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<H3>Bow Methods</H3>
The main attributes of a Bow device are the force with which
it is applied to the instrument (which has a marked effect on the bow's
ability to sustain the frictional forces needed to move the instrument),
and its velocity. The following methods are available with a bow.
<P><PRE>
setForce(<force>)
setVelocity(<velocity>)
getForce()
getVelocity()
(<accessPoint>)
(<instr>, <x>)
(<instr>, <x>, <y>)
</PRE>
<P>The last three methods provide three different ways to apply
a bow to an instrument. The first specifies an access point, the second
an instrument and a single <I>x</I> coordinate (for a string), and
the third an instrument and both <I>x</I> & <I>y</I> coordinates.
<P>Although these methods are available in a script an alternative
syntax is usually used for applying a bow to an instrument at a specific
point. This consists of the access point specification (the instrument
name followed by the instrument coordinates enclosed in parentheses)
followed by the <EM>apply</EM> operator: <CODE>--</CODE>, followed by the
name of the bow. For example in the following code fragments the left
and right hand sides are exactly equivalent:
<P><PRE>
Bow bow;
Init:
bow(string(0.1)); <==> string(0.1) -- bow;
bow(rect(0.5,0.7)); <==> rect(0.5,0.7) -- bow;
...
</PRE>
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<tr><td colspan="3" class="addr"><!-- bottom panel --><ADDRESS><FONT SIZE=-1>©1999,2000 Mark Pearson
<A HREF="mailto:m.pearson@ukonline.co.uk">m.pearson@ukonline.co.uk</A> April 30, 2000</ADDRESS><BR></td></tr><!-- end bottom panel --></table></BODY></HTML>
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