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📁 详细介绍Java 3D编程的一本电子书
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<TITLE>Motivation</TITLE>
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<CENTER>Using input devices</CENTER>
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<CENTER><B><I>Motivation</I></B></CENTER>
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<DD><LI>There are more input devices besides the mouse:
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	<DD><LI>Joysticks
	<DD><LI>Six-degree-of-freedom devices (6DOF) such as a Polhemus, Bird, 
		SpaceBall, Magellan, Ultrasonic tracker, <I>etc.</I>
	<DD><LI>Button, knobs, sliders
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<DD><LI>Read from any physical input device:
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	<DD><LI>Use the serial-device standard extension
	<DD><LI>Use the networking API
	<DD><LI>Use the Java-to-C interface
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<DD><LI>Java 3D provides an input device abstraction to:
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	<DD><LI>Encapsulate device-specific details behind a generic interface
	<DD><LI>Enable painless integration of new input devices within
		existing Java applications
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