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FlightGear Newsletter October 2016: Difference between revisions
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FlightGear Newsletter October 2016 (view source)
Revision as of 18:03, 30 October 2016
, 30 October 2016→Benchmarking Canvas Path Performance
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Continue reading at [[Howto:Canvas Path Benchmarking]] ... | Continue reading at [[Howto:Canvas Path Benchmarking]] ... | ||
=== Live-Streaming a Canvas via HTTP === | |||
[[File:Canvas-ND-live-streaming-via-httpd.png|thumb|Screenshot showing a single Canvas texture ([[NavDisplay]]) streamed to firefox via httpd at 2hz <ref>https://forum.flightgear.org/viewtopic.php?f=71&t=30642&p=297716#p297716</ref>]] | |||
There are situations, e.g., for home cockpit builders <ref>{{cite web | |||
|url = https://forum.flightgear.org/viewtopic.php?p=296448#p296448 | |||
|title = <nowiki> Canvas remote drawing </nowiki> | |||
|author = <nowiki> ThomasS </nowiki> | |||
|date = Oct 10th, 2016 | |||
|added = Oct 10th, 2016 | |||
|script_version = 0.40 | |||
}}</ref>, where it is useful to display instruments like a [[PFD]], [[ND]], EICAS or any [[MFD]] externally from the FlightGear 3D main window in a separate window or on a separate monitor, computer or a mobile device <ref>{{cite web | |||
|url = https://forum.flightgear.org/viewtopic.php?p=214980#p214980 | |||
|title = <nowiki> Need to Create a Standalone PFD </nowiki> | |||
|author = <nowiki> deena102 </nowiki> | |||
|date = Jul 18th, 2014 | |||
|added = Jul 18th, 2014 | |||
|script_version = 0.40 | |||
}}</ref> <ref>{{cite web | |||
|url = https://forum.flightgear.org/viewtopic.php?p=199428#p199428 | |||
|title = <nowiki> Re: TQ/Panel for FG made with Kivy </nowiki> | |||
|author = <nowiki> pommesschranke </nowiki> | |||
|date = Jan 31st, 2014 | |||
|added = Jan 31st, 2014 | |||
|script_version = 0.40 | |||
}}</ref> <ref>{{cite web | |||
|url = https://forum.flightgear.org/viewtopic.php?p=169150#p169150 | |||
|title = <nowiki> Re: using FGpanel to display various instruments and electri </nowiki> | |||
|author = <nowiki> someguy </nowiki> | |||
|date = Oct 23rd, 2012 | |||
|added = Oct 23rd, 2012 | |||
|script_version = 0.40 | |||
}}</ref>. | |||
Many of these avionics/graphics are created by FlightGear's 2D drawing [[Canvas]] system internally. | |||
In addition there, are a number of other use-cases where being able to obtain a Canvas from fgfs using a network protocol like http may be desirable (e.g. imagine getting a tilemap based on actual scenery from FlightGear <ref>{{cite web | |||
|url = https://forum.flightgear.org/viewtopic.php?p=203495#p203495 | |||
|title = <nowiki> Re: Atlas still in use ? </nowiki> | |||
|author = <nowiki> Torsten </nowiki> | |||
|date = Mar 17th, 2014 | |||
|added = Mar 17th, 2014 | |||
|script_version = 0.40 | |||
}}</ref>) <ref>{{cite web | |||
|url = https://forum.flightgear.org/viewtopic.php?p=192817#p192817 | |||
|title = <nowiki> How to simulate capturing an image using a camera </nowiki> | |||
|author = <nowiki> roy111 </nowiki> | |||
|date = Oct 29th, 2013 | |||
|added = Oct 29th, 2013 | |||
|script_version = 0.40 | |||
}}</ref><ref>{{cite web | |||
|url = https://forum.flightgear.org/viewtopic.php?p=219105#p219105 | |||
|title = <nowiki> FGWebPanel aka FGPanel 2.0 or: FGPanel goes html </nowiki> | |||
|author = <nowiki> Torsten </nowiki> | |||
|date = Sep 22nd, 2014 | |||
|added = Sep 22nd, 2014 | |||
|script_version = 0.40 | |||
}}</ref>. | |||
ThomasS has created a patch for FlightGear for downloading any canvas image from a running FlightGear process by HTTP by serializing it to a raster image and serving that via the built-in mongoose based httpd server created by Torsten <ref>{{cite web | |||
|url = https://forum.flightgear.org/viewtopic.php?p=213146#p213146 | |||
|title = <nowiki> Serializing a </nowiki> | |||
|author = <nowiki> Hooray </nowiki> | |||
|date = Jun 22nd, 2014 | |||
|added = Jun 22nd, 2014 | |||
|script_version = 0.40 | |||
}}</ref> <ref>{{cite web | |||
|url = https://forum.flightgear.org/viewtopic.php?p=203550#p203550 | |||
|title = <nowiki> Re: Atlas still in use ? </nowiki> | |||
|author = <nowiki> Hooray </nowiki> | |||
|date = Mar 18th, 2014 | |||
|added = Mar 18th, 2014 | |||
|script_version = 0.40 | |||
}}</ref>. | |||
This could be considered the groundwork needed for more sophisticated use-cases such as e.g. actually streaming a live video of a certain MFD to a browser. | |||
Continue reading at [[Read canvas image by HTTP]] | |||
== In the hangar == | == In the hangar == | ||