Re: [Flightgear-devel] state of heli simulation, bug in Yasim

2006-07-17 Thread Melchior FRANZ
* Maik Justus -- Sunday 16 July 2006 23:35: When flying backwards it shows a positive speed. Whoops, you are right. I seem to remember that this worked at some time, and I don't usually fly backwards with a helicopter (which I find quite dangerous), so I didn't notice. The ASI reads

[Flightgear-devel] ASI: YASim Systems/pitot bug ?

2006-07-17 Thread Melchior FRANZ
Seems that there are two bugs that make the bo105 ASI show positive speeds when flying backwards: 1. YASim delivers a positive /velocities/airspeed-kt on backward flight. 2. Systems/pitot.cxx wouldn't handle negative values correctly, anyway, as it squares the speed without checking for

Re: [Flightgear-devel] ASI: YASim Systems/pitot bug ?

2006-07-17 Thread Joacim Persson
On Mon, 17 Jul 2006, Melchior FRANZ wrote: Seems that there are two bugs that make the bo105 ASI show positive speeds when flying backwards: 1. YASim delivers a positive /velocities/airspeed-kt on backward flight. The second is easy to fix, but I have no idea about the first.

Re: [Flightgear-devel] ASI: YASim Systems/pitot bug ?

2006-07-17 Thread Melchior FRANZ
* Joacim Persson -- Monday 17 July 2006 10:00: On Mon, 17 Jul 2006, Melchior FRANZ wrote: 1. YASim delivers a positive /velocities/airspeed-kt on backward flight. The second is easy to fix, but I have no idea about the first. /orientation/side-slip-* So, as you didn't bother to

Re: [Flightgear-devel] ASI: YASim Systems/pitot bug ?

2006-07-17 Thread Vivian Meazza
Melchior Seems that there are two bugs that make the bo105 ASI show positive speeds when flying backwards: 1. YASim delivers a positive /velocities/airspeed-kt on backward flight. 2. Systems/pitot.cxx wouldn't handle negative values correctly, anyway, as it squares the speed

Re: [Flightgear-devel] ASI: YASim Systems/pitot bug ?

2006-07-17 Thread Melchior FRANZ
* Vivian Meazza -- Monday 17 July 2006 12:30: Melchior 2. Systems/pitot.cxx wouldn't handle negative values correctly, anyway, as it squares the speed without checking for negatives. A pitot tube compares the pressure along the _forward_ axis of the tube, I know, and this was not the

Re: [Flightgear-devel] ASI: YASim Systems/pitot bug ?

2006-07-17 Thread Joacim Persson
On Mon, 17 Jul 2006, Melchior FRANZ wrote: /orientation/side-slip-* So, as you didn't bother to write a whole sentence and leave the interpretation to the reader, which I find quite annoying, is it the following what you are trying to say: YASim is right, (airspeed-kt) is *not* meant to be

Re: [Flightgear-devel] ASI: YASim Systems/pitot bug ?

2006-07-17 Thread Melchior FRANZ
* Vivian Meazza -- Monday 17 July 2006 12:30: You need some other device to measure backward velocity. I implemented a radar doppler based drift indicator already a few weeks ago, thanks. But we are speaking about a display error in the ASI. m.

Re: [Flightgear-devel] ASI: YASim Systems/pitot bug ?

2006-07-17 Thread Andy Ross
Melchior FRANZ wrote: 1. YASim delivers a positive /velocities/airspeed-kt on backward flight. This strikes me as correct behavior. If you stick a pitot tube into an airstream backwards, you will get exactly the same reading as forward (well, modulo viscosity and mach effects). If what you

Re: [Flightgear-devel] A New Sun

2006-07-17 Thread Mark
Aurorae would be a nice addition indeed. Basically they could be simulated by using many squares with a translucent texture. Haven't had any problems with transparency or coloring of the sun, though. The problem Steve addressed is actually caused naturally because the graphics-cards cut out

[Flightgear-devel] a GL question

2006-07-17 Thread Vassilii Khachaturov
I'm trying some proof of concept code to implement the precipitation using textures. I'm sending out GL_QUADS mapped to some texture area each via 4 pairs of glTexCoord2f(...); glVertex3f(...);. Say the texture area is u,v within 0.0 to 1.0. Now I'd like the whole texture modulated in one of the 2

Re: [Flightgear-devel] pa24-250

2006-07-17 Thread Dave Perry
David Luff wrote: Check out the KLN89B with: $ fgfs --aircraft=c172p-2dpanel --geometry=1024x768 This is a panel-click only instrument - like the KAP140 it's not connected to the menu dialog. This is a reply to note from March 14. I finally got around to trying the KLN89B and was able