Crosshair not working on last datapoint

[ManniAT]

Hi,

I have a chart like this.

<ej-chartid="container"can-resize="true"theme="@Syncfusion.JavaScript.DataVisualization.ChartTheme.GradientDark">
			<e-row-definitions>
				<e-row-definitionrow-height="50"unit="Percentage">e-row-definition>
				<e-row-definitionrow-height="50"unit="Percentage">e-row-definition>
			e-row-definitions>
			<e-primary-x-axisvalue-type="@AxisValueType.Datetime"label-intersect-action="@LabelIntersectAction.Hide"label-format="HH:mm"/>
			<e-primary-y-axisvisible="true"name="tempAxis"row-index="0"edge-label-placement="@Syncfusion.JavaScript.DataVisualization.EdgeLabelPlacement.Hide">
				<e-titletext="Temp.°C">e-title>
				<e-axis-linevisible="true"color="Red"width="3">e-axis-line>
			e-primary-y-axis>
			<e-axes>
				<e-axisname="yAxis3"opposed-position="false"orientation="Vertical"row-index="1"label-format="{value}%"edge-label-placement="@Syncfusion.JavaScript.DataVisualization.EdgeLabelPlacement.Hide">
					<e-rangemax="@(Model.MaxRelativeHumidity/5)*5+5"min="@((Model.MinRelativeHumidity-2)/5)*5"interval="5"/>
					<e-major-grid-linescolor="SteelBlue"width="0.5"/>
					<e-titletext="RH%">e-title>
					<e-axis-linevisible="true"color="SteelBlue"width="3"/>
				e-axis>
				<e-axisname="yAxis2"opposed-position="true"orientation="Vertical"row-span="2"row-index="0"edge-label-placement="@Syncfusion.JavaScript.DataVisualization.EdgeLabelPlacement.Shift">
					<e-rangemax="@((Model.MaxCO2+25)/50)*50+50"min="@((Model.MinCO2-25)/50)*50"interval="50"/>
					<e-major-grid-linescolor="green"width="0.5"/>
					<e-titletext="CO²ppm">e-title>
					<e-axis-linevisible="true"color="Green"width="3">e-axis-line>
				e-axis>
			e-axes>
			<e-titletext="@Model.CurrentData.ReadDateUTC.ToLongDateString()">e-title>
			<e-sizeheight="500">e-size>
			<e-legendvisible="true">e-legend>
			<e-crosshairtype="@CrosshairType.Trackball"visible="true"/>			
			<e-common-series-optionstype="@SeriesType.Line"datasource="@Model.Records"enable-animation="true">
			e-common-series-options>
			<e-chart-series>
				<e-seriesname="Temp."fill="Red"y-axis-name="tempAxis"z-order="300"x-name="ReadDateUTC"y-name="Temperature">
				e-series>
				<e-seriesname="CO²"fill="green"y-axis-name="yAxis2"z-order="100"x-name="ReadDateUTC"y-name="CO2">
				e-series>
				<e-seriesname="RH"fill="SteelBlue"y-axis-name="yAxis3"z-order="200"x-name="ReadDateUTC"y-name="RelativeHumidity">
				e-series>
			e-chart-series>
		ej-chart>

While it works very well in common I have a little problem with the crosshair.

When I go to the right I can't get the last datapoint.The crosshairalways disappears after the last -1 point.

I guess this is because the axis overlays somehow the dataline...

BUT - I can get the first point without problems.

Is there a way to define an offset or a z-order?
By the way - in some seldom situations it works but most of the time not...

You can see the chart live here: http://manniat.com/MyHome/Graph

You can check latest datapoints at http://manniat.com/MyHomeand you'll notice that exactly one is missing with the crosshair.

Another thing- while I love what it does - I confused why it does it...

The time is shown in local time (I did nothing to make this happen) on the chart although I transfer it in UTC (just check the data which is comming down...).

Does the chart know about UTC? And what if I would like to see it in UTC (not in local time)?

Thank you

Manfred

[Saravana Kumar Kanagavel]

Hi Manfred, 

 

Thanks for contacting Syncfusion Support. 

 

We have analyzed your queries and please find the response for your queries. 

 

Query 1 : I guess this is because the axis overlays somehow the dataline... 

 

We have confirmed this is an issue. So we have logged bug report on“Trackball doesn’t rendering properly when using multiple axes” for this.  

 

We have created an incident under your account, we request you to follow up for further assistance.  

  

https://www.syncfusion.com/account/login  

 

Query 2  : Does the chart know about UTC? And what if I would like to see it in UTC (not in local time)? 

 

Please refer this below KB link to know more details about UTC with Chart. 

 

KB Link : https://www.syncfusion.com/kb/7682/how-to-display-axis-labels-in-server-time-zone 

  

Please let us know if you have any other assistance on this.  

 

Regards, 

Saravana Kumar K. 

[ManniAT]

Hi Saravana,

thank you for the comprehensive information and the fast response.

Manfred

[Saravana Kumar Kanagavel]

Hi Manfred, 

Thanks for your update. 

Please let us know if you need any other assistance on this. 

Regards, 

Saravana Kumar K.