Reset variables ?

Posted by LP on Apr 21, 2017; 7:26pm
URL: http://imagej.273.s1.nabble.com/Reset-variables-tp5018587.html

Dear ImageJ community,

I'm writing a macro where I create multiple ROIs based on a threshold and then I want to select them all and combine them. And repeat this on multiple frames.

But unfortunately my macro only works for the first frame and then it says " Invalid index: 0 in line 12. roiManager("select" ,array <)>; "

Maybe I should reset the array variable ? But I didn't manage to do it...

So far I have the following:
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Stack.getDimensions(width,height,channels,slices,frames);
for (t=1; t<=frames; t++) {
                setAutoThreshold("Yen dark");
                run("Analyze Particles...", "size=4-Infinity exclude add slice"); //Creates multiple ROIS

                                array=newArray("0"); //in order to be able to select all the ROIS
                                for (i=1;i<roiManager("count");i++){
                                                array=Array.concat(array,i);
                                                }
                                               
                roiManager("select",array); // selects all the ROIS
                roiManager("Combine"); // Combines all the ROIS
                roiManager("Add");
               
                m = roiManager("count");
                roiManager("Select", m-1 ); // selects the last ROI
               
                roiManager("Measure"); // measures the newly created ROI
                roiManager("Deselect");
                roiManager("Delete");
               
                run("Next Slice [>]");
                }
__________________________________________

Any suggestion and help will be very appreciated.
Thank you very much for your help in advance,
LP