Paper Drawings to Full Size Printable Files Workflow

[FlexPar]

I have what is probably these days an odd workflow that I am trying to work out.

I have numerous paper line drawings for some parts and assemblies that I have scanned and cleaned up in photoshop.

I want to import them (trace them?) into Qcad and make nice clean full size drawings that can be modified as desired.

The goal is full size printable files that I can output to a printer. Some of them are very large and would go to a wide format printer.

My first question is how do I get the size right. Say I have a line somewhere on the drawing that is supposed to be 6" long. Is there a way I can select that line, type 6" somewhere and it blow/scale the whole canvas or image up to make that line actually 6"?

Any suggestions at all are greatly appreciated.

Thanks

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[andrew]

To scale (and optionally rotate) a bitmap to adjust it to given reference points, you can use:

Modify > Align Reference Points

The tool lets you choose two reference and target point pairs. The reference points in the bitmap will be aligned to the target points, so you can for example proceed like this:

- select the bitmap
- start Modify > Align Reference Points
- choose the start point of a 6" line in the bitmap as reference point 1 and 0,0 as target point 1
- choose the end point of the same 6" line in the bitmap as reference point 2 and 6,0 as target point 2