private void 打开TinToolStripMenuItem_Click(object sender, EventArgs e)
{
// ITinLayer pTinLayer = GetTINLayer(@".\data\IDW数据\dvtin");
ITinAdvanced2 pTin = new TinClass();
pTin.Init(@".\data\IDW数据\dvtin");
ITinLayer pTinLayer = new TinLayerClass();
pTinLayer.Dataset = pTin;
axMapControl1.Map.AddLayer(pTinLayer as ILayer);
}