public Dictionary <long, HashSet <long> > BuildGraph(SpeedRoadSectionMgr secmgr)
{
Dictionary <long, HashSet <long> > graph = new Dictionary <long, HashSet <long> >();
foreach (var item in map)
{
graph[item.Key] = item.Value.GetNeighbors(secmgr);
}
return(graph);
}
List <Vector3> ObtainRingPoints(string secs, SpeedRoadSectionMgr secmgr)
{
var arr = secs.Split(',');
foreach (var item in arr)
{
lstSections.Add(secmgr.GetSection(int.Parse(item)));
}
return(SortSections(lstSections));
}
public HashSet <long> GetNeighbors(SpeedRoadSectionMgr secmgr)
{
HashSet <long> result = new HashSet <long>();
foreach (var item in lstSections)
{
HashSet <long> r = item.GetCrossings();
result.UnionWith(r);
}
result.Remove(Fid);
return(result);
}
void Init(ref GameObject obj, Feature fea, SpeedRoadSectionMgr secmgr)
{
fid = fea.GetFID();
// 构建顶点数组
var lstpts = ObtainRingPoints(fea.GetFieldAsString("sections"), secmgr);
Geometry geo = fea.GetGeometryRef();
Vector3 pt = new Vector3((float)geo.GetX(0), 0, (float)geo.GetY(0));
lstpts.Add(pt);
// 构建索引数组
// 3 * (lstpts.Count);
List <int> idx = new List <int>();
for (int i = 0; i < lstpts.Count - 2; i++)
{
idx.Add(lstpts.Count - 1);
idx.Add(i);
idx.Add(i + 1);
}
idx.Add(lstpts.Count - 1);
idx.Add(lstpts.Count - 2);
idx.Add(0);
Mesh msh = new Mesh();
msh.vertices = lstpts.ToArray();
msh.triangles = idx.ToArray();
msh.RecalculateNormals();
msh.RecalculateBounds();
obj.AddComponent(typeof(MeshRenderer));
MeshFilter filter = obj.AddComponent(typeof(MeshFilter)) as MeshFilter;
filter.mesh = msh;
obj.GetComponent <MeshRenderer>().material.color = new Color(0, 1, 0, 0.5f);
obj.name = fid.ToString();
GameObject fidmesh = GameObject.Instantiate(SpeedRoad.prefab);
fidmesh.transform.parent = obj.transform;
fidmesh.transform.localPosition = pt + Vector3.up * 2;
fidmesh.name = "fid";
m_textMeshPro = fidmesh.AddComponent <TextMeshPro>();
m_textMeshPro.fontSize = 48;
m_textMeshPro.color = Color.black;
m_textMeshPro.alignment = TextAlignmentOptions.Center;
m_textMeshPro.enableWordWrapping = false;
m_textMeshPro.SetText(obj.name);
}
public void LoadFile(string fname, Transform par, SpeedRoadSectionMgr secmgr)
{
parent = par;
DataSource ds = Ogr.Open(fname, 0);
Assert.IsNotNull(ds);
Assert.IsTrue(ds.GetLayerCount() > 0);
Layer layer = ds.GetLayerByIndex(0);
layer.ResetReading();
Feature feat;
while ((feat = layer.GetNextFeature()) != null)
{
GameObject obj = Instantiate(SpeedRoad.prefab);
obj.transform.parent = parent;
SpeedRoadCrossing crossing = new SpeedRoadCrossing(ref obj, feat, secmgr);
map[crossing.Fid] = crossing;
}
}
public SpeedRoadCrossing(ref GameObject obj, Feature fea, SpeedRoadSectionMgr secmgr)
{
Assert.IsTrue(fea.GetGeometryRef().GetGeometryType() == wkbGeometryType.wkbPoint);
Init(ref obj, fea, secmgr);
}
