/[escript]/trunk/esys2/escript/src/Data/Data.cpp
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Contents of /trunk/esys2/escript/src/Data/Data.cpp

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Revision 106 - (show annotations)
Thu Dec 23 07:20:12 2004 UTC (14 years, 5 months ago) by jgs
File size: 23609 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 Data
543 Data::sign() const
544 {
545 return escript::unaryOp(*this,escript::fsign);
546 }
547
548 Data
549 Data::abs() const
550 {
551 return escript::unaryOp(*this,(Data::UnaryDFunPtr)::fabs);
552 }
553
554 Data
555 Data::neg() const
556 {
557 return escript::unaryOp(*this,negate<double>());
558 }
559
560 Data
561 Data::pos() const
562 {
563 return (*this);
564 }
565
566 Data
567 Data::exp() const
568 {
569 return escript::unaryOp(*this,(Data::UnaryDFunPtr)::exp);
570 }
571
572 Data
573 Data::sqrt() const
574 {
575 return escript::unaryOp(*this,(Data::UnaryDFunPtr)::sqrt);
576 }
577
578 double
579 Data::Lsup() const
580 {
581 //
582 // set the initial absolute maximum value to zero
583 return algorithm(DataAlgorithmAdapter<AbsMax>(0));
584 }
585
586 double
587 Data::sup() const
588 {
589 //
590 // set the initial maximum value to min possible double
591 return algorithm(DataAlgorithmAdapter<FMax>(numeric_limits<double>::min()));
592 }
593
594 double
595 Data::inf() const
596 {
597 //
598 // set the initial minimum value to max possible double
599 return algorithm(DataAlgorithmAdapter<FMin>(numeric_limits<double>::max()));
600 }
601
602 Data
603 Data::maxval() const
604 {
605 return dp_algorithm(DataAlgorithmAdapter<FMax>(numeric_limits<double>::min()));
606 }
607
608 Data
609 Data::minval() const
610 {
611 return dp_algorithm(DataAlgorithmAdapter<FMin>(numeric_limits<double>::max()));
612 }
613
614 Data
615 Data::length() const
616 {
617 return dp_algorithm(DataAlgorithmAdapter<Length>(0));
618 }
619
620 Data
621 Data::trace() const
622 {
623 return dp_algorithm(DataAlgorithmAdapter<Trace>(0));
624 }
625
626 Data
627 Data::transpose(int axis) const
628 {
629 // not implemented
630 throw DataException("Error - Data::transpose not implemented yet.");
631 return Data();
632 }
633
634 void
635 Data::saveDX(std::string fileName) const
636 {
637 getDomain().saveDX(fileName,*this);
638 return;
639 }
640
641 Data&
642 Data::operator+=(const Data& right)
643 {
644 binaryOp(right,plus<double>());
645 return (*this);
646 }
647
648 Data&
649 Data::operator+=(const boost::python::object& right)
650 {
651 binaryOp(right,plus<double>());
652 return (*this);
653 }
654
655 Data&
656 Data::operator-=(const Data& right)
657 {
658 binaryOp(right,minus<double>());
659 return (*this);
660 }
661
662 Data&
663 Data::operator-=(const boost::python::object& right)
664 {
665 binaryOp(right,minus<double>());
666 return (*this);
667 }
668
669 Data&
670 Data::operator*=(const Data& right)
671 {
672 binaryOp(right,multiplies<double>());
673 return (*this);
674 }
675
676 Data&
677 Data::operator*=(const boost::python::object& right)
678 {
679 binaryOp(right,multiplies<double>());
680 return (*this);
681 }
682
683 Data&
684 Data::operator/=(const Data& right)
685 {
686 binaryOp(right,divides<double>());
687 return (*this);
688 }
689
690 Data&
691 Data::operator/=(const boost::python::object& right)
692 {
693 binaryOp(right,divides<double>());
694 return (*this);
695 }
696
697 Data
698 Data::powO(const boost::python::object& right) const
699 {
700 Data result;
701 result.copy(*this);
702 result.binaryOp(right,(Data::BinaryDFunPtr)::pow);
703 return result;
704 }
705
706 Data
707 Data::powD(const Data& right) const
708 {
709 Data result;
710 result.copy(*this);
711 result.binaryOp(right,(Data::BinaryDFunPtr)::pow);
712 return result;
713 }
714
715 //
716 // NOTE: It is essential to specify the namepsace this operator belongs to
717 Data
718 escript::operator+(const Data& left, const Data& right)
719 {
720 Data result;
721 //
722 // perform a deep copy
723 result.copy(left);
724 result+=right;
725 return result;
726 }
727
728 //
