majky Posted December 25, 2020 Share Posted December 25, 2020 Hi Guys, I was wondering if it is possible to move axis origin of a model somehow, not by editing it, but rather via xml (?). so that movement aroud axis (pitch, bank, yaw) and focus point from an external view will be slightly moved as I desire. I have noticed, that moving focus point and rotation around axes is posible in "chase" view mode using the same combination of keys as is used to move eyepoint in VC. thanks for ideas majky Link to comment Share on other sites More sharing options...
lnuss Posted December 25, 2020 Share Posted December 25, 2020 Are you speaking of the CG of the aircraft or the actual "origin" for aircraft behavior, or are you asking about a repositioning of reference point for the "camera" with which you are viewing the aircraft? For the camera viewpoint there's information in the SDK about certain parameters in the aircraft config file that can be changed, individually for the cockpit cameras and the external ones. For moving the eyepoint base position there is an entry in aircraft.cfg in the [views] section that looks like: eyepoint = -0.55, -0.85, 3.20 //Longitudinal, Lateral, Vertical (feet) It is obviously different for each aircraft, but you can change the numbers and move the view around. And there are sections in the aircraft.cfg that can change aircraft behavior in many ways, in sections such as: [airplane_geometry] [contact_points] [weight_and_balance] [fuel] [flight_tuning] Also there are sections in the aircraft.cfg for [CameraDefinition.xxx] and there is also a cameras.cfg file where you can change values for additional camera types. All these .cfg files are in: C:\Users\YourUserName\AppData\Roaming\Microsoft\FSX on Windows 7. It might be a tad different in Win 10, but I don't have that. All of these are described in the SDK. If the above aren't what you need, then you'll need to describe what it is you actually want to accomplish. Larry N. As Skylab would say: Remember: Aviation is NOT an exact Science! Link to comment Share on other sites More sharing options...
majky Posted December 25, 2020 Author Share Posted December 25, 2020 no. I dont mean changing behavior (controls efectivnes, MOI, etc). I mean shifting model´s axis origin without editing the model itself.. Link to comment Share on other sites More sharing options...
Labrador315 Posted December 25, 2020 Share Posted December 25, 2020 Perhaps 'Radius editor' from the FS Developer site is what you are looking for. https://www.fsdeveloper.com/wiki/index.php?title=RADItor Link to comment Share on other sites More sharing options...
lnuss Posted December 25, 2020 Share Posted December 25, 2020 I mean shifting model´s axis origin without editing the model itself. And what is that intended to achieve? What is the problem you're trying to solve, the reason for doing this? What is the reason that you want to be "shifting model´s axis origin" in the first place? Is it the appearance of something, or a change in viewing capabilities, or...??? Or maybe Lab's suggestion does the job for you. Larry N. As Skylab would say: Remember: Aviation is NOT an exact Science! Link to comment Share on other sites More sharing options...
mrzippy Posted December 25, 2020 Share Posted December 25, 2020 no. I dont mean changing behavior (controls efectivnes, MOI, etc). I mean shifting model´s axis origin without editing the model itself.. Sounds like you are trying to setup different camera angles. Are you doing this for screenshots of your aircraft in an outside view? Tie goes to the runner, Larry! ;) Feets, don't fail me now! Still thinking about a new flightsim only computer! Link to comment Share on other sites More sharing options...
majky Posted December 25, 2020 Author Share Posted December 25, 2020 no, 'Radius editor' didnt do "the trick" :/ what Im trying to achieve is to set CoG of an empty machine into correct place. ie default Merlin has it wrong I belive (red "as is", green "should be") Link to comment Share on other sites More sharing options...
mrzippy Posted December 25, 2020 Share Posted December 25, 2020 (edited) Still curious as to "why"? In moving the CoG, what will that accomplish for you? It's always best to state what you are trying to do and why you are trying to do it. Are you trying to move the aircraft more towards the red line I've drawn for screenshots? Edited December 25, 2020 by mrzippy Still thinking about a new flightsim only computer! Link to comment Share on other sites More sharing options...
majky Posted December 25, 2020 Author Share Posted December 25, 2020 it will make me more happy and the sim more enjoyable ;) its no big deal, I was just wondering if it is possible.. Link to comment Share on other sites More sharing options...
mrzippy Posted December 25, 2020 Share Posted December 25, 2020 it will make me more happy and the sim more enjoyable ;) its no big deal, I was just wondering if it is possible.. ok, but IF you did actually move the CoG, your flight dynamics would go to "hell in a handbasket"! Still thinking about a new flightsim only computer! Link to comment Share on other sites More sharing options...
majky Posted December 25, 2020 Author Share Posted December 25, 2020 (edited) No I dindnt. and I dont intend to. Its really about axis origin in the model rather than CoG. ..and answer to your question (with the red line in picture) is yes :) Edited December 25, 2020 by majky Link to comment Share on other sites More sharing options...
mrzippy Posted December 25, 2020 Share Posted December 25, 2020 No I dindnt. and I dont intend to. Its really about axis origin in the model rather than CoG. ..and answer to your question (with the red line in picture) is yes :) Try using "Locked Spot" view. Much easier to adjust the image the way you want. Still thinking about a new flightsim only computer! Link to comment Share on other sites More sharing options...
