Import jpg to scale


#1

Can I import jpegs to scale? I start with a properly scaled pdf drawing that I export as a jpg image. Thereby I can influence pixels and scale. Then I want to import that jpeg to be on scale also. Is this possible? So without scaling the image afterwards which is never precise? Can someone help me?
Frank


#2

There’s no way to set the scale of the JPG when you import it but if you know its exact dimensions, you could draw a rectangle at those dimensions and import it using the rectangle as a guide.


#3

If you export your vector drawing as a .dwg file and then import that into SketchUp, it will be actual geometry (edges). At that point you could be a lot more precise with scaling it up to the accurate size using the Tape Measure than you would with a jpeg, since you can inference actual endpoints vs just guessing over pixels.

EDIT: When testing this, I found that the imported DWG was already to scale, and didn’t need any modifications. Bonus!


#4

That assumes the PDF is a vector file to begin with. Won’t work for raster.


#5

Correct. I made that assumption in order to provide a solution that didn’t use a raster image. If his PDF was already a raster image, he wouldn’t have to export it as a JPEG in the first place. It was already established it doesn’t work for raster images in his original post. My solution assumes the PDF has vector elements, and is a solution should that be the case.


#6

failing a dxf option, a huge tiff or even png would be better than any jpg…

john