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FG1000

27,397 bytes added, 8 May
+- Template:Cite web instead of Template:PDF Link, which was only used on this page and defaulted to page 190 of the Garmin G1000 Pilot’s Guide for Cessna Nav III, Rev. A
{{Stub}}
[[File:StuartsSlippyMap1Mirrored MFD.png|thumb|Stuart pushed some changes to fgdata with OpenStreetMapFG1000 MFD being displayed (incorrectly!) in a DA-40, OpenAIP and VFRMap layers for the Canvas Map Layer system, which can be seen on the canvas map dialog. They use mirrored to a generic Slippy Map OverlayLayer Map Layer. Additional web-based mapping can be trivially added by creating a new lcontroller. See NasalGUI window at 50% scale (02/Canvas/map/OpenAIP.lcontroller for an example.Stuart also added a Web Mercator Projection to the Canvas Map support.The wiki will be updated shortly.<ref>{{cite web |url = https2018)]][[File://forum.flightgear.org/viewtopicFG1000 SVG UI.php?p=319545#p319545 jpg|title = <nowiki> Re: Canvas G1000 </nowiki> thumb|author = <nowiki> stuart </nowiki> |date = Sep 28thStuart pushed an SVG UI for the FG1000, 2017 |added = Sep 28th, 2017 |script_version = 0replacing the PUI version.40 }}<(01/ref>2018)]]
{{Infobox subsystem
|name = FG1000
|started = 07/2017
|description = G1000-based MFD emulation
|status = Under active development as of 07/2017
|developers = {{Usr|Stuart}}, Richard (via [[Emesary]]), Michat (UI graphics), www2 (3D artwork) <ref>https://forum.flightgear.org/viewtopic.php?f=71&t=32764&start=60#p327229</ref>
|changelog = https://sourceforge.net/p/flightgear/fgdata/ci/next/log/?path=/Aircraft/Instruments-3d/FG1000
|folders = https://sourceforge.net/p/flightgear/fgdata/ci/next/tree/Aircraft/Instruments-3d/FG1000/
}}
==Current Status = October 2017 ===Stuart committed some changes to update the Select Airport dialog to use Canvas MapStructure Layers to display airport information, rather than the now deprecated map layers. The change should be largely transparent to end users - the only significant change is that your can display navigation symbols. This is all part of a long-term effort to provide the building blocks for a Garmin G1000 - these layers could be used for the airport display on the MFD, and could easily be combined with the APS layer to show a moving aircraft.<ref>{{cite web |url = https://sourceforge.net/p/flightgear/mailman/message/36075357/ |title = <nowiki> [Flightgear-devel] Updated Select Airport dialog </nowiki> |author = <nowiki> Stuart Buchanan </nowiki> |date = Oct 13th, 2017 |added = Oct 13th, 2017 |script_version = 0.40 }}</ref>
=== September 2017 ===21/02/2019:Stuart added some new Nasal Canvas MapLayers * PFD is largely complete. NRST, ALT units and alternative units still to support Slippy Mapsimplement.* MFD is functional, as used by most web-based mapping services such as openstreetmap. This allows us to and now includes display sectional charts (for and editing of the US - vfrmap.com)current flightplan, and airspace along with moving map, engine information (courtesy of openaip.org), * MFD and PFD can be displayed as well a GUI window under Debug menu or added to an aircraft with the GDU-1045 model as part of a openstreetmap data3D cockpit. The canvas Map dialog has been updated to support these layers. Map data * GFC700 autopilot is retrieved over http integrated and cached locallyincludes all modes apart from VNV (vertical navigation to follow a flightplan) and BC (ILS back-course).<ref>{{cite web |url = * A reference implementation is available for the Cessna 182T https://sourceforgegithub.netcom/pHHS81/flightgearc182s/mailman/message/36056088/ |title = <nowiki> [Flightgear-devel] Canvas MapLayer for OpenStreetMap, OpenAIP, VFR Sectionals </nowiki> |author = <nowiki> Stuart Buchanan </nowiki> |date = Sep 28th, 2017 |added = Sep 28th, 2017 |script_version = 0.40 }}<tree/ref>C182T
There's still a number of pages to write, and the more complex pages around route planning will likely be particularly challenging, but it should be far faster now these blocks are in place. See the Design Notes for details.
 
Next steps:
* Writing the remaining pages
* Styling the pages - making the iconography match Garmin exactly.
 
=== Gallery ===
<gallery mode=packed widths=230px heights=230px>
PFD 20180406.png|FG1000 PFD showing inset map, current wind data, HSI with GPS bearing, active flightplan list
MFD 20180406.png|FG1000 MFD with Cessna 182T Engine Information System (EIS), and Active Flightplan
FG1000_Checklist_MFD_page.png|FG1000 MFD with Checklist page displayed
</gallery>
 
== A Cheat's Guide to Using the FG1000 ==
 
For those without the time or interest to read the G1000 User Guide, here's a very quick run-down on navigating through the MFD:
 
General:
* Click on the buttons, though some are not implemented yet.
* Use the mouse wheel to scroll the knobs (NAV, HDG, ALT, COM, CRS/BARO, RANGE, FMS). For knobs with both and inner and an outer (NAV, COM, CRS/BARO, FMS), scrolling when pressing the Shift key changes the outer knob.
* Use the outer FMS knob (shift-mouse wheel on the FMS knob on the bottom right) to navigate through the page groups.
* Use the inner FMS knob (mouse wheel on the FMS knob on the bottom right) to navigate through the pages within the group. The currently selected page is shown in blue. If you stop moving the cursor, the page will be loaded in 0.5s.
* Within a page, click on the FMS knob to activate the cursor (CRSR). You you should see some element highlighted on the page, typically flashing. You can navigate around the page using the outer and inner FMS knobs. The Outer FMS knob (shift-mouse wheel) typical moves the cursor between elements. The Inner FMS knob typically changes the selected item.
* Use the RANGE knob to zoom map views in/out.
 
