| 词条 | LibreLogo |
| 释义 |
}}{{Infobox software | logo = | screenshot = LibreLogo Turtle graphics.png | caption = LibreLogo extension showing Turtle graphics | author = László Németh András Tímár | developer = | released = {{Start date and age|2012|06|27|df=yes}}[1] | latest release version = Same as LibreOffice version | latest release date = | programming_language = Python-PyUNO | operating_system = | platform = | language = Same as LibreOffice version | genre = Software extension / part of an application | license = GPL, LGPL v2.1 and MPL v1.1 | website = {{URL|librelogo.org}} }} LibreLogo is a Logo-like, Python programming environment that uses interactive turtle vector graphics. Its final output is a vector graphics rendition within the LibreOffice suite; and it can be used for education and desktop publishing. HistoryLogo toolbar and interpreter was programmed by László Németh, and help with integration was provided by András Tímár.[2] It was released as an extension to LibreOffice before code was merged into LibreOffice 4.2.3.3 main code in 2014.[3] The lightweight implementation (1400 lines in Python-PyUNO) uses the embedded Python to give a simplified programming interface to the vector graphics of LibreOffice for graphic design and education (including teaching of word processing).[2] InstallationLibreLogo is embedded in every version of LibreOffice later than 4.2.3.3 (released in 2014). It can also be installed as an extension for earlier versions.[4]It's a toolbar in UseTouching the up-arrow on the Logo toolbar, activates the turtle, then the source code is typed directly onto the same page. The graphic is in SVG format and can be copy & pasted into other documents. The syntax of LibreLogo is similar to UCBLogo. It supports the ¨word syntax for strings as well as the 'word' notation. Importantly LibreLogo supports recursion. Commands can entered into the toolbar, or compiled and run from the Writer page. Hello world exampleHere is a "Hello, World!" example. circle 10cmfillcolor 'blue' pencolor 'red' pensize 2 circle 5cmforward 200 right 89 circle 5repeat 88 [ forward 200 right 89 ] fillrepeat 9 [ label 'Hello, World!' right 20 ]repeat 100 [ penup position any pendown pensize random 10 fillcolor any square 20 + random 100 ] GallerySee also{{Portal|Free and open-source software|Computer programming}}References
1. ^{{cite web|title=LibreLogo 0.1 (Jun 27, 2012)|url=http://extensions.libreoffice.org/extensions/librelogo/0.1}} 2. ^1 {{cite web|title=4.0 New Features and Fixes|url=https://www.libreoffice.org/download/4-0-new-features-and-fixes/|publisher=The Document Foundation}} 3. ^{{cite web|title=LibreLogo|url=http://extensions.libreoffice.org/extensions/librelogo}} 4. ^{{cite web|url=http://www.libreoffice.org/download/libreoffice-fresh/|title=LibreOffice downloads page|date=1 May 2014|accessdate=1 May 2014}} 5. ^{{cite web|url=http://librelogo.org/quick-start/|title=Quick Start|last=Németh|first=László|date=30 April 2014|accessdate=1 May 2014}}
External links{{Commons category|LibreLogo}}
2 : Free software|Vector graphics editors |
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