用.NET API实现亮显POLYLINE子段

CSharpBoy

下面C#代码提示用户选择多段线，然后输入要亮显的字段的编号，亮显一个子段。

1. [CommandMethod("HighlightPolySeg")]
   
2. public static void HighlightPolySeg()
   
3. {
   
4.     Document doc = Application.DocumentManager.MdiActiveDocument;
   
5.     Database db = doc.Database;
   
6.     Editor ed = doc.Editor;
   
7. 
   
8.     PromptEntityOptions peo = new PromptEntityOptions("\nSelect a polyline: ");
   
9.     peo.SetRejectMessage("\nMust be a polyline...");
   
10.     peo.AddAllowedClass(typeof(Polyline), true);
    
11. 
    
12.     PromptEntityResult per = ed.GetEntity(peo);
    
13. 
    
14.     if (per.Status != PromptStatus.OK) return;
    
15. 
    
16.     using (Transaction Tx = db.TransactionManager.StartTransaction())
    
17.     {
    
18.         Polyline polyline = Tx.GetObject(per.ObjectId, OpenMode.ForRead) as
    
19.             Polyline;
    
20. 
    
21.         int nbSegments = polyline.NumberOfVertices;
    
22. 
    
23.         if (!polyline.Closed) --nbSegments;
    
24. 
    
25.         PromptIntegerOptions pio = new PromptIntegerOptions("\nEnter segment id
    
26.             [1-" + nbSegments.ToString() + "] :");
    
27.         pio.LowerLimit = 1;
    
28.         pio.UpperLimit = nbSegments;
    
29. 
    
30.         PromptIntegerResult pir = ed.GetInteger(pio);
    
31. 
    
32.         if (pir.Status != PromptStatus.OK) return;
    
33. 
    
34.         FullSubentityPath path = new FullSubentityPath(new ObjectId[] {
    
35.             polyline.Id }, new SubentityId(SubentityType.Edge, pir.Value));
    
36.         polyline.Highlight(path, true);
    
37.     }
    
38. }

[CommandMethod("HighlightPolySeg")]<br /> public static void HighlightPolySeg()<br /> {<br />     Document doc = Application.DocumentManager.MdiActiveDocument;<br />     Database db = doc.Database;<br />     Editor ed = doc.Editor;<br /> <br />     PromptEntityOptions peo = new PromptEntityOptions("\nSelect a polyline: ");<br />     peo.SetRejectMessage("\nMust be a polyline...");<br />     peo.AddAllowedClass(typeof(Polyline), true);<br /> <br />     PromptEntityResult per = ed.GetEntity(peo);<br /> <br />     if (per.Status != PromptStatus.OK) return;<br /> <br />     using (Transaction Tx = db.TransactionManager.StartTransaction())<br />     {<br />         Polyline polyline = Tx.GetObject(per.ObjectId, OpenMode.ForRead) as<br />             Polyline;<br /> <br />         int nbSegments = polyline.NumberOfVertices;<br /> <br />         if (!polyline.Closed) --nbSegments;<br /> <br />         PromptIntegerOptions pio = new PromptIntegerOptions("\nEnter segment id<br />             [1-" + nbSegments.ToString() + "] :");<br />         pio.LowerLimit = 1;<br />         pio.UpperLimit = nbSegments;<br /> <br />         PromptIntegerResult pir = ed.GetInteger(pio);<br /> <br />         if (pir.Status != PromptStatus.OK) return;<br /> <br />         FullSubentityPath path = new FullSubentityPath(new ObjectId[] {<br />             polyline.Id }, new SubentityId(SubentityType.Edge, pir.Value));<br />         polyline.Highlight(path, true);<br />     }<br /> }

[it618postdisplay>0]别只看，你有好东西也分享哦！[/it618postdisplay]

lhtfhc

学习学习，谢谢

lou1981

楼主有没有清理pl线重复点的办法？

qq509103902

啥也不说了，感谢楼主分享哇！

qq509103902

学习学习。。。

pl4419433980

正需要，支持楼主大人了！

vosry

都是高科技，所以必须要回复

qq509103902

啥也不说了，感谢楼主分享哇！

zjy2999

学习！！！！！！！！！！！！！！

徐亚龙

学习学习！

ppstudy369

高亮显示，要是能显示夹点就更好了

lennie

xx看看学习学习

Lizzhao

学习一下

iambingo

感谢楼主分享！

yjch

感谢分享！好好学习天天向上