From: Anthony Towns <aj@erisian.com.au>
Date: Wed, 24 Nov 2010 23:07:34 +0000 (+1000)
Subject: docs: Document altosui "Graph Data" button
X-Git-Tag: debian/0.7.1+168+gcb08bc2~15^2~3^2~2
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=357826aa9c7b42c59f5d52b8eb016d73b6da0c7f;hp=7811e6dfa6caf10251da7df7c24b98cdc3787892

docs: Document altosui "Graph Data" button
---

diff --git a/doc/telemetrum-doc.xsl b/doc/telemetrum-doc.xsl
index 5c3e4c38..8f554d88 100644
--- a/doc/telemetrum-doc.xsl
+++ b/doc/telemetrum-doc.xsl
@@ -1087,7 +1087,30 @@
     <section>
       <title>Graph Data</title>
       <para>
-        This section should be written by AJ.
+        Select this button and you are prompted to select a flight
+        record file, either a .telem file recording telemetry data or a
+        .eeprom file containing flight data saved from the TeleMetrum
+        flash memory.
+      </para>
+      <para>
+        Once a flight record is selected, the acceleration (blue),
+        velocity (green) and altitude (red) of the flight are plotted and
+        displayed, measured in metric units.
+      </para>
+      <para>
+        The graph can be zoomed into a particular area by clicking and
+        dragging down and to the right. Once zoomed, the graph can be
+        reset by clicking and dragging up and to the left. Holding down
+        control and clicking and dragging allows the graph to be panned.
+        The right mouse button causes a popup menu to be displayed, giving
+        you the option save or print the plot.
+      </para>
+      <para>
+        Note that telemetry files will generally produce poor graphs
+        due to the lower sampling rate and missed telemetry packets,
+        and will also often have significant amounts of data received
+        while the rocket was waiting on the pad. Use saved flight data
+        for graphing where possible.
       </para>
     </section>
     <section>