Image Aspect Ratio, Image Size and Format

These options declare the default aspect ratio, image size and file format for all static image recordings (Maps, Graphs, screen snapshots etc.).

Tip: Tip: the initial default ratio is 16:9. Initial default size is 1920x1080 (full HD). Initial file format is .PNG (maximum lossless compression).

When ‘Image Aspect Ratio’ is set to ‘Custom’ there is an extra field to provide a custom aspect ratio:

Select an aspect ratio option from the ‘Image Aspect Ratio’ drop-down.
- This works almost exactly like the ‘Camera Aspect Ratio’ controls, above, except the image size can be linked to the aspect ratio.
  - When the sizes and aspect ratio are linked, changing one dimension automatically updates the other dimension such that the aspect ratio is always respected.
  - When the sizes and aspect ratio is are unlinked, they are independent and changing a dimension automatically updates the custom aspect ratio. The other image dimension is not changed.
  - To link or unlink sizes and aspect ratio, click the button between the X and Y size boxes:
  - The icon or button here indicates whether sizes and aspect-ratio are linked:
    - this icon (not a button) means sizes are linked to the aspect ratio; they cannot be unlinked.
    - this button means sizes and aspect ratio are linked but can be unlinked.
    - this button means sizes and aspect ratio are not linked but can be linked.
      Tip: Sizes are always automatically linked to preset (non-custom) aspect ratios. Only custom aspect ratios let you link or unlink sizes to the aspect ratio.
Set the preferred default image size in the ‘X:’ and ‘Y:’ boxes, remembering the above rules about linked/unlinked aspect ratios.
1. Only numbers can be entered.
2. Invalid values are highlighted by a red border around the input box.
  Note: The maximum permitted value of X or Y is 2000 pixels. If the sizes and aspect ratio are linked, automatic size adjustments will respect this maximum and the aspect ratio.
Set the preferred file format for static image recordings.
- Options are JPEG (.jpg files), PNG (.png files) and BMP (.bmp files).
  1. JPEG is not recommended because the file compression is lossy (detail is lost and compression artefacts can be introduced, distorting the image).
  2. BMP files do not lose any detail but can be large as they are not compressed.
  3. PMG files offer lossless compression.