Mantis - Squeak
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6532 ST80 minor always 06-07-07 06:53 07-03-09 00:24
caveman  
 
normal  
closed 3.9  
won't fix  
none    
none  
0006532: Found bug when using Spline example
After typing 'Spline example' and then clicking 'do it' I begin to set points on the workspace by left clicking. Once I am satisfied with the location of these points I click a diffrent mouse button to draw a path along these points and as soon as the path is drawn it disappears. Sometimes not only will the spline disappear but the expression as well leaving a blank workspace and sometimes I will only lay down a couple of dots before everything vanishes again. An interesting thing is that if I hold down the mouse button(either second or third doesn't matter) the spline will remain on the workspace but as soon as I release the button the spline vanishes. I am using an Intel Imac and a mighty mouse. I thought that maybe the mouse was dodgy so I downloaded a Windows version for my laptop which is running XP and uses an A-Link optical mouse but the problem is identical which seems to rule out any problem with operating system ports or mouse glitches.
I would love to use Squeak and Croquet to write and share educational software.

Notes
(0010780)
KenCausey   
06-07-07 17:20   
I think you are misunderstanding this example. Note first of all that this is quite old code and probably pre-dates Morphic. This example interacts with the mouse and display to allow you to specify a Spline, but it does not create a visible object (Morph) for it. It simply draws to the display in what would now, I think, be considered a somewhat hackish manner. The result is that any update to the display will erase part or all of the drawn spline. You may want to look at PolygonMorph.
(0010799)
wiz   
06-11-07 23:45   
Not a real bug. Spline is a somewhat obsolete class and problem was with example code anyway.
(0013143)
KenCausey   
07-03-09 00:24   
example code misunderstood, no bug to fix