2;
      myCenter[1] += aShift;
      myHSize [1] -= aShift;
    }
  }
}

//=======================================================================
//function : Limit
//purpose  : limit the current box with the internals of theBox
//=======================================================================

Standard_Boolean Bnd_B2x::Limit (const Bnd_B2x& theBox)
{
  Standard_Boolean aResult (Standard_False);
  const RealType diffC[2] = {
    theBox.myCenter[0] - myCenter[0],
    theBox.myCenter[1] - myCenter[1]
  };
  const RealType sumH[2] = {
    theBox.myHSize[0] + myHSize[0],
    theBox.myHSize[1] + myHSize[1]
  };
  // check the condition IsOut
  if (_compareDist (sumH, diffC) == Standard_False) {
    const RealType diffH[2] = {
      theBox.myHSize[0] - myHSize[0],
      theBox.myHSize[1] - myHSize[1]
    };
    if (diffC[0] - diffH[0] > 0.) {
      const RealType aShift = (diffC[0] - diffH[0]) / 2; // positive
      myCenter[0] += aShift;
      myHSize [0] -= aShift;
    } else if (diffC[0] + diffH[0] < 0.) {
      const RealType aShift = (diffC[0] + diffH[0]) / 2; // negative
      myCenter[0] += aShift;
      myHSize [0] += aShift;
    }
    if (diffC[1] - diffH[1] > 0.) {
      const RealType aShift = (diffC[1] - diffH[1]) / 2; // positive
      myCenter[1] += aShift;
      myHSize [1] -= aShift;
    } else if (diffC[1] + diffH[1] < 0.) {
      const RealType aShift = (diffC[1] + diffH[1]) / 2; // negative
      myCenter[1] += aShift;
      myHSize [1] += aShift;
    }
    aResult = Standard_True;
  }
  return aResult;
}

//=======================================================================
//function : Transformed
//purpose  : 
//=======================================================================

Bnd_B2x Bnd_B2x::Transformed (const gp_Trsf2d& theTrsf) const
{
  Bnd_B2x aResult;
  const gp_TrsfForm aForm = theTrsf.Form();
  const Standard_Real aScale = theTrsf.ScaleFactor();
  const Standard_Real aScaleAbs = Abs(aScale);
  if (aForm == gp_Identity)
    aResult = * this;
  else if (aForm== gp_Translation || aForm== gp_PntMirror || aForm== gp_Scale)
  {
    aResult.myCenter[0] =
      (RealType)(myCenter[0] * aScale + theTrsf.TranslationPart().X());
    aResult.myCenter[1] =
      (RealType)(myCenter[1] * aScale + theTrsf.TranslationPart().Y());
    aResult.myHSize[0] = (RealType)(myHSize[0] * aScaleAbs);
    aResult.myHSize[1] = (RealType)(myHSize[1] * aScaleAbs);
  } else {
    gp_XY aCenter ((Standard_Real)myCenter[0],
                   (Standard_Real)myCenter[1]);
    theTrsf.Transforms (aCenter);
    aResult.myCenter[0] = (RealType)aCenter.X();
    aResult.myCenter[1] = (RealType)aCenter.Y();

    const Standard_Real * aMat = &theTrsf.HVectorialPart().Value(1,1);
    aResult.myHSize[0] = (RealType)(aScaleAbs * (Abs(aMat[0]) * myHSize[0]+
                                                 Abs(aMat[1]) * myHSize[1]));
    aResult.myHSize[1] = (RealType)(aScaleAbs * (Abs(aMat[2]) * myHSize[0]+
                                                 Abs(aMat[3]) * myHSize[1]));
  }
  return aResult;
}

//=======================================================================
//function : IsOut
//purpose  : Intersection Box - Circle
//=======================================================================

