sensor.html

JAVA多媒体开发类库说明

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<A NAME="DEFAULT_SENSOR_READ_COUNT"><!-- --></A><H3>
DEFAULT_SENSOR_READ_COUNT</H3>
<PRE>
public static final int <B>DEFAULT_SENSOR_READ_COUNT</B></PRE>
<DL>
<DD>Default SensorRead object count (30); the number of SensorRead 
 objects constructed if no count is specified.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#javax.media.j3d.Sensor.DEFAULT_SENSOR_READ_COUNT">Constant Field Values</A></DL>
</DL>

<!-- ========= CONSTRUCTOR DETAIL ======== -->

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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TH>
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<A NAME="Sensor(javax.media.j3d.InputDevice)"><!-- --></A><H3>
Sensor</H3>
<PRE>
public <B>Sensor</B>(<A HREF="../../../javax/media/j3d/InputDevice.html" title="interface in javax.media.j3d">InputDevice</A>&nbsp;device)</PRE>
<DL>
<DD>Constructs a Sensor object for the specified input device using
 default parameters.  The default values are as follows:
 <ul>
 sensor read count : 30<br>
 sensor button count : 0<br>
 hot spot : (0,0,0)<br>
 predictor : PREDICT_NONE &mdash; <i>this attribute is unused</i><br>
 prediction policy : NO_PREDICTOR &mdash; <i>this attribute is unused</i><br>
 </ul>
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>device</CODE> - the Sensor's associated device.</DL>
</DL>
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<A NAME="Sensor(javax.media.j3d.InputDevice, int)"><!-- --></A><H3>
Sensor</H3>
<PRE>
public <B>Sensor</B>(<A HREF="../../../javax/media/j3d/InputDevice.html" title="interface in javax.media.j3d">InputDevice</A>&nbsp;device,
              int&nbsp;sensorReadCount)</PRE>
<DL>
<DD>Constructs a Sensor object for the specified input device using
 the specified number of SensorRead objects.
 Default values are used for all other parameters.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>device</CODE> - the Sensor's associated device<DD><CODE>sensorReadCount</CODE> - the number of SensorReads to associate with
 this sensor</DL>
</DL>
<HR>

<A NAME="Sensor(javax.media.j3d.InputDevice, int, int)"><!-- --></A><H3>
Sensor</H3>
<PRE>
public <B>Sensor</B>(<A HREF="../../../javax/media/j3d/InputDevice.html" title="interface in javax.media.j3d">InputDevice</A>&nbsp;device,
              int&nbsp;sensorReadCount,
              int&nbsp;sensorButtonCount)</PRE>
<DL>
<DD>Constructs a Sensor object for the specified input device using
 the specified number of SensorRead objects and number of buttons.
 Default values are used for all other parameters.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>device</CODE> - the Sensor's associated device<DD><CODE>sensorReadCount</CODE> - the number of SensorReads to associate with
 this sensor<DD><CODE>sensorButtonCount</CODE> - the number of buttons associated with each
 sensor read</DL>
</DL>
<HR>

<A NAME="Sensor(javax.media.j3d.InputDevice, javax.vecmath.Point3d)"><!-- --></A><H3>
Sensor</H3>
<PRE>
public <B>Sensor</B>(<A HREF="../../../javax/media/j3d/InputDevice.html" title="interface in javax.media.j3d">InputDevice</A>&nbsp;device,
              <A HREF="../../../javax/vecmath/Point3d.html" title="class in javax.vecmath">Point3d</A>&nbsp;hotspot)</PRE>
<DL>
<DD>Constructs a Sensor object for the specified input device using
 the specified hotspot.
 Default values are used for all other parameters.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>device</CODE> - the Sensor's associated device<DD><CODE>hotspot</CODE> - the Sensor's hotspot defined in its local coordinate
 system</DL>
</DL>
<HR>

<A NAME="Sensor(javax.media.j3d.InputDevice, int, javax.vecmath.Point3d)"><!-- --></A><H3>
Sensor</H3>
<PRE>
public <B>Sensor</B>(<A HREF="../../../javax/media/j3d/InputDevice.html" title="interface in javax.media.j3d">InputDevice</A>&nbsp;device,
              int&nbsp;sensorReadCount,
              <A HREF="../../../javax/vecmath/Point3d.html" title="class in javax.vecmath">Point3d</A>&nbsp;hotspot)</PRE>
<DL>
<DD>Constructs a Sensor object for the specified input device using
 the specified number of SensorRead objects and hotspot.
 Default values are used for all other parameters.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>device</CODE> - the Sensor's associated device<DD><CODE>sensorReadCount</CODE> - the number of SensorReads to associate with
 this sensor<DD><CODE>hotspot</CODE> - the Sensor's hotspot defined in its local coordinate
 system</DL>
</DL>
<HR>

