Textblock dyanmic placement WPF

I have a text data. I would like to place the data dynamically to a certain point [Absolute point, it may be (0,0) (10,10) or (100,100)].

Here the problem comes. My requirement is text block's center point should be the base point. How to make it and place it directly on the canvas? [Which means align the absolute point and center point of the textblock]. Because in winforms we can set the alignment property and place it directly. Please check this question .It describes how to move the textblock after placing it on the canvas since actual width can be found.

I have two specific questions

Is it possible to do it in WPF
Is there anyway to find the actual width before placement, in case I can do it as in the other question

Update (Further explanation)::::: This is my Data Template to place the text, I can use TranslateTransform to translate the text as soon as the text is placed on the canvas by using MoveToPoint function mention below.

The real problem come, how to pass the ActualWidth to MoveToPoint inside datatemplate,

XAML

<DataTemplate DataType="{x:Type local:Text}">
    <TextBlock Text="{Binding Description}"
               FontSize= "{Binding Thickness}" 
               RenderTransformOrigin="0.5,0.5" 
               Foreground="#FFF63AFF" 
               FontWeight="Bold" >       
        <TextBlock.RenderTransform>
            <TransformGroup>
                <TranslateTransform X= "{Binding StartPoint.X}" Y= "{Binding StartPoint.Y}"  />                   
                <RotateTransform Angle= "{Binding Angle}"  />
            </TransformGroup>   
        </TextBlock.RenderTransform>  
    </TextBlock>
</DataTemplate>

void MoveToPoint(UIElement sender, Point point)
{
    Canvas.SetLeft(sender, point.X - sender.RenderTransformOrigin.X * sender.ActualWidth);
    Canvas.SetTop(sender, point.Y - sender.RenderTransformOrigin.Y * sender.ActualHeight);
}