/[escript]/trunk/escript/src/Data.cpp
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Contents of /trunk/escript/src/Data.cpp

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Revision 102 - (show annotations)
Wed Dec 15 07:08:39 2004 UTC (15 years ago) by jgs
Original Path: trunk/esys2/escript/src/Data/Data.cpp
File size: 23417 byte(s)
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1 // $Id$
2 /*=============================================================================
3
4 ******************************************************************************
5 * *
6 * COPYRIGHT ACcESS 2004 - All Rights Reserved *
7 * *
8 * This software is the property of ACcESS. No part of this code *
9 * may be copied in any form or by any means without the expressed written *
10 * consent of ACcESS. Copying, use or modification of this software *
11 * by any unauthorised person is illegal unless that *
12 * person has a software license agreement with ACcESS. *
13 * *
14 ******************************************************************************
15
16 ******************************************************************************/
17
18 #include "escript/Data/Data.h"
19
20 #include <iostream>
21 #include <algorithm>
22 #include <vector>
23 #include <exception>
24 #include <functional>
25 #include <math.h>
26
27 #include <boost/python/str.hpp>
28 #include <boost/python/extract.hpp>
29 #include <boost/python/long.hpp>
30
31 #include "escript/Data/DataException.h"
32
33 #include "escript/Data/DataExpanded.h"
34 #include "escript/Data/DataConstant.h"
35 #include "escript/Data/DataTagged.h"
36 #include "escript/Data/DataEmpty.h"
37 #include "escript/Data/DataArray.h"
38 #include "escript/Data/DataAlgorithm.h"
39 #include "escript/Data/FunctionSpaceFactory.h"
40 #include "escript/Data/AbstractContinuousDomain.h"
41 #include "escript/Data/UnaryFuncs.h"
42
43 using namespace std;
44 using namespace boost::python;
45 using namespace boost;
46 using namespace escript;
47
48 Data::Data()
49 {
50 //
51 // Default data is type DataEmpty
52 DataAbstract* temp=new DataEmpty();
53 shared_ptr<DataAbstract> temp_data(temp);
54 m_data=temp_data;
55 }
56
57 Data::Data(double value,
58 const tuple& shape,
59 const FunctionSpace& what,
60 bool expanded)
61 {
62 DataArrayView::ShapeType dataPointShape;
63 for (int i = 0; i < shape.attr("__len__")(); ++i) {
64 dataPointShape.push_back(extract<const int>(shape[i]));
65 }
66 DataArray temp(dataPointShape,value);
67 initialise(temp.getView(),what,expanded);
68 }
69
70 Data::Data(double value,
71 const DataArrayView::ShapeType& dataPointShape,
72 const FunctionSpace& what,
73 bool expanded)
74 {
75 DataArray temp(dataPointShape,value);
76 pair<int,int> dataShape=what.getDataShape();
77 initialise(temp.getView(),what,expanded);
78 }
79
80 Data::Data(const Data& inData)
81 {
82 m_data=inData.m_data;
83 }
84
85 Data::Data(const Data& inData,
86 const DataArrayView::RegionType& region)
87 {
88 //
89 // Create Data which is a slice of another Data
90 DataAbstract* tmp = inData.m_data->getSlice(region);
91 shared_ptr<DataAbstract> temp_data(tmp);
92 m_data=temp_data;
93 }
94
95 Data::Data(const Data& inData,
96 const FunctionSpace& functionspace)
97 {
98 if (inData.getFunctionSpace()==functionspace) {
99 m_data=inData.m_data;
100 } else {
101 Data tmp(0,inData.getPointDataView().getShape(),functionspace,true);
102 // Note for Lutz, Must use a reference or pointer to a derived object
103 // in order to get polymorphic behaviour. Shouldn't really
104 // be able to create an instance of AbstractDomain but that was done
105 // as a boost python work around which may no longer be required.
