Le mercredi 05 octobre 2005 à 08:33 +0100, Vivian Meazza a écrit : > Lee Elliott > > > > > > > So far, I'm just thinking in terms of a tool that would allow > > easier testing of animations - it's actually quite easy to find > > the correct values for the x, y & z axis by measuring the start > > and end-points of an aileron, for example, in your modelling app > > and then working out the appropriate values with a simple > > calculator. > > > > No need for a calculator in AC3D. Choose a vertex at either end point (there > may be convenient ones, or insert them into the object, or use a line > object). Use the <axis><x1-m>....<z1-m></axis> format. In AC3D select one > vertex, and press the '>' tile at 'Move to' (do NOT press 'Move to'). This > will display the acute xyz cords in the adjacent windows. You can now copy > and paste these values into the .xml animation, making sure that you > transpose the y and z values, and reverse the sign of the new y. Repeat for > the other vertex. And bingo. > > A little complicated but absolutely no computation involved, and the results > are very accurate. > > Giving away trade secrets here, but seeing as it's you Lee :-) > > Vivian > OK that is my usual procedure, which is working perfectly, The discussion for me is rather to check the result, mainly in complex hierarchy animations. when we have to animate the full components of a landing gear => extension, retract, compression with rotating and translating struts and hydraulic actuator; (and i have to calculate trigonometric formulation, and simulate on the "paper") I have got some experience with russian SU34 ac and Catalina PBY5 ac, both wonderful , and (i worry it) refurbished from MSFS world. I hope you will see some results with the Crusader i am building. Well ..... to check the animation results and to be sure i have not any mistake (and i have); Lee said it we have to try again and again with the real FG. A tool would be welcome. Lee suggested a tool which could be a simplified FG with an extract of the animations functions.
Cheers -- Gerard _______________________________________________ Flightgear-users mailing list [email protected] http://mail.flightgear.org/mailman/listinfo/flightgear-users 2f585eeea02e2c79d7b1d8c4963bae2d
