private static void _标准差(string dzx, out double aue, out double bzc)
{
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
OSGeo.OGR.DataSource dzxDS = dr.Open(dzx, 0);
OSGeo.OGR.Layer dzxLayer = dzxDS.GetLayerByIndex(0);
//获取Featuer数
int featCount = dzxLayer.GetFeatureCount(0);
// 1 拿到每个Featuer的Value
double[] values = new double[featCount];
for (int i = 0; i < featCount; i++)
{
OSGeo.OGR.Feature fileFeat = dzxLayer.GetFeature(i);
OSGeo.OGR.Geometry fileGeom = fileFeat.GetGeometryRef();
values[i] = fileFeat.GetFieldAsDouble("EVE");
fileGeom.Dispose();
fileFeat.Dispose();
}
dzxDS.Dispose();
// 2 求Values的平均值
aue = values.Average();
// 3 求values与平均值差的平方和
double pingFangHe = 0;
for (int i = 0; i < featCount; i++)
{
pingFangHe += (values[i] - aue) * (values[i] - aue);
}
// 4 每个值与平均值的差相加,除Featuer数.再开方,得到标准差
bzc = Math.Sqrt(pingFangHe / featCount);
}
/*************************************************************************************************/
/***************************读入SHP文件***************************/
/// <summary>
/// shpPolygon To List<Point[]>
/// </summary>
/// <param name="filePath"></param>
/// <returns></returns>
public static List <Point[]> shpPolygonToPointGL(string filePath)
{
List <Point[]> allFeature = new List <Point[]>();
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
OSGeo.OGR.DataSource ds = dr.Open(filePath, 0);
OSGeo.OGR.Layer fileLayer = ds.GetLayerByIndex(0);
int FeatCount = fileLayer.GetFeatureCount(0);
for (int u = 0; u < FeatCount; u++)
{
OSGeo.OGR.Feature fileFeature = fileLayer.GetFeature(u);
OSGeo.OGR.Geometry fileGeom = fileFeature.GetGeometryRef();
OSGeo.OGR.Geometry subGeom = fileGeom.GetGeometryRef(0);
int k = subGeom.GetPointCount();
Point[] aFeat = new Point[k];
for (int i = 0; i < k; i++)
{
aFeat[i].X = subGeom.GetX(i);
aFeat[i].Y = subGeom.GetY(i);
aFeat[i].Z = subGeom.GetZ(i);
}
allFeature.Add(aFeat);
}
return(allFeature);
}
/// <summary>
/// 删除Featuer后更新Layer,Layer会被释放
/// </summary>
/// <param name="myDS"></param>
public static void deleteFeatUpdate(this OSGeo.OGR.DataSource myDS)
{
string a = "REPACK " + myDS.GetLayerByIndex(0).GetName();
myDS.ExecuteSQL(a, null, "");
myDS.Dispose();
}
/// <summary>
/// 通过ID数组提取出所有要素
/// </summary>
/// <param name="dzLine"></param>
/// <param name="pdLing"></param>
/// <param name="savePath"></param>
public static void selectFeat(string dzLine, string pdLing, string savePath)
{
//获得数组
int[] a = getMinIdGroup(dzLine, pdLing);
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
//读取原Layer
OSGeo.OGR.DataSource dzDS = dr.Open(dzLine, 0);
OSGeo.OGR.Layer dzLayer = dzDS.GetLayerByIndex(0);
//新建Layer
if (System.IO.File.Exists(savePath))
{
System.IO.File.Delete(savePath);
}
OSGeo.OGR.DataSource ds = dr.CreateDataSource(savePath, null);
OSGeo.OGR.Layer fileLayer = ds.CreateLayer("", null, OSGeo.OGR.wkbGeometryType.wkbPolygon, null);
//get featuer by ID
for (int i = 0; i < a.Length; i++)
{
OSGeo.OGR.Feature dzFeat = dzLayer.GetFeature(a[i]);
OSGeo.OGR.Geometry dzGeom = dzFeat.GetGeometryRef();
OSGeo.OGR.Geometry fileGeom = dzGeom;
OSGeo.OGR.Feature fileFeat = new OSGeo.OGR.Feature(dzFeat.GetDefnRef());
fileFeat.SetGeometry(fileGeom);
fileLayer.CreateFeature(dzFeat);
}
fileLayer.Dispose();
ds.Dispose();
dzDS.Dispose();
}
/************************************ 生成等值线 **********************************************/
public static string dzx(string filePath)
{
Console.WriteLine("开始创建等值线！");
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.GDAL.Gdal.AllRegister();
//无效值
double noDataValue;
//0不使用无效值,1使用无效值
int hasDataValue;
//读入数据源
OSGeo.GDAL.Dataset inData = OSGeo.GDAL.Gdal.Open(filePath, OSGeo.GDAL.Access.GA_ReadOnly);
//分析数据源
inData.GetRasterBand(1).GetNoDataValue(out noDataValue, out hasDataValue);
double min, max, mean, std;
inData.GetRasterBand(1).GetStatistics(0, 1, out min, out max, out mean, out std);
int jianG = 2;
int count = Convert.ToInt32((max - min) / jianG + 0.5);
double[] shu = new double[count];
for (int i = 0; i < count; i++)
{
shu[i] = min + jianG * i;
}
//创建空的SHP
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
string a = StaticTools.tempFilePath("shp", "原始等值线");
OSGeo.OGR.DataSource ds = dr.CreateDataSource(a, null);
OSGeo.OGR.Layer dzxLayer = ds.CreateLayer("", null, OSGeo.OGR.wkbGeometryType.wkbMultiLineString, null);
OSGeo.OGR.FieldDefn fieldDf0 = new OSGeo.OGR.FieldDefn("LID", OSGeo.OGR.FieldType.OFTInteger);
OSGeo.OGR.FieldDefn fieldDf1 = new OSGeo.OGR.FieldDefn("EVE", OSGeo.OGR.FieldType.OFTReal);
dzxLayer.CreateField(fieldDf0, 1); //ID
dzxLayer.CreateField(fieldDf1, 1); //Value
//Band(1), 间隔, 起始高度, 分段数量, 分段值数组, 是否有无效值, 无效值, 预置图层. ID字段, 高度值字段, null , null
OSGeo.GDAL.Gdal.ContourGenerate(inData.GetRasterBand(1), jianG, min, count, shu, hasDataValue, noDataValue, dzxLayer, 0, 1, null, null);
if (dzxLayer.GetFeatureCount(0) > 0)
{
Console.WriteLine("等值线创建完成！");
}
else
{
Console.WriteLine("等值线创建失败！");
}
ds.Dispose();
inData.Dispose();
return(a);
}
/// <summary>
/// Get Layer from Path
/// </summary>
/// <param name="path">Path of Layer</param>
/// <returns>Layer</returns>
public static OSGeo.OGR.Layer GetOgrLayer(string path)
{
OSGeo.OGR.Layer layer = null;
if (System.IO.File.Exists(path))
{
OSGeo.OGR.DataSource dsBaseLayer = OSGeo.OGR.Ogr.Open(path, 0);
layer = dsBaseLayer.GetLayerByIndex(0);
}
return(layer);
}
//返回值是函数的系数
//例如：y=a0+a1*x 返回值则为a0 a1
//例如：y=a0+a1*x+a2*x*x 返回值则为a0 a1 a2
#endregion
/*************************************************************************************************/
/************************************ 生成等值线 **********************************************/
public static string dzxPath(string filePath)
{
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.GDAL.Gdal.AllRegister();
//无效值
double noDataValue;
//0不使用无效值,1使用无效值
int hasDataValue;
//读入数据源
OSGeo.GDAL.Dataset inData = OSGeo.GDAL.Gdal.Open(filePath, OSGeo.GDAL.Access.GA_ReadOnly);
//分析数据源
inData.GetRasterBand(1).GetNoDataValue(out noDataValue, out hasDataValue);
double min, max, mean, std;