Standard_Boolean Bnd_B2x::IsOut (const gp_XY&           theCenter,
                                 const Standard_Real    theRadius,
                                 const Standard_Boolean isCircleHollow) const
{
  Standard_Boolean aResult (Standard_True);
  if (isCircleHollow == Standard_False) {
    // vector from the center of the circle to the nearest box face
    const Standard_Real aDist[2] = {
      Abs(theCenter.X()-Standard_Real(myCenter[0])) - Standard_Real(myHSize[0]),
      Abs(theCenter.Y()-Standard_Real(myCenter[1])) - Standard_Real(myHSize[1])
    };
    Standard_Real aD (0.);
    if (aDist[0] > 0.)
      aD  = aDist[0]*aDist[0];
    if (aDist[1] > 0.)
      aD += aDist[1]*aDist[1];
    aResult = (aD > theRadius*theRadius);
  } else {
    const Standard_Real aDistC[2] = {
      Abs(theCenter.X()-Standard_Real(myCenter[0])),
      Abs(theCenter.Y()-Standard_Real(myCenter[1]))
    };
    // vector from the center of the circle to the nearest box face
    Standard_Real aDist[2] = {
      aDistC[0] - Standard_Real(myHSize[0]),
      aDistC[1] - Standard_Real(myHSize[1])
    };
    Standard_Real aD (0.);
    if (aDist[0] > 0.)
      aD  = aDist[0]*aDist[0];
    if (aDist[1] > 0.)
      aD += aDist[1]*aDist[1];
    if (aD < theRadius*theRadius) {
      // the box intersects the solid circle; check if it is completely
      // inside the circle (in such case return isOut==True)
      aDist[0] = aDistC[0] + Standard_Real(myHSize[0]);
      aDist[1] = aDistC[1] + Standard_Real(myHSize[1]);
      if (aDist[0]*aDist[0]+aDist[1]*aDist[1] > theRadius*theRadius)
        aResult = Standard_False;
    }
  }
  return aResult;
}

//=======================================================================
//function : IsOut
//purpose  : Intersection Box - transformed Box
//=======================================================================

Standard_Boolean Bnd_B2x::IsOut (const Bnd_B2x&   theBox,
                                 const gp_Trsf2d& theTrsf) const
{
  Standard_Boolean aResult (Standard_False);
  const gp_TrsfForm aForm = theTrsf.Form();
  const Standard_Real aScale = theTrsf.ScaleFactor();
  const Standard_Real aScaleAbs = Abs(aScale);
  if (aForm == gp_Translation || aForm == gp_Identity ||
      aForm == gp_PntMirror   || aForm == gp_Scale)
  {
    aResult =
      (Abs (RealType(theBox.myCenter[0]*aScale + theTrsf.TranslationPart().X())
            - myCenter[0])
         > RealType (theBox.myHSize[0]*aScaleAbs) + myHSize[0] ||
       Abs (RealType(theBox.myCenter[1]*aScale + theTrsf.TranslationPart().Y())
            - myCenter[1])
         > RealType (theBox.myHSize[1]*aScaleAbs) + myHSize[1]);

  }
  else {
    // theBox is transformed and we check the resulting (enlarged) box against
    // 'this' box.
    const Standard_Real * aMat = &theTrsf.HVectorialPart().Value(1,1);

    gp_XY aCenter ((Standard_Real)theBox.myCenter[0],
                   (Standard_Real)theBox.myCenter[1]);
    theTrsf.Transforms (aCenter);
    const Standard_Real aDist[2] = {
      aCenter.X() - (Standard_Real)myCenter[0],
      aCenter.Y() - (Standard_Real)myCenter[1]
    };
    const Standard_Real aMatAbs[4] = {
      Abs(aMat[0]), Abs(aMat[1]), Abs(aMat[2]), Abs(aMat[3])
    };
    if (Abs(aDist[0]) > (aScaleAbs * (aMatAbs[0]*theBox.myHSize[0]+
                                      aMatAbs[1]*theBox.myHSize[1]) +
                         (Standard_Real)myHSize[0])    ||
        Abs(aDist[1]) > (aScaleAbs * (aMatAbs[2]*theBox.myHSize[0]+
                                      aMatAbs[3]*theBox.myHSize[1]) +
                         (Standard_Real)myHSize[1]))
      aResult = Standard_True;

    else {
    // theBox is rotated, scaled and translated. We apply the reverse
    // translation and scaling then check against the rotated box 'this'
      if ((Abs(aMat[0]*aDist[0]+aMat[2]*aDist[1])
           > theBox.myHSize[0]*aScaleAbs + (aMatAbs[0]*myHSize[0] +
                                            aMatAbs[2]*myHSize[1])) ||
          (Abs(aMat[1]*aDist[0]+aMat[3]*aDist[1])
           > theBox.myHSize[1]*aScaleAbs + (aMatAbs[1]*myHSize[0] +
                                            aMatAbs[3]*myHSize[1])))
        aResult = Standard_True;
    }
  }
  return aResult;
}

//=======================================================================
//function : IsOut
//purpose  : Intersection Box - Line
//=======================================================================