106 const AbstractDomain& inDataDomain=inData.getDomain();
107 if (inDataDomain==functionspace.getDomain()) {
108 inDataDomain.interpolateOnDomain(tmp,inData);
109 } else {
110 inDataDomain.interpolateACross(tmp,inData);
111 }
112 m_data=tmp.m_data;
113 }
114 }
115
116 Data::Data(const DataTagged::TagListType& tagKeys,
117 const DataTagged::ValueListType & values,
118 const DataArrayView& defaultValue,
119 const FunctionSpace& what,
120 bool expanded)
121 {
122 DataAbstract* temp=new DataTagged(tagKeys,values,defaultValue,what);
123 shared_ptr<DataAbstract> temp_data(temp);
124 m_data=temp_data;
125 if (expanded) {
126 expand();
127 }
128 }
129
130 Data::Data(const numeric::array& value,
131 const FunctionSpace& what,
132 bool expanded)
133 {
134 initialise(value,what,expanded);
135 }
136
137 Data::Data(const DataArrayView& value,
138 const FunctionSpace& what,
139 bool expanded)
140 {
141 initialise(value,what,expanded);
142 }
143
144 Data::Data(const object& value,
145 const FunctionSpace& what,
146 bool expanded)
147 {
148 numeric::array asNumArray(value);
149 initialise(asNumArray,what,expanded);
150 }
151
152 Data::Data(const object& value,
153 const Data& other)
154 {
155 //
156 // Create DataConstant using the given value and all other parameters
157 // copied from other. If value is a rank 0 object this Data
158 // will assume the point data shape of other.
159 DataArray temp(value);
160 if (temp.getView().getRank()==0) {
161 //
162 // Create a DataArray with the scalar value for all elements
163 DataArray temp2(other.getPointDataView().getShape(),temp.getView()());
164 initialise(temp2.getView(),other.getFunctionSpace(),false);
165 } else {
166 //
167 // Create a DataConstant with the same sample shape as other
168 initialise(temp.getView(),other.getFunctionSpace(),false);
169 }
170 }
171
172 escriptDataC
173 Data::getDataC()
174 {
175 escriptDataC temp;
176 temp.m_dataPtr=(void*)this;
177 return temp;
178 }
179
180 escriptDataC
181 Data::getDataC() const
182 {
183 escriptDataC temp;
184 temp.m_dataPtr=(void*)this;
185 return temp;
186 }
187
188 tuple
189 Data::getShapeTuple() const
190 {
191 const DataArrayView::ShapeType& shape=getDataPointShape();
192 switch(getDataPointRank()) {
193 case 0:
194 return make_tuple();
195 case 1:
196 return make_tuple(long_(shape[0]));
197 case 2:
198 return make_tuple(long_(shape[0]),long_(shape[1]));
199 case 3:
200 return make_tuple(long_(shape[0]),long_(shape[1]),long_(shape[2]));
201 case 4:
202 return make_tuple(long_(shape[0]),long_(shape[1]),long_(shape[2]),long_(shape[3]));
203 default:
204 throw DataException("Error - illegal Data rank.");
205 }
206 }
207
208 void
209 Data::copy(const Data& other)
210 {
211 //
212 // Perform a deep copy
213 {
214 DataExpanded* temp=dynamic_cast<DataExpanded*>(other.m_data.get());
215 if (temp!=0) {
216 //
217 // Construct a DataExpanded copy
218 DataAbstract* newData=new DataExpanded(*temp);
219 shared_ptr<DataAbstract> temp_data(newData);
220 m_data=temp_data;
221 return;
222 }
223 }
224 {
225 DataTagged* temp=dynamic_cast<DataTagged*>(other.m_data.get());
226 if (temp!=0) {
227 //
228 // Construct a DataTagged copy
229 DataAbstract* newData=new DataTagged(*temp);
230 shared_ptr<DataAbstract> temp_data(newData);
231 m_data=temp_data;
232 return;
233 }
234 }
235 {
236 DataConstant* temp=dynamic_cast<DataConstant*>(other.m_data.get());
237 if (temp!=0) {
238 //
239 // Construct a DataConstant copy
240 DataAbstract* newData=new DataConstant(*temp);
241 shared_ptr<DataAbstract> temp_data(newData);
242 m_data=temp_data;
243 return;
244 }
245 }
246 {
247 DataEmpty* temp=dynamic_cast<DataEmpty*>(other.m_data.get());
248 if (temp!=0) {
