0003109: In 7002 Rotating a Circle Morph with odd diameter show a jitter as quadrants are crossed.

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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.

Description

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

0006511

new

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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