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ID Category Severity Reproducibility Date Submitted Last Update
0003109 [Squeak] Morphic minor always 02-26-06 00:41 05-31-07 00:02
Reporter wiz View Status public  
Assigned To
Priority normal Resolution open  
Status new   Product Version 3.9
Summary 0003109: In 7002 Rotating a Circle Morph with odd diameter show a jitter as quadrants are crossed.
For this one from 7002 get a CircleMorph from parts bin.
With its debug handle get an inspector for this morph.
and also for its extention's otherProperties dictionary.
Enlarge the circle until it has a odd diameter.
The referencePoint property will show a xx.5 @ yy.5
Make it translucent.
Duplicate it in place and send the duplicate to the back.

Now using the blue halo handle rotate the circle.

The circle and bounding box will jitter up, right, down and left. as the quadrents are crossed.

This does not happen for even diameter circles.

Additional Information Another TrucRoundoff bug most likely.

Posted here to give another clear case to solve.

[OT] The Referencepoint handle is rock steady for circles. Kudo's to ned.
Attached Files

- Relationships
child of 0006511new  Mother of all Morphic Graphical off-by-one/fencepost -error reports. 

There are no notes attached to this issue.

- Issue History
Date Modified Username Field Change
02-26-06 00:41 wiz New Issue
05-31-07 00:02 wiz Relationship added child of 0006511

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