249 //
250 // Construct a DataEmpty copy
251 DataAbstract* newData=new DataEmpty();
252 shared_ptr<DataAbstract> temp_data(newData);
253 m_data=temp_data;
254 return;
255 }
256 }
257 throw DataException("Error - Copy not implemented for this Data type.");
258 }
259
260 void
261 Data::copyWithMask(const Data& other,
262 const Data& mask)
263 {
264 Data mask1;
265 Data mask2;
266
267 mask1 = mask.wherePositive();
268 mask2.copy(mask1);
269
270 mask1 *= other;
271 mask2 *= *this;
272 mask2 = *this - mask2;
273
274 *this = mask1 + mask2;
275 }
276
277 bool
278 Data::isExpanded() const
279 {
280 DataExpanded* temp=dynamic_cast<DataExpanded*>(m_data.get());
281 return (temp!=0);
282 }
283
284 bool
285 Data::isTagged() const
286 {
287 DataTagged* temp=dynamic_cast<DataTagged*>(m_data.get());
288 return (temp!=0);
289 }
290
291 bool
292 Data::isEmpty() const
293 {
294 DataEmpty* temp=dynamic_cast<DataEmpty*>(m_data.get());
295 return (temp!=0);
296 }
297
298 bool
299 Data::isConstant() const
300 {
301 DataConstant* temp=dynamic_cast<DataConstant*>(m_data.get());
302 return (temp!=0);
303 }
304
305 void
306 Data::expand()
307 {
308 if (isConstant()) {
309 DataConstant* tempDataConst=dynamic_cast<DataConstant*>(m_data.get());
310 DataAbstract* temp=new DataExpanded(*tempDataConst);
311 shared_ptr<DataAbstract> temp_data(temp);
312 m_data=temp_data;
313 } else if (isTagged()) {
314 DataTagged* tempDataTag=dynamic_cast<DataTagged*>(m_data.get());
315 DataAbstract* temp=new DataExpanded(*tempDataTag);
316 shared_ptr<DataAbstract> temp_data(temp);
317 m_data=temp_data;
318 } else if (isExpanded()) {
319 //
320 // do nothing
321 } else if (isEmpty()) {
322 throw DataException("Error - Expansion of DataEmpty not possible.");
323 } else {
324 throw DataException("Error - Expansion not implemented for this Data type.");
325 }
326 }
327
328 void
329 Data::tag()
330 {
331 if (isConstant()) {
332 DataConstant* tempDataConst=dynamic_cast<DataConstant*>(m_data.get());
333 DataAbstract* temp=new DataTagged(*tempDataConst);
334 shared_ptr<DataAbstract> temp_data(temp);
335 m_data=temp_data;
336 } else if (isTagged()) {
337 // do nothing
338 } else if (isExpanded()) {
339 throw DataException("Error - Creating tag data from DataExpanded not possible.");
340 } else if (isEmpty()) {
341 throw DataException("Error - Creating tag data from DataEmpty not possible.");
342 } else {
343 throw DataException("Error - Tagging not implemented for this Data type.");
344 }
345 }
346
347 void
348 Data::reshapeDataPoint(const DataArrayView::ShapeType& shape)
349 {
350 m_data->reshapeDataPoint(shape);
351 }
352
353 Data
354 Data::wherePositive() const
355 {
356 return escript::unaryOp(*this,bind2nd(greater<double>(),0.0));
357 }
358
359 Data
360 Data::whereNegative() const
361 {
362 return escript::unaryOp(*this,bind2nd(less<double>(),0.0));
363 }
364
365 Data
366 Data::whereNonNegative() const
367 {
368 return escript::unaryOp(*this,bind2nd(greater_equal<double>(),0.0));
369 }
370
371 Data
372 Data::whereNonPositive() const
373 {
374 return escript::unaryOp(*this,bind2nd(less_equal<double>(),0.0));
375 }
376
377 Data
378 Data::whereZero() const
379 {
380 return escript::unaryOp(*this,bind2nd(equal_to<double>(),0.0));
381 }
382
383 Data
384 Data::whereNonZero() const
385 {
386 return escript::unaryOp(*this,bind2nd(not_equal_to<double>(),0.0));
387 }
388
389 Data
390 Data::interpolate(const FunctionSpace& functionspace) const
391 {
392 return Data(*this,functionspace);
393 }
394
395 bool
396 Data::probeInterpolation(const FunctionSpace& functionspace) const
397 {
398 if (getFunctionSpace()==functionspace) {
399 return true;
400 } else {