===MFD===
* Artificial horizon, compass rose, altimeter and airspeed indicator are all hopefully obvious!
* HSI can display NAV1, NAV2, GPS information (press the CDI softkey)
* Wind information (press PFD->WIND then select one of the options for display)
* Bearings to NAV1, NAV2, GPS (press PFD then BRG1/BRG2 to cycle through the options)
* Inset Map (Press INSET softkey)
* Active Flight Plan (press FPL when there is an active flightplan to display)
* DirectTo GPS (press DTO)
* Transponder (press XPDR)
 
===MFD===
* There is a two channel NAV/COM with an active and standby frequency and automatic ID of NAV frequencies at the top of the UI. They all integrate with the standard properties, so should work automatically with most aircraft.
* If you have a frequency highlighted in any of the pages (e.g. WPT - AIRPORT INFORMATION) press the ENT key to load it into the standby NAV/COM frequency as appropriate.
* To set up a GPS Direct To route:
** Press the DTO button (D with an arrow through it on the right side of the panel, below the word "PAN"). This will bring up a Direct To window, allowing you to enter the ID of an airport, Fix etc. to navigate to.
** You can enter the ID in one of three ways:
*** Scroll the FMS knob backwards to bring up a sub-menu of waypoints categories (FPL, NRST, RECENT, USER, AIRWAY). Use the inner FMS knob to scroll between the different categories, and the outer FMS knob to select a specific item.
*** Scroll the FMS knob forwards to enter an ID manually using the FMS knob. Use the outer FMS knob to move to the next poisition in the ID.
*** Use multikey support to type in the ID using the keyboard - type ":ms" followed by the ID. This is by far the fastest method!
** Once you've got an ID, press ENT which will load details into the window and highlight the ACTIVATE button.
** Press ENT once more to load the Direct-to into the GPS and activate it.
* To view airport information, select the WPT - AIRPORT INFORMATION page. Use the outer FMS knob to move between the AIRPORT, RUNWAYS and FREQUENCY boxes, and the inner FMS to edit the airport ID, scroll through available runways, or highlight a frequency.
* To edit the current flightplan, press the FPL page, then press the CRSR and enter waypoints for DTO above.
 
 
===GFC700 Autopilot===
The GFC700 autopilot is a two axis autopilot with independent lateral and vertical modes. The default later/vertical modes are ROL and PIT, which hold the current roll and pitch respectively.
If installed on the aircraft, the GFC700 autopilot is enabled by pressing any of the buttons on the bottom left of the PFD/MFD fascia:
* AP enables/disables autopilot
* FD enables a Flight Director mode, displaying control bars to follow manually. Note that this button is disabled when the autopilot is enabled.
* HDG enables a heading mode, tracking the blue heading bug. Use the HDG knob on the PFD to set.
* VS enables Vertical Speed hold. Current target is displayed at the top of the PFD. It may be adjusted by using NOSE UP / NOSE DN.
* ALT enables Altitude Hold, which holds the current altitude.
* GA enables Go Around, which sets ROL to 0 and PIT to 7 degrees nose up.
* NAV enables NAV mode. The navigation source depends on what the CDI is set to on the PFD. Currently this is only implemented for GPS.
* APR enables Approach mode for both vertical and lateral GPS or ILS approaches. Will use the currently selected CDI source.
* VNV enables vertical NAV mode (not yet implemented)
* FLC enables Flight Level Change, where the autopilot will maintain the current airspeed by pitch. NOSE UP / NOSE DN is used to set the target airspeed, which is displayed at the top of the PFD, and on the airspeed tape.
* BC enables Back Course mode (not yet implemented)
 
 
Buttons toggle modes on/off, defaulting to ROL for lateral and PIT for vertical. The current pitch setting in PIT mode can be adjusted by using the NOSE UP and NOSE DN buttons.
 
In PIT/VS/FLC mode, Selected Altitude Capture mode (ALTS) is armed, targetting the current altitude bug. Once the aircraft gets within 200ft of the selected altitude the autopilot will automatically transition to ALTS and then ALT mode to track that altitude. Note that once the altitude is fixed in ALTS mode changing the altitude bug will not change the target altitude.
 
(Control Wheel Steering (CWS) can be used to set new ROL/PIT targets, but is not yet implemented)
 
===Multikey Support===
 
To improve usability, the FG1000 also supports multikey. If installed on the aircraft (aircraft developers need to include Aircraft/Instruments-3d/FG1000/fg1000-multikey.xml), the following keys are available.
 
