Line YAxis Help

[Mitch]

Hello,

I'm graphing measurement results on a line with RadChart.  My problem is that the YAxis always starts at zero for the graph.  Many of the results may be between 0 and 1.   If the results are always 0, the graph always shows on the bottom of the graph along the X axis.

I'd like to make the YAxis start at say -5 so that the line is graphed in the middle of the graph instead across the bottom Xaxis.

I've played with YAxis Min/Max values, autoscale=false, and nothing seems to change the YAxis from starting at zero.

I've included my radchart definiation in the HTML and code behind pages.

Example results from my stored procedure that I'm graphing:
CollectDate,Reported Result, low range, high range
02/11/2008,      0,     0,    20 
03/10/2009,      1,     0,   20
04/10/2009,     1.5,   0 ,  20
05/10/2009,     1,      0 ,  20

Any help would be appreciated.

Thanks,

Mitch

<telerik:RadChart ID="RadChart1" runat="server" DataSourceID="SqlDataSource3"
            DefaultType="Line" Skin="DeepBlue" Width="750px" Height="225px"
            AutoLayout="True" EnableTheming="True">
            <Series>
<telerik:ChartSeries Name="Reported Result"
                    DataYColumn="Reported Result" Type="Line"  >
    <Appearance>
        <FillStyle MainColor="213, 247, 255" FillType="ComplexGradient">
            <FillSettings>
                <ComplexGradient>
                    <telerik:GradientElement Color="213, 247, 255" />
                    <telerik:GradientElement Color="193, 239, 252" Position="0.5" />
                    <telerik:GradientElement Color="157, 217, 238" Position="1" />
                </ComplexGradient>
            </FillSettings>
        </FillStyle>
        <TextAppearance TextProperties-Color="White">
        </TextAppearance>
    </Appearance>
                </telerik:ChartSeries>
</Series>
            <PlotArea>
                <XAxis AutoScale="False" DataLabelsColumn="collectdate" MaxValue="7"
                    MinValue="1" Step="1" IsZeroBased="true">
                    <Appearance  TextAppearance-TextProperties-Font="Arial, 8.25pt, style=Bold"
                        Color="98, 183, 226" MajorTick-Color="98, 183, 226">
                        <MajorGridLines Color="98, 183, 226" Width="0" Visible="false"/>
                        <TextAppearance TextProperties-Color="White">
                        </TextAppearance>
                    </Appearance>
                    <AxisLabel>
                        <Appearance Dimensions-Paddings="1px, 1px, 10%, 1px">
                        </Appearance>
                        <TextBlock>
                            <Appearance TextProperties-Color="LightSkyBlue">
                            </Appearance>
                        </TextBlock>
                    </AxisLabel>
                   <Items>
                        <telerik:ChartAxisItem Value="1">
                            <TextBlock Text="abc">
                                <Appearance TextProperties-Font="Arial, 8.25pt, style=Bold">
                                </Appearance>
                            </TextBlock>
                        </telerik:ChartAxisItem>
                        <telerik:ChartAxisItem Value="2">
                            <TextBlock Text="abc">
                                <Appearance TextProperties-Font="Arial, 8.25pt, style=Bold">
                                </Appearance>
                            </TextBlock>
                        </telerik:ChartAxisItem>
                        <telerik:ChartAxisItem Value="3">
                            <TextBlock Text="abc">
                                <Appearance TextProperties-Font="Arial, 8.25pt, style=Bold">
                                </Appearance>
                            </TextBlock>
                        </telerik:ChartAxisItem>
                        <telerik:ChartAxisItem Value="4">
                            <TextBlock Text="abc">
                                <Appearance TextProperties-Font="Arial, 8.25pt, style=Bold">
                                </Appearance>
                            </TextBlock>
                        </telerik:ChartAxisItem>
                        <telerik:ChartAxisItem Value="5">
                            <TextBlock Text="abc">
                                <Appearance TextProperties-Font="Arial, 8.25pt, style=Bold">
                                </Appearance>
                            </TextBlock>
                        </telerik:ChartAxisItem>
                        <telerik:ChartAxisItem Value="6">
                            <TextBlock Text="abc">
                                <Appearance TextProperties-Font="Arial, 8.25pt, style=Bold">
                                </Appearance>
                            </TextBlock>
                        </telerik:ChartAxisItem>
                        <telerik:ChartAxisItem Value="7">
                            <TextBlock Text="abc">
                                <Appearance TextProperties-Font="Arial, 8.25pt, style=Bold">
                                </Appearance>
                            </TextBlock>
                        </telerik:ChartAxisItem>
                    </Items>

