return ret.retn();
}
+/*!
+ * Returns a new DataArrayInt whose contents is computed using \a this that must be a
+ * scaled array (monotonically increasing).
+from that of \a this and \a
+ * offsets arrays as follows. \a offsets is a one-dimensional array considered as an
+ * "index" array of a "iota" array, thus, whose each element gives an index of a group
+ * beginning within the "iota" array. And \a this is a one-dimensional array
+ * considered as a selector of groups described by \a offsets to include into the result array.
+ * \throw If \a is NULL.
+ * \throw If \a this is not allocated.
+ * \throw If \a this->getNumberOfComponents() != 1.
+ * \throw If \a this->getNumberOfTuples() == 0.
+ * \throw If \a this is not monotonically increasing.
+ * \throw If any element of ids in ( \a gb \a end \a step ) points outside the scale in \a this.
+ *
+ * \b Example: <br>
+ * - \a bg , \a end and \a step : (0,5,2)
+ * - \a this: [0,3,6,10,14,20]
+ * - result array: [0,0,0, 2,2,2,2, 4,4,4,4,4,4] == <br>
+ */
+DataArrayInt *DataArrayInt::buildExplicitArrOfSliceOnScaledArr(int bg, int end, int step) const throw(INTERP_KERNEL::Exception)
+{
+ if(!isAllocated())
+ throw INTERP_KERNEL::Exception("DataArrayInt::buildExplicitArrOfSliceOnScaledArr : not allocated array !");
+ if(getNumberOfComponents()!=1)
+ throw INTERP_KERNEL::Exception("DataArrayInt::buildExplicitArrOfSliceOnScaledArr : number of components is expected to be equal to one !");
+ int nbOfTuples(getNumberOfTuples());
+ if(nbOfTuples==0)
+ throw INTERP_KERNEL::Exception("DataArrayInt::buildExplicitArrOfSliceOnScaledArr : number of tuples must be != 0 !");
+ const int *ids(begin());
+ int nbOfEltsInSlc(GetNumberOfItemGivenBESRelative(bg,end,step,"DataArrayInt::buildExplicitArrOfSliceOnScaledArr")),sz(0),pos(bg);
+ for(int i=0;i<nbOfEltsInSlc;i++,pos+=step)
+ {
+ if(pos>=0 && pos<nbOfTuples-1)
+ {
+ int delta(ids[pos+1]-ids[pos]);
+ sz+=delta;
+ if(delta<0)
+ {
+ std::ostringstream oss; oss << "DataArrayInt::buildExplicitArrOfSliceOnScaledArr : At pos #" << i << " of input slice, value is " << pos << " and at this pos this is not monotonically increasing !";
+ throw INTERP_KERNEL::Exception(oss.str().c_str());
+ }
+ }
+ else
+ {
+ std::ostringstream oss; oss << "DataArrayInt::buildExplicitArrOfSliceOnScaledArr : At pos #" << i << " of input slice, value is " << pos << " should be in [0," << nbOfTuples-1 << ") !";
+ throw INTERP_KERNEL::Exception(oss.str().c_str());
+ }
+ }
+ MEDCouplingAutoRefCountObjectPtr<DataArrayInt> ret(DataArrayInt::New()); ret->alloc(sz,1);
+ int *retPtr(ret->getPointer());
+ pos=bg;
+ for(int i=0;i<nbOfEltsInSlc;i++,pos+=step)
+ {
+ int delta(ids[pos+1]-ids[pos]);
+ for(int j=0;j<delta;j++,retPtr++)
+ *retPtr=pos;
+ }
+ return ret.retn();
+}
+
/*!
* Given in input ranges \a ranges, it returns a newly allocated DataArrayInt instance having one component and the same number of tuples than \a this.
* For each tuple at place **i** in \a this it tells which is the first range in \a ranges that contains value \c this->getIJ(i,0) and put the result
