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DiamCalc allows choose the most convenient representation form or measurement units for some parameters.
Diamond Calculator presents options of parameters' units of measurement,
when applicable (e.g. linear size can be expressed in millimeters
or as a percentage of the diameter). Another way to customize DiamCalc
is to select one of several similar parameters. See examples below
for more details.
1. Selecting units of measurement.
2. Dual parameters.
1. Selecting units of measurement.
By default, size parameters are presented as a
ratio of the corresponding value to the diameter. In some situations,
other units, e.g. millimeters, can be more useful. The user can
choose measurement units for each particular parameter. To do this,
point the mouse cursor to the parameter value and click right mouse
button. A menu appears, allowing to see available units and select
one of them:
The menu above was produced by pointing the mouse to the value
of Girdle thickness parameter and pressing the right mouse button.
A check mark shows that the current unit of measurement is percents
of the diameter. If millimeters is selected from the menu, a value
will be recalculated and shown in a new format.
When values of parameters are entered from the keyboard, units
of measurement can be specified along with values. When a string
like "1.1 %" or "0.02 mm" is typed, DiamCalc
recognizes what is the value and what is the unit of measurement
and change them if needed. If only a number is typed, DiamCalc applies
the current unit of measurement.
2. Dual parameters.
It is possible to use different presentations for
some parameters. For instance, a slightly oval shape of the girdle
can be described by two diameters, minimum and maximum. Alternatively,
it can be specified by maximum diameter and deviation (brilliant
cut) or ratio of maximum and minimum diameters (fancy cuts).
To choose a presentation option of such a parameter, point the
mouse cursor to the parameter's name and click right mouse button.
A menu appears, allowing to select a presentation option:
The picture above was taken when the mouse cursor was over "Girdle
ratio" field and the right mouse button was pressed. As you
see, a menu allows to select between showing maximum and minimum
diameters or just one diameter and ratio of diameters.
There are other dual parameters:
Girdle square deviation <-> Alternative diameter (measured
at direction 45°);
Star facet length <-> Table picture square-likeness.
There is also a similar way to choose mass precision: 2 digits after
decimal point <-> 4 digits.
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