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wxArt2D
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store and convert number to number with unit and visa versa. e.g. 1.23e-6 => 1.23 * 1e-6 More...
#include <artglob.h>
Public Member Functions | |
| a2dDoMu (double number, double multi=1, bool normalize=true) | |
| constructor on number and multiplier 1.1 and 1e-6 | |
| a2dDoMu (double number, const wxString &multi) | |
| constructor on number in meters and recalculate for multiplier as string | |
| a2dDoMu (const wxString &number, const wxString &multi) | |
| constructor on number string and multiplier string "1.1" "um" | |
| a2dDoMu (const wxString &numberMulti) | |
| constructor on string containing number and multiplier "1.1 um" | |
| bool | Eval (const wxString ¶m) |
| compose a unit based a string "1.1um" | |
| double | GetValue () const |
| get value in meters | |
| double | GetNumber () const |
| get the number 1.1 um -> 1.1 | |
| double | GetMultiplier () const |
| get the number 1.1 um -> 1e-6 | |
| wxString | GetValueString () const |
| get the number 1.1 um -> "1.1 um" | |
| wxString | GetMultiplierString () const |
| get the number 1.1 um -> "um" | |
| wxString | GetNumberString () const |
| get the number 1.1 um -> "1.1" | |
| a2dDoMu & | operator= (const a2dDoMu &) |
| copy | |
| a2dDoMu & | operator= (const wxChar *) |
| as Eval | |
| operator double () const | |
| convert to double | |
| a2dDoMu & | operator= (double) |
| double becomes the number | |
| int | operator== (const a2dDoMu &) const |
| int | operator!= (const a2dDoMu &) const |
Static Public Member Functions | |
| static wxString | GetMultiplierString (double multi) |
| calculate from m_multi a string like "1e-6" => "um" | |
| static bool | GetMultiplierFromString (const wxString &mul, double &multi) |
| calculate how to get to meters from a multiplier string e.g. um => 1e-6 | |
| static void | SetAccuracy (int accur) |
| when converting a number to a string this accuracy will be used | |
Protected Attributes | |
| double | m_multi |
| multiplier e.g. "um" will be 1e-6 | |
| double | m_number |
| non multiplied number | |
Static Protected Attributes | |
| static int | m_accuracy = 3 |
| how much fractional digits, when conversion to string | |
store and convert number to number with unit and visa versa. e.g. 1.23e-6 => 1.23 * 1e-6
This makes it easy to recover the unit as a string if needed. Als one can normalize the multiplier part to something that closest to a string multiplier.
Used often to convert to and from user units. If the default unit used by the user is in MicroMeters (um), numbers stored as doubles, need to be converted back and forth to this unit. The full number is stored as a number + multiplier part. The multiplier is always stored in metric. So if inch, it will be 0.0254, and mil will be 0.00254