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I'm working on switching from OpenLayers 2 to OpenLayers 3 and supplementing my reading of The Book of OpenLayers 3 by trying some things out on my own. There's a project that I'm building here that should be fairly simple: take form inputs and use them as parameters for building a vector layer. The interface works as intended, save for one problem.

Whenever I pan the map or zoom it, the vector layer seems to disappear. I can't for the life of me imagine what's going on. Anyone able to help me figure out what I can do to keep the layer in place?

To make things easier, I have created a JSFiddle, please feel free to use at will.

  • Welcome to GIS.SE. You might be better off putting the code on jsFiddle or similar and producing a minimal example demonstrating the problem. At the moment that is a lot of code to read through. – John Powell Feb 25 '16 at 6:36
  • Hi! I linked to the project inline, added the code as a courtesy for those who didn't want to click through. If that is not in accordance with GIS.SE custom, I'll be happy to remove it! – Dheeraj Chand Feb 25 '16 at 6:40
  • The reason that jsFiddle and the like is preferable, is because you can see the output and code side by side, and someone can update with a fix and post that. It is now possible to see your issue, but harder to see the code. – John Powell Feb 25 '16 at 7:31
  • Point taken! Sorry, I am new to SE, generally, still getting my sea legs. I'll edit to include a JSFiddle link. – Dheeraj Chand Feb 25 '16 at 7:40
  • Perfect. I wish everyone found their sea legs this quickly :-) – John Powell Feb 25 '16 at 8:22
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The answer was in line 77 here. It turns out that for whatever reason, I misunderstood falsiness in JavaScript and my style-builder function was erring on undefined styles. Who knew? The rest of the code works, though!!!

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