LineChart ylabels

[PhilJay]

I have an issue concerning the labels on the y-axis of the LineChart.

For some reason, I have weird numbers appearing below the actual labels of my LineChart.

See the image here: (0 - 7 are my actual numbers, the large numbers below are the ones I'm talking about)

Anyone know how to fix this?

[kevinzhow]

Are you using the latest version 0.5.6 ?
if you are, please post you code, so that I can debug on my side.

[PhilJay]

Thank you for your fast response. Yes I am using the latest version 0.5.6
As a matter of fact I was just able to resolve the issue by myself.

For everyone facing the same issue:

I was setting the data for the chart "in a wrong way":

lineChart.chartData = [];

for .... {
     var lineData = PNLineChartData();
    // build data object...

    lineChart.chartData.append(lineData);
}

In order to get rid of the issue, add your data like this:

var data: [AnyObject] = [];

for .... {
     var lineData = PNLineChartData();
    // build data object...

    data.append(lineData);
}

lineChart.chartData = data;

For some reason, PNChartData objects cannot be appended one by one to the chartData array. You need to set the whole array at once.

Thank you anyway, great library!

[kevinzhow]

Yes, this lib was not designed for updating data dynamically.
But I am having fun with making it happen.

[PhilJay]

Yep, good to know!

Follow up question: Is there any way to reduce the space between x-labels and the lower (bottom) points of the lines? As you can see in my image there is quite a lot of space:

[kevinzhow]

Well, You need to dive into the source code.
For the first question.
https://github.com/kevinzhow/PNChart/blob/master/PNChart/PNLineChart.m#L107

For the 2nd one
https://github.com/kevinzhow/PNChart/blob/master/PNChart/PNLineChart.m#L283

[PhilJay]

Thank you for pointing out the correct lines in the source code to look at. I just modified it to my desires!

Again, great library!