jazzmutant lemur Benutzerhandbuch
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If we click on Multiball’s disclosure triangle, we see some additional details.
The check boxes next to Multiball, x, y, and z are extremely important. The check box next
to Multiball must be checked before the object will send any data to the computer when
you are using the Lemur to control an application. In addition, the check box next to x
must be checked in order for the Lemur to send horizontal positional data when you
touch this Area object. And, you guessed it, the check box next to y must be checked in
order for the Area object to send vertical positional data when you touch this object. (The
checkbox next to z is used to send “brightness” data when a ball fades in and out.)
to Multiball must be checked before the object will send any data to the computer when
you are using the Lemur to control an application. In addition, the check box next to x
must be checked in order for the Lemur to send horizontal positional data when you
touch this Area object. And, you guessed it, the check box next to y must be checked in
order for the Area object to send vertical positional data when you touch this object. (The
checkbox next to z is used to send “brightness” data when a ball fades in and out.)
Why wouldn’t you want to send data to the application you were using? There are two
reasons: one would be if you were using an object merely to display information coming
from your computer. The Mulitball object could represent the state of something
happening on your computer. The other reason is that you would transmit the data from
the object to your computer via a variable containing a mathematical expression, which
transforms the x and y values to another range of values more appropriate for what
you’re controlling. We’ll learn about this technique in the Variables and Expressions
chapter.
reasons: one would be if you were using an object merely to display information coming
from your computer. The Mulitball object could represent the state of something
happening on your computer. The other reason is that you would transmit the data from
the object to your computer via a variable containing a mathematical expression, which
transforms the x and y values to another range of values more appropriate for what
you’re controlling. We’ll learn about this technique in the Variables and Expressions
chapter.
In the beginning case, we will want to use the Multiball for transmitting the position of
the purple ball to our computer, so we should check Multiball as well as x, y, and z.
the purple ball to our computer, so we should check Multiball as well as x, y, and z.