<p></p>
<p>Identical min/max_lax/mon in gpx.rb, line 70:</p>
<pre><code>  proj = OSM::Mercator.new(min_lat, min_lon, max_lat, max_lon, width, height)
</code></pre>
<p>followed by lines 96+97</p>
<pre><code>        px = proj.x(p.longitude)
        py = proj.y(p.latitude)
</code></pre>
<p>triggers a division by zero in osm.rb lines 382-388:</p>
<pre><code>    def y(lat)
      @height - ((ysheet(lat) - @ty) / (@by - @ty) * @height)
    end

    def x(lon)
      ((xsheet(lon) - @tx) / (@bx - @tx) * @width)
    end
</code></pre>

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