http://imagej.273.s1.nabble.com/Basic-question-about-ROI-positioning-by-Keyboard-Arrows-tp5017053p5017092.html
problem. I created an image of an "arrow keyboard" with some "buttons"
original ROI. If the image is active the macro is in a sort of pausing.
>Hi Mario,
>
>thanks to a hint from Wayne, it can be done without an
>Overlay.getBounds macro command. Here is an example:
>
> // This macro allows the user to interactively move an image
> // as an overlay and then pastes the image to the position
> // selected by the user
>
> run("Blobs (25K)");
> run("Copy");
> newImage("PasteGoesHere", "8-bit black", 300, 300, 1);
> run("Invert LUT"); //to make it fit the Blobs
> selectWindow("PasteGoesHere");
> run("Add Image...", "image=blobs.gif x=10 y=10 opacity=100");
> Overlay.activateSelection(Overlay.size-1);
> waitForUser("Move the overlay, then press OK");
> Overlay.activateSelection(Overlay.size-1);
> Overlay.removeSelection(Overlay.size-1);
> run("Paste");
> run("Select None");
>
>In contrast to moving a pasted image (which is not possible while a
>macro is running), you will see a rectangle around the overlay. I you
>like, you can make the rectangle transparent with
> run("Overlay Options...", "stroke=#00ffffff width=0 fill=none
>apply");
>
>Note that you could resize the overlay image with the handles, but the
>the macro won't paste a resized image. If you have an 8-bit or RGB
>image, you could use 'flatten image' to create an image with the
>inserted overlay instead of 'Paste', then you can also resize the
>image.
>
>
>Michael
>________________________________________________________________
>On 2016-08-18 20:47, Michael Schmid wrote:
>>Hi Mario,
>>
>>when a macro is running, the paste operation does not allow moving the
>>pasted contents after the paste operation. I guess that this is meant
>>to
>>avoid accidentally shifting the contents when a user presses an arrow
>>key. This also applies during the 'wait for user' dialog.
>>
>>I see two ways out:
>>(1) stop your macro, and ask the user to continue with another macro
>>after pasting and adjusting the position (e.g. with one of the
>>F1...F12
>>keys)
>>(2) Instead of 'Paste', use an overlay. The user can shift overlays
>>during the 'wait for user' dialog. Then determine the position of the
>>overlay, remove it, create a rectangle there and paste the image into
>>that place. Unfortunately, it seems there is no
>>Overlay.getBounds(index,
>>x, y, width, height) macro command, you would have to decode the
>>getInfo("overlay") string, which is not very nice.
>>
>>Here is a proof-of-concept macro:
>> run("Blobs (25K)");
>> w=getWidth();
>> h=getHeight();
>> newImage("PasteGoesHere", "8-bit white", 300, 300, 1);
>> selectWindow("blobs.gif");
>> selectWindow("PasteGoesHere");
>> run("Add Image...", "image=blobs.gif x=10 y=10 opacity=100");
>> Overlay.activateSelection(Overlay.size-1);
>> waitForUser("Move the overlay, then press OK");
>> getInfo("overlay");
>>
>>Michael
>>________________________________________________________________
>>
>>On 2016-08-18 18:57, Mario Faretta wrote:
>>>HI Michael,
>>>thanks for the useful info.
>>>The operations I described should occur during a macro execution: the
>>>macro pastes an image into a calculated position, then, by calling
>>>the
>>>waitForUser() function, the macro execution is suspended. The user
>>>can
>>>consequently correct the positioning if necessary before the macro
>>>goes
>>>on. I am not an expert so I was wondering if in these conditions the
>>>ROI.endPaste is automatically called.
>>>Thanks again for the help
>>>Mario
>>>
>>>I am not a programmer
>>>On 2016-08-18 18:05, Michael Schmid wrote:
>>>>Hi Mario,
>>>>
>>>>after pasting an image or image part, you should be able to move the
>>>>pasted contents it until
>>>>- you select a different image or a panel such as B&C
>>>>(Brightness&Contrast) [the Threshold panel seems to do no harm], or
>>>>- you do something that deletes the ROI, e.g. by clicking outside of
>>>>it, or
>>>>- there is something that modifies or could potentially modify your
>>>>image.
>>>>
>>>>Technically speaking, for the last point, e.g. everything that
>>>>implements the PlugInFilter interface causes a call to Roi.endPaste.
>>>>This includes not only image modification operations but also many
>>>>read-only operations, such as image analysis and saving.
>>>>
>>>>If you lose the capability to move the ROI contents after a paste
>>>>operation without any obvious reason, what ImageJ & Java version and
>>>>operating system do you have?
>>>>(I have not seen such a problem with my computer so far, using
>>>>ImageJ
>>>>1.51f; Java 1.6.0_65 [64-bit]; Mac OS X 10.6.8)
>>>>
>>>>Michael
>>>>________________________________________________________________
>>>>On 2016-08-18 12:47, mfaretta wrote:
>>>>>Hi everyone,
>>>>>I have a very simple question about moving a rectangular ROI in an
>>>>>image
>>>>>using the keyboard.
>>>>>The idea is to set the correct position where a second image has to
>>>>>be
>>>>>pasted (in the first one).
>>>>>Sometimes by using arrow keys I can move the selection to x and y
>>>>>negative coordinate obtaining the correct positioning of the pasted
>>>>>image.
>>>>>However some other times after pasting the image and pressing the
>>>>>arrows, I can only move the selection (and not the pasted image)
>>>>>until
>>>>>the border without reaching negative values.
>>>>>Thanks for the help
>>>>>Mario
>>>>>
>>>>>Mario Faretta
>>>>>Department of Experimental Oncology
>>>>>European Institute of Oncology
>>>>>via Adamello 16
>>>>>20139 Milan
>>>>>Italy
>>>>>Phone: +390294375027
>>>>>email:
[hidden email]
>>>>>
>>>>>
>>>>>---
>>>>>This email has been checked for viruses by Avast antivirus
>>>>>software.
>>>>>
https://www.avast.com/antivirus>>>>>
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