When zooming into canvas plots the resolution is sometimes limited.
See here: https://groups.google.com/forum/?fromgroups#!topic/comp.graphics.apps.gnuplot/M2ZOD445uWg
Dots appear on the same x position because the oversampling rate is to small for my application.
So I recompiled gnuplot (ubuntu precise) with an oversampling rate of 10000 to solve my problem.
From file canvas.trm:
Having a parameter to set this from command line would be great.
thx
This is a reasonable idea, but implementing it would be more work than you may think. The oversampling constant is currently hard-wired into the javascript code associated with mousing. If we make it a parameter to "set term", we also have to rewrite the javascript support routines to look for the current value and use it for all mouse operations. Certainly possible, but a bit tedious and it would introduce a version-dependence for the javascript routines.
Maybe for version 5