Bug with ROI properties

Posted by lechristophe on Feb 07, 2018; 4:10pm
URL: http://imagej.273.s1.nabble.com/Bug-with-ROI-properties-tp5020023.html

Hi Wayne and the ImageJers,

There is something strange in the ROI properties. If I run this macro:

run("Select All");
roiManager("Add");
roiManager("select", roiManager("count")-1);
Roi.setProperty("TracingType", "" + 1);
// roiManager("select", roiManager("count")-1);
print(Roi.getName);
print(Roi.getProperties);
print(Roi.getProperty("TracingType"));

The output is :
0001-1024-1024
TracingType: 1
1

But if I re-select the ROI before asking for its properties (note the
uncommented line):

run("Select All");
roiManager("Add");
roiManager("select", roiManager("count")-1);
Roi.setProperty("TracingType", "" + 1);
roiManager("select", roiManager("count")-1);
print(Roi.getName);
print(Roi.getProperties);
print(Roi.getProperty("TracingType"));

Then the output is OK for the name, but the properties are now an empty
string:
0001-1024-1024

I use properties to "tag" ROIs between macros so right now the properties
are lost, due to this bug I think.

Thanks for your help,

Christophe

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