Summary:
This drawing script is used for measuring the price difference, percent distance and time difference between two points on a chart.

                    
#region Namespaces using System; #endregion namespace ScriptCode { /// <summary> /// Drawing scripts are used for drawing a visual object. /// /// This script can be used in several ways: /// (1) It can be used on a chart by clicking the chart in order to set the drawing's anchor points. /// (2) It can be used from another script by having that script set the drawing's anchor points. /// </summary> public partial class MyDrawing : DrawingScriptBase // NEVER CHANGE THE CLASS NAME { #region Variables #endregion #region OnInitialize /// <summary> /// This function is called when a new drawing instance is created. /// </summary> /// -------------------------------------------------------------------------------------------------- /// THIS FUNCTION MUST ACCEPT THE SYMBOL INDEX PARAMETER AND SHOULD NOT ACCEPT ANY OTHER PARAMETERS. /// -------------------------------------------------------------------------------------------------- /// <param name="symbolIndex" type="Symbol" default="">The underlying symbol index for the drawing.</param> public void OnInitialize(int symbolIndex) { // Initialize the drawing for the symbol to accept 2 anchor points. DrawingInitialize(symbolIndex, 2); } #endregion #region OnChartSetup /// <summary> /// This function is used for setting up the drawing on the chart and registering its pens (see the DrawingRegisterPen function). /// </summary> public override void OnChartSetup() { // Register the pen with which to draw the ruler. DrawingRegisterPen("Ruler Pen", new byte[] { 5, 110, 180, 255 }, AT_DashStyle.SOLID, 2); } #endregion #region OnDraw /// <summary> /// This function is used to draw the drawing by setting all of its anchor points, lines and labels on a virtual canvas. /// The canvas x-axis values are the date and time of the underlying symbol bars and its y-axis values are the symbol prices. /// /// The location of the drawing on the canvas is specified by the drawing anchor points, which can either be specified by /// clicking on a chart or from another script (see the Drawing functions). /// </summary> public override void OnDraw() { // Get the number of decimals for the symbol. int symbolDecimals = SymbolDecimals(SymbolIndex()); // Get the X value of anchor point 0. int x1 = DrawingAnchorPointBarShift(0); // Get the Y value of anchor point 0. double y1 = Math.Round(DrawingAnchorPointValue(0), symbolDecimals); // Get the X value of anchor point 1. int x2 = DrawingAnchorPointBarShift(1); // Get the Y value of anchor point 1. double y2 = Math.Round(DrawingAnchorPointValue(1), symbolDecimals); // Calculate the tick difference. double ticks = Math.Round(Math.Round(Math.Abs(y2 - y1), symbolDecimals) / SymbolTick(SymbolIndex()), 0); // Calculate the change difference. double CD = 100 * Math.Abs(y2 - y1) / Math.Min(y1, y2); // Calculate the time difference. string TD = TimeSpan.FromTicks(Math.Abs(BarStartDateTime(SymbolIndex(), x1) - BarStartDateTime(SymbolIndex(), x2))).ToString(); // Set the entry string. string entry = "Start: " + y1; // Set the exit string. string exit = "End: " + y2 + " | " + ticks + "T | " + Math.Round(CD, 2) + "%" + "\n" + TD + " | " + Math.Abs(x2 - x1) + "B"; // Draw the trendline. DrawingSetLine("Ruler Pen", x1, y1, entry, x2, y2, exit); } #endregion } }

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