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//# tCompressFloat.cc: Test program for class CompressFloat
//# Copyright (C) 2001,2002
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This program is free software; you can redistribute it and/or modify it
//# under the terms of the GNU General Public License as published by the Free
//# Software Foundation; either version 2 of the License, or (at your option)
//# any later version.
//#
//# This program is distributed in the hope that it will be useful, but WITHOUT
//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
//# more details.
//#
//# You should have received a copy of the GNU General Public License along
//# with this program; if not, write to the Free Software Foundation, Inc.,
//# 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: aips2-request@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
//#
//# $Id$
#include <casacore/tables/Tables/TableDesc.h>
#include <casacore/tables/Tables/SetupNewTab.h>
#include <casacore/tables/Tables/Table.h>
#include <casacore/tables/Tables/ScaColDesc.h>
#include <casacore/tables/Tables/ArrColDesc.h>
#include <casacore/tables/DataMan/CompressFloat.h>
#include <casacore/tables/Tables/ArrayColumn.h>
#include <casacore/tables/Tables/ScalarColumn.h>
#include <casacore/casa/Arrays/Cube.h>
#include <casacore/casa/Arrays/IPosition.h>
#include <casacore/casa/Arrays/ArrayMath.h>
#include <casacore/casa/Arrays/ArrayLogical.h>
#include <casacore/casa/IO/ArrayIO.h>
#include <casacore/casa/Arrays/Slicer.h>
#include <casacore/casa/OS/Timer.h>
#include <casacore/tables/Tables/TableError.h>
#include <casacore/casa/iostream.h>
#include <casacore/casa/namespace.h>
// <summary> Test program for class CompressFloat </summary>
// This program tests the virtual column engine CompressFloat.
// The results are written to stdout. The script executing this program,
// compares the results with the reference output file.
// First build a description.
void writeData (Bool autoScale)
{
// First register the virtual column engine.
CompressFloat::registerClass();
// Build the table description.
TableDesc td("", "1", TableDesc::Scratch);
td.comment() = "A test of class TableDesc";
td.addColumn (ArrayColumnDesc<Short> ("target1"));
td.addColumn (ArrayColumnDesc<Float> ("source1"));
td.addColumn (ArrayColumnDesc<Float> ("source2","",
IPosition(3,2,3,4),
ColumnDesc::Direct));
td.addColumn (ScalarColumnDesc<Float> ("scale1"));
td.addColumn (ScalarColumnDesc<Float> ("offset1"));
// Now create a new table from the description.
SetupNewTable newtab("tCompressFloat_tmp.data", td, Table::New);
// Create the virtual column engine with the scale factors
// and bind the columns to them.
CompressFloat engine1("source1", "target1", "scale1", "offset1", autoScale);
newtab.bindColumn ("source1", engine1);
Table tab(newtab, 10);
// Fill the table via the virtual columns.
ArrayColumn<Float> source1 (tab, "source1");
ArrayColumn<Float> source2 (tab, "source2");
ScalarColumn<Float> scale1 (tab, "scale1");
ScalarColumn<Float> offset1 (tab,"offset1");
Cube<Float> arrf(IPosition(3,2,3,4));
uInt i;
i=2;
for (uInt i2=0; i2<4; i2++) {
for (uInt i1=0; i1<3; i1++) {
for (uInt i0=0; i0<2; i0++) {
arrf(i0,i1,i2) = i;
i += 6;
}
}
}
for (i=0; i<10; i++) {
if (!autoScale) {
scale1.put (i, 2.);
offset1.put (i, 4.);
}
if (i != 5) {
source1.put (i, arrf);
}
source2.put (i, arrf);
arrf += (Float)(6*arrf.nelements());
}
// Write the 5th row in Slices.
arrf -= (Float)(5*6*arrf.nelements());
source1.setShape (5, arrf.shape());
for (i=0; i<3; i++) {
source1.putSlice (5, Slicer(IPosition(3,0,i,0), IPosition(3,2,1,4)),
arrf(IPosition(3,0,i,0), IPosition(3,1,i,3)));
}
//# Do an erroneous thing.
//# However, this fails to run on Linux (so outcommented).
