Re: [Flightgear-devel] Displaying Multiple Views/Using cockpit controls
--- Ryan Kellar wrote: snip My questions are is there a way to display a simultaneous panoramic view using the three computers each running an instance of FlightGear and if so, Have a look at the I/O subsystem - there is a README.IO file somewhere in the installation. You can write the FG state information in a native format to a socket on your master computer, then read the socket on the slave display computers. -Stuart ___ To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] Displaying Multiple Views/Using cockpit controls
Ryan Kellar wrote: I am new to using FlightGear and am currently working on a project that involves a flight simulator with a Cessna cockpit and a screen that is divided into 3 sections in sort of a wrap around(not fully, but tilted to give a more panoramic view. Each board is displayed using a different projector run by three separate computers. Also, the cockpit controls are being read in as voltages to a separate computer. I am completely new to flight simulation and this software, and have some C++ software experience but never any software hardware integration so I’m a little lost. My questions are is there a way to display a simultaneous panoramic view using the three computers each running an instance of FlightGear and if so, how? Yes, mutliple displays are well supported in FlightGear. There is a document called README.IO that touches on this. If you need more help, just ask. Note to document writers: this might be a good subject to add to the manual. Also, how can I go about reading in the cockpit controls(which are now being read as voltage values) into the program to control the airplane? If your hardware already exists, then this is something you will likely have to figure out on your own. You will need to write some glue code that can read the voltage values and translate them into a control input position. FlightGear uses normalized control input positions so yoke, wheel, rudder pedals, etc. are mapped to [-1, 1]. Throttle, flaps, mixture, etc. are mapped to [0,1]. Once you are able to read in your voltage values and normalize them, it is pretty straightforward to send that data over to FlightGear. It's possible to embed some code into FlightGear, or you could just write a separate application that sends the data to FG over the network. Regards, Curt. -- Curtis Olsonhttp://www.flightgear.org/~curt HumanFIRST Program http://www.humanfirst.umn.edu/ FlightGear Project http://www.flightgear.org Unique text:2f585eeea02e2c79d7b1d8c4963bae2d ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] Displaying Multiple Views/Using cockpit controls
Curtis L. Olson wrote: Ryan Kellar wrote: I am new to using FlightGear and am currently working on a project that involves a flight simulator with a Cessna cockpit and a screen that is divided into 3 sections in sort of a wrap around(not fully, but tilted to give a more panoramic view. Each board is displayed using a different projector run by three separate computers. Also, the cockpit controls are being read in as voltages to a separate computer. I am completely new to flight simulation and this software, and have some C++ software experience but never any software hardware integration so I’m a little lost. My questions are is there a way to display a simultaneous panoramic view using the three computers each running an instance of FlightGear and if so, how? Yes, mutliple displays are well supported in FlightGear. There is a document called README.IO that touches on this. If you need more help, just ask. Note to document writers: this might be a good subject to add to the manual. Also, how can I go about reading in the cockpit controls(which are now being read as voltage values) into the program to control the airplane? How are the voltages being read? Is there some sort of circuit and/or board in your computer that senses the voltage? A little more info on that topic would be helpful. If your hardware already exists, then this is something you will likely have to figure out on your own. You will need to write some glue code that can read the voltage values and translate them into a control input position. FlightGear uses normalized control input positions so yoke, wheel, rudder pedals, etc. are mapped to [-1, 1]. Throttle, flaps, mixture, etc. are mapped to [0,1]. Once you are able to read in your voltage values and normalize them, it is pretty straightforward to send that data over to FlightGear. It's possible to embed some code into FlightGear, or you could just write a separate application that sends the data to FG over the network. If you need some electronics to convert from analog to digital there are a number of products/boards to do the trick. Phidget now offers some boards that are supposed to work with Linux, you might check out www.opencockpits.org over in Spain (these are MS Windows based ATM), or www.lfstech.com (linux based) for more info on the topic. As Curt noted, you will then need some code to take the digital output of the boards and input that to the FG program. Regards John W. ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] Displaying Multiple Views/Using cockpit controls
Curtis L. Olson wrote: Ryan Kellar wrote: I am new to using FlightGear and am currently working on a project that involves a flight simulator with a Cessna cockpit and a screen that is divided into 3 sections in sort of a wrap around(not fully, but tilted to give a more panoramic view. Each board is displayed using a different projector run by three separate computers. Also, the cockpit controls are being read in as voltages to a separate computer. I am completely new to flight simulation and this software, and have some C++ software experience but never any software hardware integration so I’m a little lost. My questions are is there a way to display a simultaneous panoramic view using the three computers each running an instance of FlightGear and if so, how? OK, had an interrupt. To finish the topic... If the separate computer has the prerequiste interface hardware you have a couple of options: 1) Modify the FG source code to read and convert the voltage values into control inputs and run that as the primary server displaying the center screen and run the left and right as slaves as discussed in the README docs, 2) Connect the fourth machine with the control inputs via a LAN using one of the socket protocol defined in the Network directory, or 3) Define your own protocol and socket code. The existing source provides a fairly good template and structure to help you. Regards John W. ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] Displaying Multiple Views/Using cockpit controls