inData.GetRasterBand(1).GetStatistics(0, 1, out min, out max, out mean, out std);
int jianG = 2;
int count = Convert.ToInt32((max - min) / jianG + 0.5);
double[] shu = new double[count];
for (int i = 0; i < count; i++)
{
shu[i] = min + jianG * i;
}
//创建空的SHP
string dzSavePath = filePath.Substring(0, filePath.LastIndexOf(".")) + "_dzx.shp";
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
if (System.IO.File.Exists(dzSavePath))
{
System.IO.File.Delete(dzSavePath);
}
OSGeo.OGR.DataSource ds = dr.CreateDataSource(dzSavePath, null);
OSGeo.OGR.Layer dzxLayer = ds.CreateLayer("等值线", null, OSGeo.OGR.wkbGeometryType.wkbMultiLineString, null);
OSGeo.OGR.FieldDefn fieldDf0 = new OSGeo.OGR.FieldDefn("LID", OSGeo.OGR.FieldType.OFTInteger);
OSGeo.OGR.FieldDefn fieldDf1 = new OSGeo.OGR.FieldDefn("EVE", OSGeo.OGR.FieldType.OFTReal);
dzxLayer.CreateField(fieldDf0, 1); //ID
dzxLayer.CreateField(fieldDf1, 1); //Value
//Band(1), 间隔, 起始高度, 分段数量, 分段值数组, 是否有无效值, 无效值, 预置图层. ID字段, 高度值字段, null , null
OSGeo.GDAL.Gdal.ContourGenerate(inData.GetRasterBand(1), jianG, min, count, shu, hasDataValue, noDataValue, dzxLayer, 0, 1, null, null);
dzxLayer.Dispose();
ds.Dispose();
return(dzSavePath);
}
public Ogr(string filename, string layerName)
{
Filename = filename;
_ogrDataSource = OgrOgr.Open(filename, 1);
_ogrLayer = _ogrDataSource.GetLayerByName(layerName);
OsrSpatialReference spatialReference = _ogrLayer.GetSpatialRef();
if (spatialReference != null)
{
_srid = spatialReference.AutoIdentifyEPSG();
}
}
///// <summary>
///// Loads a Ogr datasource with the specified layer
///// </summary>
///// <param name="filename">datasource</param>
///// <param name="layerName">name of layer</param>
/////If you want this functionality use
/////<example>
/////SharpMap.Data.Providers.Ogr prov = new SharpMap.Data.Providers.Ogr(datasource);
/////prov.LayerName = layerName;
/////</example>
//[Obsolete("This constructor does not work well with VB.NET. Use LayerName property instead")]
//public Ogr(string filename, string layerName)
//{
// Filename = filename;
// _ogrDataSource = OgrOgr.Open(filename, 1);
// _ogrLayer = _ogrDataSource.GetLayerByName(layerName);
// OsrSpatialReference spatialReference = _ogrLayer.GetSpatialRef();
// if (spatialReference != null)
// SRID = spatialReference.AutoIdentifyEPSG();
//}
/// <summary>
/// Loads a Ogr datasource with the specified layer
/// </summary>
/// <param name="filename">datasource</param>
/// <param name="layerNum">number of layer</param>
public Ogr(string filename, int layerNum)
{
Filename = filename;
_ogrDataSource = OgrOgr.Open(filename, 0);
_ogrLayer = _ogrDataSource.GetLayerByIndex(layerNum);
OsrSpatialReference spatialReference = _ogrLayer.GetSpatialRef();
if (spatialReference != null)
{
SRID = spatialReference.AutoIdentifyEPSG();
}
}
/// <summary>
/// DotSpatial to Ogr at layer level
/// </summary>
/// <param name="featureSet">DotSpatial IFeatureSet</param>
/// <returns>Ogr Layer</returns>
public static OSGeo.OGR.Layer DS2OrgLayer(DotSpatial.Data.IFeatureSet featureSet)
{
using (OSGeo.OGR.Driver driver = OSGeo.OGR.Ogr.GetDriverByName("Memory"))
{
OSGeo.OGR.DataSource dataSource = driver.CreateDataSource(featureSet.Name, null);
OSGeo.OGR.Layer layer = dataSource.CreateLayer("Result", DS2OgrProjection(featureSet.Projection), DS2OgrGeometryType(featureSet.FeatureType), new string[] { });
OSGeo.OGR.FeatureDefn featureDefn = DS2OgrDataTable(featureSet.DataTable);
for (int k = 0; k < featureDefn.GetFieldCount(); k++)
{
layer.CreateField(featureDefn.GetFieldDefn(k), 0);
}
for (int i = 0; i < featureSet.NumRows(); i++)
{
DotSpatial.Data.IFeature feature = featureSet.GetFeature(i);
OSGeo.OGR.Feature ogrFeature = new OSGeo.OGR.Feature(featureDefn);
ogrFeature.SetGeometry(DS2OgrGeometry(feature.Geometry, featureSet));
for (int j = 0; j < feature.DataRow.ItemArray.Length; j++)
{
#region Set Value to Feature
object value = feature.DataRow.ItemArray.GetValue(j);
if (value is int)
{
ogrFeature.SetField(j, (int)value);
}
else if (value is double)
{
ogrFeature.SetField(j, (double)value);
}
else if (value is string)
{
ogrFeature.SetField(j, (string)value);
}
else if (value is DateTime)
{
DateTime dateTime = (DateTime)value;
ogrFeature.SetField(j, dateTime.Year, dateTime.Month, dateTime.Day, dateTime.Hour, dateTime.Minute, (float)dateTime.Second, 0);
}
#endregion
}
layer.CreateFeature(ogrFeature);
}
dataSource.FlushCache();
return(layer);
}
}
/******************************** 等值线转换为多边形 ***********************************************/
/// <summary>
/// 等值线转为POLYGON
/// </summary>
/// <param name="filePath"></param>
/// <returns></returns>
public static string dzPoly(string filePath)
{
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
string a = StaticTools.tempFilePath("shp", "等值线POLY");
OSGeo.OGR.DataSource newDS = dr.CreateDataSource(a, null);
OSGeo.OGR.Layer polyLayer = newDS.CreateLayer("", null, OSGeo.OGR.wkbGeometryType.wkbPolygon, null);
OSGeo.OGR.FieldDefn fieldDf0 = new OSGeo.OGR.FieldDefn("LID", OSGeo.OGR.FieldType.OFTInteger);
OSGeo.OGR.FieldDefn fieldDf1 = new OSGeo.OGR.FieldDefn("EVE", OSGeo.OGR.FieldType.OFTReal);
polyLayer.CreateField(fieldDf0, 1); //ID
polyLayer.CreateField(fieldDf1, 1); //Value
OSGeo.OGR.FeatureDefn featDF = new OSGeo.OGR.FeatureDefn("");
Console.WriteLine("开始等值线转POLY！");
OSGeo.OGR.DataSource cleanDS = dr.Open(filePath, 0);
OSGeo.OGR.Layer cleanLayer = cleanDS.GetLayerByIndex(0);
for (int i = 0; i < cleanLayer.GetFeatureCount(0); i++)
{
OSGeo.OGR.Feature lineFeat = cleanLayer.GetFeature(i);
OSGeo.OGR.Geometry lineGeom = lineFeat.GetGeometryRef();
OSGeo.OGR.Feature polyFeat = new OSGeo.OGR.Feature(featDF);
OSGeo.OGR.Geometry polyGeom = new OSGeo.OGR.Geometry(OSGeo.OGR.wkbGeometryType.wkbPolygon);
OSGeo.OGR.Geometry subGeom = new OSGeo.OGR.Geometry(OSGeo.OGR.wkbGeometryType.wkbLinearRing);
int u = lineGeom.GetPointCount();
for (int s = 0; s < u; s++)
{
double x = lineGeom.GetX(s);
double y = lineGeom.GetY(s);
double z = lineGeom.GetZ(s);
subGeom.AddPoint(x, y, z);
}
polyGeom.AddGeometry(subGeom);
