To trigger a new transformation, hit enter in either an input
coordinate field, input or output system fields or simply by
changing input or output system from the drop down list.
A transformation can also be triggered by pressing the 'Transform'
button below the output fields.
Changing the input system will not automatically alter the
coordinates in the input fields (as in the 'old' KMSTrans)
- instead this triggers a transformation of what is already in the
input fields, as when the output system is changed. If you want to
change the input system and also have the input coordinates
transformed/updated, use the 'swap input/output' button.
Error messages and various extra information from the
transformation will appear in the message box in the lower right
corner of the window. For example if a transformation produces an
error or warning it will be displayed in the message box.