                </XAxis>
                <YAxis AutoScale="false">
                    <Appearance Color="98, 183, 226" MajorTick-Color="98, 183, 226"
                        MinorTick-Color="98, 183, 226">
                        <MajorGridLines Color="120, 209, 248" />
                        <MinorGridLines Color="120, 209, 248" Width="0" />
                        <TextAppearance TextProperties-Color="White">
                        </TextAppearance>
                    </Appearance>
                    <AxisLabel>
                        <TextBlock>
                            <Appearance TextProperties-Color="LightSkyBlue">
                            </Appearance>
                        </TextBlock>
                    </AxisLabel>
                </YAxis>
                <Appearance Dimensions-Margins="19%, 90px, 12%, 9%">
                    <FillStyle MainColor="50, 255, 255, 255" SecondColor="Transparent">
                    </FillStyle>
                    <Border Color="97, 180, 223" />
                </Appearance>
            </PlotArea>
            <Appearance>
                <FillStyle FillType="ComplexGradient">
                    <FillSettings>
                        <ComplexGradient>
                            <telerik:GradientElement Color="26, 120, 179" />
                            <telerik:GradientElement Color="35, 189, 254" Position="0.5" />
                            <telerik:GradientElement Color="26, 120, 179" Position="1" />
                        </ComplexGradient>
                    </FillSettings>
                </FillStyle>
                <Border Color="0, 66, 110" Width="5" />
            </Appearance>
            <ChartTitle>
                <Appearance Dimensions-Margins="4%, 10px, 14px, 6%">
                    <FillStyle MainColor="">
                    </FillStyle>
                </Appearance>
                <TextBlock Text="">
                    <Appearance TextProperties-Font="Verdana, 14pt" TextProperties-Color="White">
                    </Appearance>
                </TextBlock>
            </ChartTitle>
            <Legend Visible="False">
                <Appearance Dimensions-Margins="1px, 2%, 12%, 1px" Visible="False">
                    <ItemTextAppearance TextProperties-Color="White">
                    </ItemTextAppearance>
                    <FillStyle GammaCorrection="False" MainColor="37, 255, 255, 255">
                    </FillStyle>
                    <Border Color="76, 255, 255, 255" />
                </Appearance>
                <TextBlock>
                    <Appearance Position-AlignedPosition="Top" TextProperties-Color="LightSkyBlue">
                    </Appearance>
                </TextBlock>
            </Legend>
        </telerik:RadChart>

Protected Sub RadChart1_BeforeLayout(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadChart1.BeforeLayout
        Dim HiZone As Decimal
        Dim LoZone As Decimal
' Get Hi and Lo limits for result
        HiZone = GetZoneHi(cboParam.SelectedValue, Request("EquipmentID"), Request("SampleNumber"))
        LoZone = GetZoneLow(cboParam.SelectedValue, Request("EquipmentID"), Request("SampleNumber"))

        RadChart1.Series(0).Appearance.PointMark.Dimensions.AutoSize = False
        RadChart1.Series(0).Appearance.PointMark.Dimensions.Width = 8
        RadChart1.Series(0).Appearance.PointMark.Dimensions.Height = 8
        RadChart1.Series(0).Appearance.PointMark.FillStyle.MainColor = System.Drawing.Color.Black
        RadChart1.Series(0).Appearance.PointMark.Visible = True


        Dim markedzone As ChartMarkedZone = New ChartMarkedZone
        markedzone.ValueStartY = LoZone
        markedzone.ValueEndY = HiZone
        markedzone.Appearance.FillStyle.MainColor = Drawing.Color.Gray

        RadChart1.PlotArea.MarkedZones.Add(markedzone)


        RadChart1.PlotArea.YAxis.MaxValue = (HiZone * 0.25) + HiZone  ' *10
        RadChart1.PlotArea.YAxis.MinValue = -5
        RadChart1.PlotArea.YAxis.AutoScale = True
        Dim markedzone2 As ChartMarkedZone = New ChartMarkedZone

        markedzone2.ValueStartY = 0
        markedzone2.ValueEndY = LoZone
        markedzone2.Appearance.FillStyle.MainColor = Drawing.Color.LightCoral
        RadChart1.PlotArea.MarkedZones.Add(markedzone2)


        Dim markedzone3 As ChartMarkedZone = New ChartMarkedZone

        markedzone3.ValueStartY = HiZone
        markedzone3.ValueEndY = HiZone + (HiZone * 0.25)
        markedzone3.Appearance.FillStyle.MainColor = Drawing.Color.LightCoral
        RadChart1.PlotArea.MarkedZones.Add(markedzone3)

        RadChart1.Chart.Legend.Visible = False
        RadChart1.AutoLayout = True


End Sub

[Schlurk]

I was just playing around with this using the chart wizard today and defining this within the <Yaxis> tag worked for me:

<YAxis AutoScale="False" MaxValue="1000" MinValue="-100" Step="100">

This allowed me to see a little below my graph so that I could properly see my rendered points. The step value should of course be reduced for your 0-1 scenario :)

[Mitch]

That helped, thanks.  After some debugging, I realized that some of my functions that were to bring in the high and low ranges were returning 0s which wasn't helping the cause.

Thanks again,

Mitch