Gerard ROBIN > > 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.
Such a tool would be indeed be useful - or the ability to reload .xml files on the fly such as that for gui or panel I don't know if that would be possible, but it would speed development of models no end. Vivian _______________________________________________ Flightgear-users mailing list [email protected] http://mail.flightgear.org/mailman/listinfo/flightgear-users 2f585eeea02e2c79d7b1d8c4963bae2d
