[Octave-bug-tracker] [bug #34207] gl-render does not set tick labels for log axes appropriately

[Ben Abbott]

Follow-up Comment #5, bug #34207 (project octave):

This fixes most of the problem for me.


diff --git a/src/graphics.cc b/src/graphics.cc
--- a/src/graphics.cc
+++ b/src/graphics.cc
@@ -5263,6 +5263,13 @@
 
   double tick_sep = calc_tick_sep (lo , hi);
 
+  if (is_logscale && ! (xisinf (hi) || xisinf (lo)))
+    {
+      // FIXME - what if (hi-lo) < tick_sep?
+      //         ex: loglog ([1 1.1])
+      tick_sep = std::max (tick_sep, 1.);
+    }
+
   int i1 = static_cast<int> (gnulib::floor (lo / tick_sep));
   int i2 = static_cast<int> (std::ceil (hi / tick_sep));


However, for plots like loglog([1 1.1]) the result would look better if the
axis limits were tighter (meaning I think the tick_sep is correct, but the
axis limits are too loose).

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