[etoys-dev] Re: [JIRA] Commented: (SQ-682) 'forward by' when snap
to grid is true move one gridspace forward.
sthomas1 at gosargon.com
Mon Mar 22 13:37:44 EDT 2010
There are other ways to accomplish the same tasks (ie: move "forward" one
grid space et al) without being able to specify movement in "grid units"
(ie: move forward grid size).
What exactly is the problem we are trying to solve?
Randy did a beautiful example of moving across a grid in his Lesson
how moving across a grid can be used to measure area. In fact I believe he
did it without using gridding.
Now one thing I have been struggling with is how to measure perimeter. I saw
Randy do it using Polygons.
But not sure how to do it when placing Squares in a Playfield to create a
Any suggestions or a script would be appreciated.
On Mon, Mar 22, 2010 at 12:28 PM, Rita Freudenberg <
rita at isg.cs.uni-magdeburg.de> wrote:
> 'forward by' when snap to grid is true move one gridspace forward.
> Key: SQ-682
> URL: http://tracker.squeakland.org/browse/SQ-682
> Project: squeakland
> Issue Type: Feature
> Components: etoys
> Reporter: Karl Ramberg
> When snap to grid is turned on it would be nice if forward by moved the
> player one grid space forward. Like wise for all the height, width turn etc
> that they reflected the preference griding and showed the grid values
> instead of the pixel values.
> Bert Freudenberg commented on SQ-682:
>>>>> I don't think this would be a good idea. The gridding is for manual
>>>>> placement of objects.
>>>>> But feel free to discuss on the squeakland list (since this is changing
>>>>> behavior, it's not just for developers).
>>>> I agree it's a big change and maybe you are right.
>>>> Maybe it' just complicates stuff unnecessary.
>>>> But we kind of do this on the pixel grid already by moving one pixel
>>>> forward ;-)
>>>> Another related change is defining movement to for example centimeters
>>>> instead of pixels.
>>>> But it is a fundamental change and need more discussion.
>>> Randy, what do you think, would you like to have that for your perimeter
> lessons? Maybe to write a script to calculate the perimeter?
> etoys-dev mailing list
> etoys-dev at squeakland.org
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