snaps don't appear to work

[ngoldie]

Hi,

I am trying to draw walls over a trace reference and no snaps seems to be working, is there somewhere to turn them on?

Thanks
Naomi

[Barry Kelly]

If you switch over to the trace reference can you snap to it then?
I am just wondering if it might be a PDF or something that doesn't have points that you can snap to.

Barry.

[ngoldie]

Hi Barry,

Yes it's a pdf, I didn't realise you couldn't snap to pdf's drawing points.

Thanks!
Naomi

[Erwin Edel]

You can explode a PDF in to lines/fills, but in my experience the measurements aren't very exact (lots of decimals or just plain off by more than half a mm).

[Barry Kelly]

It depends on the PDF.
If it was produced from a vectorial program like Archicad then if you can't snap to the points directly you may be able to 'explode' the PDF and convert it to lines.
I know Archicad PDFs can now have layers but can't remember if the points are snap-able or not or if you always have to explode the PDF first.

If it is a scan from a photocopier then you can't even explode it as it is just a bitmap image.

Barry.

[Erwin Edel]

Might just be my bad luck with vectorial PDF then, or exceptionally sloppy drafting on the end of the party responsible for those PDF drawings.