static bool longValidator(const QString str, double & val)
{
QStringList myList;
QRegExp exp1("^[oOwWeElL][ ]\\d\\d?\\d?[ ]?\\d\\d?[ ]?\\d?\\d?\\.?[0-9]?" );
QRegExp exp2("^[oOwWeElL][;]\\d\\d?\\d?[;]?\\d\\d?[;]?\\d?\\d?\\.?[0-9]?" );
QRegExp exp3("^[oOwWeElL][:]\\d\\d?\\d?[:]?\\d\\d?[:]?\\d?\\d?\\.?[0-9]?" );
QRegExp exp4("^[+-]?\\d\\d?\\d?\\.?[0-9]*" );
double grauDec;
if ( exp1.exactMatch( str ) )
{
myList = str.split(" ");
}
else if ( exp2.exactMatch( str ) )
{
myList = str.split(";");
}
else if ( exp3.exactMatch( str ) )
{
myList = str.split(":");
}
else if ( exp4.exactMatch( str ) )
{
grauDec = str.toDouble();
if ((grauDec >= -180.0 && grauDec <=180.0))
{
val = grauDec * TeCDR;
return true;
}
else
return false;
}
else
return false;
int nelementos = myList.count();
short graus, minutos = 0;
float segundos = 0.0;
graus = myList[1].toShort();
if (nelementos > 2)
minutos = myList[2].toShort();
if (nelementos > 3)
segundos = myList[3].toFloat();
if (TeLongDMS2DD(myList[0].at(0).toAscii(),graus, minutos, segundos, grauDec))
{
val = grauDec * TeCDR;
return true;
}
else
return false;
}
void eval_geometry_calc()
{
QgsPolyline polyline, polygon_ring;
polyline << QgsPoint( 0, 0 ) << QgsPoint( 10, 0 );
polygon_ring << QgsPoint( 2, 1 ) << QgsPoint( 10, 1 ) << QgsPoint( 10, 6 ) << QgsPoint( 2, 6 ) << QgsPoint( 2, 1 );
QgsPolygon polygon;
polygon << polygon_ring;
QgsFeature fPolygon, fPolyline;
fPolyline.setGeometry( QgsGeometry::fromPolyline( polyline ) );
fPolygon.setGeometry( QgsGeometry::fromPolygon( polygon ) );
QgsExpression exp1( "$area" );
QVariant vArea = exp1.evaluate( &fPolygon );
QCOMPARE( vArea.toDouble(), 40. );
QgsExpression exp2( "$length" );
QVariant vLength = exp2.evaluate( &fPolyline );
QCOMPARE( vLength.toDouble(), 10. );
QgsExpression exp3( "$perimeter" );
QVariant vPerimeter = exp3.evaluate( &fPolygon );
QCOMPARE( vPerimeter.toDouble(), 26. );
QgsExpression exp4( "bounds_width($geometry)" );
QVariant vBoundsWidth = exp4.evaluate( &fPolygon );
QCOMPARE( vBoundsWidth.toDouble(), 8.0 );
QgsExpression exp5( "bounds_height($geometry)" );
QVariant vBoundsHeight = exp5.evaluate( &fPolygon );
QCOMPARE( vBoundsHeight.toDouble(), 5.0 );
QgsExpression exp6( "xmin($geometry)" );
QVariant vXMin = exp6.evaluate( &fPolygon );
QCOMPARE( vXMin.toDouble(), 2.0 );
QgsExpression exp7( "xmax($geometry)" );
QVariant vXMax = exp7.evaluate( &fPolygon );
QCOMPARE( vXMax.toDouble(), 10.0 );
QgsExpression exp8( "ymin($geometry)" );
QVariant vYMin = exp8.evaluate( &fPolygon );
QCOMPARE( vYMin.toDouble(), 1.0 );
QgsExpression exp9( "ymax($geometry)" );
QVariant vYMax = exp9.evaluate( &fPolygon );
QCOMPARE( vYMax.toDouble(), 6.0 );
}
