Describe calibration marker placement as part of the activity

[wekitecs]

Users often struggle with where they need to set up the calibration marker. For example, the calibration marker might have to be placed on a hospital bed, on the side of an airplane (for a maintenance procedure), or on the front panel of a machine. This may require quite precise placement instructions, depending on needed accuracy of all locations/points of interest. For example, for the hospital bed, a general instruction of place in the middle of the bed will do for most situations, while the placement on the front panel of a machine likely must be exactly touching the L in LOGO on the machine. If action step 1 is about setting up the marker, then instruction and e.g. an image augmentation plus a measurement glyph can be provided to support the set up.

Technically: In ARLEM: the workplace root element has an attribute called "origin", which links against a detectable (marker), see page 26 of P1589-2020.

UX: This will require suppressing the "calibrate" instruction upon start of the activity, as it is replaced by in-experience instructions. Maybe a checkbox "[X] experience includes instruction on how to calibrate" would do?

[fwild]

This could just be more info that can be displayed on the 'start calibration' dialogue - including some text and maybe a photo?

[fwild]

@fedfomi @fominykh we need a UI design proposal for a 'start dialogue' that should be displayed, once an activity has been selected from the list. This 'start dialogue' should contain such information, but also e.g. classroom instructions. And there probably should be the calibrate button on here as well.