* ":p" controls the PFD
** 1- 12 selects the softkeys
** s allows you to use the keyboard to enter text directly into the PFD, e.g. when entering an airport
* ":m" controls the MFD
** 1-12 selects the softkeys
** a selects the Airport Information page
** c selects the Checklists page
** f selects the Flightplan page
** m selects the Navigation Map page
** n selects the Nearest Airports page
** s allows you to use the keyboard to enter text directly into the PFD, e.g. when entering an airport
** t selects the Traffic Map page
 
== Aircraft Installation ==
 
Adding the FG1000 to an aircraft is intended to be fairly straightforward.
 
=== Add the GDU to the cockpit ===
 
Place one or more of the display (GDU) units in your model. The XML files
are in GDU104X directory and are named <model>.<device-number>.xml, e.g.
 
GDU-1045.1.xml GDU-1045.2.xml GDU-1045.3.xml GDU-1045.4.xml
 
The <device-number> is referenced later to identify which displays to used
for each PFD, MFD etc. You must only used one of each <device-number> value,
though you can mix and match the GDU models.
 
The different GDU models are as follows:
 
* GDU-1040 - No autopilot controls
* GDU-1044B - autopilot controls without VNAV
* GDU-1045 - autopilot controls with VNAV
 
=== Include the GFC700 autopilot (optional)===
 
If using the 1044B or 1045 GDU, the GFC700 autopilot can be incorporated by adding the following to under /sim/systems
<syntaxhighlight lang="xml">
<autopilot>
<path>Aircraft/Instruments-3d/FG1000/GFC700.xml</path>
</autopilot>
</syntaxhighlight>
 
The autopilot has been tuned for the Cessna 182, so may not be correct for light jets.
 
=== Load the Interfaces to provide data ===
 
This is used to provide airdata, navdata, NAV/COM settings, engine information
to the GDUs. There is a
generic interface (GenericInterfaceController) that uses the standard FG route
manager, GPS, navigation data and NAV/COM settings, and engine data for a single
piston engine.
 
You need to load it as follows:
 
<syntaxhighlight lang="nasal">
var nasal_dir = getprop("/sim/fg-root") ~ "/Aircraft/Instruments-3d/FG1000/Nasal/";
io.load_nasal(nasal_dir ~ 'Interfaces/GenericInterfaceController.nas', "fg1000");
 
var interfaceController = fg1000.GenericInterfaceController.getOrCreateInstance();
interfaceController.start();
</syntaxhighlight>
 
You may want to create your own version depending on what properties you are
using for the NAV/COM, and your engine configuration.
 
Note that you should only start the interface after you've started the FG1000
as they will publish information at start of day that the displays need.
 
=== Create an EIS Display ===
 
This is the Engine Information System and displays on the left side of the MFD.
 
A simply EIS for the Cessna 182T is provided. For other aircraft you will need to create your own. The simplest way to do this is
 
# Copy Aircraft/Instruments-3d/FG1000/EIS into your aircraft Nasal directory. Re-name EIS-c182t.nas to something sensible (e.g. EIS-[aircraft].nas). Don't forget to rename the class itself!
# Copy one of the EIS .svg files from Aircraft/Instruments-3d/FG1000/MFDPages into your aircraft Nasal. Modify it as required, noting the names of objects and how they map to the EIS.nas file.
# Edit the SVG and EIS-[aircraft].nas as appropriate. In particular note that the Fuel submenu is used to set the contents of the fuel tanks manually, with a fuel totalizer approach.
# Copy Aircraft/Instruments-3d/FG1000/Nasal/Interfaces/GenericEISPublisher.nas into your Nasal directory, and rename it (e.g. [aircraft]EISPublisher.nas. Don't forget to rename the class itself! Modify it to publish the correct set of properties to Emesary. Note that for multiple engine aircraft you need to modify the publish() method.
# Copy Aircraft/Instruments-3d/FG1000/Nasal/Interfaces/GenericInterfaceController.nas into your Nasal directory, and rename it (e.g. [aircraft]InterfaceController.nas). Modify it to refer to your new [aircraft]EISPublisher.
# Finally, modify whatever Nasal you use to load the FG1000 to pass in the new EIS class and SVG file. Note that you need to load the EIS Controller, style and Options classes as well.
 
This is what your Nasal file may look like at the end:
 
<syntaxhighlight lang="nasal">
# Load custom Interface controller, which will refer to the EISPublisher.
io.load_nasal('AircraftInterfaceController.nas');
var interfaceController = AircraftInterfaceController.getOrCreateInstance();
interfaceController.start();
 
# Load the custom EIS display
io.load_nasal('EIS.nas', "eis");
io.load_nasal('EISController.nas', "eis");
io.load_nasal('EISStyles.nas', "eis");
io.load_nasal('EISOptions.nas', "eis");
var EIS_Class = eis.EIS;
 
# Create the FG1000 using custom EIS
var fg1000system = fg1000.FG1000.getOrCreateInstance(EIS_Class:EIS_Class, EIS_SVG:"Nasal/EIS.svg);
</syntaxhighlight>
 
=== Add multikey support ===
Include <code>Aircraft/Instruments-3d/FG1000/fg1000-multikey.xml</code> in your -set.xml file to support multikey.
 
