Re: Import XY from text file to point selections

Posted by BenTupper on Jun 01, 2009; 11:58pm
URL: http://imagej.273.s1.nabble.com/Import-XY-from-text-file-to-point-selections-tp3692339p3692340.html

On Jun 1, 2009, at 3:13 PM, Kevin Marsh wrote:

> I have point data that was collected from an external process that has
> X and Y coordinates and a unique identifier. I was wondering if there
> was an easy way to create point selections (or some other type of
> marker) of the data on top of an image.


Hi,

The macro below will read a columnar text file, parse it, and plot the  
contents on an image.  The example text file is pasted below the macro.

// begin macro
file = File.openDialog("Select the text file to read");
allText = File.openAsString(file);
text = split(allText, "\n");
hdr = split(text[0]);

//these are the column indices
iX = 0;
iY = 1;
iLabel = 2;

setForegroundColor(255,255,255);

run("Blobs (25K)");

for (i = 1; i < (text.length); i++){
   line = split(text[i]);
   drawString(line[iLabel], parseInt(line[iX]), parseInt(line[iY]));
}
// end macro

// begin example file
X Y Label
10  20  "Bob"
50  70  "Jeff"
100 100 "Betty"

//end example file

Ben Tupper