文章 "DoEasy 函数库中的图形（第九十三部分）：准备创建复合图形对象的功能"

MetaQuotes 2022.04.08 13:01

新文章 DoEasy 函数库中的图形（第九十三部分）：准备创建复合图形对象的功能已发布：

在本文中，我将着手开发用于创建复合图形对象的功能。该函数库将支持创建复合图形对象，允许这些对象含有任意层次的连接。我将为这些对象的后续实现准备所有必要的类。

编译 EA，在图表上启动它，然后单击图表右边缘之外的某个地方。

结果出现一条趋势线，沿其边缘有价格标签对象：

日志里显示趋势线的属性和趋势线轴点的数量，可用于计算两个价格标签的 X 和 Y 坐标。由于已为每个标签指定了一个轴点，因此该轴点将显示在日志中。

2022.01.20 16:37:29.340 ============= The beginning of the parameter list (Trend Line) =============
2022.01.20 16:37:29.340 Object ID: 1
2022.01.20 16:37:29.340 Base object ID: 0
2022.01.20 16:37:29.340 Object type: Trend Line
2022.01.20 16:37:29.340 Graphic element type: Extended standard graphic object
2022.01.20 16:37:29.340 Object belongs to: The graphic object belongs to the program
2022.01.20 16:37:29.340 Object chart ID: 131733844391938630
2022.01.20 16:37:29.340 Chart subwindow number: 0
2022.01.20 16:37:29.340 Object number in the list: The base object of the extended graphical object
2022.01.20 16:37:29.340 Change history: No
2022.01.20 16:37:29.340 Object group: Not set
2022.01.20 16:37:29.340 Time of creation: 2022.01.20 16:37:29
2022.01.20 16:37:29.340 Visibility of an object at timeframes: Drawn on all timeframes
2022.01.20 16:37:29.340 Object in the background: No
2022.01.20 16:37:29.340 Priority of a graphical object for receiving events of clicking on a chart: 0
2022.01.20 16:37:29.340 Prohibit showing of the name of a graphical object in the terminal objects list: Yes
2022.01.20 16:37:29.340 Object is selected: Yes
2022.01.20 16:37:29.340 Object availability: Yes
2022.01.20 16:37:29.340 Time coordinate: 
2022.01.20 16:37:29.340  - Pivot point 0: 2022.01.13 09:00
2022.01.20 16:37:29.340  - Pivot point 1: 2022.01.20 10:00
2022.01.20 16:37:29.340 Color: clrRed
2022.01.20 16:37:29.340 Style: Solid line
2022.01.20 16:37:29.340 Line thickness: 1
2022.01.20 16:37:29.340 Ray goes to the left: No
2022.01.20 16:37:29.340 Ray goes to the right: No
2022.01.20 16:37:29.340 ------
2022.01.20 16:37:29.340 Price coordinate: 
2022.01.20 16:37:29.340  - Pivot point 0: 1.14728
2022.01.20 16:37:29.340  - Pivot point 1: 1.13598
2022.01.20 16:37:29.340 ------
2022.01.20 16:37:29.340 Name: "TestDoEasyPart93_TrendLineExt"
2022.01.20 16:37:29.340 Base object name: "TestDoEasyPart93_TrendLineExt"
2022.01.20 16:37:29.340 Description: Not set
2022.01.20 16:37:29.340 The text of a tooltip: Formed by the terminal
2022.01.20 16:37:29.340 ============= End of the parameter list (Trend Line) =============
2022.01.20 16:37:29.340 
2022.01.20 16:37:29.352 OnChartEvent: PriceLeft: Num linked coord X: 1, Num linked coord Y: 1
2022.01.20 16:37:29.364 OnChartEvent: PriceRight: Num linked coord X: 1, Num linked coord Y: 1

目前，我们只是简单地构造单独的图形对象，并设置属性，指示这些对象属于同一扩展标准图形对象。如果我们移动趋势线，价格标签还不能自动跟随它。然而，这并不是我当前的主题。我的目标是为创建完整的扩展图形对象准备必要的功能。

作者：Artyom Trishkin

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