In making the quilt for Terrapin logo, I still had a couple of problems that I had not resolved yet. One problem is that there seem to be a slight shift in the step of the pattern but it is so slight that it is really not noticable. The shift had to deal with making the arcs. Another problem was when the turtle reached the boundaries of the screen it seem not to follow the commands as noted.
Dr Shafer had noted that scratch is another software that may be use to develop this quilt. If I have time, I may experiment with scratch to see if I can do the quilt project on there.
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We need to look at the coding you are using for the arcs, to see why it is off by a tad. The other thing is how the wrap feature works. We can investigate this as well. Let me know if you get to Scratch.
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