Drawing on the XAxis

Hi again,

Regarding my suggestion, it allows you to avoid drawing on the ModifierAxisCanvas in your modifier. You could add something like this:

                <s:VerticalLineAnnotation VerticalAlignment="Stretch"
                                          . . .
                                          IsEditable="True">
                    <s:VerticalLineAnnotation.Resources>
                        <Style x:Key="labelStyle" TargetType="s:AnnotationLabel">
                            <Setter Property="Template">
                                <Setter.Value>
                                    <ControlTemplate TargetType="s:AnnotationLabel">
                                        <Grid>
                                            <!-- Triangular marker -->
                                            <Path Fill="{Binding Stroke}">
                                                <Path.Data>
                                                    <PathGeometry Figures="M7.5625,0 L-0.4995,15.4375 15.438,15.561996 z" FillRule="NonZero" />
                                                </Path.Data>
                                            </Path>

                                            <TextBox x:Name="PART_InputTextArea" Visibility="Collapsed" />
                                        </Grid>
                                    </ControlTemplate>
                                </Setter.Value>
                            </Setter>
                        </Style>
                    </s:VerticalLineAnnotation.Resources>
                    <s:AnnotationLabel AxisLabelStyle="{StaticResource labelStyle}" />
                </s:VerticalLineAnnotation>

Concerning the second issue, it is easy to achieve by modifying the SciChart template in Themes. Unfortunately, I can’t realize how to do that in another way (maybe inheriting the SciChartSurface and overriding its OnApplyTemplate method and changing VisualTree manually inside). But there is a workaround: you could draw ticks with a longer length (need to set the MajorTickLineStyle, MinorTickLineStyle properties, style’s TargetType is Line).

If there are another ideas how to manage it, I’ll get back to you.

Best regards,
Yuriy