I posted about this recently, but it hasn't shown up. Turns out there's a bug in DateTimeAxis, fixed in 3.4
http://bugs.adobe.com/jira/browse/FLEXDMV-2043 On Wed, Mar 17, 2010 at 5:53 AM, netdeep <[email protected]> wrote: > > > > I have an app which displays any type of chart based on actionscript class > definitions. It can't be done in mxml because the charts get drawn at > runtime. It has worked fine until recently. The daylight savings time change > has made it go all out of whack. I rebuilt a sample version in mxml however > and it displays correctly. I've attempted to mimic this in a hard coded > actionscript version as well but it just doesn't work. > > In the code below, the columnWidthRatio is set to 1.1 so that the columns > slightly overlap, but in the actionscript version, the bars are tiny with > wide gaps between them. Also, if I set the labelUnits to 'hours', the chart > won't work at all. It won't even draw anything, but just times out. > > I am using Flex 3.3 on a Mac. I've also tried Flex 3.5a but it didn't work > with that either. > > [Bindable] > public var DECKER:Array = [ > {point1:"Tue Mar 16 00:00:00 GMT-0400 2010", point2:6.021350380920805}, > {point1:"Mon Mar 15 00:00:00 GMT-0400 2010", point2:12.432308140005917}, > {point1:"Sun Mar 14 00:00:00 GMT-0500 2010", point2:19.558957234168425} > ]; > > // actionscript version which doesn't work > public function makeDateChart(genericChart:CartesianChart, > genericLegend:Legend, chartPanel:ChartPanel, chart:ChartObject):void { > > // ChartObject is a custom object which holds display information > // as well as al the SeriesObjects (see below) > var axisList:ArrayCollection = chart.getAxisList(); > var seriesArray:Array = new Array(); > > var hAxis:DateTimeAxis = new DateTimeAxis(); > > for (var i:int=0; i<axisList.length; i++) { > var axis:AxisObject = axisList.getItemAt(i) as AxisObject; > if (axis.getID() == "x Axis") { > hAxis.labelUnits = "days"; > genericChart.horizontalAxis = hAxis; > } > else { > // Define vertical axis > var vAxis:LinearAxis = new LinearAxis(); > genericChart.verticalAxis = vAxis; > > for (var j:int=0; j<axis.getSeriesList().length; j++) { > // custom data object which holds data and display settings > var ser:SeriesObject = axis.getSeriesList().getItemAt(j) as SeriesObject; > > var columnSeries:ColumnSeries = new ColumnSeries(); > // bind data...It doesn't matter if I bind 'pointList' or DECKER to this > // either way it doesn't work for columnSeries- it does work for the > // mxml object testCol (see prev post for static version of chart) > BindingUtils.bindProperty(columnSeries, "dataProvider", this, "DECKER"); > BindingUtils.bindProperty(colSer, "dataProvider", this, "DECKER"); > // pointList would be used for the dynamic version > // BindingUtils.bindProperty(columnSeries, "dataProvider", ser, > "pointList"); > // BindingUtils.bindProperty(colSer, "dataProvider", ser, "pointList"); > columnSeries.columnWidthRatio = 1.1; > // columnSeries.displayName = ser.name; > columnSeries.xField="point1"; > columnSeries.yField="point2"; > seriesArray.push(columnSeries); > } > } > } > > genericChart.series = seriesArray;//.toArray().reverse(); > genericChart.percentWidth = 100; > genericChart.showDataTips = true; > > var hb:HBox = new HBox(); > > hb.addChild(genericChart); > this.addChild(hb); > } > > <!-- mxml version which works --> > <mx:HBox backgroundColor="white"> > <mx:CartesianChart showDataTips="true" id="testCol" > > > <mx:horizontalAxis> > <mx:DateTimeAxis labelFunction="fullTimeLabelFunction" dataUnits="days"/> > </mx:horizontalAxis> > > <mx:verticalAxis> > <mx:LinearAxis /> > </mx:verticalAxis> > > <mx:series> > <mx:ColumnSeries id="colSer" columnWidthRatio="1.1" yField="point2" > xField="point1" displayName="points"/> > </mx:series> > > </mx:CartesianChart> > </mx:HBox> > > > >
