yAxis minimum weird problem

[darie]

Hello,

I have a simple application that renders a graph. yAxis represents the rank of a blog.

Check http://ratified.org/graph/rank_graph.php?blog_id=2 and then check http://ratified.org/graph/rank_graph.php?blog_id=142

My question is : why on first link the yAxis starts from value 1 and for the second link, the starting value is 0 ?

I have set the minimum value using min variable and also setExtremes() however i see the value is not set correctly, its set to 1 depending on the data series? I use highcharts 1.2.6.

What i want to accomplish is to set the minimum value on yAxis to 1.

If anybody can help me i will definetely appreciate!

Thanks.
Darie Nicolae

[torstein.honsi]

Hi Darie,

The startOnTick option is by default set to true, that's why one of the charts extends the yAxis to 0, the closest tick. To prevent this, set startOnTick to false.

[darie]

Hello,

Thanks for the quick answer. This fixed the problem however the starting point on yAxis its not 1.

If you check again http://ratified.org/graph/rank_graph.php?blog_id=142 you'll see it starts from value 100 ?

Is it possible to set the first value to show 1 always?

Regards,
Darie Nicolae

[torstein.honsi]

Currently you can't do that - Highcharts will only show values on the ticks.

Edit: you can cut off the axis and put a static label on for the number 1, using http://www.highcharts.com/ref/#labels.

[darie]

Hello,

How exactly i can set the static label? I have tried smth like following and it doesnt work. Do i set the label only for value 1 or i need to set all the values from yAxis as labels?

yAxis: {
labels: {
items: [1]
},
tickPixelInterval: 40,
startOnTick: false,
gridLineWidth: 1,
min: 1,
allowDecimals: false,
reversed: true,
title: {
text: 'Rank'
}
},

Regards,
Darie Nicolae

[darie]

Actually the code ive posted was wrong. If you check now i got this using the label :

http://ratified.org/graph/rank_graph.php?blog_id=142

However this looks a bit awful. I didnt thought its so hard to make the yAxis to start from value 1.

For min: 2, it starts from value two. For min: 1 it starts from 0.. whats the idea?:)

Regards,
Darie Nicolae

[darie]

Is it possible to make the yAxis first value to be 1 ?!

If yes, how i can do that ? (without static labels)
If not, why not?!

An answer will definetely help me so i can take a decision if I will still use highcharts or not.

Thanks.

[not]

Hi @darie,

here you have an example of using the xAxis.min/max and plotOptions.series.pointStart.
You will find the description of these options at http://www.highcharts.com/ref/#xAxis and http://www.highcharts.com/ref/#plotOptions-series.

I hope it will bring you round to stay with highcharts :)

[darie]

Thanks for the response, however this will not work correctly.

Try to do the following simple thing:

remove max: 5 from yAxis and replace the series data with data: [400,400,200,4].

You will see the yAxis will start from 0 and not from 1 (even if min is 1).

However ive been lookin into the source code and ive hardcoded to put the tickPositions[0] = 1. (It starts from 1, but something else gets broken).

It seems its kind of impossible to make the minimum value to be 1 when you have series of data containing numbers like 100,200,300, etc.

Let me know if you can help me with this cause i just can't get it done and i dont want to give up on highcharts

Thanks!

[not]

There is an option: yAxis.startOnTick which lets you omit the 0 tick on yAxis in your example.
Look at this: http://jsfiddle.net/rwNkk/

[darie]

Yes, thats true.

But check my script how it looks in the end trying startOnTick:

http://ratified.org/graph/rank_graph.php?blog_id=142

The yAxis doesn't show great this way, i mean theres no starting point (not really profesional). I am doing this for a guy as a project and he doesn't like that at all.

I think in the end i will be forced by the client to use other chart cause (i don't like too but it seems i've got no choice).

[darie]

I would like also to show you this (maybe you can give me a hint).

I have hardcoded tickPositions[0] to be 1. This is what i get : http://ratified.org/graph/rank_graph2.php?blog_id=142

yAxis is good but the first column from xAxis (Jul 12) doesn't show up, (this happens if i set tickPositions[0] = 1).

Do you know maybe if i can get a fix for this?

Thanks

[torstein.honsi]

Try a conditional:

Code: Select all

if (!isXAxis) {
	tickPositions[0] = 1;
}

[darie]

Doh, i feel stupid.

http://ratified.org/graph/rank_graph.php?blog_id=142

Finally it shows perfect.

Thanks a lot for all the help and i really appreciate it! Maybe there should be a forcedMin setting in the future.

[torstein.honsi]

Maybe there should be a forcedMin setting in the future.

Actually I think what you want is an option to show a tick and a tick label for the minimum, regardless of whether it is a "round" number or not. In your case, the minimum is correct, you only missed the tick label.