Blue Clay QuArc Intro (Part 2)
Define a command called a which performs a 'draw above' command. Your a is to behave just like the predfined command called meta(a).
  1. Type clean followed by the Return key in the Blue Clay Text Input Field.

  2. Type meta(a) followed by the Return key in the Blue Clay Text Input Field.

  3. Define a command called a which behaves the same as meta(a). To do this, simply type in your command definition followed by a Return key in the Blue Clay Text Input Field.

  4. Try out your command by typing a followed by the Return key in the Blue Clay Text Input Field If your a command drew in blue what the meta(a) command drew in red, good! If not, redefine your a command, and retest it. You can retest it by typing
    clean, meta(a), a
    to see if your command behaves properly.

    Now, test it further.

    1. Type clean followed by the Return key in the Blue Clay Text Input Field.

    2. Type green,a,blue,a followed by the Return key in the Blue Clay Text Input Field.
    You can be fairly sure your command is sound if the painter drew a green 'above circle' once, and then drew a blue 'above circle' on top of the green one. If something else happend, fix your a command and retest it in the manner described above.

    Once you are sure your a command is working, do this.

    1. Type clean followed by the Return key in the Blue Clay Text Input Field.

    2. Type a,h,a,d,d,a,h followed by the Return key in the Blue Clay Text Input Field.

    Next define the 'draw below' command.