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ID Category Severity Reproducibility Date Submitted Last Update
0005290 [Squeak] Morphic minor always 10-25-06 09:54 10-25-06 09:54
Reporter wiz View Status public  
Assigned To
Priority normal Resolution open  
Status new   Product Version 3.9
Summary 0005290: In 7066 (and before) moving gradient filled ellipses leaves glitches. Due to lip box fencepost errors
Description In a fresh Squeak-7066.

From objects get an ellipse.

From the property sheet select gradient fill.

Using halos select the ellipses viewer

From the viewer geometry catagory create script
to increase the ellipses x by 1 and
 to increase the ellipses y by 1

set the ellipses border width to 1
set the length to an even number
set the width to an even number.

run the script.
A double trail of glitches is drawn as the ellipse proceed to the top right.
The clipping on the bottom and the left leaves the glitches.

set length to an odd number (the trail is now single because of the left clipping)

set the width to an odd number (still the single trail because of the left clipping)

set the length back to an even number ( dual trail)

set the border width to 2 ( no trail).
set the border width to 3 ( dual trail again)

So there is a rounding/truncation problem with the clipping.
Additional Information I wonder who gets to do the clipping.

A well thats a journey for another time.

Yours in service, --Jerome Peace

The problem may be due to things in the balloon engine plugin.
See also the tweak report: 0001010

Other related squeak reports:
An an ancient version of this problem: 0000858
And report 0003760 for problems with thick borders
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
10-25-06 09:54 wiz New Issue
05-25-07 02:49 wiz Relationship added related to 0006511
05-25-07 02:59 wiz Relationship replaced child of 0006511


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