public void OnNextPoint(AnnotationPoint point)
{
// translate points from surface size to 0-1 range size
var pt = new AnnotationPoint {
X = point.X / surfaceSize.Width, Y = point.Y / surfaceSize.Height
};
if (pt.X < 0 || pt.Y < 0 || pt.X > 1 || pt.Y > 1)
{
return; // reject this point if outside bounds
}
if (type == AnnotationType.AdHoc)
{
this.annotation.Points.Add(pt); // ad hoc always just adds more points
}
else
{
// the rest will only have at most two points, the first point and the last point touched
if (this.annotation.Points.Count <= 1)
{
this.annotation.Points.Add(pt);
}
else
{
this.annotation.Points[1] = pt;
}
}
}
public static AnnotationPoint ConvertFromStandardRangeToSurface(AnnotationPoint point, AnnotationSurfaceSize surface)
{
return(new AnnotationPoint {
X = point.X * surface.Width, Y = point.Y * surface.Height
});
}