<syntaxhighlight lang="xml">
<input>
<keyboard n="0">
<multikey include="Aircraft/Instruments-3d/FG1000/fg1000-multikey.xml"/>
</keyboard>
<input>
</syntaxhighlight>
 
 
See [[Howto:Add_multi-key_commands_to_an_aircraft]] for further details.
 
=== Load and start the FG1000 system ===
 
A simple FG1000 using the generic EIS, and displaying PFD on device-number 1 and an MFD on device-number 2 is as follows:
 
<syntaxhighlight lang="nasal">
var nasal_dir = getprop("/sim/fg-root") ~ "/Aircraft/Instruments-3d/FG1000/Nasal/";
io.load_nasal(nasal_dir ~ 'FG1000.nas', "fg1000");
 
# Create the FG1000
var fg1000system = fg1000.FG1000.getOrCreateInstance();
 
# Create a PFD as device 1, MFD as device 2
fg1000system.addPFD(index:1);
fg1000system.addMFD(index:2);
 
# Map the devices to placement objects Screen{i}, in this case Screen1 and Screen2
fg1000system.display(index:1);
fg1000system.display(index:2);
 
# Show the devices
fg1000system.show(index:1);
fg1000system.show(index:2);
 
# Display a GUI version of device 1 at 50% scale.
#fg1000system.displayGUI(index:1, scale:0.5);
</syntaxhighlight>
 
== Page Status ==
 
This is the current status of the individual pages. Full progress bars indicate that they are functionally complete, though the iconography is not correct.
 
{| class="wikitable sortable"
|-
! Page !! Reference !! Status !! Notes
|-
| {{FG1000 file|name=NavigationMap|label=Navigation Map}} || || {{progressbar|100|20}} || See Layers below
|-
| {{FG1000 file|name=TrafficMap|label=Traffic Map}} || || {{progressbar|100|20}} || Zoom controls unclear
|-
| {{FG1000 file|name=Stormscope|label=Storm Scope}} || || {{progressbar|0|20}} ||
|-
| {{FG1000 file|name=WeatherDataLink|label=Weather Data Link}} || || {{progressbar|0|20}} ||
|-
| {{FG1000 file|name=TAWSB|label=TAWS-B}}|| || {{progressbar|0|20}} ||
|-
| {{FG1000 file|name=AirportInformation|label=Airport Information}} || || {{progressbar|100|20}} || Needs additional page of AOPA information, which we don't have
|-
| {{FG1000 file|name=IntersectionInfo|label=Intersection Information}} || || {{progressbar|100|20}} ||
|-
| {{FG1000 file|name=NDBInfo|label=NDB Information}} || || {{progressbar|100|20}} ||
|-
| {{FG1000 file|name=VORInfo|label=VOR Information}} || || {{progressbar|100|20}} ||
|-
| User WPT Information || || {{progressbar|0|20}} ||
|-
| Trip Planning || || {{progressbar|0|20}} ||
|-
| Utility || || {{progressbar|0|20}} ||
|-
| GPS Status || || {{progressbar|0|20}} ||
|-
| XM Radio || || {{progressbar|0|20}} ||
|-
| System Status || || {{progressbar|0|20}} ||
|-
| {{FG1000 file|name=ActiveFlightPlanNarrow|label=Active Flight Plan}} || || {{progressbar|100|20}} || Viewing and editing of the active flight plan implemented. VNAV and the "wide view" not yet implemented
|-
| Flight Plan Catalog || || {{progressbar|0|20}} ||
|-
| Stored Flight Plan || || {{progressbar|0|20}} ||
|-
| {{FG1000 file|name=Checklist|label=Checklist}} || || {{progressbar|100|20}} ||
|-
| {{FG1000 file|name=NearestAirports|label=Nearest Airports}} || || {{progressbar|100|20}} ||
|-
| {{FG1000 file|name=NearestIntersections|label=Nearest Intersections}} || || {{progressbar|100|20}} ||
|-
| {{FG1000 file|name=NearestNDB|label=Nearest NDB}} || || {{progressbar|100|20}} ||
|-
| {{FG1000 file|name=NearestNDB|label=Nearest VOR}} || || {{progressbar|100|20}} ||
|-
| Nearest User Waypoints || || {{progressbar|0|20}} ||
|-
| Nearest Frequencies || || {{progressbar|0|20}} ||
|-
| Nearest Airspaces || || {{progressbar|0|20}}||
|}
 
