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Created page with '<noinclude>{{GoogleTrans-en}}{{TOCright}}</noinclude>Category:Page Template = Turtle Art = == Introduction == Turtle Art is an activity with a Logo-inspired graphical "turtl…'
<noinclude>{{GoogleTrans-en}}{{TOCright}}</noinclude>[[Category:Page Template]]
= Turtle Art =
== Introduction ==
Turtle Art is an activity with a Logo-inspired graphical "turtle" that draws colorful art based on snap-together visual programming elements.
Turtle Art is intended to be a stepping stone to the Logo programming language, but there are many restrictions compared to Logo. (Only numeric global variables and stack items are available, no lists or other data-structures. The conditionals and some of the functions only take constants or variables, not expressions. Limited screen real-estate makes building large programs unfeasible.) However, you can export your Turtle Art creations to Berkley Logo. The sensor-enabled version of Turtle Art also has a facility for sensor input, so, for example, you can move the Turtle based upon sound volume or pitch.
Turtle Art is in the same tradition as Etoys, Scratch, Lego Mindstorms™, and Lego Microworlds™.
Turtle Art is used extensively in Sugar deployments and numerous materials for support in the classroom have been developed. Of course, since Turtle Art is a Logo derivative, many of the classic Logo exercises are well suited for engaging students in Turtle Art. For example, Tony Forster has been [http://tonyforster.blogspot.com blogging about a wide variety of Turtle Art activities]. Gonzalo Odiard has written a [https://sites.google.com/site/godiard/TurtleArt.ppt?attredirects=0&d=1 short introduction to Turtle Art].
More Info:
* Turtle Art Sugar Activity [[Activities/TurtleArt-0.88|homepage]]
* Turtle Art gallery (See [http://www.turtleart.org])
* Turtle Art Manual (See [http://en.flossmanuals.net/turtleart])
* Turtle Art teacher guides from Uruguay (See [http://www.reducativa.com/wiki/index.php?title=Proyecto_OLPC_-_Plan_Ceibal#Turtle_Art])
* Turtle Art teacher guides from Peru (See [http://www.perueduca.edu.pe/olpc/OLPC_fichasfasc.html])
* Turtle Art student guide (See [http://wiki.laptop.org/images/e/e3/Turtle_Art.pdf])
* Tony Forster blog on Turtle Art (See [http://tonyforster.blogspot.com/])
* Bill Kerr blog on Turtle Art (See [http://xo-whs2009.blogspot.com/])
* Barry Newell worksheet (See [http://1.bp.blogspot.com/_r-MQun1PKUg/SpuoxMM_JmI/AAAAAAAABEA/DIEF5r3OYe8/s1600-h/BNcropped.jpg])
== What is new for users ==
The most visible change is the incorporation of the new scalable block design.
<div class="visualClear"></div>
Minor bugs and feature changes include:
83
* added new user-interface features
o support for multiple turtles
o expandable blocks
o collapsible stacks
o runtime block highlighting
o error highlighting
o trash palette (with restore)
o palette better integrated into Sugar toolbar
o variable-length string blocks
o editable string blocks
o paste text from Sugar clipboard to string blocks
o new prefix boolean logic
o showblock to compliment hideblock
o fullscreen block
o Cartesian and polor coordinate blocks
o color blocks
o editible macros (used for presentation blocks)
o labels on coordinate-grid overlays
o more complete support in non-Sugar environments
o new (and improved) sample code
o Logo code for project added to View Source
o save SVG block lets you generate SVG with Turtle Art
o improved export-to-HTML logic
o new translations
* completed a major refactoring of the code
o 90% smaller download bundle-size
o faster first-time launch
o greatly simplified i18n maintenance
o easier to extend with new blocks and palettes
82
* minor updates to Spanish translations
81
* fixed keyboard input bug introduced in v79
80
* new Finnish translations
79
* backspace enabled when entering numbers
* arbitrarily long numeric strings enabled
* fixed Python error in sample code
* clean up of en artwork
* fix bug in load_image
* detecting XO 1.5 hardware for font-scaling problem
* keyboard and gamepad navigation
* expanded hover help
* better logic for block selection used by copy/paste
78
* new artwork for pen palette
* color blocks
77
* hide status block on start up
* save reference to Python code loaded from the Journal
76
* fixed import error in project
* fixed bullets in exporthtml
* added proper scaling for coordinate blocks
* moved status layer forward
75
* Cartesian coordinates overlay
* polar coordinates overlay
* coordinate display on View Toolbar
* Option to rescale coordinate system to 100x100 on View Toolbar
* Reordered the palettes (moved misc. down)
74
* load start block for new projects
* fixed bug with reloading descriptions from Journal
* added hover help to command line version
* initiate the import Python chooser when Python block is clicked
* saving pastable code to html export
* fixed some problems in export to HTML code
== What is new for developers ==
Raúl Gutiérrez Segalés and I completed a major refactoring for 0.88 which includes a block factory--a more object-oriented approach that should facilitate a more decentralized development approach.
