Allow the ability to configure tick spacing on logarithmic axes

[gmauriello]

Hi, I have the following issue:

I have a chart with a logarithmic scale on the x axis.
But there are some point that don't have a label on the x axis.
So i changed the property StepSize (Increasing the number of steps, With the autoskip property on false), but the ticks number is still the same. How can i solve ? thanks

[etimberg]

@gmauriello do you have a fiddle that reproduces this?

[gmauriello]

@etimberg here it is, https://codepen.io/gmauriello/pen/MQYYrb

As you can see there are intermediate values (e.g. 25 or 15) but although the autoSkip property is set to false, i can't insert a label on the y axis for those points. In the callback function only the following values are available:

[30, 20, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1]

[etimberg]

Right, that's currently because the logarithmic scale only generates ticks at multiples of powers of 10. Tagging as an enhancement to add more configuration options for logarithmic scales

[gmauriello]

Besides, I also need to change the y max value for the y-axis.

I've tried to change the 'suggestedMax' property in 'ticks':
ticks: { suggestedMax: 50 }
But it doesn't work.
The only way that I've found to change the max value is to set the 'max' property in 'ticks':
ticks: { max: 50 }
but in this case, if I hide alle the datasets, the browser crashes. How can I solve ?

You can try it here: https://codepen.io/gmauriello/pen/MQYYrb

[etimberg]

I believe suggestedMax only applies to linear axes

[gmauriello]

@etimberg so it is not possible to set a max value for logarithmic axes ?

[etimberg]

Not in the same way as linear axes. I think it should be easy to resolve though.