Invivible entities

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andrew
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Invivible entities

Post by andrew » Tue Oct 23, 2012 2:11 pm

From a QCAD user:

After loading my drawing, nothing appears on screen.
When I select all, the entities are there, but I cannot see them.

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andrew
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Re: Invivible entities

Post by andrew » Tue Oct 23, 2012 2:12 pm

Most likely, you have drawn black entities on a black background or white entities on a white background.

There are three ways to resolve this:

Change the color of your entities

or

Change your background color

or

Let QCAD automatically make sure that entities are always visible:
Edit - Application Preferences - Graphics View:
Tick "Prevent white on white / black on black display"
Color lightness threshold: 10
Attachments
color_correction.png
color_correction.png (122.76 KiB) Viewed 5075 times

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andrew
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Re: Invivible entities

Post by andrew » Tue Oct 23, 2012 2:57 pm

Another common problem is that the drawing has huge extents and relatively small entities. This is for example the case, if a small entity is added at an extreme coordinate. You can find your entities by selecting all and looking for blue dots.

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