This is the current status of the major functional elements
 
{| class="wikitable"
|-
! Area !! Status !! Notes
|-
| Navigation - FMS || {{progressbar|100|20}} ||
|-
| Softkeys || {{progressbar|100|20}} ||
|-
| MENU key || {{progressbar|0|20}} ||
|-
| NAV/COM || {{progressbar|90|20}} || Volume controls to be added
|-
| GPE Header || {{progressbar|0|20}} ||
|}
== Motivation ==
The airspace system is in the process of changing drastically [...] this isn't just a matter of throwing up a canvas showing some GPS waypoints and a magenta line. Modern navigators are astoundingly-complex devices — probably an order of magnitude more lines of code than FlightGear itself — and even their basic flight planning algorithms and databases (e.g. fly-by waypoints vs fly-over waypoints, open vs closed approach procedures, transitions into RNAV approaches, etc.) are far beyond the scope of anything we've tried, and we'd also need an up-to-date database far more complex than the ones we have now. Once you get to the extra features, like FIS-B weather or TIS-B traffic info over ADS-B, or TAWS (terrain alerting), we're probably in way over our heads trying to emulate even the simplest general-aviation IFR GPS.
This may help folks understand what the G1000 is all about: <ref name="Pilot's Guide">{{cite web| url = http://static.garmincdn.com/pumac/190-00498-07_0A_Web.pdf | title = Garmin G1000 Pilot’s Guide for Cessna Nav III, Rev. A| date = October, 2011| publisher = Garmin International, Inc.| format = pdf| archiveurl = https://web.archive.org/web/20170708032442/http://static.garmincdn.com/pumac/190-00498-07_0A_Web.pdf| archivedate = | accessdate = May 8, 2019}}</ref>
Writing a G1000 isn't that hard. Writing a '''feature complete''' G1000 is a ton of work. <ref>{{cite web
|url = https://sourceforge.net/p/flightgear/mailman/message/35925783/
}}</ref>
== Background =={{Main article|Complex Canvas Avionics}} == Challenges ===== Performance ==={{See also|Canvas_Development#Property_I.2FO_observations|Canvas_MapStructure#Performance}}Nasal as such is fast, and compared with the cost of rendering the terrain, rendering a canvas display is fast on the GPU (you can test by rendering but not updating a canvas display), and unless you're doing something very inefficient, calculating a display but not writing it to the property tree is fast (you can test this by disabling the write commands). It's the property I/O which you need to structure well, and then canvas will run fast. And of course the complexity of your underlying simulation costs - if you run a thermal model underneath to get real temperature reading, it costs more than inventing the numbers. But that has nothing to do with canvas. <ref>{{cite web |url = https://sourceforge.net/p/flightgear/mailman/message/35926343/ |title = <nowiki> Re: [Flightgear-devel] RFD: FlightGear and the changing state of air navigation </nowiki> |author = <nowiki> Thorsten Renk </nowiki> |date = Jul 4th, 2017 |added = Jul 4th, 2017 |script_version = 0.40 }}</ref> 
it's a lot of work to code all these displays which someone has to do, but there's no reason to assume it'd be hopeless performance-wise.<ref>{{cite web
}}</ref>
we need to be realistic here: The G1000 is a fairly significant piece of computer hardware that we're going to emulate. It's not going to be "free" particularly for those on older hardware that's already struggling. However, hopefully we can offload a chunk of the logic (route management, autopilot/flight director) to the core, and do things like offline generation of terrain maps to minimie minimize the impact.<ref>{{cite web
|url = https://sourceforge.net/p/flightgear/mailman/message/35926745/
|title = <nowiki> Re: [Flightgear-devel] RFD: FlightGear and the changing state of
}}</ref>
== Background ==
{{Main article|Complex Canvas Avionics}}
 
== Challenges ==
=== Route Manager ===
that's exactly the kind of device James hopes the new code can support. He's read the G1000 pilot's manual, and *thinks* that nearly all the functions can be provided by the current GPS code It would be great if people could look over the current GPS features and indicate any pieces you think might be missing - additional commands, additional search features, extra data, or anything really. <ref>{{cite web
}}</ref>
== Plan ==Stuart has been in contact everyone agrees we would like to add airspace data - what we’re missing is a suitable data source with the author (Sébastien MARQUE) of the ZKV-1000correct license. While he himself doesn't plan to implement Torsten found a G1000, he's very happy raster-based source but for it to be developed in that direction. Stuart's broad plan is to make a copy of this wider use in fgdata or fgaddon, and use it as the basis for a G1000sim we really need vector data, taking the opportunity to use [[Canvas MFD Framework|Richard's MFD code]] and making as generic pages as possible for other glass cockpit applicationsso we can render it ourselves directly.<ref>{{cite web |url = https://sourceforge.net/p/flightgear/mailman/message/3597646536178857/ |title = <nowiki> Re: [Flightgear-devel] G1000 [flightgear/simgear] Nasal regex patch </nowiki> |author = <nowiki> James Turner </nowiki> |date = Jan 5th, 2018 |added = Jan 5th, 2018 |script_version = 0.36 }}</ref> For airspace data we could use [https://openflightmaps.org/ https://openflightmaps.org/] . It provides community created navigation data for many countries in (was currently only) Europe with a free license.<ref>{{cite web |url = https://forum.flightgear.org/viewtopic.php?p=326105#p326105 |title = <nowiki> Re: Nasal property lookup performance) Canvas G1000 </nowiki> |author = <nowiki> Stuart Buchanan TheTom </nowiki> |date = Aug 1stJan 9th, 2017 2018 |added = Aug 1stJan 9th, 2017 2018 |script_version = 0.40 36
}}</ref>
 
we definitely want vector data. Stuart is hoping that we might convince the source of the raster data we're using at present to provide it as raw vector data, but we haven't had any luck so far.<ref>{{cite web
|url = https://forum.flightgear.org/viewtopic.php?p=326201&sid=137f64d32b770e50a3c4061be42ce28a#p326201
|title = <nowiki> Re: Canvas G1000 </nowiki>
|author = <nowiki> stuart </nowiki>
|date = Jan 10th, 2018
|added = Jan 10th, 2018
|script_version = 0.36
}}</ref>
 