polyFeat.SetGeometry(polyGeom);
polyLayer.CreateFeature(polyFeat);
lineGeom.Dispose();
polyGeom.Dispose();
subGeom.Dispose();
lineFeat.Dispose();
polyFeat.Dispose();
}
cleanLayer.Dispose();
polyLayer.Dispose();
cleanDS.Dispose();
newDS.Dispose();
Console.WriteLine("等值线转POLY完成！");
return(a);
}
///// <summary>
///// Loads a Ogr datasource with the specified layer
///// </summary>
///// <param name="filename">datasource</param>
///// <param name="layerName">name of layer</param>
/////If you want this functionality use
/////<example>
/////SharpMap.Data.Providers.Ogr prov = new SharpMap.Data.Providers.Ogr(datasource);
/////prov.LayerName = layerName;
/////</example>
//[Obsolete("This constructor does not work well with VB.NET. Use LayerName property instead")]
//public Ogr(string filename, string layerName)
//{
// Filename = filename;
// _ogrDataSource = OgrOgr.Open(filename, 1);
// _ogrLayer = _ogrDataSource.GetLayerByName(layerName);
// OsrSpatialReference spatialReference = _ogrLayer.GetSpatialRef();
// if (spatialReference != null)
// SRID = spatialReference.AutoIdentifyEPSG();
//}
/// <summary>
/// Loads a Ogr datasource with the specified layer
/// </summary>
/// <param name="filename">datasource</param>
/// <param name="layerNum">number of layer</param>
public Ogr(string filename, int layerNum)
{
Filename = filename;
ConnectionID = filename;
_ogrDataSource = OgrOgr.OpenShared(filename, 0);
using (var ogrLayer = GetLayer(layerNum))
{
OsrSpatialReference spatialReference = ogrLayer.GetSpatialRef();
if (spatialReference != null)
{
SRID = spatialReference.AutoIdentifyEPSG();
}
}
_layerIndex = layerNum;
}
/// <summary>
/// LineD to shpLine
/// </summary>
/// <param name="savePath"></param>
/// <param name="aLine"></param>
public static void LineDtoshpLine(string savePath, LineD aLine)
{
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
OSGeo.OGR.DataSource ds = dr.CreateDataSource(savePath, null);
OSGeo.OGR.Layer fileLayer = ds.CreateLayer("", null, OSGeo.OGR.wkbGeometryType.wkbLineString, null);
OSGeo.OGR.FeatureDefn FeatDf = new OSGeo.OGR.FeatureDefn("");
OSGeo.OGR.Feature fileFeat = new OSGeo.OGR.Feature(FeatDf);
OSGeo.OGR.Geometry fileGeom = new OSGeo.OGR.Geometry(OSGeo.OGR.wkbGeometryType.wkbLineString);
fileGeom.AddPoint(aLine.Start.X, aLine.Start.Y, aLine.Start.Z);
fileGeom.AddPoint(aLine.End.X, aLine.End.Y, aLine.End.Z);
fileFeat.SetGeometry(fileGeom);
fileLayer.CreateFeature(fileFeat);
fileLayer.Dispose();
ds.Dispose();
}
/// <summary>
/// 清理等值线上的点
/// </summary>
/// <param name="filePath"></param>
public static void claenPoint(string filePath)
{
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
//进来的Layer
OSGeo.OGR.DataSource oriDs = dr.Open(filePath, 0);
OSGeo.OGR.Layer oriLayer = oriDs.GetLayerByIndex(0);
//出去的Layer
if (System.IO.File.Exists(filePath.Substring(0, filePath.LastIndexOf(".")) + "_targ.shp"))
{
// UsefullTools.deleteFiles(filePath.Substring(0, filePath.LastIndexOf(".")) + "_targ.shp");
}
OSGeo.OGR.DataSource targDs = dr.CreateDataSource(filePath.Substring(0, filePath.LastIndexOf(".")) + "_targ.shp", null);
OSGeo.OGR.Layer targLayer = targDs.CreateLayer("targ", null, OSGeo.OGR.wkbGeometryType.wkbPolygon, null);
int featCount = oriLayer.GetFeatureCount(0);
for (int i = 0; i < featCount; i++)
{
///进来的Featuer
OSGeo.OGR.Feature oriFeat = oriLayer.GetFeature(i);
///把一个Featuer转为点数组
OSGeo.OGR.Geometry oriGeom = oriFeat.GetGeometryRef();
OSGeo.OGR.Geometry subGeom = oriGeom.GetGeometryRef(0);
int pointCount = subGeom.GetPointCount();
Point[] aFeat = new Point[pointCount];
for (int c = 0; c < pointCount; c++)
{
aFeat[c].X = subGeom.GetX(c);
aFeat[c].Y = subGeom.GetY(c);
aFeat[c].Z = subGeom.GetZ(c);
}
///调选点方法,得到一个新的Featuer
OSGeo.OGR.Feature newFeat = JID(aFeat);
if (newFeat != null)
{
targLayer.CreateFeature(newFeat);
}
}
oriDs.Dispose();
targDs.Dispose();
}
/// <summary>
/// Point[] to shpPoint
/// </summary>
/// <param name="savePath"></param>
/// <param name="allFeat"></param>
public static void pointGToShpPoint(string savePath, Point[] allFeat)
{
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
OSGeo.OGR.DataSource ds = dr.CreateDataSource(savePath, null);
OSGeo.OGR.Layer fileLayer = ds.CreateLayer("", null, OSGeo.OGR.wkbGeometryType.wkbPoint, null);
for (int i = 0; i < allFeat.Length; i++)
{
OSGeo.OGR.FeatureDefn FeatDf = new OSGeo.OGR.FeatureDefn("");
OSGeo.OGR.Feature fileFeat = new OSGeo.OGR.Feature(FeatDf);
OSGeo.OGR.Geometry fileGeom = new OSGeo.OGR.Geometry(OSGeo.OGR.wkbGeometryType.wkbPoint);
fileGeom.AddPoint(allFeat[i].X, allFeat[i].Y, allFeat[i].Z);
fileFeat.SetGeometry(fileGeom);
fileLayer.CreateFeature(fileFeat);
}
fileLayer.Dispose();
ds.Dispose();
}
/************************************** 清理等值线 *****************************************/
/// <summary>
/// 通过线长,值 清理等值线
/// </summary>
/// <param name="filePath"></param>
public static string cleanDS(string dzx)
{
Console.WriteLine("开始清理等值线！");
double aue, bzc; _标准差(dzx, out aue, out bzc);
double minLength = 50;
double maxLength = 2600;
double minValue = aue - bzc * 2;
double maxValue = aue + bzc * 2;
//open dzx
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
OSGeo.OGR.DataSource dzxDS = dr.Open(dzx, 0);
OSGeo.OGR.Layer dzxLayer = dzxDS.GetLayerByIndex(0);
//new a shp
string cleanline = StaticTools.tempFilePath("shp", "清理后的等值线");
OSGeo.OGR.DataSource newdzxDS = dr.CreateDataSource(cleanline, null);
OSGeo.OGR.Layer newdzxLayer = newdzxDS.CreateLayer(dzxLayer.GetName(), dzxLayer.GetSpatialRef(), dzxLayer.GetGeomType(), null);
for (int i = 0; i < dzxLayer.GetFeatureCount(0); i++)
{
OSGeo.OGR.Feature fileFeat = dzxLayer.GetFeature(i);
OSGeo.OGR.Geometry fileGeom = fileFeat.GetGeometryRef();
double FeatLength = fileGeom.Length();
bool s1 = FeatLength > minLength && FeatLength < maxLength;
double featValue = fileFeat.GetFieldAsDouble("EVE");
bool s2 = featValue > minValue && featValue < maxValue;
bool isR = fileGeom.IsRing();
if (s1 && s2 && isR)
{
newdzxLayer.CreateFeature(fileFeat);
}
