User manual

Imagestore User Manual Intuition
Miranda Technologies Ltd Page 151
Imagestore Intuition
To control an Imagestore Intuition we recommend driving it directly via
automation as it has the same Imagestore automation interface. However, if
an additional automation port is not available then the Imagestore can be
placed in a mode where it can forward commands to the Intuition, as shown
below. The diagram shows that in this path we would use the existing Oxtel
series automation protocol.
An Imagestore has only two keying layers. The Intuition has many keying
layers. How do we address both units via the Imagestore control port?
The Imagestore keying layer parameter in the command protocol is
represented by a single character, this currently is set to 0 or 1 to address the
midground or foreground keying layer in an Imagestore. We will now allow
this character to take values from 0x0 to 0xF to address keying layers above
1. This will mean that automation vendors will have to do the minimal
amount of work to support the greater number of keying layers we offer.
The Imagestore code will have to accept these new values and act upon them.
If for example an Imagestore has an Intuition attached and it receives a
command to load a graphic into layer ‘2’, it will forward this command onto
the Intuition to load the graphic into the first Intuition keying layer. To do
this it must subtract 2 from the layer value before relaying the command.
Remember that layer zero in the intuition is the first layer. To illustrate this
further: