Semicircle gauge issue after update

[Rahil Kidwai]

I have a requirement to display some constant statistical data in a semicircular gauge and I am using RadSemicircleNorthGauge control.
To achieve the desired look of the gauge the background properties of the gauge (InnerBackground, OuterBackground, OuterBorderBrush, Background) are all set to transparent. GaugeRange background property is being set appropriately to get the desired look. 
Everything was working fine with  2012 Q1 version, but soon after updating to 2012 Q2 the semi circular gauge is no more semi circular. It's total span now is 270° instead of 180°.
I am pasting the test code below for your reference. Can you please help and let me know how to fix the problem?
Thanks 
-Rahil

<UserControl 
    x:Class="SilverlightApplication1.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
    xmlns:telerikgauge="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.DataVisualization">

    <Grid> 
        <telerikgauge:RadSemicircleNorthGauge MaxHeight="600" MaxWidth="600" InnerBackground="Transparent" OuterBackground="Transparent" OuterBorderBrush="Transparent" Background="Transparent">
            <telerik:RadialScale RangeLocation="Inside"  Min="0" Max="100" MajorTickStep="10" MiddleTicks="1">
                <telerik:RadialScale.Ranges>
                    <telerik:GaugeRange Min="0" Max="40" StartWidth="0.7" EndWidth="0.7" Background="Red"/>
                    <telerik:GaugeRange Min="40" Max="100" StartWidth="0.7" EndWidth="0.7" Background="Green"/>
                </telerik:RadialScale.Ranges>
                <telerik:RadialScale.Indicators>
                    <telerik:Needle Value="40" TailHeight="0" Background="Blue"  BorderBrush="Blue"/>
                    <telerik:Pinpoint Background="Blue" BorderBrush="Blue" />
                </telerik:RadialScale.Indicators>
            </telerik:RadialScale>
        </telerikgauge:RadSemicircleNorthGauge>
    </Grid>
</UserControl>

[Andrey]

Hi Rahil,

In the 2012.Q2 release we introduced a few breaking changes in the gauge control. We’ve added separate scale type for all semicircle and quadrant-style gauges. You can find description of changes here:

http://www.telerik.com/help/wpf/radgauge-what-is-new.html

For example, when you create North oriented quadrant gauge it is not enough to just create right type of the gauge control, but you must use the right type of the scale inside the container. I.e. instead of RadialScale you should use SemicircleNorthScale:

<telerik:RadSemicircleNorthGauge MaxHeight="600"
                 MaxWidth="600"
                 InnerBackground="Transparent"
                 OuterBackground="Transparent"
                 OuterBorderBrush="Transparent"
                 Background="Transparent">
    <telerik:SemicircleNorthScale RangeLocation="Inside"
                  Min="0"
                  Max="100"
                  MajorTickStep="10"
                  MiddleTicks="1">
        <telerik:RadialScale.Ranges>
            <telerik:GaugeRange Min="0"
                Max="40"
                StartWidth="0.7"
                EndWidth="0.7"
                Background="Red"/>
            <telerik:GaugeRange Min="40"
                Max="100"
                StartWidth="0.7"
                EndWidth="0.7"
                Background="Green"/>
        </telerik:RadialScale.Ranges>
        <telerik:RadialScale.Indicators>
            <telerik:Needle Value="40"
                    TailHeight="0"
                    Background="Blue"
                    BorderBrush="Blue"/>
            <telerik:Pinpoint Background="Blue"
                      BorderBrush="Blue" />
        </telerik:RadialScale.Indicators>
    </telerik:SemicircleNorthScale>
</telerik:RadSemicircleNorthGauge>

Kind regards,

Andrey Murzov

the Telerik team