diff --git a/src/Chart.vala b/src/Chart.vala
index 0997c13..b9c322e 100644
--- a/src/Chart.vala
+++ b/src/Chart.vala
@@ -212,50 +212,6 @@ namespace CairoChart {
 
 		public double marker_size = 8.0;
 
-		public virtual void draw_marker_at_pos (Series.MarkerType marker_type,
-		                                           double x, double y) {
-			context.move_to (x, y);
-			switch (marker_type) {
-			case Series.MarkerType.SQUARE:
-				context.rectangle (x - marker_size / 2, y - marker_size / 2,
-				                   marker_size, marker_size);
-				context.fill();
-				break;
-
-			case Series.MarkerType.CIRCLE:
-				context.arc (x, y, marker_size / 2, 0, 2*Math.PI);
-				context.fill();
-				break;
-
-			case Series.MarkerType.TRIANGLE:
-				context.move_to (x - marker_size / 2, y - marker_size / 2);
-				context.line_to (x + marker_size / 2, y - marker_size / 2);
-				context.line_to (x, y + marker_size / 2);
-				context.line_to (x - marker_size / 2, y - marker_size / 2);
-				context.fill();
-				break;
-
-			case Series.MarkerType.PRICLE_SQUARE:
-				context.rectangle (x - marker_size / 2, y - marker_size / 2,
-				                   marker_size, marker_size);
-				context.stroke();
-				break;
-
-			case Series.MarkerType.PRICLE_CIRCLE:
-				context.arc (x, y, marker_size / 2, 0, 2*Math.PI);
-				context.stroke();
-				break;
-
-			case Series.MarkerType.PRICLE_TRIANGLE:
-				context.move_to (x - marker_size / 2, y - marker_size / 2);
-				context.line_to (x + marker_size / 2, y - marker_size / 2);
-				context.line_to (x, y + marker_size / 2);
-				context.line_to (x - marker_size / 2, y - marker_size / 2);
-				context.stroke();
-				break;
-			}
-		}
-
 		public Line.Style selection_style = Line.Style ();
 
 		public virtual void draw_selection (double x0, double y0, double x1, double y1) {
@@ -994,7 +950,7 @@ namespace CairoChart {
 					var x = get_scr_x(s, points[i].x);
 					var y = get_scr_y(s, points[i].y);
 					if (point_in_plot_area (Point (x, y)))
-						draw_marker_at_pos(s.marker_type, x, y);
+						Marker.draw_at_pos(this, s.marker_type, x, y, marker_size);
 				}
 			}
 		}
diff --git a/src/Legend.vala b/src/Legend.vala
index 31a9594..98d3d63 100644
--- a/src/Legend.vala
+++ b/src/Legend.vala
@@ -152,7 +152,11 @@ namespace CairoChart {
 					s.line_style.set(chart);
 					chart.context.rel_line_to (line_length, 0);
 					chart.context.stroke();
-					chart.draw_marker_at_pos (s.marker_type, x + line_length / 2, y - title_sz.height / 2);
+					Marker.draw_at_pos (chart,
+					                           s.marker_type,
+					                           x + line_length / 2,
+					                           y - title_sz.height / 2,
+					                           chart.marker_size);
 					break;
 				}
 
diff --git a/src/Marker.vala b/src/Marker.vala
new file mode 100644
index 0000000..a12b651
--- /dev/null
+++ b/src/Marker.vala
@@ -0,0 +1,54 @@
+namespace CairoChart {
+
+	public class Marker {
+
+		public static void draw_at_pos (Chart chart,
+		                                Series.MarkerType marker_type,
+		                                double x,
+		                                double y,
+		                                double marker_size = 8.0) {
+			chart.context.move_to (x, y);
+			switch (marker_type) {
+			case Series.MarkerType.SQUARE:
+				chart.context.rectangle (x - marker_size / 2, y - marker_size / 2,
+				                   marker_size, marker_size);
+				chart.context.fill();
+				break;
+
+			case Series.MarkerType.CIRCLE:
+				chart.context.arc (x, y, marker_size / 2, 0, 2*Math.PI);
+				chart.context.fill();
+				break;
+
+			case Series.MarkerType.TRIANGLE:
+				chart.context.move_to (x - marker_size / 2, y - marker_size / 2);
+				chart.context.line_to (x + marker_size / 2, y - marker_size / 2);
+				chart.context.line_to (x, y + marker_size / 2);
+				chart.context.line_to (x - marker_size / 2, y - marker_size / 2);
+				chart.context.fill();
+				break;
+
+			case Series.MarkerType.PRICLE_SQUARE:
+				chart.context.rectangle (x - marker_size / 2, y - marker_size / 2,
+				                   marker_size, marker_size);
+				chart.context.stroke();
+				break;
+
+			case Series.MarkerType.PRICLE_CIRCLE:
+				chart.context.arc (x, y, marker_size / 2, 0, 2*Math.PI);
+				chart.context.stroke();
+				break;
+
+			case Series.MarkerType.PRICLE_TRIANGLE:
+				chart.context.move_to (x - marker_size / 2, y - marker_size / 2);
+				chart.context.line_to (x + marker_size / 2, y - marker_size / 2);
+				chart.context.line_to (x, y + marker_size / 2);
+				chart.context.line_to (x - marker_size / 2, y - marker_size / 2);
+				chart.context.stroke();
+				break;
+			}
+		}
+	}
+}
+
+