javascript - dc.js Bubble Chart, plotting bubbles along the x-axis timeline -


i building bubble chart in dc.js having problems plotting along x-axis.

the link graphs is: http://junklogic.com/dcjs/creatures/creatures.html

the design of chart follows, using dataset of "mythical creature sightings" fun.

each line of json this: 

{   "creature_name": "dragon",   "seenby": "ann",   "date": "2014-01-25t22:10:58",   "danger": 3,   "location": "fl"  },

each bubble grouped based on date , time of creature sightings.

  • the bubble radius count of sightings individual @ particular time.
  • the bubble color average of danger levels, summed , divided count reveal number 1-3
  • the y-axis calculation of danger levels multiplied count (i call "impact")
  • the x-axis should plot bubbles based on timeline, same time range bar chart below it. stuck.

all bubbles pinned @ pixel 0 , dont plot across. these reflect point across timeline. ideally, i'd group them into, say, 1-hour groups. getting them plot make big difference in progression of learning these libraries.

the script at: http://junklogic.com/dcjs/creatures/js/creatures.js

the json file at: http://junklogic.com/dcjs/creatures/data/dashdata.json

thanks in advance help. if need provide other info solve question, i'm happy provide can

well, found it. 

p.datetime += v.date;

and 

p.datetime -= v.date;

should be: 

p.datetime = v.date;

-

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