401 const AbstractDomain& domain=getDomain();
402 if (domain==functionspace.getDomain()) {
403 return domain.probeInterpolationOnDomain(getFunctionSpace().getTypeCode(),functionspace.getTypeCode());
404 } else {
405 return domain.probeInterpolationACross(getFunctionSpace().getTypeCode(),functionspace.getDomain(),functionspace.getTypeCode());
406 }
407 }
408 }
409
410 Data
411 Data::gradOn(const FunctionSpace& functionspace) const
412 {
413 if (functionspace.getDomain()!=getDomain())
414 throw DataException("Error - gradient cannot be calculated on different domains.");
415 DataArrayView::ShapeType grad_shape=getPointDataView().getShape();
416 grad_shape.push_back(functionspace.getDim());
417 Data out(0.0,grad_shape,functionspace,true);
418 getDomain().setToGradient(out,*this);
419 return out;
420 }
421
422 Data
423 Data::grad() const
424 {
425 return gradOn(escript::function(getDomain()));
426 }
427
428 int
429 Data::getDataPointSize() const
430 {
431 return getPointDataView().noValues();
432 }
433
434 DataArrayView::ValueType::size_type
435 Data::getLength() const
436 {
437 return m_data->getLength();
438 }
439
440 const DataArrayView::ShapeType&
441 Data::getDataPointShape() const
442 {
443 return getPointDataView().getShape();
444 }
445
446 boost::python::numeric::array
447 Data::integrate() const
448 {
449 int index;
450 int rank = getDataPointRank();
451 DataArrayView::ShapeType shape = getDataPointShape();
452
453 //
454 // calculate the integral values
455 vector<double> integrals(getDataPointSize());
456 AbstractContinuousDomain::asAbstractContinuousDomain(getDomain()).setToIntegrals(integrals,*this);
457
458 //
459 // create the numeric array to be returned
460 // and load the array with the integral values
461 boost::python::numeric::array bp_array(1.0);
462 if (rank==0) {
463 index = 0;
464 bp_array[0] = integrals[index];
465 }
466 if (rank==1) {
467 bp_array.resize(shape[0]);
468 for (int i=0; i<shape[0]; i++) {
469 index = i;
470 bp_array[i] = integrals[index];
471 }
472 }
473 if (rank==2) {
474 bp_array.resize(shape[0],shape[1]);
475 for (int i=0; i<shape[0]; i++) {
476 for (int j=0; j<shape[1]; j++) {
477 index = i + shape[0] * j;
478 bp_array[i,j] = integrals[index];
479 }
480 }
481 }
482 if (rank==3) {
483 bp_array.resize(shape[0],shape[1],shape[2]);
484 for (int i=0; i<shape[0]; i++) {
485 for (int j=0; j<shape[1]; j++) {
486 for (int k=0; k<shape[2]; k++) {
487 index = i + shape[0] * ( j + shape[1] * k );
488 bp_array[i,j,k] = integrals[index];
489 }
490 }
491 }
492 }
493 if (rank==4) {
494 bp_array.resize(shape[0],shape[1],shape[2],shape[3]);
495 for (int i=0; i<shape[0]; i++) {
496 for (int j=0; j<shape[1]; j++) {
497 for (int k=0; k<shape[2]; k++) {
498 for (int l=0; l<shape[3]; l++) {
499 index = i + shape[0] * ( j + shape[1] * ( k + shape[2] * l ) );
500 bp_array[i,j,k,l] = integrals[index];
501 }
502 }
503 }
504 }
505 }
506
507 //
508 // return the loaded array
509 return bp_array;
510 }
511
512 Data
513 Data::sin() const
514 {
515 return escript::unaryOp(*this,(Data::UnaryDFunPtr)::sin);
516 }
517
518 Data
519 Data::cos() const
520 {
521 return escript::unaryOp(*this,(Data::UnaryDFunPtr)::cos);
522 }
523
524 Data
525 Data::tan() const
526 {
527 return escript::unaryOp(*this,(Data::UnaryDFunPtr)::tan);
528 }
529
530 Data
531 Data::log() const
532 {
533 return escript::unaryOp(*this,(Data::UnaryDFunPtr)::log10);
534 }
535
536 Data
537 Data::ln() const
538 {
539 return escript::unaryOp(*this,(Data::UnaryDFunPtr)::log);
540 }
541
542 double
543 Data::Lsup() const
544 {
545 //
546 // set the initial absolute maximum value to zero
547 return algorithm(DataAlgorithmAdapter<AbsMax>(0));
548 }
549
550 double
