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Canvas MapStructure: Difference between revisions
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[[File:Gpsmap196-mapstructure-layers-ratio.png|thumb|GPSMap196 with [[MapStructure]] layers (currently exhibiting some scaling/LOD issues due to hard-coded assumptions in some of the layers)]] | [[File:Gpsmap196-mapstructure-layers-ratio.png|thumb|GPSMap196 with [[MapStructure]] layers (currently exhibiting some scaling/LOD issues due to hard-coded assumptions in some of the layers)]] | ||
{{FGCquote | |||
|The extra500 developers just posted a few screen shots of the Avidyne Entegra R9 in "moving map" mode, which demonstrates a few use-cases that we do not currently support in MapStructure (the ND being a different matter for now):<br/> | |||
<br/> | |||
[[Extra_EA-500#Map_:_Moving_Map]]<br/> | |||
[[File:IFD_FMS-Map_FPL.png|250px]]<br/> | |||
[[File:IFD_MAP-Map%2B.png|250px]]<br/> | |||
<br/> | |||
Specifically, this probably means that we may need to revamp/resurrect symbol controllers and maybe accept an optional callback to pre-/post-transform individual symbols (they're rotated apparently according to runway orientation), and allow them to be overridden when instantiating the layer (i.e. via the ctor if SVG-based). And we may also want to explore SVG styling by patching svg.nas to run a "transform" callback to customize/colorize certain elements of the SVG. The instrument itself is meanwhile making fairly aggressive use of texture-map based caching for basically ALL symbols.<br/> | |||
<br/> | |||
The other thing is that translation (centered/off center mode) should always be based on the parent group's dimensions (bounding box) and that we really shouldn't be using the top-level canvas, because a MFD very well be split into several screen areas (which also applies to the GPSMap196 and most other modern avionics). | |||
|{{cite web |url=http://forum.flightgear.org/viewtopic.php?p=213354#p213354 | |||
|title=<nowiki>Evolving the MapStructure & NavDisplay Frameworks ...</nowiki> | |||
|author=<nowiki>Hooray</nowiki> | |||
|date=<nowiki>Tue Jun 24</nowiki> | |||
}} | |||
}} | |||
=== Performance === | === Performance === | ||