/// SetupNewTable newtab2("tCompressFloat_tmp.dat2", td, Table::Scratch);
/// newtab2.bindColumn ("source2", engine1);
/// try {
/// Table tab2(newtab2, 10); // bound to incorrect column
/// } catch (std::exception x) {
/// cout << x.what() << endl;
/// }
}
Bool checkData (Bool autoScale)
{
Bool ok = True;
// Read back the table.
Table tab("tCompressFloat_tmp.data");
ArrayColumn<Float> source1 (tab, "source1");
ArrayColumn<Float> source2 (tab, "source2");
ArrayColumn<Short> target1 (tab, "target1");
Cube<Short> arri1(IPosition(3,2,3,4));
Cube<Short> arrvali(IPosition(3,2,3,4));
Cube<Float> arrf1(IPosition(3,2,3,4));
Cube<Float> arrvalf(IPosition(3,2,3,4));
RefRows refrows(1,9,2);
Slicer slicer(IPosition(3,0,1,0), IPosition(3,2,2,2), IPosition(3,1,1,2));
Array<Float> arrCol1 (source1.getColumn());
Array<Float> arrColSlice1 (source1.getColumn(slicer));
Array<Float> arrCells1 (source1.getColumnCells(refrows));
Array<Float> arrCellsSlice1 (source1.getColumnCells(refrows,slicer));
Array<Float> arrCol2 (source2.getColumn());
Array<Float> arrColSlice2 (source2.getColumn(slicer));
Array<Float> arrCells2 (source2.getColumnCells(refrows));
Array<Float> arrCellsSlice2 (source2.getColumnCells(refrows,slicer));
Slicer slicercol(IPosition(4,0,1,0,0), IPosition(4,2,2,2,10),
IPosition(4,1,1,2,1));
Slicer slicercells(IPosition(4,0,0,0,1), IPosition(4,2,3,4,5),
IPosition(4,1,1,1,2));
Slicer slicercsl (IPosition(4,0,1,0,1), IPosition(4,2,2,2,5),
IPosition(4,1,1,2,2));
AlwaysAssertExit (allEQ(arrColSlice1, arrCol1(slicercol)));
AlwaysAssertExit (allEQ(arrCells1, arrCol1(slicercells)));
AlwaysAssertExit (allEQ(arrCellsSlice1, arrCol1(slicercsl)));
AlwaysAssertExit (allEQ(arrColSlice2, arrCol2(slicercol)));
AlwaysAssertExit (allEQ(arrCells2, arrCol2(slicercells)));
AlwaysAssertExit (allEQ(arrCellsSlice2, arrCol2(slicercsl)));
uInt i=0;
for (uInt i2=0; i2<4; i2++) {
for (uInt i1=0; i1<3; i1++) {
for (uInt i0=0; i0<2; i0++) {
arrf1(i0,i1,i2) = 2 + 6*i;
arri1(i0,i1,i2) = 3*i - 1;
i++;
}
}
}
ArrayIterator<Float> iter1(arrCol1, 3);
ArrayIterator<Float> iter2(arrCol2, 3);
for (i=0; i<10; i++) {
cout << "get row " << i << endl;
source1.get (i, arrvalf);
if (!allNear (arrvalf, arrf1, 1e-4)) {
cout << "error in source1 in row " << i << endl;
cout << "Read: " << arrvalf << endl;
cout << "Expected: " << arrf1 << endl;
ok = False;
}
AlwaysAssertExit (allEQ(arrvalf, iter1.array()));
AlwaysAssertExit (allEQ(arrvalf(slicer), source1.getSlice(i, slicer)));
if (!autoScale) {
target1.get (i, arrvali);
if (!allEQ (arrvali, arri1)) {
cout << "error in target1 in row " << i << endl;
cout << "Read: " << arrvali << endl;
cout << "Expected: " << arri1 << endl;
ok = False;
}
}
source2.get (i, arrvalf);
if (!allEQ (arrvalf, arrf1)) {
cout << "error in source2 in row " << i << endl;
cout << "Read: " << arrvalf << endl;
cout << "Expected: " << arrf1 << endl;
ok = False;
}
AlwaysAssertExit (allEQ(arrvalf, iter2.array()));
AlwaysAssertExit (allEQ(arrvalf(slicer), source2.getSlice(i, slicer)));
arrf1 += (Float)(6*arrf1.nelements());
arri1 += (Short)(3*arri1.nelements());
iter1.next();
iter2.next();
}
return ok;
}
void testSpeed()
{
{
// Build the table description.
