[Newbies] Rectangles

Ralph Boland rpboland at gmail.com
Thu May 25 03:19:45 UTC 2017

I just attempted to draw a rectangle with dimensions  3 at 3 corner: 9 at 3.
Nothing gets drawn.  The reason that nothing is drawn is that the width of
the rectangle is 0.  This makes sense for real numbers but for a pixelated
screen or other display medium the dimensions of the rectangle
should be 1 x 7  not  0 x 6!?.  This is 7 pixels needed to draw, not 0.

The same issues occur for the height of the rectangles.

I would think that the way things work would cause all kinds of problems
but since Rectangles are pretty basic, either I am wrong,
or every bit of Squeak code using rectangles has adjusted accordingly.

Please clarify.

How do Java and other languages handle this?

Ralph Boland

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