fileFeat.Dispose();
}
newdzxDS.Dispose();
dzxDS.Dispose();
Console.WriteLine("清理等值线完成！");
return(cleanline);
}
public bool Open()
{
try
{
OSGeo.OGR.Ogr.RegisterAll();
_dataSource = OSGeo.OGR.Ogr.Open(_connectionString, 0);
if (_dataSource != null)
{
_state = DatasetState.opened;
return(true);
}
return(false);
}
catch (Exception ex)
{
_lastErrMsg = ex.Message;
return(false);
}
}
/// <summary>
/// shpPoint To Point[]
/// </summary>
/// <param name="filePath"></param>
/// <returns></returns>
public static Point[] shpPointtoPointG(string filePath)
{
var temp = new List <Point>();
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
OSGeo.OGR.DataSource ds = dr.Open(filePath, 0);
OSGeo.OGR.Layer fileLayer = ds.GetLayerByIndex(0);
int FeatCount = fileLayer.GetFeatureCount(0);
for (int i = 0; i < FeatCount; i++)
{
OSGeo.OGR.Feature fileFeature = fileLayer.GetFeature(i);
OSGeo.OGR.Geometry fileGeom = fileFeature.GetGeometryRef();
var newPoint = new Point();
newPoint.X = fileGeom.GetX(0);
newPoint.Y = fileGeom.GetY(0);
newPoint.Z = fileGeom.GetZ(0);
temp.Add(newPoint);
}
return(temp.ToArray());
}
/// <summary>
/// List<Point[]> To shpLine
/// </summary>
/// <param name="savePath"></param>
/// <param name="allFeat"></param>
public static void pointGtoshpLine(string savePath, List <Point[]> allFeat)
{
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
OSGeo.OGR.DataSource ds = dr.CreateDataSource(savePath, null);
OSGeo.OGR.Layer fileLayer = ds.CreateLayer("", null, OSGeo.OGR.wkbGeometryType.wkbLineString, null);
for (int u = 0; u < allFeat.Count; u++)
{
Point[] a = allFeat[u];
OSGeo.OGR.FeatureDefn FeatDf = new OSGeo.OGR.FeatureDefn("");
OSGeo.OGR.Feature fileFeat = new OSGeo.OGR.Feature(FeatDf);
OSGeo.OGR.Geometry fileGeom = new OSGeo.OGR.Geometry(OSGeo.OGR.wkbGeometryType.wkbLineString);
for (int i = 0; i < a.Length; i++)
{
fileGeom.AddPoint(a[i].X, a[i].Y, a[i].Z);
}
fileFeat.SetGeometry(fileGeom);
fileLayer.CreateFeature(fileFeat);
}
fileLayer.Dispose();
ds.Dispose();
}
/// <summary>
/// 通过Layer名删除Layer
/// </summary>
/// <param name="myDS"></param>
/// <param name="layerName"></param>
/// <returns></returns>
public static bool deleteLayerByName(this OSGeo.OGR.DataSource myDS, string layerName)
{
bool isDelete = false;
int layerCount = myDS.GetLayerCount();
for (int i = 0; i < layerCount; i++)
{
OSGeo.OGR.Layer itm = myDS.GetLayerByIndex(i);
if (itm.GetName() == layerName)
{
itm.Dispose();
myDS.DeleteLayer(i);
isDelete = true;
break;
}
else
{
itm.Dispose();
}
}
return(isDelete);
}
private void btnTestConnecton_Click(object sender, EventArgs e)
{
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.DataSource dataSource = OSGeo.OGR.Ogr.Open(this.ConnectionString, 0);
if (dataSource != null)
{
StringBuilder sb = new StringBuilder();
for (int i = 0; i < Math.Min(dataSource.GetLayerCount(), 20); i++)
{
OSGeo.OGR.Layer ogrLayer = dataSource.GetLayerByIndex(i);
if (ogrLayer == null)
{
continue;
}
sb.Append("\n" + ogrLayer.GetName());
}
MessageBox.Show("Connection succeeded...\n" + sb.ToString(), "Test Connection", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("Connection failed...", "Test Connection", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
static void Main(string[] args)
{
OSGeo.GDAL.Gdal.AllRegister();
OSGeo.OGR.Ogr.RegisterAll();
//shp驱动
OSGeo.OGR.Driver shpDataDriver = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
//shp数据源
shpDataSet = shpDataDriver.CreateDataSource(shpSavePath, null);
//img驱动
gdalDriver = OSGeo.GDAL.Gdal.GetDriverByName("HFA");
//dsm数据源
dsmDataset = OSGeo.GDAL.Gdal.Open(dsmPath, OSGeo.GDAL.Access.GA_Update);
//dsm数据信息
dsmDataset.GetGeoTransform(dsm_Transform);
dsm_Xsize = dsmDataset.RasterXSize;
dsm_Ysize = dsmDataset.RasterYSize;
//投影信息
srs = dsmDataset.GetProjectionRef() == "" ? null : new OSGeo.OSR.SpatialReference(dsmDataset.GetProjectionRef());
Stopwatch aTime = new Stopwatch(); aTime.Start();
//1 坡度图
buildSlope();
StaticTools.msgLine($"完成！用时：{aTime.Elapsed.ToString()}\n"); aTime.Restart();
//2 坡度线
OSGeo.OGR.Layer pdx = getPDX(1);
StaticTools.msgLine($"完成！用时：{aTime.Elapsed.ToString()}\n"); aTime.Restart();
OSGeo.OGR.Layer slopeCleanLayer = cleanLayer(pdx, 200, 5000);
StaticTools.msgLine($"完成！用时：{aTime.Elapsed.ToString()}\n"); aTime.Restart();
//3 等高线
OSGeo.OGR.Layer dzx = getDZX_();
StaticTools.msgLine($"完成！用时：{aTime.Elapsed.ToString()}\n"); aTime.Restart();
OSGeo.OGR.Layer dzxPolyLayer = cleanDZX(dzx);
StaticTools.msgLine($"完成！用时：{aTime.Elapsed.ToString()}\n"); aTime.Restart();
//4 筛选
OSGeo.OGR.Layer selectLayer = selectionFeatuers(slopeCleanLayer, dzxPolyLayer);
StaticTools.msgLine($"完成！用时：{aTime.Elapsed.ToString()}\n"); aTime.Restart();
OSGeo.OGR.Layer resLayer = cleanLayer_FF(selectLayer);
StaticTools.msgLine($"完成！用时：{aTime.Elapsed.ToString()}\n"); aTime.Restart();
// 最小外接矩形
getMinOutLineFromLayerToLayer(resLayer);
StaticTools.msgLine($"完成！用时：{aTime.Elapsed.ToString()}\n"); aTime.Restart();
//5 简化
jianhua(resLayer, 175, 5);
StaticTools.msgLine($"完成！用时：{aTime.Elapsed.ToString()}\n"); aTime.Restart();
//6 高度值 未完成
//getH(resLayer);
//StaticTools.msgLine($"完成！用时：{aTime.Elapsed.ToString()}\n"); aTime.Restart();
shpDataSet.Dispose();
shpDataDriver.Dispose();
dsmDataset.Dispose();
gdalDriver.Dispose();
// aTime.Stop();
Console.Write("Press any key to continue . . . ");
Console.ReadKey(true);
}
protected override void SolveInstance(IGH_DataAccess DA)
{
///Gather GHA inputs
List <Curve> boundary = new List <Curve>();
DA.GetDataList <Curve>("Boundary", boundary);
string shpFileLoc = "";
DA.GetData <string>("Vector Data Location", ref shpFileLoc);
bool cropIt = true;
DA.GetData <Boolean>("Crop file", ref cropIt);
string userSRStext = "WGS84";
DA.GetData <string>(2, ref userSRStext);
///GDAL setup
///Some preliminary testing has been done to read SHP, GeoJSON, OSM, KML, MVT, GML and GDB
///It can be spotty with KML, MVT and GML and doesn't throw informative errors. Likely has to do with getting a valid CRS and
///TODO: resolve errors with reading KML, MVT, GML.
