From ccdf4e5641f8847cd49ead381e21b3d28cd0bcc2 Mon Sep 17 00:00:00 2001 From: "Eric S. Raymond" Date: Tue, 20 Apr 2010 22:32:55 -0400 Subject: Clear DOPs only when we get a skyview report. This solves the disappearing epx/epy bug on SiRFs, but it was actually a systemic problem that affected several drivers. Navigation solution messages were clearing DOPs, making it impossible for the error modeller to compute estimates. New logic: Clear DOPs only when we get a skyview report. They'll be regenerated by our visibility-matrix calculation when the skyview sentence is analyzed. If a sentence from the device supplies a DOP between the time the visibility calculation is done and when the next fix is reported, it will override our computed value. This might change later! 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