[Newbies] Rectangles

Michael Rice limitcase at gmail.com
Thu May 25 11:45:27 UTC 2017

How would that work for horizontal bar charts in which bars with no hits
would be displayed the same as bars with a single hit?

On Wed, May 24, 2017 at 11:19 PM, Ralph Boland <rpboland at gmail.com> wrote:

> 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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