Unit System

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Selecting "{{l|Toolbox|Toolbox]] > File > {{l|Setup Dialog|Setup]] > Misc." lets you set the unit system, with choices:

• units (u)
• pixels (px)
• points (pt)
• inches (in)
• metres (m)
• centimeters (cm)
• millimeters (mm)

The conversions are:

• 1cm = 0.01m = 10mm
• 1in = 2.54cm
• 1in = 72pt
• 1u = (image width in pixels)/(image area width)px
• 1in = (res)px

The default document is 480 x 270 pixels and has an image area from (-4,2.25) to (4,-2.25), giving an image area of 8 x 4.5 units, so by default 1 unit is 480 / 8 = 60 pixels.

At an XRes = YRes = 36, 1in = 72pt = 36px = 0.6u.

At an XRes = YRes = 72, 1in = 72pt = 72px = 1.2u.

Another example, linking all 7 units:

72 DPI: (1m = 100cm = 1000mm = 39.37in = 2834.65pt) = (2834.65px = 47.24u)
36 DPI: (1m = 100cm = 1000mm = 39.37in = 2834.65pt) = (1417.32px = 23.62u)

Language:

English • čeština