Changeset 1260 for trunk/examples/app-fermi/octave/fermi.m

Timestamp:

Dec 20, 2008, 2:51:08 PM (16 years ago)

Author:

dkearney

Message:

updating octave and matlab example code to take advantage of vector operations to write data to rappture library object. this helps with large arrays, you no longer need to iterate over each element in the array and write elements one by one.

File:

• trunk/examples/app-fermi/octave/fermi.m (modified) (1 diff)

trunk/examples/app-fermi/octave/fermi.m

@@ -41 +41 @@
 rpLibPutString(lib,"output.curve(f12).yaxis.units","eV",0);
 
-for j=1:200
-  rpUtilsProgress((j/200*100),'Iterating');
-  putStr = sprintf('%12g  %12g\n', f(j), E(j));
-  % put the data into the xml file
-  rpLibPutString(lib,"output.curve(f12).component.xy",putStr,1);
-end
+% this is a slow and inefficient method of putting
+% large amounts of data back in to the rappture library object
+%for j=1:200
+%  rpUtilsProgress((j/200*100),'Iterating');
+%  putStr = sprintf('%12g  %12g\n', f(j), E(j));
+%  % put the data into the xml file
+%  rpLibPutString(lib,"output.curve(f12).component.xy",putStr,1);
+%end
+
+% a better way is to take advantage of octave's vector operations.
+outData = [f;E];
+putStr = sprintf('%12g  %12g\n', outData);
+rpLibPutString(lib,'output.curve(f12).component.xy',putStr,0);
 
 % signal the end of processing