2 replies to this topic

[Jared Smith]

I'm ready to learn how to draft a building, but it's going slow.

I have an old architectural drawing that is stored as an image. I've been able to import it to begin working with it, but something so simple as scaling it is confusing, and I do not know how to give dimensions to the traced lines I will be drawing in the layer(s) above the image. It seems this is an important first step, but I cannot find anything about this in tutorials.

For simple example of what I mean, if I import a picture of a square box which is 2" x 2", within NanoCAD there is no indication that the sides of the square are actually 2". I'd like to specify the length and width of the traced lines so that when I later 3-d print the square, it comes out the right size.

Please point me to a place in documentation or give me pointers on how to do this.

Thank you

[pguimber]

Hello,
use the Scale command with Reference option.
- Call scale command
- Select image
- pick first point (Anywhere, it's just to go after ...)
- Option Reference with R letter
- Pick again first point (The beginning of an object whose length is known on the image)
- Pick point (The end of the object whose length is known on the image)
- Specify the new length.
It's a homothetic transformation.

Best regards
Patrick

[Jared Smith]

I tried as you recommended:

I selected the SCALE command at the command line.The prompt changes to "Select objects or [?]:"
I select the image. It turns grey.
I pick the first point. The crosshair appears.
I type the letter R. Nothing happens.
I select the first point again. The crosshair goes away.

What am I doing wrong?