sensor.html

JAVA多媒体开发类库说明

<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>read</CODE> - the matrix that will receive the sensor reading</DL>
</DD>
</DL>
<HR>

<A NAME="getRead(javax.media.j3d.Transform3D, long)"><!-- --></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,
                    long&nbsp;deltaT)</PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>As of Java 3D version 1.4, prediction is not a
 supported feature; use <code>getRead(Transform3D)</code> instead.</I>
<P>
<DD>Retrieves the last sensor reading and copies that value into
 the specified argument.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>read</CODE> - the matrix that will receive the sensor reading<DD><CODE>deltaT</CODE> - this parameter is ignored</DL>
</DD>
</DL>
<HR>

<A NAME="lastRead(javax.media.j3d.Transform3D)"><!-- --></A><H3>
lastRead</H3>
<PRE>
public void <B>lastRead</B>(<A HREF="../../../javax/media/j3d/Transform3D.html" title="class in javax.media.j3d">Transform3D</A>&nbsp;read)</PRE>
<DL>
<DD>Extracts the most recent sensor reading and copies that value into
 the specified argument.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>read</CODE> - the matrix that will receive the most recent sensor reading</DL>
</DD>
</DL>
<HR>

<A NAME="lastRead(javax.media.j3d.Transform3D, int)"><!-- --></A><H3>
lastRead</H3>
<PRE>
public void <B>lastRead</B>(<A HREF="../../../javax/media/j3d/Transform3D.html" title="class in javax.media.j3d">Transform3D</A>&nbsp;read,
                     int&nbsp;kth)</PRE>
<DL>
<DD>Extracts the kth-most recent sensor reading and copies that value into
 the specified argument; where 0 is the most recent sensor reading, 1 is 
 the next most recent sensor reading, etc.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>read</CODE> - the matrix that will receive the most recent sensor reading<DD><CODE>kth</CODE> - the kth previous sensor reading</DL>
</DD>
</DL>
<HR>

<A NAME="lastTime()"><!-- --></A><H3>
lastTime</H3>
<PRE>
public long <B>lastTime</B>()</PRE>
<DL>
<DD>Returns the time associated with the most recent sensor reading.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the time associated with the most recent sensor reading.</DL>
</DD>
</DL>
<HR>

<A NAME="lastTime(int)"><!-- --></A><H3>
lastTime</H3>
<PRE>
public long <B>lastTime</B>(int&nbsp;k)</PRE>
<DL>
<DD>Returns the time associated with the kth-most recent sensor reading;
 where 0 is the most recent sensor reading, 1 is the next most recent
 sensor reading, etc.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the time associated with the kth-most recent sensor reading.</DL>
</DD>
</DL>
<HR>

<A NAME="lastButtons(int[])"><!-- --></A><H3>
lastButtons</H3>
<PRE>
public void <B>lastButtons</B>(int[]&nbsp;values)</PRE>
<DL>
<DD>Places the most recent sensor reading value for each button into
  the array parameter; will throw an ArrayIndexOutOfBoundsException
  if values.length is less than the number of buttons.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>values</CODE> - the array into which the button values will be
  placed</DL>
</DD>
</DL>
<HR>

<A NAME="lastButtons(int, int[])"><!-- --></A><H3>
lastButtons</H3>
<PRE>
public void <B>lastButtons</B>(int&nbsp;k,
                        int[]&nbsp;values)</PRE>
<DL>
<DD>Places the kth-most recent sensor reading value for each button into
  the array parameter; where k=0 is the most recent sensor reading, k=1 
  is the next most recent sensor reading, etc.;  will throw an 
  ArrayIndexOutOfBoundsException if values.length is less than
  the number of buttons.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>k</CODE> - the time associated with the most recent sensor reading<DD><CODE>values</CODE> - the array into which the button values will be
  placed.</DL>
</DD>
</DL>
<HR>

<A NAME="getSensorReadCount()"><!-- --></A><H3>
getSensorReadCount</H3>
<PRE>
public int <B>getSensorReadCount</B>()</PRE>
<DL>
<DD>Returns the number of SensorRead objects associated with
 this sensor.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the number of SensorReadObjects associated with this sensor</DL>
</DD>
</DL>
<HR>

<A NAME="setSensorReadCount(int)"><!-- --></A><H3>
setSensorReadCount</H3>
<PRE>
public void <B>setSensorReadCount</B>(int&nbsp;count)</PRE>
<DL>
<DD>Set the number of sensor read objects per Sensor. This is a 
 calibration parameter that should normally be set in this 
 object's constructor.  Calling this method resets all of this
 sensor's values that are already in the buffer.
 It is illegal to change this value after the device has been
 added to the scheduler.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>count</CODE> - the new sensor read count</DL>
</DD>
</DL>
<HR>

<A NAME="getSensorButtonCount()"><!-- --></A><H3>
getSensorButtonCount</H3>
<PRE>
public int <B>getSensorButtonCount</B>()</PRE>
<DL>
<DD>Returns the number of buttons associated with this sensor.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the number of buttons associated with this sensor.</DL>
</DD>
</DL>
<HR>

<A NAME="getCurrentSensorRead()"><!-- --></A><H3>
getCurrentSensorRead</H3>
<PRE>
public <A HREF="../../../javax/media/j3d/SensorRead.html" title="class in javax.media.j3d">SensorRead</A> <B>getCurrentSensorRead</B>()</PRE>
<DL>
<DD>Gets the current sensor read.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the current sensor read object</DL>
</DD>
</DL>
<HR>

<A NAME="setNextSensorRead(long, javax.media.j3d.Transform3D, int[])"><!-- --></A><H3>
setNextSensorRead</H3>
<PRE>
public void <B>setNextSensorRead</B>(long&nbsp;time,
                              <A HREF="../../../javax/media/j3d/Transform3D.html" title="class in javax.media.j3d">Transform3D</A>&nbsp;transform,
                              int[]&nbsp;values)</PRE>
<DL>
<DD>Sets the next sensor read to the specified values; once these
  values are set via this method they become the current values
  returned by methods such as lastRead(), lastTime(), and 
  lastButtons(); note that if there are no buttons associated with
  this sensor, values can just be an empty array.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>time</CODE> - the next SensorRead's associated time<DD><CODE>transform</CODE> - the next SensorRead's transformation<DD><CODE>values</CODE> - the next SensorRead's buttons' states</DL>
</DD>
</DL>
<HR>

<A NAME="setNextSensorRead(javax.media.j3d.SensorRead)"><!-- --></A><H3>
setNextSensorRead</H3>
<PRE>
public void <B>setNextSensorRead</B>(<A HREF="../../../javax/media/j3d/SensorRead.html" title="class in javax.media.j3d">SensorRead</A>&nbsp;read)</PRE>
<DL>
<DD>Sets the next sensor read to the specified values; once these
  values are set via this method they become the current values
  returned by methods such as lastRead(), lastTime(), and
  lastButtons().
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>read</CODE> - the next SensorRead's values</DL>
</DD>
</DL>
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