<div>Hi:</div><div><br></div><div>I'm reasonably familiar with KST but am having a lot of trouble parsing a NetCDF file in the fashion I intend. I am working on an instrument that will have have around 100 independent detectors measured at 100 samples per second each (i.e., around 10,000 total measurements per second). From the perspective of data acquisition it is much easier to write to a NetCDF variable with dimensions n_detectors x n_samples, where n_detectors would be this number around 100 (126 in example below) and n_samples would equal 100 for 1 seconds worth of data.</div>
<div><br></div><div>But trying to get KST to read this data in the way I intend seems to be difficult. I want it to be able to split the matrix into 126 separate vectors so that I can plot a timestream for each - realistically I would take a representative sample. The "sample" and "frame" terminology doesn't seem to quite match up to what I am doing - frames seem to be more about bookkeeping than actually combining many timestream vectors into a matrix.</div>
<div><br></div><div>Anyhow, I would like to solve this in a relatively simple way, with a preference toward avoiding re-writing how the data is originally written to disk as it is much simpler this way. Can I do what I need to do within KST or with a simple plug-in? I am quite comfortable working in C/C++/Java and shell scripting environments. Suggestions?</div>
<div><br></div><div>This is what the file looks like:</div><div><br></div><div>netcdf test-udp {</div><div>dimensions:</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>time = UNLIMITED ; // (3960037 currently)</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>nkids = 126 ;</div><div>variables:</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>int kids(time, nkids) ;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>kids:scale_factor = 1 ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>kids:add_offset = 0 ;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>kids:units = "bits" ;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>int timestamp(time) ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>timestamp:scale_factor = 1 ;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>timestamp:add_offset = 0 ;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>timestamp:units = "bits" ;</div>
<div>}</div><div><br></div><div>I am running KST 1.9.1 compiled manually after checking out the release source. I don't think it matters, but I am running the kde3 libraries alongside the kde4 libraries while logged into a KDE 3.5 WM session in OpenSUSE 11.2.</div>
<div><br></div><div>Tom</div>