Comments on: Taking Control of Flex Charting Styles

By: millag

millag — Mon, 15 Dec 2008 18:10:46 +0000

Hi , I want to ask about how the LineChart decides to clip it’s content . I have this kind of problem:
lets say that there is only one series for the chart and dataProvider for this series contains dataPoints all with zero value for the verticalAxis .The problem is that sometimes the chart decides to clip all the lines connecting dataPoints resulting in nothing being shown on the chart.Can this clipping be avoided somehow ?
many thanks
ps excuse me for my bad english

By: nikki08

nikki08 — Fri, 26 Sep 2008 14:41:19 +0000

and if to set the fixed horizontal axis, which does not change according to the amount of data, as would have to do?

By: Ryan

Ryan — Sat, 30 Aug 2008 20:32:30 +0000

@Amy - good catch. The labelGap is a much simpler solution, and I have updated my sample code to reflect this.

@marco - yes, you can place items in the “backgroundElements” property of the chart. The only catch is that they have to extend ChartElement, so if you want to place an image for example, you would have to wrap it in a custom class.

By: marco

marco — Fri, 29 Aug 2008 08:26:06 +0000

Is it possible to fill the linechart background with custom graphics?
Many tanks

By: Amy

Amy — Thu, 24 Jul 2008 01:54:39 +0000

How much difference is there between using your tick marks set to the background color and placed outside of the axes and using the labelGap on the axes?

By: Ryan

Ryan — Fri, 13 Jun 2008 16:43:46 +0000

Yes, the Gridlines tag has the styles “verticalFill”, “verticalAlternateFill”, “horizontalFill” and “horizontalAlternateFill”. In this example you would use the vertical fills for the BarChart and horizontal fills for the ColumnChart and LineChart.

You should consider the fact that the fills will add some clutter to the graph which could reduce readability in some cases, but if you do choose to use them, I would suggest using the background color (white) for the vertical fill and a very light gray (like #F2F2F2) for the alternateFill.

By: Ritu

Ritu — Thu, 05 Jun 2008 05:19:11 +0000

can we provide alnate row colors in charts background in flex?