05-29-2024, 01:34 AM
(02-15-2018, 01:42 PM)Ofnuts Wrote: See Image>Print size. The "print definition" is just an arbitrary ratio of pixels/unit of length. It is sometimes acknowledged, once in a blue moon, to be the size at which you want the image printed, but it has other uses.
- With Gimp's measure tool (
) measure (in pixels) some distance/length in your image between two points for which you know the real distance
- A simple division (length in pixels / physical length) gives how many pixels to the cm/metre/yard/furlong you have in your image.
- Enter these values in the print definition dialog,
- Change the display unit in the small indicator at the bottom left of the image display.
- From now on all measures (Measure tool, but also rulers, guides...) are in physical units.
Thank you so much for this work around! It has saved me printing dozens of charts and physically measuring them. Surely such a basic function as measuring an image with a known scale in physical units will be implemented in the GIMP Measure Tool! Thanks again.