10,579
edits
Changes
Activities/Turtle Art/Getting started (view source)
Revision as of 17:22, 29 December 2012
, 17:22, 29 December 2012→Getting Started
==Getting Started==
==Getting Started==
[[Image:TAvertical.png|300px]]
There are several Turtle Art manuals:
* [http://ht.ly/gqueN]
[[Image:New-TA-Repeat-block.png|300px]]
Start by clicking on (or dragging) blocks from the Turtle palette. Use multiple blocks to create drawings; as the turtle moves under your control, colorful lines are drawn.
Start by clicking on (or dragging) blocks from the Turtle palette. Use multiple blocks to create drawings; as the turtle moves under your control, colorful lines are drawn.
You add blocks to your program by clicking on or dragging them from the palette to the main area. You can delete a block by dragging it back onto the palette. Click anywhere on a "stack" of blocks to start executing that stack or by clicking in the Rabbit (fast) , Turtle (slow) or Bug (debug) buttons [[File:Rabbitturtle.jpg |100px]] on the Project Toolbar.
You add blocks to your program by clicking on or dragging them from the palette to the main area. You can delete a block by dragging it back onto the palette. Click anywhere on a "stack" of blocks to start executing that stack or by clicking in the Rabbit (fast) , Turtle (slow) or Bug (debug) buttons [[File:Rabbitturtle.jpg |80px]] on the Project Toolbar.
===The basics===
===The basics===
<gallery>
<gallery>
File:TA-basics.png|Basic turtle graphics: 'forward', 'back', 'arc', and 'right' blocks
File:TA-basics.png|Basic turtle graphics: 'forward', 'back', 'arc', and 'right' blocks
File:TA-pencolor.png|Pen attributes: 'set pen color' block
File:TA-pencolor.png|The 'set color' block affects pen trails, fill and text
</gallery>
<gallery>
File:TA-pensize.png|'set pen size' block
File:TA-pensize.png|'set pen size' block
File:Penupdown.jpg|Pen up and pen down
File:Penupdown.jpg|'pen up' and 'pen down'
</gallery>
</gallery>
===Drawing shapes===
===Drawing shapes===
<gallery>
<gallery>
File:turtlesquare.jpg|Use the repeat block to draw shapes
File:turtlesquare.jpg|Use the 'repeat' block to draw shapes
File:Turtlepolygon.jpg|This can be generalised to n sided polygons, store n in Box1
File:Turtlepolygon.jpg|This can be generalised to n sided polygons, n is stored in 'box 1'
</gallery>
<gallery>
File:Turtlefilledtriangle.jpg|Use 'start fill' and 'end fill' to draw filled shapes
File:Turtlefilledtriangle.jpg|Use 'start fill' and 'end fill' to draw filled shapes
File:TA-sample4.png|There's no limit
</gallery>
===Displaying things===
<gallery>
File:Hello world.jpg|Use 'print' to display in the print window
File:TA-text.png|'show' block used to display at the turtle
File:TA-image.png|'show' an image or video
File:Showcamera.jpg|'show' the camera output
File:Showsound.jpg|'show' plays sounds as well
File:Printnumber.jpg|'print' and 'show' can display text or numbers including results of calculations
File:Stringsandnumbers.jpg|'print' or 'show' mixed text and numbers, using '+'
File:Speech.jpg|Text to speech. Load the Python block with the inbuilt sample code <i>speak.py</i>
</gallery>
</gallery>
<gallery>
<gallery>
File:TA-box-eample.png|named variables:'store in' block
File:TA-box-eample.png|Named variables: store a variable in 'box'
File:Namedstacks.jpg|Named 'stacks' of blocks can be reused
File:ActionBlocks.png|When a new named stack is created, a new action block is added to the palette.
File:Collapsestack.jpg|Collapse a 'stack' of blocks to save space
File:Pushpop.jpg|Store data in the first in last out heap using 'push' and 'pop'
File:Turtlearray.jpg|Box names (and stack names) can be boxes, in this case (taken from the math-dice project), a one-dimensional array of 11 variables has been created.
</gallery>
</gallery>
===Mathematics===
===Displaying things===
<gallery>
<gallery>
File:Hello world.jpg|Using 'print'\
File:Mathoperators.jpg |Math operators including + - * / mod sqrt
File:Printnumber.jpg|'print' and 'show' can display numbers including results of calculations
File:TA-if.png|Logical operations: flow control blocks accept >, <, =, and, not, or as input
File:Stringsandnumbers.jpg|'print' with text and numbers
File:Pie2.png|Make pie charts [http://wiki.sugarlabs.org/go/File:Turtle_Art_Activity_pie_chart.ta]
File:TA-text.png|'show' block used for text
File:Functionblock.jpg|Use Python functions, (accepts any of the [http://docs.python.org/library/time.html time] or [http://docs.python.org/library/math.html math] library functions)
File:TA-image.png|'show' an image, (movies, audio)
File:Coordinates.png|Cartesian and polar coordinate grids
File:Showcamera.jpg|'show' the camera output
File:CM-coordinate-grid.svg|Centimeter coordinate grid (XO only)
</gallery>
</gallery>
===Mathematics===
===Keyboard, mouse and sensor input===
<gallery>
<gallery>
File:TA-if.png|logical operations: 'if' block
File:Keyboardinput.jpg|Reading the keyboard
File:Keyboard.png|Converting the keyboard output to a string
File:Entertermnumber.jpg|Entering a multi digit number, exits with the number in 'box 1', [[http://wiki.sugarlabs.org/go/File:Turtle_Art_getnumber.ta]]
File:Turtlemouse.jpg|Load the Python block with the sample code <i>push_mouse_event.py</i> to read mouse events
File:Printloudness.jpg|Read the microphone
File:Resistance.jpg|Read sensors plugged into the microphone socket [http://wiki.sugarlabs.org/go/Activities/TurtleArt/Using_Turtle_Art_Sensors]
</gallery>
</gallery>