Strange Issue With Candlestick Charts (Scaling Of Y Axis)

[TimDG]

Hi,

 

I'm trying out the FusionCharts and PowerCharts graph libraries and I've noticed some odd occurences with the candle stick charts. It appears as if the Y-axis isn't always long enough to show all data.

 

Chart 1:

{"chart":{"exportShowMenuItem":"0","exportFormats":"PDF=Export as PDF","caption":"Some more data","exportAction":"download","exportEnabled":1,"exportHandler":"/export.do","exportAtClient":"0","html5ExportHandler":"/export.do"},"categories":[{"category":[{"x":"1","label":"1"},{"x":"2","label":"2"},{"x":"3","label":"3"},{"x":"4","label":"4"},{"x":"5","label":"5"}]}],"dataset":[{"data":[{"open":"23.18","close":"24.02","high":"26.44","low":"22.8","x":"1"},{"open":"23.14","close":"23.54","high":"23.68","low":"22.7","x":"2"},{"open":"22.29","close":"21.46","high":"22.67","low":"20.9","x":"3"},{"open":"26.17","close":"25.88","high":"27.47","low":"23.9","x":"4"},{"open":"20.5","close":"21.2","high":"21.48","low":"20.5","x":"5"}]}]}

Result:

 

 

Chart 2:

{"chart":{"exportShowMenuItem":"0","exportFormats":"PDF=Export as PDF","caption":"Some more data","exportAction":"download","exportEnabled":1,"exportHandler":"/export.do","exportAtClient":"0","html5ExportHandler":"/export.do"},"categories":[{"category":[{"x":"1","label":"1"},{"x":"2","label":"2"},{"x":"3","label":"3"},{"x":"4","label":"4"},{"x":"5","label":"5"}]}],"dataset":[{"data":[{"open":"22.63","close":"22.15","high":"23.78","low":"21.8","x":"1"},{"open":"23.26","close":"23.47","high":"24.06","low":"23.2","x":"2"},{"open":"23.94","close":"24.8","high":"26.54","low":"23.3","x":"3"},{"open":"23.6","close":"25.01","high":"26.97","low":"22.7","x":"4"},{"open":"25.66","close":"26.31","high":"26.63","low":"24.6","x":"5"}]}]}

 

Result:

 

Chart 3:

 

{"chart":{"exportShowMenuItem":"0","exportFormats":"PDF=Export as PDF","caption":"Some more data","exportAction":"download","exportEnabled":1,"exportHandler":"/export.do","exportAtClient":"0","html5ExportHandler":"/export.do"},"categories":[{"category":[{"x":"1","label":"1"},{"x":"2","label":"2"},{"x":"3","label":"3"},{"x":"4","label":"4"},{"x":"5","label":"5"}]}],"dataset":[{"data":[{"open":"25.06","close":"25.58","high":"26.69","low":"24.7","x":"1"},{"open":"25.3","close":"26.14","high":"26.92","low":"25.0","x":"2"},{"open":"25.11","close":"25.85","high":"28.31","low":"24.5","x":"3"},{"open":"25.13","close":"24.52","high":"28.21","low":"23.6","x":"4"},{"open":"24.2","close":"25.67","high":"28.23","low":"23.8","x":"5"}]}]}

 

Result:

 

I'm using a complete javascript implementation and the jquery plugin to load the charts.

 

I currently allow the user to select 4 charts to be displayed on a single page with random contents. This is the code I use to load the graphs:

 

   var $container = $("#chartContainer" + index).insertFusionCharts({
   	swfUrl:graph,
   	renderer:'javascript',
   	dataSource:"/report.do?type=" + type,
   	dataFormat:"jsonurl",
   	width:"550",
   	height:"300",
   	registerWithJS:'1',
   	id:"myChartId" + index
}).data("exportId", "#export" + index)
   	.bind("fusionchartsdrawcomplete", drawComplete);

 

graph and type indicate the type of graph and the contents as they should be returned by the server. Index is an integer from 0 to 3, identifying both the graph as well as the div where the chart should be placed.

 

Do you have any idea what could be causing this?

 

Thanks in advance.

 

Regards,

Tim.

[Guest Bindhu]

Hi,

 

Welcome to the FusionCharts Forum

 

Thank you for the post.

 

We are looking into it and would get back to you as soon as possible.

 

In the mean time, please try and use the attribute "pYAxisMaxValue" and set it an appropriate value.

 

Hope this helps!

Edited August 8, 2012 by Bindhu

[TimDG]

Hi,

 

Welcome to the FusionCharts Forum

 

Thank you for the post.

 

We are looking into it and would get back to you as soon as possible.

 

In the mean time, please try and use the attribute "pYAxisMaxValue" and set it an appropriate value.

 

Hope this helps!

 

 

Hi,

 

Thanks for the quick reply. Setting that attribute seems to do the trick: the graphs now render properly.

[Guest Bindhu]