== Airport Data (US - only )==
At least for the US, all required information is available in the form of regularly updated UDFF files:
* https://www.ngs.noaa.gov/AERO/aero.html
* https://www.ngs.noaa.gov/AERO/uddf/WESTERN-PACIFIC/CALIFORNIA/SFO__03B.F77
* https://www.ngs.noaa.gov/AERO/annof_7.pdf
 
It would seem relatively straightforward to provide a scripted parser to create the corresponding charts procedurally.
As a matter of fact, this could even be done in a background thread or using a separate Python script, i.e. if we wanted to ship pre-created imagery as part of fgdata.
 
However, if the built-in Canvas system is extended to provide these charts, [[Phi]] could also be entirely self-contained by rendering the same airport charts without having to depend on external data sources.
 
== Layers ==
 
{{See also|Canvas_Sandbox#CanvasShapefile}}
Following is the list of layers displayed by the G1000 system (see page 153 of the 190-00498-07 Rev. A), and mapping to the equivalent MapStructure Layer.
Many of these would also be good to have for other avionics/GUI dialogs, including the NavDisplay framework, which is currently re-implementing this functionality separately, i.e. not yet using MapStructure.
 
Following is the list of layers displayed by the G1000 system, based on the Garmin G1000 Integrated Flight Deck Pilot's Guide for the Cessna Nav III,<ref name="Pilot's Guide" /> page 153, and the mapping to the equivalent MapStructure Layer.
 
