Pen Width less than one pixel.

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Bhavin - 29 Jul 2005 02:18 GMT

Hi,
Excuse me if this is too naive a question. Though i have been using
System.Drawing since some time now, i admit i donot know a LOT about it yet.

Is a pen-width of lesser than one pixel supported at all?

If i draw two lines with a pen of 0.5 pixels, alongside each other, is there
anyway to make them appear as if it were one line 1 pixel wide? Or will
anything less than 1 be taken as 1 by the .Net framework?

Thanks in advance for any help.

-bhavin

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James Westgate - 29 Jul 2005 09:49 GMT

Hi,

The native underlying type is a float (single) so you can, however when the
lines are drawn you may or may not see the difference depending on a few
things liek the SmoothingMode and the ScaleTransform of the underlying
graphcis obejct, that is the zoom level and the level of smoothing. On a
printer however you will see the difference.

James

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> Hi,
> Excuse me if this is too naive a question. Though i have been using
[quoted text clipped - 10 lines]
>
> -bhavin

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Bhavin - 30 Jul 2005 21:29 GMT

Thanks James.
I have been playing around with lines and pens a bit and wanted a
confirmation from someone from the community that the framework doesnt
default the pen width to 1 pixel as a minimum.

I could actually get a visual difference between a 0.5 pix line and 1 pix
line using AntiAlias and HighQuality Smoothing modes (after your reply).

Thanks again for the tips.

-Bhavin

> Hi,
>
[quoted text clipped - 20 lines]
>>
>> -bhavin

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Pen Width less than one pixel.

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