Standard_Boolean Bnd_B2x::IsOut (const gp_Ax2d& theLine) const
{
  if (IsVoid())
    return Standard_True;
  // Intersect the line containing the segment.
  const Standard_Real aProd[3] = {
    theLine.Direction().XY() ^ (gp_XY (myCenter[0] - theLine.Location().X(),
                                       myCenter[1] - theLine.Location().Y())),
    theLine.Direction().X() * Standard_Real(myHSize[1]),
    theLine.Direction().Y() * Standard_Real(myHSize[0])
  };
  return (Abs(aProd[0]) > (Abs(aProd[1]) + Abs(aProd[2])));
}

//=======================================================================
//function : IsOut
//purpose  : Intersection Box - Segment
//=======================================================================

Standard_Boolean Bnd_B2x::IsOut (const gp_XY& theP0, const gp_XY& theP1) const
{
  Standard_Boolean aResult (Standard_True);
  if (IsVoid() == Standard_False)
  {
    // Intersect the line containing the segment.
    const gp_XY aSegDelta (theP1 - theP0);
    const Standard_Real aProd[3] = {
      aSegDelta ^ (gp_XY (myCenter[0], myCenter[1]) - theP0),
      aSegDelta.X() * Standard_Real(myHSize[1]),
      aSegDelta.Y() * Standard_Real(myHSize[0])
    };
    if (Abs(aProd[0]) < (Abs(aProd[1]) + Abs(aProd[2])))
    {
      // Intersection with line detected; check the segment as bounding box
      const gp_XY aHSeg    (0.5 * aSegDelta.X(), 0.5 * aSegDelta.Y());
      const gp_XY aHSegAbs (Abs(aHSeg.X()), Abs(aHSeg.Y()));
      aResult = _compareDistD (gp_XY((Standard_Real)myHSize[0],
                                     (Standard_Real)myHSize[1]) + aHSegAbs,
                               theP0 + aHSeg-gp_XY((Standard_Real)myCenter[0],
                                                   (Standard_Real)myCenter[1]));
    }
  }
  return aResult;
}

//=======================================================================
//function : IsIn
//purpose  : Test the complete inclusion of this box in transformed theOtherBox
//=======================================================================

Standard_Boolean Bnd_B2x::IsIn (const Bnd_B2x&   theBox,
                                const gp_Trsf2d& theTrsf) const
{
  Standard_Boolean aResult (Standard_False);
  const gp_TrsfForm aForm = theTrsf.Form();
  const Standard_Real aScale = theTrsf.ScaleFactor();
  const Standard_Real aScaleAbs = Abs(aScale);
  if (aForm == gp_Translation || aForm == gp_Identity ||
      aForm == gp_PntMirror   || aForm == gp_Scale)
  {
    aResult =
      (Abs (RealType(theBox.myCenter[0]*aScale + theTrsf.TranslationPart().X())
            - myCenter[0])
         < RealType (theBox.myHSize[0]*aScaleAbs) - myHSize[0] &&
       Abs (RealType(theBox.myCenter[1]*aScale + theTrsf.TranslationPart().Y())
            - myCenter[1])
         < RealType (theBox.myHSize[1]*aScaleAbs) - myHSize[1]);

  } else {
    // theBox is rotated, scaled and translated. We apply the reverse
    // translation and scaling then check against the rotated box 'this'
    const Standard_Real * aMat = &theTrsf.HVectorialPart().Value(1,1);
    gp_XY aCenter ((Standard_Real)theBox.myCenter[0],
                   (Standard_Real)theBox.myCenter[1]);
    theTrsf.Transforms (aCenter);
    const Standard_Real aDist[2] = {
      aCenter.X() - (Standard_Real)myCenter[0],
      aCenter.Y() - (Standard_Real)myCenter[1]
    };
    if ((Abs(aMat[0]*aDist[0]+aMat[2]*aDist[1])
         < theBox.myHSize[0]*aScaleAbs - (Abs(aMat[0])*myHSize[0] +
                                          Abs(aMat[2])*myHSize[1])) &&
        (Abs(aMat[1]*aDist[0]+aMat[3]*aDist[1])
         < theBox.myHSize[1]*aScaleAbs - (Abs(aMat[1])*myHSize[0] +
                                          Abs(aMat[3])*myHSize[1])))
      aResult = Standard_True;
  }
  return aResult;
}

APT Browse - Built by Thomas Orozco.