Jim Robinson Posted December 25, 2020 Share Posted December 25, 2020 (edited) If you're trying to move the reference point of the 3D .mdl it appears this tool can do it for you: http://www.flightsim.com/vbfs/fslib.php?do=search&fname=model_slider.zip I played with it and here's the difference in MCX: I haven't flown the aircraft since, I worry this might affect everything in the aircraft.cfg that's defined as a relative position from the datum. I don't know if the "datum" is actually the reference point of the .mdl however, I've adjusted positions for this & that in the aircraft.cfg a million times but I've never messed with the reference point in the .mdl. Good luck, and make a backup, lol. EDIT: That appears to screw everything up. The VC would obviously need to be moved too which could be done but note the position of the nav lights, I'm thinking everything in the aircraft.cfg would need to be adjusted. Edited December 25, 2020 by Jim Robinson Link to comment Share on other sites More sharing options...
majky Posted December 25, 2020 Author Share Posted December 25, 2020 (edited) yes! It will absolutly mess up everything what is defined as a point (engines, lights, contact points...etc) in aircraft.cfg file. at least in X and Z (default Merlin). but I ll give it a try anyway... :) on a secont thought, If I will know exactly how much would I move in a certain axe, I will be able to adjust points quickly. either just the reference point or single points individualy. Edited December 25, 2020 by majky Link to comment Share on other sites More sharing options...
majky Posted December 25, 2020 Author Share Posted December 25, 2020 (edited) so I gave it a quick try and let me say: Thank you, mr. Robinson :) this is just what I was looking for. exterior model works perfectly, aircraft.cfg corrected within 1minute via adjusting reference point if knowing exact values. but still facing troubles with the crew :( need to check on that little more.... Edited December 25, 2020 by majky Link to comment Share on other sites More sharing options...
Jim Robinson Posted December 25, 2020 Share Posted December 25, 2020 I didn't try it but couldn't you just use the tool to make the exact same correction on the interior model too? So were you able to make all the adjustments in the acft.cfg just by changing: reference_datum_position = x, x, x ? Link to comment Share on other sites More sharing options...
majky Posted December 25, 2020 Author Share Posted December 25, 2020 (edited) sorry, I put it wrong. I ment interior of external model (the crew). VC works fine if making the same correction as with exterior model.. exactly, just X and Z adjustment in "reference_datum_position" default was: reference_datum_position = 30.5 , 0.0 , -3.0 [Feet] now is: reference_datum_position = 32.1 , 0.0 , -5.2 [Feet] (I moved the axis origin -0,5m aft and 0,7m up) Edited December 25, 2020 by majky Link to comment Share on other sites More sharing options...
Jim Robinson Posted December 25, 2020 Share Posted December 25, 2020 I see, the crew's part of the external model (in the 172 anyway). I assumed he was part of the interior model. I wonder why he didn't move with the rest of the exterior model? ...and his head ended up way off to the right? Maybe the prop did that? :) Link to comment Share on other sites More sharing options...
napamule2 Posted December 26, 2020 Share Posted December 26, 2020 To 'move' the 'viewpoint' (of pilot's head (eyes)) you adjust the x,y,z in (Views) section of aircraft cfg. The (views) section relates specifically to the VC 'view'. So adjust the values, reload the ac while in VC view, check view, and repeat until you get it where it 'should' be. SAVE the aircraft cfg after each adjust. Reloading ac produces the result of adjustment(s). Chuck B Napamule i7 2600K @ 3.4 Ghz (Turbo-Boost to 3.877 Ghz), Asus P8H67 Pro, Super Talent 8 Gb DDR3/1333 Dual Channel, XFX Radeon R7-360B 2Gb DDR5, Corsair 650 W PSU, Dell 23 in (2048x1152), Windows7 Pro 64 bit, MS Sidewinder Precision 2 Joy, Logitech K-360 wireless KB & Mouse, Targus PAUK10U USB Keypad for Throttle (F1 to F4)/Spoiler/Tailhook/Wing Fold/Pitch Trim/Parking Brake/Snap to 2D Panel/View Change. Installed on 250 Gb (D:). FS9 and FSX Acceleration (locked at 30 FPS). Link to comment Share on other sites More sharing options...
johnhinson Posted December 26, 2020 Share Posted December 26, 2020 The (views) section relates specifically to the VC 'view'. Not true sir. It applies to the pilot's view whatever type of cockpit you are using. John http://www.adventure-unlimited.org My co-pilot's name is Sid and he's a star! Link to comment Share on other sites More sharing options...
majky Posted December 26, 2020 Author Share Posted December 26, 2020 so to conclude things up: the "model_slider" is what I was looking for. it works pretty well except the crew models. I contacted the author, Mr Igami, asking questions about crew "messing up" and he was surprised that it worked with external model too, because the sw was made mainly to "align" VC with exterior model/eyepoint position. As of now he does not intend to fix the "crew issue" in the sw majky Link to comment Share on other sites More sharing options...
Jim Robinson Posted December 26, 2020 Share Posted December 26, 2020 Funny that the "crew" appears to be in the correct position in the MCX "after" screenshot I posted on the previous page, just not in the sim. Link to comment Share on other sites More sharing options...
majky Posted December 28, 2020 Author Share Posted December 28, 2020 yes, unfortunately MCX doesnt matter. sim does :( Link to comment Share on other sites More sharing options...
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