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From: | Jorn Anke |
Subject: | [Paparazzi-devel] How to use constants and variables in flight plans? |
Date: | Sat, 15 Dec 2012 23:41:43 +0100 |
Hi,
I was reading the wiki about flight plans, and have a few questions about what is actually possible to do, with regard to variables and constants. Copy-paste from the wiki: "ExpressionsMost of the numeric attributes in stages are analyzed as C expressions. The syntax of this C _expression_ is restricted to
Lets say I have these waypoints: <waypoint name="100" x="0" y="0"/> <waypoint name="101" x="200" y="0"/> <waypoint name="102" x="200" y="-100"/> <waypoint name="103" x="0" y="-100"/> <waypoint name="104" x="0" y="-20"/> and this loop: <block name="Loop1"> <for var="i" from="1" to="5"> <go from="100" wp="101" hmode="route"/> <go from="101" wp="102" hmode="route"/> <go from="102" wp="103" hmode="route"/> <go from="103" wp="104" hmode="route"/> </for> </block> Is it possible to define two constants; "delta_x" and "delta_y", and to offset the original waypoints by these values, times "i", for each turn of the loop? If so, how? Cheers, Jorn |
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