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- Turtle-Shell.doc
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- The 'Turtle-Shell' file provides the following menus:
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- LOGO The system menu.
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- Load Load a LOGO program file. Gets a file name from the
- file requester.
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- Save This saves contents of all unprotected variables to a
- LOGO program file. Gets the file name from the file
- requester.
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- Edit Switch to text editor.
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- Edit File Edit a LOGO program file. Gets a file name from the
- file requester.
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- Turtle off Close the turtle graphics screen.
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- Interrupt Interrupt a program. This is like the break key (CTRL G)
- except you may continue by giving the command 'stop'.
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- Top Level Stop a program. This is similar to the break
- key (CTRL G).
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- Quit Exit from LOGO.
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- Picture The turtle graphics menu.
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- Load Load picture.
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- Save Save picture.
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- Pattern Select line drawing pattern.
- xxxxx Fifteen line patterns to choose from.
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- Mouse Select mouse tool.
- Draw Draw with mouse.
- Brush 7 Draw with larger brush.
- LinkLine Draw lines connected end to end.
- OneLine Draw one line (rubber band).
- Ellipse Draw ellipse.
- Block Filled rectangle.
- Flood PC Flood fill pixel color.
- Flood OL Flood fill to outline color.
- Position Set turtle position, heading, and size.
- Record Record doodle. This uses the turtle position, heading,
- and size as a reference.
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- Action Do something.
- Home Move turtle to home.
- Clean Erase picture without affecting turtle
- Clear Erase picture, home turtle.
- HogMem Tell LOGO to hold extra memory.
- UnHogMem Tell LOGO not to hold extra memory.
- Recycle Run the garbage colector.
- PlayBack Draw recorded doodle. This uses the turtle position,
- heading, and size as a reference.
- MarkPos Draw line showing the turtles position and size.
- Text Print text at current position.
- Circle Draw circle using turtle position and size.
- Star 5 Draw star using turtle position and size.
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- Pen Set pen and draw modes.
- Up Raise the turtles pen.
- Down Lower the turtles pen.
- JAM1 Set one color draw mode.
- JAM2 Set two color draw mode.
- COMP Set complement mode.
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- Windows Open, move, or size windows.
- Full Full screen graphics.
- Split Split graphics and text.
- Text Full screen text.
- Palette Open palette tool.
- Pen Color Open pen mode tool.
- Mouse Open mouse tool box.
- Action Open action tool box.
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- Colors Change number of screen colors.
- xx Six modes 2 - 64 colors including extra half bright.
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- Size Change screen resolution.
- xxxxx Four sizes.
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- The 'Turtle-Shell' file provides the following procedures:
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- addaction tool-name run-list
- tool-name = Word, menu text for this tool.
- run-list = List of LOGO instructions.
- Add a function to the 'Action' menu.
- Example: addaction "Square [ poly :size 4 ]
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- circle size
- size = Number, radius of circle.
- Draw circle.
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- cs
- Clear screen.
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- ct
- Clear text.
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- endturtle
- Close the turtle graphics screen.
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- fs
- Full screen graphics.
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- playback size recording
- size = Number.
- recording = List, doodle from 'record'.
- Draw recorded doodle.
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- poly size sides
- size = Number, length of sides.
- sides = Number of sides.
- Draw polygon.
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- record
- Output current doodle recording.
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- set-record recording
- recording = List, doodle from 'record'.
- Set current doodle recording.
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- ss
- Split screen.
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- ts
- Full screen text.
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- turtle ( view-modes bit-planes )
- Prepare screen, window, and turtle for turtle graphics.
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