Getting an error when trying to build a radar from scratch about techradar HOT 7 OPEN

I narrowed this down a bit - if you have an empty segment and there is a non-empty outer segment in the same quadrant, you will get the above javascript error.

from techradar.

I have a similar issue: When I add data for the top right or bottom left quadrant with a radius of >=100, the JS fails. Maybe this is identical, I suggest to try to stick with lower radius for testing it.
For top left and bottom right, larger radius is working fine ...

from techradar.

Looks like you need one item of < 100 radius in a quadrant or else the radar does not display

from techradar.

Looks like this is a bug in the underscore.js library that is causing the error if you have a quadrant with no items in it. Replacing the 1.5.2 version of the lib included in this project with the latest 1.8.2 version available seems to resolve the problem.

from techradar.

I have the same kind of issue, if I go above 200 in radius the graph won't render and w got the following javascript error:
TypeError: data is undefined inside protovis-d3.2.js
ps: I have upgraded to underscore 1.8.3 too

from techradar.

I've opened up a pull request with a fix for this. In radar.js, _.groupBy doesn't take into account groups that exist. I've hacked in a fill in the blanks style fix.

from techradar.

I can confirm that the fix from @fffej works for me. Would be great to merge it!

from techradar.