Richard mentioned that if he were to implement approach plates in the EFB he'd probably use raster images provided via http and provide an http service within FG to do this, or to allow the EFB to use any other external web service. Other content for the EFB could be also provided as SVG via http.<ref>{{cite web |url = https://forum.flightgear.org/viewtopic.php?p=259194#p259194 |title = <nowiki> Re: </nowiki> |author = <nowiki> Richard </nowiki> |date = Sep 29th, 2015 |added = Sep 29th, 2015 |script_version = 0.36 }}</ref>
{| class="wikitable"
|-
! Layer !! [[Canvas MapStructure Layers|MapStructure Layer ]] !! Status !! Page in <ref name="Pilot's Guide" /> || Notes
|-
| Flight Plan Route Lines || {{MapStructure_File|name=RTE| type=lcontroller}} || Requires styling || 190 ||
|-
| Flight Plan Route Waypoints || {{MapStructure_File|name=WPT| type=lcontroller}} || Requires styling || 190 ||
|-
| Rivers/Lakes || {{MapStructure_File|name=VFRChart|type=lcontroller}} || || 148 || Currently using downloaded raster from web. Perhaps generate similarly to Atlas<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>, or could be vector data from scenery. {{AtlasVsCanvasCameras}}
|-
| Topography Data || {{MapStructure_File|name=VFRChart| type=lcontroller}} || Synthetic || 145 || Height-map at chart-resolution. Perhaps generate similarly to Atlas? {{AtlasVsCanvasCameras}}
|-
| International Borders || || || 148 || Vector data from scenery?
|-
| Track Vector || || || 156 || Forward looking display of track. Look-ahead time selectable.
|-
| Navigation Range Ring || || || 159 || Straightforward extension of {{MapStructure_File|name=APS|type=lcontroller}}.
|-
| Fuel Range Ring || || || 159 || Straightforward extension of {{MapStructure_File|name=APS|type=lcontroller}}.
|-
| Terrain Data || || || 364 || Should be straightforward, with exception of obstacles. [[Spoken GCA|Profile view]] also required.
|-
| Traffic || {{MapStructure_File|name=TFC|type=lcontroller}} || || 394, 423 || Various options, each with different iconography and data displayed.
|-
| Airways || {{MapStructure_File|name=VFRChart|type=lcontroller}} || || 154 || Needs to be replaced with vector data
|-
| NEXRAD || || || 282 || Heaps of weather data with complex symbology.
|-
| XM Lightning Data || {{MapStructure_File|name=WXR| type=lcontroller}} || Change to symbol for lightning? || 294 || Optional
|-
| Airports || {{MapStructure_File|name=APT| type=lcontroller}}, {{MapStructure_File|name=RWY| type=lcontroller}} || Require re-style based on size || 149, 163 ||
|-
| Runway Labels || {{MapStructure_File|name=RWY|type=lcontroller}} || || 148 || Needs to be added to {{MapStructure_File|name=RWY|type=symbol}}. Should be straightforward
|-
| Restricted || {{MapStructure_File|name=OpenAIP|type=lcontroller}} || || 182 || {{NeedVectorData}}
|-
| MOA (Military) || {{MapStructure_File|name=OpenAIP|type=lcontroller}} || || 182 || {{NeedVectorData}}
|-
| User Waypoints || || ||
|-
| Latitude/Longitude Grid || {{MapStructure_File|name=GRID|type=lcontroller}} || ||
|-
| NAVAIDs || {{MapStructure_File|name=APT| type=lcontroller}}, {{MapStructure_File|name=VOR| type=lcontroller}}, {{MapStructure_File|name=FIX|type=lcontroller}}, {{MapStructure_File|name=NDB|type=lcontroller}} || APT, requires styling || 162 ||
|-
| Class B Airspaces/TMA || {{MapStructure_File|name=OpenAIP|type=lcontroller}} || || 182 || {{NeedVectorData}}
|-
| Class C Airspaces/TCA || {{MapStructure_File|name=OpenAIP|type=lcontroller}} || || 182 || {{NeedVectorData}}
|-
| Class D Airspaces || {{MapStructure_File|name=OpenAIP|type=lcontroller}} || || 182 || {{NeedVectorData}}
|-
| Other Airspaces/ADIZ || {{MapStructure_File|name=OpenAIP|type=lcontroller}} || || 182 || {{NeedVectorData}}
|-
| TFRs || || || 310 ||
|-
| Obstacles || {{MapStructure_File|name=OpenAIP|type=lcontroller}} || || 182 || {{NeedVectorData}}
|-
| Land/Country Text || || || 148 || Currently using raster data from web. Replace with {{MapStructure_File|name=POI|type=lcontroller}}?
|-
| Cities || {{MapStructure_File|name=VFRChart|type=lcontroller}} || || 148 || Currently using raster data from web. Perhaps generate similarly to Atlas, or could be vector data from scenery. {{AtlasVsCanvasCameras}}
|-
| Roads || {{MapStructure_File|name=VFRChart|type=lcontroller}} || || 148 || Currently using raster data from web. Requires vector data from scenery
|-
| Railroads || {{MapStructure_File|name=VFRChart|type=lcontroller}} || || 148 || Currently using raster data from web. Requires vector data from scenery
|-
| State/Province Boundaries || {{MapStructure_File|name=VFRChart|type=lcontroller}} || || 148 || Currently using raster data from web. Requires vector data from scenery
|-
| River/Lake Names || {{MapStructure_File|name=VFRChart|type=lcontroller}} || || 148 || Currently using raster data from web. Replace with {{MapStructure_File|name=POI|type=lcontroller}}?|-| Selected Altitude Intercept Arc || || || 161 || Simple extention to APS|-| SafeTaxi (Optional) || {{MapStructure_File|name=RWY|type=lcontroller}}, {{MapStructure_File|name=TAXI|type=lcontroller}} || || 493 || We don't currently have the data to display taxiway identifier or holding points|-| ChartView (Optional) || || || 503 || [[Canvas_Sandbox#CanvasPDF|Rendering of PDFs.]] Might be possible to integrate with NaviGraph chart data?|-| FliteChart (Optional) || || || 521 || [[Canvas_Sandbox#CanvasPDF|Rendering of PDFs.]] Might be possible to integrate with NaviGraph chart data?
|}
== Status Existing work =={{Main articleSee also|Canvas_News#G1000_.26_MapStructure_improvements}}Stuart wants to build a set of layers for a G1000 implementation - the canvas map UI is really just a way to display it. <ref>{{cite web |url = https://sourceforge.net/p/flightgear/mailman/message/36059733/ |title = <nowiki> Re: [Flightgear-devel] Complex Canvas MapLayer for OpenStreetMap, OpenAIP, VFR Sectionals </nowiki> |author = <nowiki> Stuart Buchanan </nowiki> |date = Oct 1st, 2017 |added = Oct 1st, 2017 |script_version = 0.40 Avionics}}</ref>
When he gets the chance he's going to write a quick wiki article on the MapStructure layers that need to be implemented for the G1000 implementation. That might help to coordinate efforts as well.<ref>{{cite web=== Avionics / Cockpits === * [[User:Zakharov/zkv1000 installation guide|url = zkv1000]] see [https://sourceforgeforum.net/p/flightgear.org/mailman/message/36061041/ viewtopic.php?f=14&t=32056] |title = <nowiki> Re: * [Flightgear-devel[Extra500]] Canvas MapLayer for OpenStreetMap, OpenAIP, VFR Sectionals </nowiki> |author = <nowiki> Stuart Buchanan </nowiki> |date = Oct 2nd, 2017 |added = Oct 2nd, 2017 |script_version = 0.40 }}</ref>Avidyne Entegra R9000
== Existing work = Nasal / Canvas ===* [[Canvas MFD Framework]]* MapStructure* MapStructure Layers* [[Howto:Creating a Canvas GUI Widget]]* [[Emesary]]
=== C++ ===
* [[Atlas]] map creation
* [[Howto:Canvas View Camera Element|Synthetic Vision]] element for rendering viewmgr views to a Canvas
* [[Canvas_Sandbox#CanvasPDF|Canvas PDF]] element - for rendering PDF files (think EFB functionality)
== Structure Possible Work == === Architectural TODO List ===This is a short list of architectural improvements I've noted during development that need to be revisited:* Use NavMap for MFD Navigation Map, DirectTo, Nearest, Information pages.* Separate out the HSI, tapes from the PFD and make them generic MFD UI Elements* Improve the performance of the maps, perhaps using a cache for queries, definitely by more aggressive clipping of the SlippyMap layers based on map size. The layers table shown above mentions a few limitations and ideas, such as:=== Nasal/Canvas ===* <image> tag support for svg.nas (patch: [http://wiki.flightgear.org/Howto:Extend_the_Canvas_SVG_module])* MapStructure: [[MapStructure_Optimizations#Allocating_selectable_ranges_into_groups|Allocating selectable ranges into Canvas groups]] === C++ ===* fix up [[Canvas_MapStructure#Performance|projection issues]], and adopt Gijs' [[Canvas_Development#Projections|projection handling code]] for the hard-coded PUI [[Map]], to get rid of the standard Sanson-Flamsteed projection * adding a profile view, probably in conjunction with terrain sampling* using atlas code to generate heightmaps/topography* adding ESRI shapefile support to the Canvas system* adding PDF rendering support the Canvas system == Design == The broad structure of the Nasal files in Aircaft/Instruments-3d/FG1000/Nasal is as follows: * MFD.nas - top level MFD device, loads the other Nasal files (likely to be moved elsewhere later) and pages.* PageGroupControllers.nas - controller for the Page Group display in the bottom right of the MFD, controlled by the FMS knob, and which allows selection between different page groups and individual pages.* [PageName]/[PageName].nas - MFD page, inheriting from the MFDPage.nas. Creates any required MapStructure and hierarchy of softkeys.* [PageName]/[PageName]Controller.nas - Controller for the MFD page and the MapStructure layers, inheriting from MFDPageController.nas* [PageName]/[PageName]Style.nas - Style controls for the MapStructure layers for the given Page.* [PageName]/[PageName]Options.nas - Options for the MapStructure layers for the given Page. Key design notes:* Most of the underlying Canvas [[MapStructure]] layers are now written (though they require styling, and/or would benefit from replacement with vector data). * [[Emesary]] IPC framework is used to link between the MFD and underlying simulation state. This should make it easy to run the MFD on a separate FG instance, and provides a good demarkation between the individual aircraft systems and the FG1000 itself. * Various underlying UI classes are used to handle highlighting, selection and scrolling of fields. See [[Canvas MFD Framework]] for details of the elements now supported.
== Resources ==
 
