OilfieldToolsNet/ResInsight
4
0
Fork 0
mirror of https://github.com/OPM/ResInsight.git synced 2025-02-25 18:55:39 -06:00
Code Issues Packages Projects Releases Wiki Activity

#7116 Add extrapolation options for linear interpolation tool.

Browse Source
This commit is contained in:
Kristian Bendiksen
2021-03-05 14:04:25 +01:00
committed by Magne Sjaastad
parent c1f7f0f66f
commit f3fe51ef65
3 changed files with 78 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
ApplicationLibCode/Application/Tools/RiaInterpolationTools.cpp
View File

@@ -40,7 +40,10 @@ bool almostEqual( double a, double b, double maxRelDiff = std::numeric_limits<do
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
double RiaInterpolationTools::linear( const std::vector<double>& x, const std::vector<double>& y, double value )
double RiaInterpolationTools::linear( const std::vector<double>& x,
const std::vector<double>& y,
double value,
ExtrapolationMode extrapolationMode )
{
assert( x.size() == y.size() );
@@ -70,6 +73,17 @@ double RiaInterpolationTools::linear( const std::vector<double>& x, const std::v
return y[0];
else if ( almostEqual( value, x[x.size() - 1] ) )
return y[x.size() - 1];
if ( extrapolationMode == ExtrapolationMode::CLOSEST )
{
return extrapolateClosestValue( x, y, value );
}
else if ( extrapolationMode == ExtrapolationMode::TREND )
{
return extrapolate( x, y, value );
}
assert( extrapolationMode == ExtrapolationMode::NONE );
return std::numeric_limits<double>::infinity();
}
@@ -94,6 +108,17 @@ double RiaInterpolationTools::extrapolate( const std::vector<double>& x, const s
return y[0] + ( value - x[0] ) / ( x[1] - x[0] ) * ( y[1] - y[0] );
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
double RiaInterpolationTools::extrapolateClosestValue( const std::vector<double>& x, const std::vector<double>& y, double value )
{
if ( value <= x[0] )
return y[0];
else
return y[x.size() - 1];
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------