551 Data::sup() const
552 {
553 //
554 // set the initial maximum value to min possible double
555 return algorithm(DataAlgorithmAdapter<FMax>(numeric_limits<double>::min()));
556 }
557
558 double
559 Data::inf() const
560 {
561 //
562 // set the initial minimum value to max possible double
563 return algorithm(DataAlgorithmAdapter<FMin>(numeric_limits<double>::max()));
564 }
565
566 Data
567 Data::maxval() const
568 {
569 // not implemented - will use dp_algorithm
570 return (*this);
571 }
572
573 Data
574 Data::minval() const
575 {
576 // not implemented - will use dp_algorithm
577 return (*this);
578 }
579
580 Data
581 Data::length() const
582 {
583 // not implemented - will use dp_algorithm
584 return (*this);
585 }
586
587 Data
588 Data::trace() const
589 {
590 // not implemented - will use dp_algorithm
591 return (*this);
592 }
593
594 Data
595 Data::transpose(int axis) const
596 {
597 // not implemented
598 return (*this);
599 }
600
601 Data
602 Data::sign() const
603 {
604 return escript::unaryOp(*this,escript::fsign);
605 }
606
607 Data
608 Data::abs() const
609 {
610 return escript::unaryOp(*this,(Data::UnaryDFunPtr)::fabs);
611 }
612
613 Data
614 Data::neg() const
615 {
616 return escript::unaryOp(*this,negate<double>());
617 }
618
619 Data
620 Data::pos() const
621 {
622 return (*this);
623 }
624
625 Data
626 Data::exp() const
627 {
628 return escript::unaryOp(*this,(Data::UnaryDFunPtr)::exp);
629 }
630
631 Data
632 Data::sqrt() const
633 {
634 return escript::unaryOp(*this,(Data::UnaryDFunPtr)::sqrt);
635 }
636
637 Data&
638 Data::operator+=(const Data& right)
639 {
640 binaryOp(right,plus<double>());
641 return (*this);
642 }
643
644 Data&
645 Data::operator+=(const boost::python::object& right)
646 {
647 binaryOp(right,plus<double>());
648 return (*this);
649 }
650
651 Data&
652 Data::operator-=(const Data& right)
653 {
654 binaryOp(right,minus<double>());
655 return (*this);
656 }
657
658 Data&
659 Data::operator-=(const boost::python::object& right)
660 {
661 binaryOp(right,minus<double>());
662 return (*this);
663 }
664
665 Data&
666 Data::operator*=(const Data& right)
667 {
668 binaryOp(right,multiplies<double>());
669 return (*this);
670 }
671
672 Data&
673 Data::operator*=(const boost::python::object& right)
674 {
675 binaryOp(right,multiplies<double>());
676 return (*this);
677 }
678
679 Data&
680 Data::operator/=(const Data& right)
681 {
682 binaryOp(right,divides<double>());
683 return (*this);
684 }
685
686 Data&
687 Data::operator/=(const boost::python::object& right)
688 {
689 binaryOp(right,divides<double>());
690 return (*this);
691 }
692
693 Data
694 Data::powO(const boost::python::object& right) const
695 {
696 Data result;
697 result.copy(*this);
698 result.binaryOp(right,(Data::BinaryDFunPtr)::pow);
699 return result;
700 }
701
702 Data
703 Data::powD(const Data& right) const
704 {
705 Data result;
706 result.copy(*this);
707 result.binaryOp(right,(Data::BinaryDFunPtr)::pow);
708 return result;
709 }
710
711 //
712 // NOTE: It is essential to specify the namepsace this operator belongs to
713 Data
714 escript::operator+(const Data& left, const Data& right)
715 {
716 Data result;
717 //
718 // perform a deep copy
719 result.copy(left);
720 result+=right;
721 return result;
722 }
723
724 //
725 // NOTE: It is essential to specify the namepsace this operator belongs to
726 Data
727 escript::operator-(const Data& left, const Data& right)
728 {
729 Data result;
730 //
731 // perform a deep copy
732 result.copy(left);
733 result-=right;
734 return result;
735 }
736
737 //
738 // NOTE: It is essential to specify the namepsace this operator belongs to
739 Data
740 escript::operator*(const Data& left, const Data& right)
