Re: import xy coordinates

Posted by Pouletaut on
URL: http://imagej.273.s1.nabble.com/import-xy-coordinates-tp3682787p3682789.html

Hi Johannes,

many thanks for your quick answer.
I've found a plugin which does all the job : ROI_Importer.java

Have a nice day.

Yours faithfully
Philippe

Johannes Schindelin <[hidden email]> a écrit :

> Hi Philippe,
>
> On Mon, 24 Oct 2011, Pouletaut wrote:
>
>> is there a way to import a xy coordinates file in order to plot and
>> overlay a contour on a image ? The file consists of two columns of float
>> coordinates in ASCII format, gathering ordered points of a contour.
>
> The easiest method would probably to write a macro. It would use the
> following functions:
>
> - File.openAsString() (or File.openAsRawString() if the file is larger
>   than 5000 bytes) to read in the contents
>
> - split() to separate the lines
>
> - newArray() to make one array for the x and one for the y coordinates
>
> - a loop iterating over all the lines
>
> - inside the loop another split() to separate the numbers
>
> - parseFloat() to convert the textual representation of the numbers into
>   numeric values
>
> - after the loop, makeSelection() to turn the arrays into a ROI
>
> - run() to call the "Add selection..." plugin to add the ROI to the overlay
>
> Ciao,
> Johannes
>

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