RESTful.GdalConfiguration.ConfigureOgr();
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver drv = OSGeo.OGR.Ogr.GetDriverByName("ESRI Shapefile");
OSGeo.OGR.DataSource ds = OSGeo.OGR.Ogr.Open(shpFileLoc, 0);
if (ds == null)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Error, "The vector datasource was unreadable by this component. It may not a valid file type for this component or otherwise null/empty.");
return;
}
List <OSGeo.OGR.Layer> layerset = new List <OSGeo.OGR.Layer>();
List <int> fc = new List <int>();
for (int iLayer = 0; iLayer < ds.GetLayerCount(); iLayer++)
{
OSGeo.OGR.Layer layer = ds.GetLayerByIndex(iLayer);
if (layer == null)
{
Console.WriteLine("Couldn't fetch advertised layer " + iLayer);
System.Environment.Exit(-1);
}
else
{
layerset.Add(layer);
}
}
///Declare trees
GH_Structure <GH_String> layname = new GH_Structure <GH_String>();
GH_Structure <GH_Integer> fcs = new GH_Structure <GH_Integer>();
GH_Structure <GH_Rectangle> recs = new GH_Structure <GH_Rectangle>();
GH_Structure <GH_String> sRefs = new GH_Structure <GH_String>();
GH_Structure <GH_String> fnames = new GH_Structure <GH_String>();
GH_Structure <GH_String> fset = new GH_Structure <GH_String>();
GH_Structure <GH_Point> gset = new GH_Structure <GH_Point>();
GH_Structure <GH_Point> gsetUser = new GH_Structure <GH_Point>();
GH_Structure <GH_Rectangle> recsUser = new GH_Structure <GH_Rectangle>();
///Loop through each layer. Layers usually occur in Geodatabase GDB format. SHP usually has only one layer.
for (int iLayer = 0; iLayer < ds.GetLayerCount(); iLayer++)
{
OSGeo.OGR.Layer layer = ds.GetLayerByIndex(iLayer);
if (layer == null)
{
Console.WriteLine("Couldn't fetch advertised layer " + iLayer);
System.Environment.Exit(-1);
}
long count = layer.GetFeatureCount(1);
int featureCount = System.Convert.ToInt32(count);
fcs.Append(new GH_Integer(featureCount), new GH_Path(iLayer));
layname.Append(new GH_String(layer.GetName()), new GH_Path(iLayer));
///Get the spatial reference of the input vector file and set to WGS84 if not known
OSGeo.OSR.SpatialReference sourceSRS = new SpatialReference(Osr.SRS_WKT_WGS84);
string sRef = "";
if (layer.GetSpatialRef() == null)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Coordinate Reference System (CRS) is missing. CRS set automatically set to WGS84. Mapbox to 3857");
//sr.ImportFromXML(shpFileLoc);
//sr.ImportFromEPSG(3857);
//sr.SetWellKnownGeogCS("EPSG:3857");
sourceSRS.SetFromUserInput("WGS84"); ///this seems to work where SetWellKnownGeogCS doesn't
string pretty = "";
sourceSRS.ExportToPrettyWkt(out pretty, 0);
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, pretty);
//sr.SetWellKnownGeogCS("WGS84");
//sr.SetWellKnownGeogCS("EPSG:3857");
sRef = "Coordinate Reference System (CRS) is missing. CRS set automatically set to WGS84.";
}
else
{
if (layer.GetSpatialRef().Validate() != 0)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Coordinate Reference System (CRS) is unknown or unsupported. CRS set automatically set to WGS84.");
sourceSRS.SetWellKnownGeogCS("WGS84");
sRef = "Coordinate Reference System (CRS) is unknown or unsupported. SRS set automatically set to WGS84.";
}
else
{
sourceSRS = layer.GetSpatialRef();
sourceSRS.ExportToWkt(out sRef);
try
{
int sourceSRSInt = Int16.Parse(sourceSRS.GetAuthorityCode(null));
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Source Coordinate Reference System (CRS) from layer " + layer.GetName() + " is EPSG:" + sourceSRSInt + ".");
}
catch
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Failed to get Source Coordinate Reference System (CRS) from layer " + layer.GetName() + ".");
}
}
}
sRefs.Append(new GH_String(sRef), new GH_Path(iLayer));
///Set transform from input spatial reference to Rhino spatial reference
///TODO: look into adding a step for transforming to CRS set in SetCRS
OSGeo.OSR.SpatialReference rhinoSRS = new OSGeo.OSR.SpatialReference("");
rhinoSRS.SetWellKnownGeogCS("WGS84");
///TODO: verify the userSRS is valid
///TODO: use this as override of global SetSRS
OSGeo.OSR.SpatialReference userSRS = new OSGeo.OSR.SpatialReference("");
userSRS.SetFromUserInput(userSRStext);
///This transform moves and scales the points required in going from userSRS to XYZ and vice versa
Transform userSRSToModel = Heron.Convert.GetUserSRSToModelTransform(userSRS);
Transform modelToUserSRS = Heron.Convert.GetModelToUserSRSTransform(userSRS);
OSGeo.OSR.CoordinateTransformation coordTransformSourceToRhino = new OSGeo.OSR.CoordinateTransformation(sourceSRS, rhinoSRS);
OSGeo.OSR.CoordinateTransformation coordTransformRhinoToUser = new OSGeo.OSR.CoordinateTransformation(rhinoSRS, userSRS);
OSGeo.OSR.CoordinateTransformation coordTransformSourceToUser = new OSGeo.OSR.CoordinateTransformation(sourceSRS, userSRS);
OSGeo.OSR.CoordinateTransformation revTransformUserToRhino = new OSGeo.OSR.CoordinateTransformation(userSRS, rhinoSRS);
OSGeo.OSR.CoordinateTransformation revTransformRhinoToSource = new OSGeo.OSR.CoordinateTransformation(rhinoSRS, sourceSRS);
OSGeo.OSR.CoordinateTransformation revTransformUserToSource = new OSGeo.OSR.CoordinateTransformation(userSRS, sourceSRS);
///Get OGR envelope of the data in the layer in the sourceSRS
OSGeo.OGR.Envelope ext = new OSGeo.OGR.Envelope();
layer.GetExtent(ext, 1);
Point3d extMinSource = new Point3d();
Point3d extMaxSource = new Point3d();
extMinSource.X = ext.MinX;
extMinSource.Y = ext.MinY;
extMaxSource.X = ext.MaxX;
extMaxSource.Y = ext.MaxY;
///Get bounding box of data in layer for coordinate transformation in Rhino SRS
double[] extMinPT = new double[3] {
extMinSource.X, extMinSource.Y, extMinSource.Z
};
double[] extMaxPT = new double[3] {
extMaxSource.X, extMaxSource.Y, extMaxSource.Z
};
///Transform corners of extents from Source to Rhino SRS
coordTransformSourceToRhino.TransformPoint(extMinPT);
coordTransformSourceToRhino.TransformPoint(extMaxPT);
///Get extents in Rhino SRS
Point3d extPTmin = new Point3d(extMinPT[0], extMinPT[1], extMinPT[2]);
Point3d extPTmax = new Point3d(extMaxPT[0], extMaxPT[1], extMaxPT[2]);
Rectangle3d rec = new Rectangle3d(Plane.WorldXY, Heron.Convert.WGSToXYZ(extPTmin), Heron.Convert.WGSToXYZ(extPTmax));
recs.Append(new GH_Rectangle(rec), new GH_Path(iLayer));
if (boundary.Count == 0 && cropIt == true)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Define a boundary or set cropIt to False");
