你上一幅图让大家来讨论讨论吧!难的主要是扩展数据太多吧 我是CAD初学者,开发一个有关四至的CAD插件还是有一定困难,前些天我刚写了一个求四至的插件,用C#写的,操作的是SHP数据,我觉得很多数据都可以通过FME转过去处理,在GIS中处理四至非常方便。关键是求几何关系,其核心函数是:
/// <summary>
/// 检查几何关系
/// </summary>
/// <param name="pPolyline"></param>
/// <param name="pFeatureClass"></param>
/// <returns></returns>
private string CheckTouches(IPolyline pPolyline, IFeatureClass pFeatureClass)
{
string strFID = "";
ISpatialFilter pSpatialFilter = new SpatialFilterClass();
pSpatialFilter.Geometry = pPolyline;
pSpatialFilter.GeometryField = "shape";
pSpatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelTouches;
IFeatureCursor pFeatureCursor = pFeatureClass.Search(pSpatialFilter, false);
IFeature pFeature = pFeatureCursor.NextFeature();
while (pFeature != null)
{
strFID=pFeature.get_Value(0).ToString();
pFeature = pFeatureCursor.NextFeature();
Application.DoEvents();
}
return strFID;
} GIS不懂,太高深 完全没有看明白。。。。。。。
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