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Canvas Map API: Difference between revisions
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== Objective == | == Objective == | ||
The Nasal module map.nas in $FG_ROOT/Nasal/canvas will serve as the shared backend for all sorts of mapping/charting purposes in FlightGear. So that GUI dialogs and instruments can use the same code. As of 10/2012 the module is still being designed, so nothing written here is set in stone. This page is just intended to document the whole process. | The Nasal module map.nas in $FG_ROOT/Nasal/canvas will serve as the shared backend for all sorts of mapping/charting purposes in FlightGear. So that GUI dialogs and instruments can use the same code. As of 10/2012 the module is still being designed, so nothing written here is set in stone. This page is just intended to document the whole process. | ||
== Open Issues == | |||
* Refining the model API | |||
* Using the system for different dialogs & instruments | |||
* generalizing the currently required dialog "prologue" in the Nasal/open block (using caller() and closure()) | |||
* supporting/addressing multiple canvases per dialog | |||
* implementing a real MVC controller and porting the code to use it | |||
* improving the MVC separation further | |||
* extending the Layer API to support the z-index (rendering ordering) | |||
* resource cleanup (listeners & timers) | |||
== Design == | == Design == | ||