}
else if (boundary.Count == 0 && cropIt == false)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Clipping boundary has not been defined. File extents will be used instead");
boundary.Add(rec.ToNurbsCurve());
}
///Get bounding box of data in layer for coordinate transformation in User SRS
///TODO: currently the extents are showing odd results that don't seem to be shifting properly
double[] extMinPTUser = new double[3] {
extMinSource.X, extMinSource.Y, extMinSource.Z
};
double[] extMaxPTUser = new double[3] {
extMaxSource.X, extMaxSource.Y, extMaxSource.Z
};
///Transform corners of extents from Source to userSRS
coordTransformSourceToUser.TransformPoint(extMinPTUser);
coordTransformSourceToUser.TransformPoint(extMaxPTUser);
///Get extents in userSRS
Point3d extPTminUser = new Point3d(extMinPTUser[0], extMinPTUser[1], extMinPTUser[2]);
Point3d extPTmaxUser = new Point3d(extMaxPTUser[0], extMaxPTUser[1], extMaxPTUser[2]);
Rectangle3d recUser = new Rectangle3d(Plane.WorldXY, Heron.Convert.UserSRSToXYZ(extPTminUser, userSRSToModel), Heron.Convert.UserSRSToXYZ(extPTmaxUser, userSRSToModel));
recsUser.Append(new GH_Rectangle(recUser), new GH_Path(iLayer));
///Loop through input boundaries
for (int i = 0; i < boundary.Count; i++)
{
OSGeo.OGR.FeatureDefn def = layer.GetLayerDefn();
///Get the field names
List <string> fieldnames = new List <string>();
for (int iAttr = 0; iAttr < def.GetFieldCount(); iAttr++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iAttr);
fnames.Append(new GH_String(fdef.GetNameRef()), new GH_Path(i, iLayer));
}
///Check if boundary is contained in extent
if (!rec.IsValid || ((rec.Height == 0) && (rec.Width == 0)))
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "One or more vector datasource bounds are not valid.");
OSGeo.OGR.Feature feat;
int m = 0;
while ((feat = layer.GetNextFeature()) != null)
{
///Loop through field values
for (int iField = 0; iField < feat.GetFieldCount(); iField++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iField);
fset.Append(new GH_String(feat.GetFieldAsString(iField)), new GH_Path(i, iLayer, m));
fdef.Dispose();
}
m++;
feat.Dispose();
}
}
else if (boundary[i] == null)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Clipping boundary " + i + " not set.");
}
else if (!boundary[i].IsValid)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Clipping boundary " + i + " is not valid.");
}
else if (rec.IsValid && Curve.PlanarClosedCurveRelationship(rec.ToNurbsCurve(), boundary[i], Plane.WorldXY, Rhino.RhinoDoc.ActiveDoc.ModelAbsoluteTolerance) == RegionContainment.Disjoint)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "One or more boundaries may be outside the bounds of the vector datasource.");
}
else
{
///Create bounding box for clipping geometry
Point3d min = Heron.Convert.XYZToWGS(boundary[i].GetBoundingBox(true).Min);
Point3d max = Heron.Convert.XYZToWGS(boundary[i].GetBoundingBox(true).Max);
double[] minpT = new double[3];
double[] maxpT = new double[3];
minpT[0] = min.X;
minpT[1] = min.Y;
minpT[2] = min.Z;
maxpT[0] = max.X;
maxpT[1] = max.Y;
maxpT[2] = max.Z;
revTransformRhinoToSource.TransformPoint(minpT);
revTransformRhinoToSource.TransformPoint(maxpT);
///TODO: allow boundary to be converted to userSRS
//revTransformUserToRhino.TransformPoint(minpT);
//revTransformUserToRhino.TransformPoint(maxpT);
///Convert to OGR geometry
///TODO: add conversion from GH geometry to OGR to Convert class
OSGeo.OGR.Geometry ebbox = OSGeo.OGR.Geometry.CreateFromWkt("POLYGON((" + minpT[0] + " " + minpT[1] + ", " + minpT[0] + " " + maxpT[1] + ", " + maxpT[0] + " " + maxpT[1] + ", " + maxpT[0] + " " + minpT[1] + ", " + minpT[0] + " " + minpT[1] + "))");
///Clip Shapefile
///http://pcjericks.github.io/py-gdalogr-cookbook/vector_layers.html
///TODO: allow for polyline/curve as clipper, not just bounding box
OSGeo.OGR.Layer clipped_layer = layer;
if (cropIt)
{
clipped_layer.SetSpatialFilter(ebbox);
}
///Loop through geometry
OSGeo.OGR.Feature feat;
def = clipped_layer.GetLayerDefn();
int m = 0;
while ((feat = clipped_layer.GetNextFeature()) != null)
{
OSGeo.OGR.Geometry geom = feat.GetGeometryRef();
OSGeo.OGR.Geometry sub_geom;
OSGeo.OGR.Geometry geomUser = feat.GetGeometryRef().Clone();// geom.Clone();
OSGeo.OGR.Geometry sub_geomUser;
///reproject geometry to WGS84
///TODO: look into using the SetCRS global variable here
geom.Transform(coordTransformSourceToRhino);
geomUser.Transform(coordTransformSourceToUser);
if (feat.GetGeometryRef() != null)
{
///Start get points if open polylines and points
for (int gpc = 0; gpc < geom.GetPointCount(); gpc++)
{
///Loop through geometry points for Rhino SRS
double[] pT = new double[3];
pT[0] = geom.GetX(gpc);
pT[1] = geom.GetY(gpc);
pT[2] = geom.GetZ(gpc);
if (Double.IsNaN(geom.GetZ(gpc)))
{
pT[2] = 0;
}
Point3d pt3D = new Point3d();
pt3D.X = pT[0];
pt3D.Y = pT[1];
pt3D.Z = pT[2];
gset.Append(new GH_Point(Heron.Convert.WGSToXYZ(pt3D)), new GH_Path(i, iLayer, m));
///Loop through geometry points for User SRS
double[] pTUser = new double[3];
pTUser[0] = geomUser.GetX(gpc);
pTUser[1] = geomUser.GetY(gpc);
pTUser[2] = geomUser.GetZ(gpc);
if (Double.IsNaN(geomUser.GetZ(gpc)))
{
pTUser[2] = 0;
}
Point3d pt3DUser = new Point3d();
pt3DUser.X = pTUser[0];
pt3DUser.Y = pTUser[1];
pt3DUser.Z = pTUser[2];
if ((userSRS.IsProjected() == 0) && (userSRS.IsLocal() == 0))
{
gsetUser.Append(new GH_Point(Heron.Convert.WGSToXYZ(pt3DUser)), new GH_Path(i, iLayer, m));
}
else
{
gsetUser.Append(new GH_Point(userSRSToModel * pt3DUser), new GH_Path(i, iLayer, m));
}
///End loop through geometry points
/// Get Feature Values
if (fset.PathExists(new GH_Path(i, iLayer, m)))
{
fset.get_Branch(new GH_Path(i, iLayer, m)).Clear();
}
for (int iField = 0; iField < feat.GetFieldCount(); iField++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iField);
if (feat.IsFieldSet(iField))
{
fset.Append(new GH_String(feat.GetFieldAsString(iField)), new GH_Path(i, iLayer, m));
}
else
{
fset.Append(new GH_String("null"), new GH_Path(i, iLayer, m));
}
}
///End Get Feature Values
}
///End getting points if open polylines or points
///Start getting points if closed polylines and multipolygons
for (int gi = 0; gi < geom.GetGeometryCount(); gi++)
{
sub_geom = geom.GetGeometryRef(gi);
OSGeo.OGR.Geometry subsub_geom;
