Removing multiple ROIs

[Ohkyung]

Dear ImageJ users,

I am trying to remove several ROIs from ROI manager in a macro. I know
there is a way to do so in plugin programming. However, I want to do
this in macro if it is not impossible.

1. No problem to delete one ROI from the manager.

roiManager("Select", index);
roiManager("Delete");.

2. However, when I try to delete several ROIs at the same time, it is
not working. I think that it is due to the fact that roi manager
automatically reassign new index starting from 0 when I delete one Roi
from roi manager. Thus, I cannot delete  several ROIs that I want to
delete.

                for (iRow = 0; iRow <nResults; iRow++) {
                        area = getResult("Area", iRow);
                        if (area >= 200) {
                                roiManager("Select", iRow);
                                roiManager("Delete");
                        }
                }

3. I also tried to select multiple ROIs first. Then delete them. But
this also did not work.

                for (iRow = 0; iRow <nResults; iRow++) {
                        area = getResult("Area", iRow);
                        if (area >= 200) {
                                roiManager("Select", iRow);
                        }
                }
                roiManager("Delete");


Any good ideas? Thanks very much in advance.

Best regards,
Ohkyung


P.S.
To select unwated ROIs, I want to use different parameters that are
not currently supported by ImageJ. I used "Area" just to demonstrate
what I want to do.

[dscho]

Hi,

On Fri, 11 Jun 2010, Ohkyung wrote:

> I am trying to remove several ROIs from ROI manager in a macro. I know
> there is a way to do so in plugin programming. However, I want to do
> this in macro if it is not impossible.
>
> 1. No problem to delete one ROI from the manager.
>
> roiManager("Select", index);
> roiManager("Delete");.
>
> 2. However, when I try to delete several ROIs at the same time, it is
> not working. I think that it is due to the fact that roi manager
> automatically reassign new index starting from 0 when I delete one Roi
> from roi manager.

Yes, it must do that, as there cannot be a ROI without an index all of a
sudden.

> Thus, I cannot delete several ROIs that I want to delete.
>
> for (iRow = 0; iRow <nResults; iRow++) {
> area = getResult("Area", iRow);
> if (area >= 200) {
> roiManager("Select", iRow);
>                roiManager("Delete");
> }
> }

Why not just go backwards?

                for (iRow = nResults - 1; iRow >= 0; iRow--)
                ...

Hth,
Johannes

[Oky]

Yes, it is working. Simple. :)

Thanks very much.

On Fri, Jun 11, 2010 at 2:50 PM, Johannes Schindelin
<[hidden email]> wrote:

> Hi,
>
> On Fri, 11 Jun 2010, Ohkyung wrote:
>
>> I am trying to remove several ROIs from ROI manager in a macro. I know
>> there is a way to do so in plugin programming. However, I want to do
>> this in macro if it is not impossible.
>>
>> 1. No problem to delete one ROI from the manager.
>>
>> roiManager("Select", index);
>> roiManager("Delete");.
>>
>> 2. However, when I try to delete several ROIs at the same time, it is
>> not working. I think that it is due to the fact that roi manager
>> automatically reassign new index starting from 0 when I delete one Roi
>> from roi manager.
>
> Yes, it must do that, as there cannot be a ROI without an index all of a
> sudden.
>
>> Thus, I cannot delete several ROIs that I want to delete.
>>
>>               for (iRow = 0; iRow <nResults; iRow++) {
>>                       area = getResult("Area", iRow);
>>                       if (area >= 200) {
>>                               roiManager("Select", iRow);
>>                               roiManager("Delete");
>>                       }
>>               }
>
> Why not just go backwards?
>
>                for (iRow = nResults - 1; iRow >= 0; iRow--)
>                ...
>
> Hth,
> Johannes
>

--
Ohkyung Kwon

http://www.linkedin.com/in/ohkyung
http://www.wpskorea.org
http://ncmir.ucsd.edu

[Michael Ellis]

I've written a plugin that implements a custom user interface based on  
a Swing JFrame containing some custom user interface items. I'd like  
to add the ability for my plugin to be recordable and to execute as a  
macro.

How can add macro recordability/runability in the absence of using  
GenericDialog?

Any tips gratefully appreciated!


Michael Ellis
Managing Director
Digital Scientific UK Ltd.
http://www.digitalscientific.co.uk
[hidden email]
tel: [phone]
fax: [phone]

Sheraton House
Castle Park
Cambridge
CB3 0AX


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[dscho]

Hi,

On Sat, 12 Jun 2010, Michael Ellis wrote:

> I've written a plugin that implements a custom user interface based on a
> Swing JFrame containing some custom user interface items. I'd like to
> add the ability for my plugin to be recordable and to execute as a
> macro.
>
> How can add macro recordability/runability in the absence of using
> GenericDialog?

Will your plugin be Open Source? If so, I am happy to help (as I get
something back for my efforts).

Ciao,
Johannes