void axRenderControl1_RcMouseClickSelect(IPickResult PickResult, IPoint IntersectPoint, gviModKeyMask Mask, gviMouseSelectMode EventSender)
{
try
{
this.axRenderControl1.FeatureManager.UnhighlightAll();
if (PickResult != null)
{
if (PickResult.Type == gviObjectType.gviObjectFeatureLayer)
{
IFeatureLayerPickResult flpr = PickResult as IFeatureLayerPickResult;
int fid = flpr.FeatureId;
this.axRenderControl1.FeatureManager.HighlightFeature(_featureClass, fid, System.Drawing.Color.Yellow);
//////////////////////////////////////////////////////////////////////////
//
// GeometryConvert的代码添加在这里
//
//////////////////////////////////////////////////////////////////////////
fidList.Clear();
fidList.Add(fid);
IRowBuffer rowGC = _featureClass.GetRow(fidList[0]);
int nPose = rowGC.FieldIndex("Geometry");
if (nPose == -1)
{
MessageBox.Show("不存在Geometry列");
return;
}
// 获取ModelPoint
IModelPoint modelPointGC = null;
if (rowGC != null)
{
nPose = rowGC.FieldIndex("Geometry");
IGeometry geo = rowGC.GetValue(nPose) as IGeometry;
if (geo.GeometryType == gviGeometryType.gviGeometryModelPoint)
{
modelPointGC = geo as IModelPoint;
}
}
this.Text = "拾取成功";
// 获取Model
string modelName = modelPointGC.ModelName;
IModel modelGC = (_featureClass.FeatureDataSet as IResourceManager).GetModel(modelName);
// 1、获取MultiTriMesh
IGeometryConvertor gc = new GeometryConvertor();
IMultiTriMesh multiTM = gc.ModelPointToTriMesh(modelGC, modelPointGC, false);
this.Text = "ModelToTriMesh完成";
if (this.cbCreateRenderTriMesh.Checked)
{
// 创建RenderTriMesh在三维上显示
for (int i = 0; i < multiTM.GeometryCount; i++)
{
ITriMesh tm = multiTM.GetGeometry(i) as ITriMesh;
IRenderTriMesh rtm = this.axRenderControl1.ObjectManager.CreateRenderTriMesh(tm, null, rootId);
//随机颜色填充TriMesh
Random randObj = new Random(i);
int aColor = randObj.Next(0, 255);
int gColor = randObj.Next(0, 255);
int rColor = randObj.Next(0, 255);
ISurfaceSymbol ss = new SurfaceSymbol();
ss.Color = System.Drawing.Color.FromArgb(rColor, gColor, aColor);
rtm.Symbol = ss;
rTMeshList.Add(rtm);
}
}
if (this.cbCreateRenderPolygon.Checked)
{
// 2、获取投影MultiPolygon
IMultiPolygon multiPolygon = gc.ProjectTriMeshToPolygon(multiTM, 1.0);
this.Text = "MultiTriMeshToFootprint完成。面积:" + multiPolygon.GetArea();
// 创建RenderPolygon在三维上显示
for (int i = 0; i < multiPolygon.GeometryCount; i++)
{
IPolygon polygon = multiPolygon.GetGeometry(i) as IPolygon;
IRenderPolygon rpolygon = this.axRenderControl1.ObjectManager.CreateRenderPolygon(polygon, null, rootId);
rPolygonList.Add(rpolygon);
}
}
if (this.cbCreateRenderPolygon2.Checked)
{
// 3、获取切割MultiPolygon
double heightSpec = 0.0, heightIntersect = 0.0;
Double.TryParse(IntersectPoint.Z.ToString(), out heightIntersect);
fidList.Clear();
fidList.Add(fid);
IEnvelope box = _featureClass.GetFeaturesEnvelope(fidList.ToArray(), "Geometry");
heightSpec = System.Math.Abs(heightIntersect - box.MinZ);
// 注意：CutTriMeshToPolygon方法的第三个参数为空间分辨率，应该选择合适值。
// 值过大会导致结果不精确，值过小会导致转换时间过长。使用时应设置大小合适的值来平衡精度和效率问题。
IMultiPolygon multiPolygon2 = gc.CutTriMeshToPolygon(multiTM, heightSpec, 0.5);
this.Text = "MultiTriMeshToFootprint2完成。面积:" + multiPolygon2.GetArea();
// 创建RenderPolygon在三维上显示
for (int i = 0; i < multiPolygon2.GeometryCount; i++)
{
IPolygon polygon2 = multiPolygon2.GetGeometry(i) as IPolygon;
IRenderPolygon rpolygon2 = this.axRenderControl1.ObjectManager.CreateRenderPolygon(polygon2, null, rootId);
rPolygonList2.Add(rpolygon2);
}
}
if (this.cbCreateRenderMulPoint.Checked)
{
// 4、获取MultiPoint
IMultiPoint multiPoint = gc.MultiTriMeshToMultiPoint(multiTM, 3.0);
this.Text = "MultiTriMeshToMultiPoint完成。MultiPoint个数为：" + multiPoint.GeometryCount;
//创建RenderPoint在三维上显示
IRenderMultiPoint rpoint = this.axRenderControl1.ObjectManager.CreateRenderMultiPoint(multiPoint, null, rootId);
rPointList.Add(rpoint);
}
}
}
}
catch (System.Exception ex)
{
if (ex.GetType().Name.Equals("UnauthorizedAccessException"))
{
MessageBox.Show("需要标准runtime授权");
}
else
{
MessageBox.Show(ex.Message);
}
}
}