TableDesc td("", "1", TableDesc::Scratch);
td.comment() = "A test of class TableDesc";
td.addColumn (ArrayColumnDesc<Short> ("target1",
IPosition(3,2,3,4),
ColumnDesc::Direct));
td.addColumn (ArrayColumnDesc<Float> ("source1",
IPosition(3,2,3,4),
ColumnDesc::Direct));
td.addColumn (ArrayColumnDesc<Float> ("source2","",
IPosition(3,2,3,4),
ColumnDesc::Direct));
td.addColumn (ArrayColumnDesc<Short> ("target3",
IPosition(3,2,3,4),
ColumnDesc::Direct));
td.addColumn (ArrayColumnDesc<Float> ("source3",
IPosition(3,2,3,4),
ColumnDesc::Direct));
td.addColumn (ScalarColumnDesc<Float> ("scale1"));
td.addColumn (ScalarColumnDesc<Float> ("offset1"));
// Now create a new table from the description.
SetupNewTable newtab("tCompressFloat_tmp.data", td, Table::New);
// Create the virtual column engine with the scale factors
// and bind the columns to them.
CompressFloat engine1("source1", "target1", "scale1", "offset1", False);
CompressFloat engine3("source3", "target3", 2.0, 4.0);
newtab.bindColumn ("source1", engine1);
newtab.bindColumn ("source3", engine3);
Table tab(newtab, 10000);
// Fill the table via the virtual columns.
ArrayColumn<Float> source1 (tab, "source1");
ArrayColumn<Float> source2 (tab, "source2");
ScalarColumn<Float> scale1 (tab,"scale1");
ScalarColumn<Float> offset1 (tab,"offset1");
Cube<Float> arrf(IPosition(3,2,3,4));
uInt i;
i=2;
for (uInt i2=0; i2<4; i2++) {
for (uInt i1=0; i1<3; i1++) {
for (uInt i0=0; i0<2; i0++) {
arrf(i0,i1,i2) = i;
i += 6;
}
}
}
for (i=0; i<10; i++) {
scale1.put (i, 2.);
offset1.put (i, 4.);
source1.put (i, arrf);
source2.put (i, arrf);
arrf += (Float)(6*arrf.nelements());
}
}
{
{
// Time reading back column source1.
Table tab("tCompressFloat_tmp.data");
ArrayColumn<Float> source (tab, "source1");
Cube<Float> arrvalf(IPosition(3,2,3,4));
Timer timer;
uInt nrow = tab.nrow();
for (uInt i=0; i<nrow; i++) {
source.get (i, arrvalf);
}
timer.show();
}
{
// Time reading back column source2.
Table tab("tCompressFloat_tmp.data");
ArrayColumn<Float> source (tab, "source2");
Cube<Float> arrvalf(IPosition(3,2,3,4));
Timer timer;
uInt nrow = tab.nrow();
for (uInt i=0; i<nrow; i++) {
source.get (i, arrvalf);
}
timer.show();
}
{
// Time reading back column source3.
Table tab("tCompressFloat_tmp.data");
ArrayColumn<Float> source (tab, "source3");
Cube<Float> arrvalf(IPosition(3,2,3,4));
Timer timer;
uInt nrow = tab.nrow();
for (uInt i=0; i<nrow; i++) {
source.get (i, arrvalf);
}
timer.show();
}
{
// Time reading back column source1.
Table tab("tCompressFloat_tmp.data");
ArrayColumn<Float> source (tab, "source1");
Timer timer;
source.getColumn();
timer.show();
}
{
// Time reading back column source2.
Table tab("tCompressFloat_tmp.data");
ArrayColumn<Float> source (tab, "source2");
Timer timer;
source.getColumn();
timer.show();
}
{
// Time reading back column source3.
Table tab("tCompressFloat_tmp.data");
ArrayColumn<Float> source (tab, "source3");
Timer timer;
source.getColumn();
timer.show();
}
}
}
int main ()
{
Int sts=0;
try {
writeData (False);
if (! checkData (False)) sts=1;
writeData (True);
if (! checkData (True)) sts=1;
testSpeed();
} catch (std::exception& x) {
cout << "Caught an exception: " << x.what() << endl;
return 1;
}
return sts;
}
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