741 {
742 Data result;
743 //
744 // perform a deep copy
745 result.copy(left);
746 result*=right;
747 return result;
748 }
749
750 //
751 // NOTE: It is essential to specify the namepsace this operator belongs to
752 Data
753 escript::operator/(const Data& left, const Data& right)
754 {
755 Data result;
756 //
757 // perform a deep copy
758 result.copy(left);
759 result/=right;
760 return result;
761 }
762
763 //
764 // NOTE: It is essential to specify the namepsace this operator belongs to
765 Data
766 escript::operator+(const Data& left, const boost::python::object& right)
767 {
768 //
769 // Convert to DataArray format if possible
770 DataArray temp(right);
771 Data result;
772 //
773 // perform a deep copy
774 result.copy(left);
775 result+=right;
776 return result;
777 }
778
779 //
780 // NOTE: It is essential to specify the namepsace this operator belongs to
781 Data
782 escript::operator-(const Data& left, const boost::python::object& right)
783 {
784 //
785 // Convert to DataArray format if possible
786 DataArray temp(right);
787 Data result;
788 //
789 // perform a deep copy
790 result.copy(left);
791 result-=right;
792 return result;
793 }
794
795 //
796 // NOTE: It is essential to specify the namepsace this operator belongs to
797 Data
798 escript::operator*(const Data& left, const boost::python::object& right)
799 {
800 //
801 // Convert to DataArray format if possible
802 DataArray temp(right);
803 Data result;
804 //
805 // perform a deep copy
806 result.copy(left);
807 result*=right;
808 return result;
809 }
810
811 //
812 // NOTE: It is essential to specify the namepsace this operator belongs to
813 Data
814 escript::operator/(const Data& left, const boost::python::object& right)
815 {
816 //
817 // Convert to DataArray format if possible
818 DataArray temp(right);
819 Data result;
820 //
821 // perform a deep copy
822 result.copy(left);
823 result/=right;
824 return result;
825 }
826
827 //
828 // NOTE: It is essential to specify the namepsace this operator belongs to
829 Data
830 escript::operator+(const boost::python::object& left, const Data& right)
831 {
832 //
833 // Construct the result using the given value and the other parameters
834 // from right
835 Data result(left,right);
836 result+=right;
837 return result;
838 }
839
840 //
841 // NOTE: It is essential to specify the namepsace this operator belongs to
842 Data
843 escript::operator-(const boost::python::object& left, const Data& right)
844 {
845 //
846 // Construct the result using the given value and the other parameters
847 // from right
848 Data result(left,right);
849 result-=right;
850 return result;
851 }
852
853 //
854 // NOTE: It is essential to specify the namepsace this operator belongs to
855 Data
856 escript::operator*(const boost::python::object& left, const Data& right)
857 {
858 //
859 // Construct the result using the given value and the other parameters
860 // from right
861 Data result(left,right);
862 result*=right;
863 return result;
864 }
865
866 //
867 // NOTE: It is essential to specify the namepsace this operator belongs to
868 Data
869 escript::operator/(const boost::python::object& left, const Data& right)
870 {
871 //
872 // Construct the result using the given value and the other parameters
873 // from right
874 Data result(left,right);
875 result/=right;
876 return result;
877 }
878
879 //
880 // NOTE: It is essential to specify the namepsace this operator belongs to
881 //bool escript::operator==(const Data& left, const Data& right)
882 //{
883 // /*
884 // NB: this operator does very little at this point, and isn't to
885 // be relied on. Requires further implementation.
