[ImageJ-devel] Scripting examples

[Brian Northan]

Thanks very much Johannes and Curtis

Johannes' code snippet works perfectly.  That's exactly what I needed to
know.  How to access the services from a script.  Now that I know how to do
that I can try some more complicated stuff (use the datasetservice and
commandservice to open images and perform operations).  I will let you know
if any questions come up.  Please let me know any additional information or
tips that will be helpful.

Thanks again

Brian


On Tue, Feb 18, 2014 at 2:26 PM, Curtis Rueden <ctrueden at wisc.edu> wrote:

> Hi Brian,
>
> I am out of the office today, and will reply in more detail later, but
> just wanted to quickly add: the example Johannes wrote should work with the
> current master branch as well as the recent 2.0.0-beta-7.7 release.
> Specifically, it will work if you "Run Script" since the parameter parsing
> mechanism etc. is all already in place. It just doesn't work from the
> Script Editor yet since that tool needs some TLC still. As Johannes says, I
> am still actively hacking on scripting support.
>
> Also note that you can inject a Context parameter then make a new ImageJ
> gateway object wrapping it to easily access services the same way the
> tutorials do. (I forget whether ImageJ gateways are injectable ATM but if
> not, they will be.)
>
> Anyway, please let us know if you are unable to run such scripts.
>
> Regards,
> Curtis
> On Feb 18, 2014 12:41 PM, "Johannes Schindelin" <
> Johannes.Schindelin at gmx.de> wrote:
>
>> Hi Brian,
>>
>> On Tue, 18 Feb 2014, Brian Northan wrote:
>>
>> > Now I am trying to understand how one should be accessing ImageJ2
>> > functionality from the scripts.  In ImageJ1 I use the static functions
>> in
>> > the IJ class, IJ.run, IJ.openImage etc.
>>
>> Yeah, in IJ2 you have to use a context. The static functions of ImageJ 1.x
>> do not allow you to insulate separate processes from each other. That
>> leads to surprising results, e.g. when you try to put more than one
>> ImageJ 1.x applet into the same web page: it simply won't work, ever.
>>
>> > So far in ImageJ2 I have been writing java applications that start by
>> > instantiating an ImageJ app and then use that to access services and run
>> > commands. Basically following the tutorials.
>> >
>> > So how are things intended to work in a script??  Is there a simpler api
>> > somewhere like the IJ API??  Or does one still need to use the service
>> APIs
>> > in a script??
>>
>> This is a work in progress right now, under heavy construction.
>> Eventually, something like this will work:
>>
>> -- snip --
>> # @StatusService status
>> # @OUTPUT String greeting
>>
>> status.showStatus(1, 2, "In progress...")
>> status.warn("This is a gentle warning")
>> status.showStatus(2, 2)
>>
>> greeting = "Hello, world!"
>> -- snap --
>>
>> In other words, your input and output parameters will be specified using a
>> syntax similar to ImageJ2 commands' at the top of the script.
>>
>> Ciao,
>> Johannes
>>
>
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