== Internationalization (i18n) and Localization (l10n) ==
== Compatibility ==
Compatible with all versions of Sugar although some functionality is lost with pre-0.82 versions and sharing is incompatible with previous versions.
== Detailed changes ==
As of '''Version 83'''
==Open tickets==
* {{Bug|472}} Remove unexpected 'save/load' tab from toolbar
* {{Bug|489}} Turtle Art text entry should use Entry widget
* {{Bug|673}} Logo program should be displayable in the document View Source
* {{Bug|1057}} Turtle Art feature to add support for "pages"
* {{Bug|1188}} Load samples from turtleart.org
* {{Bug|1203}} Rebase Turtle Art graphics on Cairo
* {{Bug|155}} Turtle Art with Sensors has different requirements for non-XO hardware
* {{Bug|491}} Turtle Art sharing needs new logic
* {{Bug|548}} Turtle Art: read and write to text file
* {{Bug|552}} Turtle art: reinstate sensor input
== Credits ==
* Walter Bender and Raúl Gutiérrez Segalés (with help from Simon Schampijer)
* Especially helpful community feedback from Tony Forster, Ed Cherlin, and Bill Kerr
* Brian Silverman is the first author of Turtle Art
= Turtle Art =
== Introduction ==
Turtle Art is an activity with a Logo-inspired graphical "turtle" that draws colorful art based on snap-together visual programming elements.
Turtle Art is intended to be a stepping stone to the Logo programming language, but there are many restrictions compared to Logo. (Only numeric global variables and stack items are available, no lists or other data-structures. The conditionals and some of the functions only take constants or variables, not expressions. Limited screen real-estate makes building large programs unfeasible.) However, you can export your Turtle Art creations to Berkley Logo. The sensor-enabled version of Turtle Art also has a facility for sensor input, so, for example, you can move the Turtle based upon sound volume or pitch.
Turtle Art is in the same tradition as Etoys, Scratch, Lego Mindstorms™, and Lego Microworlds™.
Turtle Art is used extensively in Sugar deployments and numerous materials for support in the classroom have been developed. Of course, since Turtle Art is a Logo derivative, many of the classic Logo exercises are well suited for engaging students in Turtle Art. For example, Tony Forster has been [http://tonyforster.blogspot.com blogging about a wide variety of Turtle Art activities]. Gonzalo Odiard has written a [https://sites.google.com/site/godiard/TurtleArt.ppt?attredirects=0&d=1 short introduction to Turtle Art].
More Info:
* Turtle Art Sugar Activity [[Activities/TurtleArt-0.88|homepage]]
* Turtle Art gallery (See [http://www.turtleart.org])
* Turtle Art Manual (See [http://en.flossmanuals.net/turtleart])
* Turtle Art teacher guides from Uruguay (See [http://www.reducativa.com/wiki/index.php?title=Proyecto_OLPC_-_Plan_Ceibal#Turtle_Art])
* Turtle Art teacher guides from Peru (See [http://www.perueduca.edu.pe/olpc/OLPC_fichasfasc.html])
* Turtle Art student guide (See [http://wiki.laptop.org/images/e/e3/Turtle_Art.pdf])
* Tony Forster blog on Turtle Art (See [http://tonyforster.blogspot.com/])
* Bill Kerr blog on Turtle Art (See [http://xo-whs2009.blogspot.com/])
* Barry Newell worksheet (See [http://1.bp.blogspot.com/_r-MQun1PKUg/SpuoxMM_JmI/AAAAAAAABEA/DIEF5r3OYe8/s1600-h/BNcropped.jpg])
== What is new for users ==
The most visible change is the incorporation of the new scalable block design.
