Posted by
Stephan Collins on
Jun 12, 2017; 1:07pm
URL: http://imagej.273.s1.nabble.com/unit-issues-since-updating-to-version-1-51h-tp5018865p5018877.html
great thank you ! Inded it works and saves me a few lines of script
---------- Forwarded message ----------
From: Wayne Rasband <
[hidden email]>
Date: 2017-06-08 17:42 GMT+02:00
Subject: Re: unit issues since updating to version 1.51h
To:
[hidden email]
> On Jun 8, 2017, at 8:06 AM, Stephan Collins <
[hidden email]>
wrote:
>
> Dear all,
> 1- we are having issues since applying an imageJ update:
> In the 1.51h update,
> "Thanks to Thorsten Wagner, TIFF files with cm units are now converted to
µm units if the pixel width is less than 0.0001 cm."
>
> As a result of this, Our scale is now switched by default to um rather
than cm, and all the outputs (length, areas...).
>
> We need to revert to cm units regardless since all our data collected
thus far are in cm . Is there any way to deactivate this functionality or
simply write in some sort of preferences file that we want all our data in
cm ?
In the latest daily build (1.51p1), you can deactivate this feature by
adding
setOption("ConvertToMicrons",false);
to the Edit>Options>Startup dialog box. Update to the daily build by using
the Help>Update ImageJ command and selecting “daily build” from the drop
down menu.
> 2- Second problem
> pressing Ctrl+M gives us 9 decimals, if we indicate 9 digits in set
measurments, in the measures window but extracting these values using the
"getResult("Length", 0);" command during a Macro for example, results in
data which are inconsistently 4 to 8 decimals.
> Any idea why ?
The print() macro function defaults to 4 decimal places. You can override
this default by using the d2s() function. For example, this macro
run("Blobs (25K)");
run("Measure");
mean = getResult("Mean");
print("mean="+d2s(mean,9));
outputs
mean=103.268577756
-wayne
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