title: Finding Lat/Long using polygon or circle as search
body: <p>I'm out of my element here so please forgive me if I dont ask this correctly/clearly.</p>
  
  <p>I have a table of users with lat/long for each one.</p>
  
  <p>I get a query from a federal agency that provides either a polygon or a circle like this:</p>
  
  <pre><code>&lt;polygon&gt;38.47,-120.14 38.34,-119.95 38.52,-119.74 38.62,-119.89 38.47,-120.14&lt;/polygon&gt;
  &lt;circle&gt;32.9525,-115.5527 0&lt;/circle&gt;
  </code></pre>
  
  <p>Given either of these two inputs, I need to return all users within the polygon or circle.</p>
  
  <p>I've looked all over, read all the mysql spatial docs etc. and I am either missing a step or just not grokking the query method.</p>
  
  <p>ANY help would be appreciated!</p>