Software Customisation
Reference Manual
Event Driven Graphics
:
Concepts
: Pick Sequence
Pick Sequence
When picking information from the canvas, a single pick cannot always describe what the developer requires. Many instances require a standard and predictable sequence of picks to define some sensible interaction. A simple example of this is a line created between two points in space.
A more complex, but still a predefined sequence of picks, could involve different types of picks, e.g. where a pick sequence requires a user to identify an item then pick a new position where that item is to be positioned.
In some instances, what could be perceived as being a simple single pick sequence can actually require several. The most obvious of these is a positioning picks, a simple position at the origin of an item is only one pick, but a position at an intersection could be either two or three picks depending on the items picked. In these cases, the numbers of picks are handled from within the
edgPickType
object.
1974 to current year.
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