Line beginning with null value, renders only dots, no line.

[Kirkman]

I want to draw LineGraphs that may have null values in them.

Specifically, this will be a chart showing the statistics of an NFL quarterback. Each point in the line will represent the QB's stats in a particular week of the season. However, every NFL team will have at least one "bye" week during the season -- a week where their team doesn't play.

I represent such a week as a null in the array. Here's an example:

[
[20,40,60,null,80,100,20,null,130],
[15,100,150,100,120,null,160,200,100],
[null,30,20,60,100,100,120,70,50]
],

The first two lines render okay: Ico renders a complete line, but on the weeks where there is a null, it does not render a dot.

But the third line, which begins with a null, does NOT have a line. Ico renders only dots.

[uiteoi]

I have not succeeded in reproducing the issue using this code (using your dataset), testing on Chrome:

      var series = [
        [20,40,60,null,80,100,20,null,130],
        [15,100,150,100,120,null,160,200,100],
        [null,30,20,60,100,100,120,70,50]
      ];

      var g18 = new Ico.LineGraph( "graph18",
        series,
        {   min: min, max: max
          , font_size: 12
          , labels: labels
          , series_names: ['This Year', 'Last Year', 'Intermitent']
          , value_labels: { add_padding: false }
          , units: '$', units_position: 0
          , x_padding_right: 15
          , colors: ['#228899', '#339933', 'grey']
          , mouseover_attributes: { stroke: 'green' }
          , curve_amount: 10
          , mouse_pointer: true
          , status_bar : status_bar
          , grid: true
        }
      );

Please provvide a sample of you code showing the problem plus indicate under which browser.

[Kirkman]

Here's an example page: http://joshrenaud.com/pd/qb-compare/qb-ico-tests.html

I see the issue in all browsers I've tried: Chrome, Firefox, IE8.

[uiteoi]

Thanks, I can see the problem. There is an error. Now trying to understand why and where precisely.

There is another problem with the two first lines: they display but there is no interruption at missing points.

[uiteoi]

The bug happens only when option curve_amount is set to zero for which I did not have a test case. I am now working on the fix.

A workaround is to set curve_amount to 1.

[uiteoi]

Thanks again Kirkman for spotting this issue. It is now fixed. Please verify.

[Kirkman]

Verified.