<A NAME="Sensor(javax.media.j3d.InputDevice, int, int, javax.vecmath.Point3d)"><!-- --></A><H3>
Sensor</H3>
<PRE>
public <B>Sensor</B>(<A HREF="../../../javax/media/j3d/InputDevice.html" title="interface in javax.media.j3d">InputDevice</A>&nbsp;device,
              int&nbsp;sensorReadCount,
              int&nbsp;sensorButtonCount,
              <A HREF="../../../javax/vecmath/Point3d.html" title="class in javax.vecmath">Point3d</A>&nbsp;hotspot)</PRE>
<DL>
<DD>Constructs a Sensor object for the specified input device using
 the specified number of SensorRead objects, number of buttons, and
 hotspot.
 Default values are used for all other parameters.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>device</CODE> - the Sensor's associated device<DD><CODE>sensorReadCount</CODE> - the number of SensorReads to associate with
 this sensor<DD><CODE>sensorButtonCount</CODE> - the number of buttons associated with each
 sensor read<DD><CODE>hotspot</CODE> - the Sensor's hotspot defined in its local coordinate
 system</DL>
</DL>

<!-- ============ METHOD DETAIL ========== -->

<A NAME="method_detail"><!-- --></A>
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Method Detail</B></FONT></TH>
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</TABLE>

<A NAME="setPredictor(int)"><!-- --></A><H3>
setPredictor</H3>
<PRE>
public void <B>setPredictor</B>(int&nbsp;predictor)</PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>As of Java 3D version 1.4, prediction is not a
 supported feature.</I>
<P>
<DD>Sets the type of predictor to use with this sensor.
 Since prediction is not implemented (and never has been), this
 attribute has no effect.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>predictor</CODE> - predictor type one of PREDICT_NONE or
 PREDICT_NEXT_FRAME_TIME
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if an invalid predictor type
  is specified.</DL>
</DD>
</DL>
<HR>

<A NAME="getPredictor()"><!-- --></A><H3>
getPredictor</H3>
<PRE>
public int <B>getPredictor</B>()</PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>As of Java 3D version 1.4, prediction is not a
 supported feature.</I>
<P>
<DD>Returns the type of predictor used by this sensor.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the predictor type.</DL>
</DD>
</DL>
<HR>

<A NAME="setPredictionPolicy(int)"><!-- --></A><H3>
setPredictionPolicy</H3>
<PRE>
public void <B>setPredictionPolicy</B>(int&nbsp;policy)</PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>As of Java 3D version 1.4, prediction is not a
 supported feature.</I>
<P>
<DD>Sets the prediction policy use by this sensor.
 Since prediction is not implemented (and never has been), this
 attribute has no effect.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>policy</CODE> - prediction policy one of NO_PREDICTOR, HEAD_PREDICTOR,
 or HAND_PREDICTOR
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if an invalid prediction policy
  is specified.</DL>
</DD>
</DL>
<HR>

<A NAME="getPredictionPolicy()"><!-- --></A><H3>
getPredictionPolicy</H3>
<PRE>
public int <B>getPredictionPolicy</B>()</PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>As of Java 3D version 1.4, prediction is not a
 supported feature.</I>
<P>
<DD>Returns the prediction policy used by this sensor.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the prediction policy.</DL>
</DD>
</DL>
<HR>

<A NAME="setHotspot(javax.vecmath.Point3d)"><!-- --></A><H3>
setHotspot</H3>
<PRE>
public void <B>setHotspot</B>(<A HREF="../../../javax/vecmath/Point3d.html" title="class in javax.vecmath">Point3d</A>&nbsp;hotspot)</PRE>
<DL>
<DD>Set the sensor's hotspot in this sensor's coordinate system.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>hotspot</CODE> - the sensor's new hotspot</DL>
</DD>
</DL>
<HR>

<A NAME="getHotspot(javax.vecmath.Point3d)"><!-- --></A><H3>
getHotspot</H3>
<PRE>
public void <B>getHotspot</B>(<A HREF="../../../javax/vecmath/Point3d.html" title="class in javax.vecmath">Point3d</A>&nbsp;hotspot)</PRE>
<DL>
<DD>Get the sensor's hotspot in this sensor's coordinate system.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>hotspot</CODE> - the variable to receive the sensor's hotspot</DL>
</DD>
</DL>
<HR>

<A NAME="setDevice(javax.media.j3d.InputDevice)"><!-- --></A><H3>
setDevice</H3>
<PRE>
public void <B>setDevice</B>(<A HREF="../../../javax/media/j3d/InputDevice.html" title="interface in javax.media.j3d">InputDevice</A>&nbsp;device)</PRE>
<DL>
<DD>Set the sensor's associated input device.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>device</CODE> - the sensor's new device</DL>
</DD>
</DL>
<HR>

<A NAME="getDevice()"><!-- --></A><H3>
getDevice</H3>
<PRE>
public <A HREF="../../../javax/media/j3d/InputDevice.html" title="interface in javax.media.j3d">InputDevice</A> <B>getDevice</B>()</PRE>
<DL>
<DD>Retrieves the sensor's associated input device.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the sensor's device</DL>
</DD>
</DL>
<HR>

<A NAME="getRead(javax.media.j3d.Transform3D)"><!-- --></A><H3>
getRead</H3>
<PRE>
public void <B>getRead</B>(<A HREF="../../../javax/media/j3d/Transform3D.html" title="class in javax.media.j3d">Transform3D</A>&nbsp;read)</PRE>
<DL>
<DD>Retrieves the last sensor reading and copies that value into
 the specified argument.