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如何在 ArcObjects 中创建 IDynamicDisplay 对象？

发布于 2024-09-16 07:05:34 字数 85 浏览 6 评论 0原文

我试图在地图上绘制一个文本字形，所有教程都说我需要一个 IDynamicDisplay，但我不知道如何获得它。提前致谢。 ; ）编辑：C# VS2010

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彻夜缠绵 2024-09-23 07:05:34

首先，您需要将 Map 对象的 IDynamicMap::DynamicMapEnabled 属性设置为 true。

IDynamicMap pDynamicMap = pMap as IDynamicMap;
pDynamicMap.DynamicMapEnabled = true

那么，有两种方法可以获取DynamicDisplay对象。一种是通过实现 IDynamicLayer 接口创建自定义层。第二个是挂钩 IDynamicMapEvents::BeforeDynamicDraw 事件或 IDynamicMapEvents::AfterDynamicDraw 事件。我希望这个最佳实践对您有所帮助。

使用动态显示的最佳实践

First you need to set IDynamicMap::DynamicMapEnabled property from Map object to true.

IDynamicMap pDynamicMap = pMap as IDynamicMap;
pDynamicMap.DynamicMapEnabled = true

Then, there are two ways to get DynamicDisplay object. One is creating custom Layer with implement IDynamicLayer interface. Second one is hooking IDynamicMapEvents::BeforeDynamicDraw event or IDynamicMapEvents::AfterDynamicDraw event. I hope this best practice help you.

Best practices for using dynamic display

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已下线请稍等 2024-09-23 07:05:34

您必须连接一个事件处理程序

ESRI.ArcGIS.Carto.IDynamicMapEvents_Event dynamicMapEvents = dynamicMap as ESRI.ArcGIS.Carto.IDynamicMapEvents_Event;
ESRI.ArcGIS.Carto.IActiveViewEvents_Event avEvents = activeView as ESRI.ArcGIS.Carto.IActiveViewEvents_Event;
avEvents.AfterDraw += new ESRI.ArcGIS.Carto.IActiveViewEvents_AfterDrawEventHandler(avEvents_AfterDraw);
dynamicMapEvents.AfterDynamicDraw += new IDynamicMapEvents_AfterDynamicDrawEventHandler(dynamicMapEvents_AfterDynamicDraw);

You have to wire up an event handler

ESRI.ArcGIS.Carto.IDynamicMapEvents_Event dynamicMapEvents = dynamicMap as ESRI.ArcGIS.Carto.IDynamicMapEvents_Event;
ESRI.ArcGIS.Carto.IActiveViewEvents_Event avEvents = activeView as ESRI.ArcGIS.Carto.IActiveViewEvents_Event;
avEvents.AfterDraw += new ESRI.ArcGIS.Carto.IActiveViewEvents_AfterDrawEventHandler(avEvents_AfterDraw);
dynamicMapEvents.AfterDynamicDraw += new IDynamicMapEvents_AfterDynamicDrawEventHandler(dynamicMapEvents_AfterDynamicDraw);

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