[etoys-dev] [etoys-notify] [JIRA] Created: (SQ-1140) Sector tool does not increase angle properly
lists at dcorking.com
Sat Dec 8 15:01:58 EST 2012
I take it you see the angle get out of sync: after each revolution, it
is one degree too small.
I posted a quick fix to the inbox, MorphicExtras-dcorking.75. I made
SectorMorph#angle revert to zero when it reaches 360. On reflection, I
think my change will do more harm than good.
If a learner makes an automated pie chart, it is perfectly reasonable
for a sector to grow to 100% or 360 degrees. The user will expect the
sector to become a full circle, and my 'fix' breaks that. Therefore I
think Richo's original code: modulo 361 - is reasonable.
Perhaps we can provide a more subtle fix? Can we use this hack?
angle := aNumber \\ 360.000000000001.
It still gets out of sync, but much more slowly.
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