Posted by
Wayne Rasband-2 on
Jul 22, 2019; 9:55pm
URL: http://imagej.273.s1.nabble.com/how-ot-find-the-center-of-an-ROI-tp5022337p5022338.html
> On Jul 22, 2019, at 2:39 PM, Aryeh Weiss <
[hidden email]> wrote:
>
> The Roi class has a method called getCentroid() that returns the centroid of an Roi.]
>
> Is there a similarly simple way to find the center of mass of an Roi or Selection.
> so far, it looks like I need to do the following:
>
> 1. define an Analyzer(imp) object
> 2. Use Analyzer.measure() to put the mesurements into a ResultsTable
> 3. Read the appropriate columns of the ResultsTable.
>
> Is this the way to do it, or is there a way to directly get it from the Roi, like the centroid?
With the macro language and Image 1.52p or later, use
xm = getValue("XM");
ym = getValue("YM");
print(xm,ym);
To get uncalibrated values use
xm = getValue("XM raw");
ym = getValue("YM raw");
print(xm,ym);
With a scripting language and the 1.52q30 daily build, use
img = IJ.getImage();
xm = IJ.getValue(img,"XM");
ym = IJ.getValue(img,"YM");
IJ.log(xm+" "+ym);
xm = IJ.getValue(img,"XM raw");
ym = IJ.getValue(img,"YM raw");
IJ.log(xm+" "+ym);
-wayne
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