A simple library for converting a value from one unit to another.
Simply copy the "DDUnitConverter" subfolder into your project, and #import "DDUnitConversion.h".
You can do the actual conversions like so:
NSNumber * value = [[DDUnitConverter velocityUnitConverter] convertNumber:[NSNumber numberWithInt:100]
fromUnit:DDVelocityUnitMilesPerHour
toUnit:DDVelocityUnitFurlongsPerMicrofortnight];
DDUnitConverter does all its transformations using NSDecimalNumber, so your precision is limited to anything NSDecimalNumber can handle.
DDUnitConverter has converters for the following categories:
- Acceleration
- Angle
- Area
- Bytes
- Currency (pulls rates from the International Monetary Fund)
- Current
- Energy
- Force
- Illumination
- Inductance
- Length
- Magnitude
- Mass
- Power
- Pressure
- Radiation
- Temperature
- Time
- Torque
- Velocity
- Volume
If you want more categories, more units, or have found a bug with the conversions, please file an issue.
- Requires Mac OS X 10.6+
- Requires iOS 4.0+
Copyright (c) 2010 Dave DeLong
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.