Twip
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This article includes a list of general references, but it lacks sufficient corresponding inline citations. (January 2012) |
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| twip | |
|---|---|
| Unit system | Typographic units |
| Unit of | Length |
| Conversions | |
| 1 twip in ... | ... is equal to ... |
| Typographic units | Page Template:Sfrac/styles.css has no content.1/20 points |
| Imperial/US units | Page Template:Sfrac/styles.css has no content.1/1440 in |
| Metric (SI) units | 17.64 μm |
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A twip (abbreviating "twentieth of a point" or "twentieth of an inch point"[1]) is a typographical measurement, defined as Page Template:Fraction/styles.css has no content.1⁄20 of a typographical point. One twip is Page Template:Fraction/styles.css has no content.1⁄1440 inch, or 17.64 μm.[2]
In computing
Twips are screen-independent units to ensure that the proportion of screen elements are the same on all display systems. A twip is defined as being Page Template:Fraction/styles.css has no content.1⁄1440 of an inch (approximately 17.64 μm).
A pixel is a screen-dependent unit, standing for 'picture element'. A pixel is a dot that represents the smallest graphical measurement on a screen. Twips are the default unit of measurement in Visual Basic (version 6 and earlier, prior to VB.NET). Converting between twips and screen pixels is achieved using the TwipsPerPixelX and TwipsPerPixelY properties[3] or the ScaleX and ScaleY methods.[4]
Twips can be used with Symbian OS bitmap images for automatic scaling from bitmap pixels to device pixels.[5] They are also used in Rich Text Format from Microsoft for platform-independent exchange and they are the base length unit in OpenOffice.org and its fork LibreOffice.
Flash internally specifies most sizes in units it calls twips, but which are really Page Template:Fraction/styles.css has no content.1⁄20 of a logical pixel,[6] which is Page Template:Fraction/styles.css has no content.3⁄4 of an actual twip.[7]
See also
- Himetric
- Thousandth of an inch – a Page Template:Fraction/styles.css has no content.1⁄1000 of an inch, commonly called a thou /ˈθaʊ/ (used for both singular and plural) or, particularly in North America, a mil (plural mils).
References
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- ^ The Free On-line Dictionary of Computing: http://foldoc.org/twip
- ^ Page Module:Citation/CS1/styles.css has no content."Word 2007: Rich Text Format (RTF) Specification, version 1.9.1". Microsoft Corporation. 19 March 2008. p. 8. Retrieved 12 March 2017.
- ^ Page Module:Citation/CS1/styles.css has no content."TwipsPerPixelX, TwipsPerPixelY Properties". docs.microsoft.com. 23 August 2006.
- ^ Page Module:Citation/CS1/styles.css has no content."ScaleX, ScaleY Methods". docs.microsoft.com. 23 August 2006.
- ^ Page Module:Citation/CS1/styles.css has no content.Dueder, Janelle (December 20, 2020). "Blitting and bitmaps - Symbian OS C++". 25 Years of Programming.
- ^ Page Module:Citation/CS1/styles.css has no content."SWF FILE FORMAT SPECIFICATION" (PDF). Archived from the original (PDF) on 2016-11-20.
- ^ Flash logical pixels are the same as HTML logical pixels, of which there are 96 to an inch, rather than 72
- Page Module:Citation/CS1/styles.css has no content.Sparke, Gerard; Etherington, Stephen (2000). Visual Basic Programmers' Workbook. Pearson Education Australia. ISBN 978-1-74009-445-0.
- MSDN Library — com.ms.wfc.ui.CoordinateSystem.TWIP
- Free On-Line Dictionary of Computing — twip
- Foundation, ActionScript 3.0 Animation, Making Things Move! by Keith Peters Template:ISBN (pbk)
- Converting between twips and pixels - Ruby code
