I noticed that the scalebar incorrectly handles the prefix for reciprocal units, I noticed this when I was trying to measure distances in a Fourrier transform of an image. My original image has a pixel size of 0.007 nm/pixel, but everything is stored in meters, so 7e-12 m. The scalebar has no problem interpreting this value and puts a scalebar in nm on the image.
To calculate the scale of my Fourrier transform, I take the meters value and convert. My image is 4096x4096 pixels so the scale in the FFT is 1/(7e-12 * 4096)=3.4e7 m^-1/pixel. This is equivalent to 0.034 nm^-1/pixel. When I pass the scale in nm^-1 to the scalebar, it uses the correct nm^-1 units. However, when I pass the scale in m^-1, the scalebar uses Gm^-1.
I noticed that the scalebar incorrectly handles the prefix for reciprocal units, I noticed this when I was trying to measure distances in a Fourrier transform of an image. My original image has a pixel size of 0.007 nm/pixel, but everything is stored in meters, so 7e-12 m. The scalebar has no problem interpreting this value and puts a scalebar in nm on the image.
To calculate the scale of my Fourrier transform, I take the meters value and convert. My image is 4096x4096 pixels so the scale in the FFT is 1/(7e-12 * 4096)=3.4e7 m^-1/pixel. This is equivalent to 0.034 nm^-1/pixel. When I pass the scale in nm^-1 to the scalebar, it uses the correct nm^-1 units. However, when I pass the scale in m^-1, the scalebar uses Gm^-1.