X grid lines do not work with category values

[jkleint]

If you have an axis with type category, trying to use an X grid line with a value of a category name fails to draw the grid line. Using the category index still works. This is with commit 56d9d45 (v 0.4.7).

http://jsfiddle.net/9dqn7cq4/1/

var chart = c3.generate({
    data: {
        columns: [
            ['sample', 30, 200, 100, 400, 150, 250]
        ]
    },
    axis: {
        x: {
            type: 'category',
            categories: ['a', 'b', 'c', 'd', 'e', 'f'],
        }
    },
    grid: {
        x: {
            //lines: [{value: 3, text: 'Label 3'}]   // This "works," but probably isn't what you want
            lines: [{value: 'd', text: 'Label d'}]   // This does not work as of 56d9d450f1
        }
    }
});

[aendra-rininsland]

Confirming, marking as bug.

[masayuki0812]

Now this feature got supported. I'll release this in the next version v0.4.8.

[masayuki0812]

v0.4.8 has been released, so please let me close.