886 // */
887 //
888 // bool ret;
889 //
890 // if (left.isEmpty()) {
891 // if(!right.isEmpty()) {
892 // ret = false;
893 // } else {
894 // ret = true;
895 // }
896 // }
897 //
898 // if (left.isConstant()) {
899 // if(!right.isConstant()) {
900 // ret = false;
901 // } else {
902 // ret = true;
903 // }
904 // }
905 //
906 // if (left.isTagged()) {
907 // if(!right.isTagged()) {
908 // ret = false;
909 // } else {
910 // ret = true;
911 // }
912 // }
913 //
914 // if (left.isExpanded()) {
915 // if(!right.isExpanded()) {
916 // ret = false;
917 // } else {
918 // ret = true;
919 // }
920 // }
921 //
922 // return ret;
923 //}
924
925 Data
926 Data::getItem(const boost::python::object& key) const
927 {
928 const DataArrayView& view=getPointDataView();
929
930 DataArrayView::RegionType slice_region=view.getSliceRegion(key);
931
932 if (slice_region.size()!=view.getRank()) {
933 throw DataException("Error - slice size does not match Data rank.");
934 }
935
936 return getSlice(slice_region);
937 }
938
939 Data
940 Data::getSlice(const DataArrayView::RegionType& region) const
941 {
942 return Data(*this,region);
943 }
944
945 void
946 Data::setItemO(const boost::python::object& key,
947 const boost::python::object& value)
948 {
949 Data tempData(value,getFunctionSpace());
950 setItemD(key,tempData);
951 }
952
953 void
954 Data::setItemD(const boost::python::object& key,
955 const Data& value)
956 {
957 const DataArrayView& view=getPointDataView();
958 DataArrayView::RegionType slice_region=view.getSliceRegion(key);
959 if (slice_region.size()!=view.getRank()) {
960 throw DataException("Error - slice size does not match Data rank.");
961 }
962 setSlice(value,slice_region);
963 }
964
965 void
966 Data::setSlice(const Data& value,
967 const DataArrayView::RegionType& region)
968 {
969 Data tempValue(value);
970 typeMatchLeft(tempValue);
971 typeMatchRight(tempValue);
972 m_data->setSlice(tempValue.m_data.get(),region);
973 }
974
975 void
976 Data::typeMatchLeft(Data& right) const
977 {
978 if (isExpanded()){
979 right.expand();
980 } else if (isTagged()) {
981 if (right.isConstant()) {
982 right.tag();
983 }
984 }
985 }
986
987 void
988 Data::typeMatchRight(const Data& right)
989 {
990 if (isTagged()) {
991 if (right.isExpanded()) {
992 expand();
993 }
994 } else if (isConstant()) {
995 if (right.isExpanded()) {
996 expand();
997 } else if (right.isTagged()) {
998 tag();
999 }
1000 }
1001 }
1002
1003 void
1004 Data::setTaggedValue(int tagKey,
1005 const boost::python::object& value)
1006 {
1007 //
1008 // Ensure underlying data object is of type DataTagged
1009 tag();
1010
1011 if (!isTagged()) {
1012 throw DataException("Error - DataTagged conversion failed!!");
1013 }
1014
1015 //
1016 // Construct DataArray from boost::python::object input value
1017 DataArray valueDataArray(value);
1018
1019 //
1020 // Call DataAbstract::setTaggedValue
1021 m_data->setTaggedValue(tagKey,valueDataArray.getView());
1022 }
1023
1024 /*
1025 Note: this version removed for now. Not needed, and breaks escript.cpp
1026 void
1027 Data::setTaggedValue(int tagKey,
1028 const DataArrayView& value)
1029 {
1030 //
1031 // Ensure underlying data object is of type DataTagged
1032 tag();
1033
1034 if (!isTagged()) {
1035 throw DataException("Error - DataTagged conversion failed!!");
1036 }
1037
1038 //
1039 // Call DataAbstract::setTaggedValue
1040 m_data->setTaggedValue(tagKey,value);
1041 }
1042 */
1043
1044 ostream& escript::operator<<(ostream& o, const Data& data)
1045 {
1046 o << data.toString();
1047 return o;
1048 }

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