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Activities/Turtle Art/Getting started: Difference between revisions

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==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.
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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|The 'set color' block affects pen trails, fill and text
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>


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<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: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: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: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 10 boxes are created. This is a powerful programming feature. A one dimensional array of variables has been effectively created.
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>


===Displaying things===
===Mathematics===
<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 or video
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)
File:Showsound.jpg|'show' plays sounds as well
</gallery>
</gallery>


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File:Keyboardinput.jpg|Reading the keyboard
File:Keyboardinput.jpg|Reading the keyboard
File:Keyboard.png|Converting the keyboard output to a string
File:Keyboard.png|Converting the keyboard output to a string
File:Entertermnumber.jpg|Getting a multi digit number [[http://wiki.sugarlabs.org/go/File:Turtle_Art_getnumber.ta]]
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: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 or external sensors
File:Printloudness.jpg|Read the microphone  
</gallery>
File:Resistance.jpg|Read sensors plugged into the microphone socket [http://wiki.sugarlabs.org/go/Activities/TurtleArt/Using_Turtle_Art_Sensors]
 
===Mathematics===
<gallery>
File:TA-if.png|logical operations: 'if' block
File:Pie2.png|Make pie charts
File:Functionblock.jpg|Use Python functions
</gallery>
</gallery>
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