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LibreLogo extension showing Turtle graphics
|Original author(s)||László Németh|
|Initial release||27 June 2012|
Same as LibreOffice version
|Available in||Same as LibreOffice version|
|Type||Software extension / part of an application|
|License||GPL, LGPL v2.1 and MPL v1.1|
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.
Logo toolbar and interpreter was programmed by László Németh, and help with integration was provided by András Tímár. It was released as an extension to LibreOffice before code was merged into LibreOffice 18.104.22.168 main code in 2014.
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).
It's a toolbar in
Touching 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 example
Here is a "Hello, World!" example.
circle 10cm fillcolor 'blue' pencolor 'red' pensize 2 circle 5cm forward 200 right 89 circle 5 repeat 88 [ forward 200 right 89 ] fill repeat 9 [ label 'Hello, World!' right 20 ] repeat 100 [ penup position any pendown pensize random 10 fillcolor any square 20 + random 100 ]
|Wikimedia Commons has media related to LibreLogo.|