729 // NOTE: It is essential to specify the namepsace this operator belongs to
730 Data
731 escript::operator-(const Data& left, const Data& right)
732 {
733 Data result;
734 //
735 // perform a deep copy
736 result.copy(left);
737 result-=right;
738 return result;
739 }
740
741 //
742 // NOTE: It is essential to specify the namepsace this operator belongs to
743 Data
744 escript::operator*(const Data& left, const Data& right)
745 {
746 Data result;
747 //
748 // perform a deep copy
749 result.copy(left);
750 result*=right;
751 return result;
752 }
753
754 //
755 // NOTE: It is essential to specify the namepsace this operator belongs to
756 Data
757 escript::operator/(const Data& left, const Data& right)
758 {
759 Data result;
760 //
761 // perform a deep copy
762 result.copy(left);
763 result/=right;
764 return result;
765 }
766
767 //
768 // NOTE: It is essential to specify the namepsace this operator belongs to
769 Data
770 escript::operator+(const Data& left, const boost::python::object& right)
771 {
772 //
773 // Convert to DataArray format if possible
774 DataArray temp(right);
775 Data result;
776 //
777 // perform a deep copy
778 result.copy(left);
779 result+=right;
780 return result;
781 }
782
783 //
784 // NOTE: It is essential to specify the namepsace this operator belongs to
785 Data
786 escript::operator-(const Data& left, const boost::python::object& right)
787 {
788 //
789 // Convert to DataArray format if possible
790 DataArray temp(right);
791 Data result;
792 //
793 // perform a deep copy
794 result.copy(left);
795 result-=right;
796 return result;
797 }
798
799 //
800 // NOTE: It is essential to specify the namepsace this operator belongs to
801 Data
802 escript::operator*(const Data& left, const boost::python::object& right)
803 {
804 //
805 // Convert to DataArray format if possible
806 DataArray temp(right);
807 Data result;
808 //
809 // perform a deep copy
810 result.copy(left);
811 result*=right;
812 return result;
813 }
814
815 //
816 // NOTE: It is essential to specify the namepsace this operator belongs to
817 Data
818 escript::operator/(const Data& left, const boost::python::object& right)
819 {
820 //
821 // Convert to DataArray format if possible
822 DataArray temp(right);
823 Data result;
824 //
825 // perform a deep copy
826 result.copy(left);
827 result/=right;
828 return result;
829 }
830
831 //
832 // NOTE: It is essential to specify the namepsace this operator belongs to
833 Data
834 escript::operator+(const boost::python::object& left, const Data& right)
835 {
836 //
837 // Construct the result using the given value and the other parameters
838 // from right
839 Data result(left,right);
840 result+=right;
841 return result;
842 }
843
844 //
845 // NOTE: It is essential to specify the namepsace this operator belongs to
846 Data
847 escript::operator-(const boost::python::object& left, const Data& right)
848 {
849 //
850 // Construct the result using the given value and the other parameters
851 // from right
852 Data result(left,right);
853 result-=right;
854 return result;
855 }
856
857 //
858 // NOTE: It is essential to specify the namepsace this operator belongs to
859 Data
860 escript::operator*(const boost::python::object& left, const Data& right)
861 {
862 //
863 // Construct the result using the given value and the other parameters
864 // from right
865 Data result(left,right);
866 result*=right;
867 return result;
868 }
869
870 //
871 // NOTE: It is essential to specify the namepsace this operator belongs to
872 Data
873 escript::operator/(const boost::python::object& left, const Data& right)
874 {
875 //
876 // Construct the result using the given value and the other parameters
877 // from right
878 Data result(left,right);
879 result/=right;
880 return result;
881 }
882
883 //
884 // NOTE: It is essential to specify the namepsace this operator belongs to
885 //bool escript::operator==(const Data& left, const Data& right)
886 //{
887 // /*
888 // NB: this operator does very little at this point, and isn't to
889 // be relied on. Requires further implementation.
