private void button1_Click(object sender, EventArgs e)
{
if (mLayerCombox.Text == "" || mFeildCombox.Text == "")//判断输入合法性
{
MessageBox.Show("没有相应的图层");
return;
}
ITinEdit pTin = new TinClass();
//寻找Featurelayer
IFeatureLayer pFeatureLayer =
mSceneControl.Scene.get_Layer(mLayerCombox.SelectedIndex) as IFeatureLayer;
if (pFeatureLayer != null)
{
IEnvelope pEnvelope = new EnvelopeClass();
IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass;
IQueryFilter pQueryFilter = new QueryFilterClass();
IField pField = null;
//找字段
pField = pFeatureClass.Fields.get_Field(pFeatureClass.Fields.FindField(mFeildCombox.Text));
if (pField.Type == esriFieldType.esriFieldTypeInteger ||
pField.Type == esriFieldType.esriFieldTypeDouble ||
pField.Type == esriFieldType.esriFieldTypeSingle) //判断类型
{
IGeoDataset pGeoDataset = pFeatureLayer as IGeoDataset;
pEnvelope = pGeoDataset.Extent;
//设置空间参考系
ISpatialReference pSpatialReference;
pSpatialReference = pGeoDataset.SpatialReference;
//选择生成TIN的输入类型
esriTinSurfaceType pSurfaceTypeCount = esriTinSurfaceType.esriTinMassPoint;
switch (mTINType.Text)
{
case "点":
pSurfaceTypeCount = esriTinSurfaceType.esriTinMassPoint;
break;
case "直线":
pSurfaceTypeCount = esriTinSurfaceType.esriTinSoftLine;
break;
case "光滑线":
pSurfaceTypeCount = esriTinSurfaceType.esriTinHardLine;
break;
}
//创建TIN
pTin.InitNew(pEnvelope);
object missing = Type.Missing;
//生成TIN
pTin.AddFromFeatureClass(pFeatureClass, pQueryFilter, pField, pField, pSurfaceTypeCount, ref missing);
pTin.SetSpatialReference(pGeoDataset.SpatialReference);
//创建Tin图层并将Tin图层加入到场景中去
ITinLayer pTinLayer = new TinLayerClass();
pTinLayer.Dataset = pTin as ITin;
mSceneControl.Scene.AddLayer(pTinLayer, true);
}
else
{
MessageBox.Show("该字段的类型不符合构建TIN的条件");
}
}
}
