CALayerInvalidGeometry exception for duplicate & zeroed data points

[sankaet]

This thing is amazing!!! But one bug that I found so far: Everything works perfectly except for the time when all the data points have the same value. Then it gives this error:

'CALayerInvalidGeometry', reason: 'CALayer position contains NaN: [0 nan]'

[WolfJake]

This line of code allows the insertion of all points with the same value

float maxValue = [self maxValue] == 0 ? 0.1 : [self maxValue];

[Sam-Spencer]

The Issue
This crash is caused when your data source submits a zero-value as a data point. It occurs inside the drawGraph method while trying to iterate through the data points.

Possible Solutions
A good workaround solution is to submit a number very close to zero, but not zero. @WolfJake has a good snippet that may be helpful.

Because this is a known issue, it is strongly recommended that you check your dataSource before submitting it to BEMSimpleLineGraph. Ensure that your datasource has no zero values or duplicate values. If it has zero values, just submit values which are a fraction larger than zero (eg. 0.01). If it has duplicate values you may need to increment one of the duplicates very slightly.

Bug Fix Status
This issue is partially fixed on the feature branch of this repo. It should be fully fixed in a future commit.

[Boris-Em]

Closed as fixed with version 1.3. Thank you for pointing this out.