<div class="visualClear"></div>
Minor bugs and feature changes include:
83
* added new user-interface features
o support for multiple turtles
o expandable blocks
o collapsible stacks
o runtime block highlighting
o error highlighting
o trash palette (with restore)
o palette better integrated into Sugar toolbar
o variable-length string blocks
o editable string blocks
o paste text from Sugar clipboard to string blocks
o new prefix boolean logic
o showblock to compliment hideblock
o fullscreen block
o Cartesian and polor coordinate blocks
o color blocks
o editible macros (used for presentation blocks)
o labels on coordinate-grid overlays
o more complete support in non-Sugar environments
o new (and improved) sample code
o Logo code for project added to View Source
o save SVG block lets you generate SVG with Turtle Art
o improved export-to-HTML logic
o new translations
* completed a major refactoring of the code
o 90% smaller download bundle-size
o faster first-time launch
o greatly simplified i18n maintenance
o easier to extend with new blocks and palettes
82
* minor updates to Spanish translations
81
* fixed keyboard input bug introduced in v79
80
* new Finnish translations
79
* backspace enabled when entering numbers
* arbitrarily long numeric strings enabled
* fixed Python error in sample code
* clean up of en artwork
* fix bug in load_image
* detecting XO 1.5 hardware for font-scaling problem
* keyboard and gamepad navigation
* expanded hover help
* better logic for block selection used by copy/paste
78
* new artwork for pen palette
* color blocks
77
* hide status block on start up
* save reference to Python code loaded from the Journal
76
* fixed import error in project
* fixed bullets in exporthtml
* added proper scaling for coordinate blocks
* moved status layer forward
75
* Cartesian coordinates overlay
* polar coordinates overlay
* coordinate display on View Toolbar
* Option to rescale coordinate system to 100x100 on View Toolbar
* Reordered the palettes (moved misc. down)
74
* load start block for new projects
* fixed bug with reloading descriptions from Journal
* added hover help to command line version
* initiate the import Python chooser when Python block is clicked
* saving pastable code to html export
* fixed some problems in export to HTML code
== What is new for developers ==
Raúl Gutiérrez Segalés and I completed a major refactoring for 0.88 which includes a block factory--a more object-oriented approach that should facilitate a more decentralized development approach.
== Internationalization (i18n) and Localization (l10n) ==
== Compatibility ==
Compatible with all versions of Sugar although some functionality is lost with pre-0.82 versions and sharing is incompatible with previous versions.
== Detailed changes ==
As of '''Version 83'''
==Open tickets==
* {{Bug|472}} Remove unexpected 'save/load' tab from toolbar
* {{Bug|489}} Turtle Art text entry should use Entry widget
* {{Bug|673}} Logo program should be displayable in the document View Source
* {{Bug|1057}} Turtle Art feature to add support for "pages"
* {{Bug|1188}} Load samples from turtleart.org
* {{Bug|1203}} Rebase Turtle Art graphics on Cairo
* {{Bug|155}} Turtle Art with Sensors has different requirements for non-XO hardware
* {{Bug|491}} Turtle Art sharing needs new logic
* {{Bug|548}} Turtle Art: read and write to text file
* {{Bug|552}} Turtle art: reinstate sensor input
== Credits ==
* Walter Bender and Raúl Gutiérrez Segalés (with help from Simon Schampijer)
* Especially helpful community feedback from Tony Forster, Ed Cherlin, and Bill Kerr
* Brian Silverman is the first author of Turtle Art