scanwidget: min 3 ticks (f3b4cb2)

2016-03-17 00:30:13 +01:00 · 2016-03-17 00:30:13 +01:00 · 61223fb053
parent a4e916de73
commit 61223fb053
1 changed files with 2 additions and 2 deletions
--- a/artiq/gui/scanwidget.py
+++ b/artiq/gui/scanwidget.py
@ -173,8 +173,8 @@ class ScanWidget(QtWidgets.QWidget):
        if center:
            scale = min(scale, self.dynamicRange/abs(center))
        left = a*scale/b
-        self.ticker.min_ticks = int(ev.size().width() /
-                                    (2.5*self._labelSize.width()))
+        self.ticker.min_ticks = max(
+            3, int(ev.size().width()/(2.5*self._labelSize.width())))
        self._setView(left, scale)

    def paintEvent(self, ev):