|Physics Lab Haptic Pendulum Project||A-Prompt||Music Notation|
|Interactive Learning Tools||MathML Project|
Java3D Haptics meeting 27 Oct 99
Present: DB, CR
Investigation, development, and testing has concluded:
- There is a problem when the time delta between updates in the physical model is reduced too low. The Java3D visual update appears to hog CPU cycles.
- The java wrapper "JHapi" (or "JNHapi"), has not been extended to include the Direct Input stuff yet.
- ALAF - Joseph popped over to my office and we spent about a day and a half integrating the Audio Swing Pluggable Look and Feel into the Swing based pendulum application. We succeeded. A side-effect of this endeavor was that it helped identify the source of the problem discussed in '1.' above.
- To solve the CPU hogging I will first attempt the follwing solution: I will increase the number of times per second the physical model (PM) is updated (this is required for a smooth haptic effect), and balance this by decreasing the number of times per PM update the visual model is updated. Refer to MOMMI for illustration.
- My preferrence is to have the release version of the DirectX v.70 before proceeding with extending the JNHapi class.
Our next meeting is 10 Nov 99 at 10:15am.
Morale is high and things are progressing well.
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