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Canvas Draw: Difference between revisions
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It seems, it would be good to start such thing and my first elements would be a compass rose and a linear tape (e.g. for speed and altitude), stylable of course. So the library should also contain a structure to organize styles. | It seems, it would be good to start such thing and my first elements would be a compass rose and a linear tape (e.g. for speed and altitude), stylable of course. So the library should also contain a structure to organize styles. | ||
== Design == | |||
Ideally, the new 2D drawing helpers would be agnostic to the concrete use-case, so that they can be used for arbitrary purposes. This can be accomplished by following a few simple design principles: | |||
* all drawing callbacks should accept a mandatory group/element node | |||
* all drawing callbacks should accept/support an optional options hash | |||
* all drawing callback should return the corresponding Canvas element | |||
This would be in line with the existing Canvas/MapStructure APIs, and it would also make it possible to easily use delegates to customize internal behavior | |||
== Related == | == Related == | ||