public override void BuildMesh(DirectX.DirectXCanvas canvas, ThreadScroll scroll)
{
DirectX.DynamicMesh builder = canvas.CreateMesh();
builder.Geometry = DirectX.Mesh.GeometryType.Lines;
foreach (EventFrame frame in Group.MainThread.Events)
{
double x = scroll.TimeToUnit(frame.Header).Left;
builder.AddLine(new Point(x, 0.0), new Point(x, 1.0), SplitLines);
}
BackgroundMeshLines = builder.Freeze(canvas.RenderDevice);
DirectX.DynamicMesh builderHeader = canvas.CreateMesh();
builderHeader.AddRect(new Rect(0.0, 0.0, 1.0, (Height - RenderParams.BaseMargin) / scroll.Height), new Color[] { GradientTop, GradientTop, GradientBottom, GradientBottom });
BackgroundMeshTris = builderHeader.Freeze(canvas.RenderDevice);
}