{{#ev:youtube|I0y6p0ct1m0}}
== Related ==
=== Commits ===
This section is intended to help keep track of related fgdata commits, so that if/when the project should stall, people can more easily look up related changes.
 
 
* {{fgdata commit|da252c8a18fe2ce88066c051f6df588639377792|text=Initial Direct To page}}(01/2018)
* {{fgdata commit|0c4544c1e1788f3396330c86016b66df8643fd3b|text=Add Config Store and MFD Header display.}}(01/2018)
* {{fgdata commit|9bd10f8273a6e64b12b9a034ca4952d87090f921|text=SVG MFD UI from miChat}}(01/2018)
* {{fgdata commit|f6f5efe9f442ff058d9d425d85337139b2a9bf1f|text=Use Emesary interface rather than airportinfo()}}(01/2018)
* {{fgdata commit|d306e7ba100840f5c3909123a383b19f7e7d7540|text=Set standby COM frequency from Airport pages}}(01/2018)
* {{fgdata commit|cbb281759cd3f2b830bffdd12ba72d456996a13a|text=NAV/COM Radio support}}(01/2018)
* {{fgdata commit|a25c66850a93f0ae7a6f7ad8769680c1fba99887|text=Add full set of hardkeys to fg1000 PUI dialog.}}(01/2018)
* {{fgdata commit|ab8774a3e0aa3909ad284a65194f5d80dc097c6e|text=extend MFDPageController to handle Emesary register}}(01/2018)
* {{fgdata commit|73424c1791242e053efcdac37a7dd3b66226387b|text=Update NAV/COMM frequencies from properties}}(01/2018)
* {{fgdata commit|ad77dc2f9cd2a1e1ebd5efd4226cbfbf3a522008|text=Modify FG1000 EIS to use Emesary}}(01/2018)
* {{fgdata commit|9eb91171b4689b29910db06757bc47767ff59d2c|text=FG1000 Nearest Airports page}}(01/2018)
* {{fgdata commit|475fd505859b7841e29de725d4c1c39db7ad4ee5|text=PFD UI Elements and NearestAirports page}} (12/2017)
* {{fgdata commit|d0203549e833b32b719697b3a2c2a63e16fcef16|text=Add AirportInfo and template pages for FG1000}} (12/2017)
* {{fgdata commit|3d31775ff36bf3aa08a929992b70f32f2a525509|text=Initial commit of FG1000 MFD}} (11/2017)
 
MapStructure related:
 
* {{fgdata commit|4bd57492f454a05f725e6fe5a80dc246cb5e5e0f|text=GRID layer}} (10/2017)
* {{fgdata commit|d84c527ca747dd6bbd9634507f0664ff3631bdef|text=RWY, TAXI, TWR, PARKING}} (10/2017)
* {{fgdata commit|e38ec03c609b882664d0496932709aa623e486cb|text=STAMEN}} (10/2017)
* {{fgdata commit|2fbc1dc491da867e0fd4f8fc810c5cddd80ced1f|text=VFRChart}} (09/2017)
* {{fgdata commit|85b7665c19ebaae02d746fef53f25f8d8974eb13|text=OSM and OpenAIP}} (09/2017)
 
=== References ===
{{Appendix}}
 
[[Category:Canvas]]

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