//List<Point3d> geom_list = new List<Point3d>();
sub_geomUser = geomUser.GetGeometryRef(gi);
OSGeo.OGR.Geometry subsub_geomUser;
if (sub_geom.GetGeometryCount() > 0)
{
for (int n = 0; n < sub_geom.GetGeometryCount(); n++)
{
subsub_geom = sub_geom.GetGeometryRef(n);
subsub_geomUser = sub_geomUser.GetGeometryRef(n);
for (int ptnum = 0; ptnum < subsub_geom.GetPointCount(); ptnum++)
{
///Loop through geometry points
double[] pT = new double[3];
pT[0] = subsub_geom.GetX(ptnum);
pT[1] = subsub_geom.GetY(ptnum);
pT[2] = subsub_geom.GetZ(ptnum);
Point3d pt3D = new Point3d();
pt3D.X = pT[0];
pt3D.Y = pT[1];
pt3D.Z = pT[2];
gset.Append(new GH_Point(Heron.Convert.WGSToXYZ(pt3D)), new GH_Path(i, iLayer, m, gi, n));
double[] pTUser = new double[3];
pTUser[0] = subsub_geomUser.GetX(ptnum);
pTUser[1] = subsub_geomUser.GetY(ptnum);
pTUser[2] = subsub_geomUser.GetZ(ptnum);
Point3d pt3DUser = new Point3d();
pt3DUser.X = pTUser[0];
pt3DUser.Y = pTUser[1];
pt3DUser.Z = pTUser[2];
if ((userSRS.IsProjected() == 0) && (userSRS.IsLocal() == 0))
{
gsetUser.Append(new GH_Point(Heron.Convert.WGSToXYZ(pt3DUser)), new GH_Path(i, iLayer, m, gi, n));
}
else
{
gsetUser.Append(new GH_Point(userSRSToModel * pt3DUser), new GH_Path(i, iLayer, m, gi, n));
}
///End loop through geometry points
}
subsub_geom.Dispose();
subsub_geomUser.Dispose();
}
}
else
{
for (int ptnum = 0; ptnum < sub_geom.GetPointCount(); ptnum++)
{
///Loop through geometry points
double[] pT = new double[3];
pT[0] = sub_geom.GetX(ptnum);
pT[1] = sub_geom.GetY(ptnum);
pT[2] = sub_geom.GetZ(ptnum);
Point3d pt3D = new Point3d();
pt3D.X = pT[0];
pt3D.Y = pT[1];
pt3D.Z = pT[2];
gset.Append(new GH_Point(Heron.Convert.WGSToXYZ(pt3D)), new GH_Path(i, iLayer, m, gi));
double[] pTUser = new double[3];
pTUser[0] = sub_geomUser.GetX(ptnum);
pTUser[1] = sub_geomUser.GetY(ptnum);
pTUser[2] = sub_geomUser.GetZ(ptnum);
Point3d pt3DUser = new Point3d();
pt3DUser.X = pTUser[0];
pt3DUser.Y = pTUser[1];
pt3DUser.Z = pTUser[2];
if ((userSRS.IsProjected() == 0) && (userSRS.IsLocal() == 0))
{
gsetUser.Append(new GH_Point(Heron.Convert.WGSToXYZ(pt3DUser)), new GH_Path(i, iLayer, m, gi));
}
else
{
gsetUser.Append(new GH_Point(userSRSToModel * pt3DUser), new GH_Path(i, iLayer, m, gi));
}
///End loop through geometry points
}
}
sub_geom.Dispose();
sub_geomUser.Dispose();
/// Get Feature Values
if (fset.PathExists(new GH_Path(i, iLayer, m)))
{
fset.get_Branch(new GH_Path(i, iLayer, m)).Clear();
}
for (int iField = 0; iField < feat.GetFieldCount(); iField++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iField);
if (feat.IsFieldSet(iField))
{
fset.Append(new GH_String(feat.GetFieldAsString(iField)), new GH_Path(i, iLayer, m));
}
else
{
fset.Append(new GH_String("null"), new GH_Path(i, iLayer, m));
}
}
///End Get Feature Values
}
//m++;
}
m++;
geom.Dispose();
geomUser.Dispose();
feat.Dispose();
} ///end while loop through features
}
} //end loop through boundaries
layer.Dispose();
}///end loop through layers
ds.Dispose();
DA.SetDataTree(0, layname);
DA.SetDataTree(1, fcs);
DA.SetDataTree(2, recs);
DA.SetDataTree(3, sRefs);
DA.SetDataTree(4, fnames);
DA.SetDataTree(5, fset);
DA.SetDataTree(6, gset);
DA.SetDataTree(7, gsetUser);
DA.SetDataTree(8, recsUser);
}
/// <summary>
/// Method to get a layer based on a private copy of the data source
/// </summary>
/// <param name="layerIndex">The layer index</param>
/// <param name="ogrDataSource">The data source</param>
/// <returns></returns>
private OgrLayer GetLayer(int layerIndex, out OgrDataSource ogrDataSource)
{
ogrDataSource = OgrOgr.OpenShared(Filename, 0);
return(ogrDataSource.GetLayerByIndex(layerIndex));
}
protected override void SolveInstance(IGH_DataAccess DA)
{
List <Curve> boundary = new List <Curve>();
DA.GetDataList <Curve>(0, boundary);
string URL = string.Empty;
DA.GetData <string>("REST URL", ref URL);
if (!URL.EndsWith("/"))
{
URL = URL + "/";
}
string userSRStext = string.Empty;
DA.GetData <string>("User Spatial Reference System", ref userSRStext);
bool run = false;
DA.GetData <bool>("run", ref run);
///GDAL setup
RESTful.GdalConfiguration.ConfigureOgr();
///TODO: implement SetCRS here.
///Option to set CRS here to user-defined. Needs a SetCRS global variable.
OSGeo.OSR.SpatialReference userSRS = new OSGeo.OSR.SpatialReference("");
userSRS.SetFromUserInput(userSRStext);
int userSRSInt = Int16.Parse(userSRS.GetAuthorityCode(null));
///Set transform from input spatial reference to Rhino spatial reference
OSGeo.OSR.SpatialReference rhinoSRS = new OSGeo.OSR.SpatialReference("");
rhinoSRS.SetWellKnownGeogCS("WGS84");
///This transform moves and scales the points required in going from userSRS to XYZ and vice versa
Transform userSRSToModelTransform = Heron.Convert.GetUserSRSToModelTransform(userSRS);
Transform modelToUserSRSTransform = Heron.Convert.GetModelToUserSRSTransform(userSRS);
GH_Structure <GH_String> mapquery = new GH_Structure <GH_String>();
GH_Structure <GH_Point> gsetUser = new GH_Structure <GH_Point>();
GH_Structure <IGH_GeometricGoo> gGoo = new GH_Structure <IGH_GeometricGoo>();
GH_Structure <GH_String> fset = new GH_Structure <GH_String>();
GH_Structure <GH_String> fieldnames = new GH_Structure <GH_String>();
for (int i = 0; i < boundary.Count; i++)
{
GH_Path cpath = new GH_Path(i);
BoundingBox bbox = boundary[i].GetBoundingBox(false);
bbox.Transform(modelToUserSRSTransform);
string restquery = URL +
"query?where=&text=&objectIds=&time=&geometry=" + bbox.Min.X + "%2C" + bbox.Min.Y + "%2C" + bbox.Max.X + "%2C" + bbox.Max.Y +
"&geometryType=esriGeometryEnvelope&inSR=" + userSRSInt +
"&spatialRel=esriSpatialRelIntersects" +
"&relationParam=&outFields=*" +
"&returnGeometry=true" +
"&maxAllowableOffset=" +
"&geometryPrecision=" +
"&outSR=" + userSRSInt +
"&returnIdsOnly=false" +
"&returnCountOnly=false" +
"&orderByFields=" +
"&groupByFieldsForStatistics=&outStatistics=" +
"&returnZ=true" +
"&returnM=false" +
"&gdbVersion=" +
"&returnDistinctValues=false" +
"&f=json";
mapquery.Append(new GH_String(restquery), cpath);
if (run)
{
//string result = Heron.Convert.HttpToJson(restquery);
OSGeo.OGR.DataSource dataSource = OSGeo.OGR.Ogr.Open("ESRIJSON:" + restquery, 0);
if (dataSource == null)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Error, "The vector datasource was unreadable by this component. It may not a valid file type for this component or otherwise null/empty.");
