title: LineString with UTM coordinate on d3
body: <p>I'am trying to implement some mapping with d3. Some problem happen after i moved from using command d3.svg.line() to d3.geo.path() and restructure to Geojson.</p>
  
  <p>I have drew line string section set on UTM coordinate zone 48N as following</p>
  
  <pre><code>{"type":"FeatureCollection","features":[
  {"type":"Feature","id":"02","properties":{"name":"LMC1"},"geometry":{"type":"LineString","coordinates":[
  [375221,1.92031e+06],[375287,1.92027e+06],..]}},..]}
  </code></pre>
  
  <p>I set projection by using mercator </p>
  
  <pre><code>var projection = d3.geo.mercator(),
  path = d3.geo.path().projection(projection);
  </code></pre>
  
  <p>This result shown with complex line string
  JavaScript console shown</p>
  
  <pre><code>Error: Problem parsing d="M521120.2777777778,111.9000492736892L620.2810464730694,...
  </code></pre>
  
  <p>Did i do something wrong with projection; or geo.path did not support UTM yet?
  Does anyone have any idea? </p>
  
  <p>You also see my example of this code on <a href="http://jsfiddle.net/agadoo/qNCcV/" rel="nofollow">http://jsfiddle.net/agadoo/qNCcV/</a></p>