890 // */
891 //
892 // bool ret;
893 //
894 // if (left.isEmpty()) {
895 // if(!right.isEmpty()) {
896 // ret = false;
897 // } else {
898 // ret = true;
899 // }
900 // }
901 //
902 // if (left.isConstant()) {
903 // if(!right.isConstant()) {
904 // ret = false;
905 // } else {
906 // ret = true;
907 // }
908 // }
909 //
910 // if (left.isTagged()) {
911 // if(!right.isTagged()) {
912 // ret = false;
913 // } else {
914 // ret = true;
915 // }
916 // }
917 //
918 // if (left.isExpanded()) {
919 // if(!right.isExpanded()) {
920 // ret = false;
921 // } else {
922 // ret = true;
923 // }
924 // }
925 //
926 // return ret;
927 //}
928
929 Data
930 Data::getItem(const boost::python::object& key) const
931 {
932 const DataArrayView& view=getPointDataView();
933
934 DataArrayView::RegionType slice_region=view.getSliceRegion(key);
935
936 if (slice_region.size()!=view.getRank()) {
937 throw DataException("Error - slice size does not match Data rank.");
938 }
939
940 return getSlice(slice_region);
941 }
942
943 Data
944 Data::getSlice(const DataArrayView::RegionType& region) const
945 {
946 return Data(*this,region);
947 }
948
949 void
950 Data::setItemO(const boost::python::object& key,
951 const boost::python::object& value)
952 {
953 Data tempData(value,getFunctionSpace());
954 setItemD(key,tempData);
955 }
956
957 void
958 Data::setItemD(const boost::python::object& key,
959 const Data& value)
960 {
961 const DataArrayView& view=getPointDataView();
962 DataArrayView::RegionType slice_region=view.getSliceRegion(key);
963 if (slice_region.size()!=view.getRank()) {
964 throw DataException("Error - slice size does not match Data rank.");
965 }
966 setSlice(value,slice_region);
967 }
968
969 void
970 Data::setSlice(const Data& value,
971 const DataArrayView::RegionType& region)
972 {
973 Data tempValue(value);
974 typeMatchLeft(tempValue);
975 typeMatchRight(tempValue);
976 m_data->setSlice(tempValue.m_data.get(),region);
977 }
978
979 void
980 Data::typeMatchLeft(Data& right) const
981 {
982 if (isExpanded()){
983 right.expand();
984 } else if (isTagged()) {
985 if (right.isConstant()) {
986 right.tag();
987 }
988 }
989 }
990
991 void
992 Data::typeMatchRight(const Data& right)
993 {
994 if (isTagged()) {
995 if (right.isExpanded()) {
996 expand();
997 }
998 } else if (isConstant()) {
999 if (right.isExpanded()) {
1000 expand();
1001 } else if (right.isTagged()) {
1002 tag();
1003 }
1004 }
1005 }
1006
1007 void
1008 Data::setTaggedValue(int tagKey,
1009 const boost::python::object& value)
1010 {
1011 //
1012 // Ensure underlying data object is of type DataTagged
1013 tag();
1014
1015 if (!isTagged()) {
1016 throw DataException("Error - DataTagged conversion failed!!");
1017 }
1018
1019 //
1020 // Construct DataArray from boost::python::object input value
1021 DataArray valueDataArray(value);
1022
1023 //
1024 // Call DataAbstract::setTaggedValue
1025 m_data->setTaggedValue(tagKey,valueDataArray.getView());
1026 }
1027
1028 /*
1029 Note: this version removed for now. Not needed, and breaks escript.cpp
1030 void
1031 Data::setTaggedValue(int tagKey,
1032 const DataArrayView& value)
1033 {
1034 //
1035 // Ensure underlying data object is of type DataTagged
1036 tag();
1037
1038 if (!isTagged()) {
1039 throw DataException("Error - DataTagged conversion failed!!");
1040 }
1041
1042 //
1043 // Call DataAbstract::setTaggedValue
1044 m_data->setTaggedValue(tagKey,value);
1045 }
1046 */
1047
1048 ostream& escript::operator<<(ostream& o, const Data& data)
1049 {
1050 o << data.toString();
1051 return o;
1052 }

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