web自定义放大工具（与地图进行交互）_web自动化测试中怎么放大地图-优快云博客

本文链接：https://blog.youkuaiyun.com/fuao/article/details/2348394

本文介绍如何通过自定义Web工具实现地图的缩放功能。具体步骤包括：创建CustomizedWebTools类库，定义ZoomInTool类；在customizedCommands.cs文件中添加ZoomIn命令处理逻辑；在页面中注册并使用ZoomInTool。

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1 新建CustomizedWebTools.cs，添加
namespace CustomizedWebTools
{
    public class ZoomInTool : MapInfo.WebControls.WebTool
    {
        public ZoomInTool()
        {
            //Command = "";
            this.ClientInteraction = ClientInteractionEnum.ClickInteraction.ToString();
            Active = false;
            //CursorImageUrl = string.Format("{0}/MapInfoWeb{1}.cur", MapInfo.WebControls.Resources._resourceFolderMain, Command);
            CursorImageUrl = "";
        }
    }
}
2 在customizedCommands.cs文件中，添加ZoomIn方法类
[Serializable]
public class ZoomIn : MapBaseCommand {
  /// <summary>
  /// Constructor for the command.
  /// </summary>
  /// <remarks>Sets the name of the command.</remarks>
  public ZoomIn() {
   Name = "ZoomIn";
  }

  /// <summary>
  /// Gets the map object out of the Mapfactory with a given MapAlias, zooms using two screen points, and streams the image
  /// back to client.
  /// </summary>
  /// <remarks>None</remarks>
  public override void Process() {
   MapControlModel model = MapControlModel.GetModelFromSession();
   model.SetMapSize(MapAlias, MapWidth, MapHeight);
   System.Drawing.Point[]  points = ExtractPoints(DataString);
   model.Zoom(MapAlias, points[0], points[1],  true);
   MemoryStream ms = model.GetMap(MapAlias, MapWidth, MapHeight, ExportFormat);
   StreamImageToClient(ms);
  }
}

3 在设计中添加<cc2:ZoomInTool id="ZoomInTool1".............Command="ZoomIn" ClientInteraction="RectInteraction"></cc2:ZoomInTool>(省略号的内容设置图标等自己填)，在aspx表头添加
<%@ Register TagPrefix="cc2" Namespace="CustomizedWebTools" %>
4 在MapForm1.cs中的page_load中添加
controlModel.Commands.Add(new CustomWebTools.ZoomIn());