Unit.cpp File Reference

Description

Implements class Unit.

Homepage:\n http://www.bornagainproject.org

License:\n GNU General Public License v3 or higher (see COPYING)

Copyright

Forschungszentrum Jülich GmbH 2021

Authors

Scientific Computing Group at MLZ (see CITATION, AUTHORS)

Definition in file Unit.cpp.

Include dependency graph for Unit.cpp:

Go to the source code of this file.

Functions
double	convert (double d, Unit from, Unit to)
	Convert the given value d from unit "from" to unit "to" Throws an exception if no conversion possible. More...
QString	unitAsString (const Unit &unit)
	Returns the string for the given unit. More...

Function Documentation

convert()

double convert	(	double	d,
		Unit	from,
		Unit	to
	)

Convert the given value d from unit "from" to unit "to" Throws an exception if no conversion possible.

Definition at line 20 of file Unit.cpp.

{
    if (from == to)
        return d;
 
    if (from == Unit::angstrom && to == Unit::nanometer)
        return d / 10.0;
 
    if (from == Unit::nanometer && to == Unit::angstrom)
        return d * 10.0;
 
    if (from == Unit::angstrom2 && to == Unit::nanometer2)
        return d / 100.0;
 
    if (from == Unit::nanometer2 && to == Unit::angstrom2)
        return d * 100.0;
 
    if (from == Unit::angstromMinus2 && to == Unit::nanometerMinus2)
        return d * 100.0;
 
    if (from == Unit::nanometerMinus2 && to == Unit::angstromMinus2)
        return d / 100.0;
 
    if (from == Unit::radiant && to == Unit::degree)
        return Units::rad2deg(d);
 
    if (from == Unit::degree && to == Unit::radiant)
        return Units::deg2rad(d);
 
    if (from == Unit::other || to == Unit::other) {
        ASSERT(false); // no conversion possible
        return d;
    }
 
    ASSERT(false); // no conversion implemented
    return d;
}

References angstrom, angstrom2, angstromMinus2, degree, nanometer, nanometer2, nanometerMinus2, other, and radiant.

Referenced by DoubleSpinBox::toBaseValue(), and DoubleSpinBox::toDisplayValue().

unitAsString()

QString unitAsString

(

const Unit &

unit

)

Returns the string for the given unit.

Definition at line 58 of file Unit.cpp.

{
    switch (unit) {
    case Unit::unitless:
        return "";
    case Unit::nanometer:
        return "nm";
    case Unit::nanometer2:
        return u8"nm\u00B2";
    case Unit::nanometerMinus2:
        return u8"1/nm\u00B2";
    case Unit::angstrom:
        return u8"\u00c5";
    case Unit::angstrom2:
        return u8"\u00c5\u00B2";
    case Unit::angstromMinus2:
        return u8"1/\u00c5\u00B2";
    case Unit::degree:
        return "°";
    case Unit::radiant:
        return "rad";
    case Unit::other:
        ASSERT(false); // this function should not be called for Unit::other
        return "";
    default:
        ASSERT(false); // no string implemented
        return "";
    }
}

References angstrom, angstrom2, angstromMinus2, degree, nanometer, nanometer2, nanometerMinus2, other, radiant, and unitless.

Referenced by ParameterTreeBuilder::addDetector(), and DoubleSpinBox::displayUnitAsString().