This page (revision-32) was last changed on 03-Feb-2023 15:21 by Maury Markowitz 

This page was created on 07-Aug-2017 01:38 by Roland B. Wassenberg

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Version Date Modified Size Author Changes ... Change note
32 03-Feb-2023 15:21 8 KB Maury Markowitz to previous
31 09-May-2018 19:45 8 KB Maury Markowitz to previous | to last
30 09-May-2018 19:44 8 KB Maury Markowitz to previous | to last
29 09-May-2018 19:26 8 KB Maury Markowitz to previous | to last
28 04-May-2018 14:31 8 KB Maury Markowitz to previous | to last
27 03-May-2018 20:13 8 KB Maury Markowitz to previous | to last
26 01-May-2018 01:15 6 KB Roland B. Wassenberg to previous | to last
25 01-May-2018 00:56 6 KB Roland B. Wassenberg to previous | to last
24 28-Apr-2018 21:49 6 KB Maury Markowitz to previous | to last
23 28-Apr-2018 13:52 6 KB Maury Markowitz to previous | to last
22 28-Apr-2018 13:52 6 KB Maury Markowitz to previous | to last
21 27-Apr-2018 23:52 6 KB Maury Markowitz to previous | to last

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At line 21 changed one line
The code starts with the {{U}} which lifts the pen ({{U}}p) so the following commands will not draw to the screen. This is followed by a {{2}}, which means the next instruction should be run twice. In this case, the next instructions is {{L}}eft. Since each step of a turn is 45 degrees, this causes the turtle to rotate 90 degrees to the left so it points to the left side of the screen. Next, the turtle moves {{F}}orward 12 steps, is pointed {{N}}orth (up, 2R would do the same thing), and then put back {{D}}own so the following commands will cause drawing on the screen.
The code starts with the {{U}} which lifts the pen ({{U}}p) so the following commands will not draw to the screen. This is followed by a {{2}}, which means the next instruction should be run twice. In this case, the next instructions is {{L}}eft. Since each step of a turn is 45 degrees, this causes the turtle to rotate 90 degrees to the left so it points to the left side of the screen. Next, the turtle moves {{F}}orward 12 steps, is pointed {{N}}orth (up). Since the turtle was formerly pointed left, {{2R}} would have the same end effect as the {{N}}. Finally the pen is put back {{D}}own so the following commands will cause drawing on the screen.
This page (revision-32) was last changed on 03-Feb-2023 15:21 by Maury Markowitz  Top