X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=pv%2Fview%2Fanalogsignal.cpp;h=399802b5e0f754ca0eebded3393344f52bb2e053;hb=1f1d55ce48ae1dac0f077c60827a41b368b5207a;hp=d9ac2f60afcf853d1b225a18c139854ec94ed824;hpb=85715407f784767052238586f4e7f64440b7693e;p=pulseview.git

diff --git a/pv/view/analogsignal.cpp b/pv/view/analogsignal.cpp
index d9ac2f6..399802b 100644
--- a/pv/view/analogsignal.cpp
+++ b/pv/view/analogsignal.cpp
@@ -80,7 +80,7 @@ AnalogSignal::AnalogSignal(
 	pos_vdivs_(1),
 	neg_vdivs_(1),
 	resolution_(0),
-	autoranging_(1)
+	autoranging_(true)
 {
 	pv::data::Analog* analog_data =
 		dynamic_cast<pv::data::Analog*>(data().get());
@@ -389,6 +389,12 @@ void AnalogSignal::perform_autoranging(bool force_update)
 		neg_vdivs_ = 0;
 	}
 
+	// Split up the divs if there are negative values but no negative divs
+	if ((min < 0) && (neg_vdivs_ == 0)) {
+		neg_vdivs_ = pos_vdivs_ / 2;
+		pos_vdivs_ -= neg_vdivs_;
+	}
+
 	double min_value_per_div;
 	if ((pos_vdivs_ > 0) && (neg_vdivs_ >  0))
 		min_value_per_div = std::max(max / pos_vdivs_, -min / neg_vdivs_);