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OPUS Projektor Manual
FAQ
How can I calculate with numbers in unsigned32 in JavaScript
You can force the interpretation of a number in JavaScript in unsigned32 by executing this
code:
var number_us32 = number_original >>> 0;
How can I set the IP of the device?
To change the IP of a device while it is running, use the variable @Ethernet0_IPAdress .
But this is not a permanent setting!
The IP address that will be set on startup can and has to be defined in the project
updater . The Ethernet port will be available as soon as the address is set.
I connected an Ethernet camera and did everything right, but why
don't I see an image?
1. The camera needs to be set to H.264
2. The UDP output port of the camera needs to be set in the video frame/page properties
3. Even when all camera settings are correct and the project is set up correctly, it's
important to remember that Ethernet needs to be activated, this does not happen
automatically with an Ethernet Camera configured and connected.
How can I make changes to the file system when loading the project?
Sometimes you may want to make certain changes to the file system upon project
installation. An example would be the creation of the path /opt/user_files or to copy some
external files somewhere. You can add files in the project update process . There you
can also edit the post-installation script which can be modified to add necessary
commands (e.g. mkdir /opt/user_files).
How can I change the line appearance in the 2D Graph?
Line attributes define the look of the lines in the 2D Graph . They can be modified and
new attributes can be created in the project properties .
How can I display languages with other characters?
The possible characters depend on the font supporting them.
Please find free fonts for the language you need and import them in the project
properties .
For asian characters e.g. consult this list: https://en.wikipedia.org/wiki/List_of_CJK_fonts
Why is the save button disabled?
The save button is only enabled if any change to a project has been made. No changes - no
need to save the project.
A consequence of that is that if a project has been saved and the program is closed, no
saving dialog will pop up, the program will just close.
(How) Can I make screenshots of my project on the device?
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