--- Curtis L. Olson wrote: Yes, mutliple displays are well supported in FlightGear. There is a document called README.IO that touches on this. If you need more help, just ask. Note to document writers: this might be a good subject to add to the manual. Hint taken ;). I was thinking of writing a section on various features such as the Nimitz, multiplayer and multiple displays anyway. Unfortunately I only have a single PC, so I'll be writing blind. Would you be able to review my text for me? -Stuart ___ WIN ONE OF THREE YAHOO! VESPAS - Enter now! - http://uk.cars.yahoo.com/features/competitions/vespa.html ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] Displaying Multiple Views/Using cockpit controls
Buchanan, Stuart wrote: --- Curtis L. Olson wrote: Yes, mutliple displays are well supported in FlightGear. There is a document called README.IO that touches on this. If you need more help, just ask. Note to document writers: this might be a good subject to add to the manual. Hint taken ;). I was thinking of writing a section on various features such as the Nimitz, multiplayer and multiple displays anyway. Unfortunately I only have a single PC, so I'll be writing blind. Would you be able to review my text for me? Adding sections for some of our more interesting or more asked about features would be great. Certainly I would be happy to review your text ... Curt. -- Curtis Olsonhttp://www.flightgear.org/~curt HumanFIRST Program http://www.humanfirst.umn.edu/ FlightGear Project http://www.flightgear.org Unique text:2f585eeea02e2c79d7b1d8c4963bae2d ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] Displaying Multiple Views/Using cockpit controls
On Tuesday 29 November 2005 21:41, Buchanan, Stuart wrote: Hint taken ;). I was thinking of writing a section on various features such as the Nimitz, multiplayer and multiple displays anyway. Unfortunately I only have a single PC, so I'll be writing blind. Would you be able to review my text for me? Rather than re-inventing the wheel, why not take the carrier-howto and multiplayer howto from the wiki and include them (editing as you see fit for style etc)? You don't need more than one PC to experience multiplayer of course, but I'm sure you knew that. A section on multiple displays would be of interest to quite a few people I think - it comes up now and again on the IRC channel and isn't something I have experience of with FGFS. AJ ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] Displaying Multiple Views/Using cockpit controls
--- AJ MacLeod wrote: Rather than re-inventing the wheel, why not take the carrier-howto and multiplayer howto from the wiki and include them (editing as you see fit for style etc)? Absolutely - I just had a look at the Carrier HowTo on the Wiki and it looks like exactly what is required. I assume no-one will mind. Of course, any changes to the Getting Started Guide will only be present in the next release for most users, so we'll have a fair few questions until then... -Stuart ___ Yahoo! Messenger - NEW crystal clear PC to PC calling worldwide with voicemail http://uk.messenger.yahoo.com ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] Displaying Multiple Views/Using cockpit controls
On Tuesday 29 November 2005 22:32, Buchanan, Stuart wrote: Absolutely - I just had a look at the Carrier HowTo on the Wiki and it looks like exactly what is required. I assume no-one will mind. Yes, no-one is fine with that ;-) I don't think Vivian is likely to sue you for breach of copyright over his additions either... Of course, any changes to the Getting Started Guide will only be present in the next release for most users, so we'll have a fair few questions until then... Of course - which is where the Wiki comes in as I see it. Up to date information that's very easily kept that way... Not a replacement for the conventional docs, but I do feel the link on the FG website could be slightly more prominent - even folk who were actively looking for it have failed to find it. Cheers, AJ ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] Displaying Multiple Views/Using cockpit controls
Of course, any changes to the Getting Started Guide will only be present in the next release for most users, so we'll have a fair few questions until then... It's safe to assume that if users are smart enough to RTFM and see the local docs folder, then most of them will also check the up-to-date doc on the flightgear org site, provided the local version has a big notice that the most updated version is always to be found there. (Same as with HOWTOs). Another question is to how to drive the users to the guide in the first place, local or remote copy :-) V ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
[Flightgear-devel] Displaying Multiple Views/Using cockpit controls
Hi, I am new to using FlightGear and am currently working on a project that involves a flight simulator with a Cessna cockpit and a screen that is divided into 3 sections in sort of a wrap around(not fully, but tilted to give a more panoramic view. Each board is displayed using a different projector run by three separate computers. Also, the cockpit controls are being read in as voltages to a separate computer. I am completely new to flight simulation and this software, and have some C++ software experience but never any software hardware integration so Im a little lost. My questions are is there a way to display a simultaneous panoramic view using the three computers each running an instance of FlightGear and if so, how? Also, how can I go about reading in the cockpit controls(which are now being read as voltage values) into the program to control the airplane? If any additional information is needed please let me know as any help would be great. Thanks in advance. -Ryan ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
