mobius | sharing scripts for Jeff Larson | Video Utils library

Consider adding error checking after each external command.

You can use ksh -x to run your script to see your mistake, this turns on debugging mode. You can also do this by adding set -x inside the script.

Your script is looping because the variable $c is not being set the way you think.

You might want to check the exit code ($?) from each external command, and also check that the stdout returned by lpstat is not empty or any error, and verify that the mail program is on the PATH and executable etc.

Try a different approach, something like this:

I'm not sure if this will help, but yes you can do complex arithmetic by matrices.

If you regard a complex number z as a real two-vector with components Re(z), Im(z) Then

I think there are two issues with your example.

The first issue is with the request to the . You need to distinguish between requests to the resource itself and requests to the members of the .

There is no child resource of the resource itself. This is why you receive an error message. If you want to pass a request to all members of a resource then you need to target the virtual child resource . In your case the request should target URI https://localhost:7579/Mobius/grp_text_100520/fopt. Since you already have the resources as members you won't need to add the /la part to the request. However, I would recommend to only add the resources to the group and use the target URI https://localhost:7579/Mobius/grp_text_100520/fopt/la to retrieve the latest of each container.

The second (smaller) issue is that from what I can get from your example code that you add the same resource multiple times to the group, but only with different addressing schemes. Please be aware that the CSE must removes duplicate resources when creating or updating the mid attribute.

Edit after question update

It is not very clear what your resource tree looks like. So, perhaps you should start with only one resource references and continue from there. Valid ID's in the mid attribute are either structured (basically the path of the rn attributes) or unstructured ID's (the ri's). The CSE should filter the incorrect ID, so you should get the correct set of ID's in the result body of the CREATE request.

btw, where does "thyme" come from? This is only in a label, which does not form an ID.

Regarding the resource: Normally all request would be targeted to the resource, but requests to the virtual resource are forwarded to al the members of the group. If a resource referenced in mid is accessible then the request is forwarded and the result is collected and is part of the result body of the original request.

You also need to be careful and regard the resource types: only send valid requests to the group's members.

Update 2

From the IDs in the mid attribute of the resource it looks like that the CSE validated the targets (though the cnm (current number of members) is obviously wrong, which seems to be an error of the CSE).

So, you should be able to send requests to the group's resource as discussed above.

For the CSE runtime error you should perhaps contact the Mobius developers. But my guess is that you perhaps should download and install the whole distribution, not only a single file.

The method decoder.unkeyedContainer is intended for parsing of arrays. Respectively it's necessary to use decode.singleValueContainer for single values:

I took the (Cartesian) cubic equation of the mobius from: mathworld then I replaced the x,y and z of mobius with the ray equation.

However the result is this one:

Here is the code to calculate the mobius coefficients.