}
///Loop through each layer. Likely not any layers in a REST service
for (int iLayer = 0; iLayer < dataSource.GetLayerCount(); iLayer++)
{
OSGeo.OGR.Layer ogrLayer = dataSource.GetLayerByIndex(iLayer);
if (ogrLayer == null)
{
Console.WriteLine($"Couldn't fetch advertised layer {iLayer}");
System.Environment.Exit(-1);
}
long count = ogrLayer.GetFeatureCount(1);
int featureCount = System.Convert.ToInt32(count);
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, $"Layer #{iLayer} {ogrLayer.GetName()} has {featureCount} features");
OSGeo.OGR.FeatureDefn def = ogrLayer.GetLayerDefn();
///Get the field names
for (int iAttr = 0; iAttr < def.GetFieldCount(); iAttr++)
{
///TODO: Look into GetAlternativeNameRef() for field aliases (more readable) available in GDAL 3.2
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iAttr);
fieldnames.Append(new GH_String(fdef.GetNameRef()), new GH_Path(i, iLayer));
}
///Loop through geometry
OSGeo.OGR.Feature feat;
def = ogrLayer.GetLayerDefn();
int m = 0;
while ((feat = ogrLayer.GetNextFeature()) != null)
{
OSGeo.OGR.Geometry geomUser = feat.GetGeometryRef().Clone();
OSGeo.OGR.Geometry sub_geomUser;
///reproject geometry to WGS84 and userSRS
///TODO: look into using the SetCRS global variable here
if (geomUser.GetSpatialReference() == null)
{
geomUser.AssignSpatialReference(userSRS);
}
geomUser.TransformTo(userSRS);
if (feat.GetGeometryRef() != null)
{
if (!pointsOnly)
{
///Convert GDAL geometries to IGH_GeometricGoo
gGoo.AppendRange(Heron.Convert.OgrGeomToGHGoo(geomUser, userSRSToModelTransform), new GH_Path(i, iLayer, m));
/// Get Feature Values
if (fset.PathExists(new GH_Path(i, iLayer, m)))
{
fset.get_Branch(new GH_Path(i, iLayer, m)).Clear();
}
for (int iField = 0; iField < feat.GetFieldCount(); iField++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iField);
if (feat.IsFieldSet(iField))
{
fset.Append(new GH_String(feat.GetFieldAsString(iField)), new GH_Path(i, iLayer, m));
}
else
{
fset.Append(new GH_String("null"), new GH_Path(i, iLayer, m));
}
}
///End get Feature Values
}
else
{
///Start get points if open polylines and points
for (int gpc = 0; gpc < geomUser.GetPointCount(); gpc++)
{
///Loop through geometry points for User SRS
double[] ogrPtUser = new double[3];
geomUser.GetPoint(gpc, ogrPtUser);
Point3d pt3DUser = new Point3d(ogrPtUser[0], ogrPtUser[1], ogrPtUser[2]);
pt3DUser.Transform(userSRSToModelTransform);
gGoo.Append(new GH_Point(pt3DUser), new GH_Path(i, iLayer, m));
///End loop through geometry points
/// Get Feature Values
if (fset.PathExists(new GH_Path(i, iLayer, m)))
{
fset.get_Branch(new GH_Path(i, iLayer, m)).Clear();
}
for (int iField = 0; iField < feat.GetFieldCount(); iField++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iField);
if (feat.IsFieldSet(iField))
{
fset.Append(new GH_String(feat.GetFieldAsString(iField)), new GH_Path(i, iLayer, m));
}
else
{
fset.Append(new GH_String("null"), new GH_Path(i, iLayer, m));
}
}
///End Get Feature Values
}
///End getting points if open polylines or points
///Start getting points if closed polylines and multipolygons
for (int gi = 0; gi < geomUser.GetGeometryCount(); gi++)
{
sub_geomUser = geomUser.GetGeometryRef(gi);
OSGeo.OGR.Geometry subsub_geomUser;
if (sub_geomUser.GetGeometryCount() > 0)
{
for (int n = 0; n < sub_geomUser.GetGeometryCount(); n++)
{
subsub_geomUser = sub_geomUser.GetGeometryRef(n);
for (int ptnum = 0; ptnum < subsub_geomUser.GetPointCount(); ptnum++)
{
///Loop through geometry points for User SRS
double[] ogrPtUser = new double[3];
subsub_geomUser.GetPoint(ptnum, ogrPtUser);
Point3d pt3DUser = new Point3d(ogrPtUser[0], ogrPtUser[1], ogrPtUser[2]);
pt3DUser.Transform(userSRSToModelTransform);
gGoo.Append(new GH_Point(pt3DUser), new GH_Path(i, iLayer, m, gi, n));
///End loop through geometry points
}
subsub_geomUser.Dispose();
}
}
else
{
for (int ptnum = 0; ptnum < sub_geomUser.GetPointCount(); ptnum++)
{
///Loop through geometry points for User SRS
double[] ogrPtUser = new double[3];
sub_geomUser.GetPoint(ptnum, ogrPtUser);
Point3d pt3DUser = new Point3d(ogrPtUser[0], ogrPtUser[1], ogrPtUser[2]);
pt3DUser.Transform(userSRSToModelTransform);
gGoo.Append(new GH_Point(pt3DUser), new GH_Path(i, iLayer, m, gi));
///End loop through geometry points
}
}
sub_geomUser.Dispose();
/// Get Feature Values
if (fset.PathExists(new GH_Path(i, iLayer, m)))
{
fset.get_Branch(new GH_Path(i, iLayer, m)).Clear();
}
for (int iField = 0; iField < feat.GetFieldCount(); iField++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iField);
if (feat.IsFieldSet(iField))
{
fset.Append(new GH_String(feat.GetFieldAsString(iField)), new GH_Path(i, iLayer, m));
}
else
{
fset.Append(new GH_String("null"), new GH_Path(i, iLayer, m));
}
}
///End Get Feature Values
} ///End closed polygons and multipolygons
} ///End points only
}
m++;
geomUser.Dispose();
feat.Dispose();
}///end while loop through features
}
dataSource.Dispose();
}
}
///Not the most elegant way of setting outputs only on run
if (run)
{
DA.SetDataList(0, fieldnames.get_Branch(0));
DA.SetDataTree(1, fset);
DA.SetDataTree(2, gGoo);
}
DA.SetDataTree(3, mapquery);
}
/// <summary>
/// Loads a Ogr datasource with the specified layer
/// </summary>
/// <param name="filename">datasource</param>
/// <param name="layerNum">number of layer</param>
public Ogr(string filename, int layerNum)
{
Filename = filename;
_ogrDataSource = OgrOgr.Open(filename, 0);
_ogrLayer = _ogrDataSource.GetLayerByIndex(layerNum);
OsrSpatialReference spatialReference = _ogrLayer.GetSpatialRef();
if (spatialReference != null)
SRID = spatialReference.AutoIdentifyEPSG();
}
public Ogr(string filename, string layerName)
{
Filename = filename;
_ogrDataSource = OgrOgr.Open(filename, 1);
_ogrLayer = _ogrDataSource.GetLayerByName(layerName);
OsrSpatialReference spatialReference = _ogrLayer.GetSpatialRef();
if (spatialReference != null)
_srid = spatialReference.AutoIdentifyEPSG();
}
/// <summary>
/// This is the method that actually does the work.
/// </summary>
/// <param name="DA">The DA object is used to retrieve from inputs and store in outputs.</param>
protected override void SolveInstance(IGH_DataAccess DA)
{
///Setup location
Point3d location = new Point3d();
DA.GetData(0, ref location);
double lat = Heron.Convert.XYZToWGS(location).Y;
double lon = Heron.Convert.XYZToWGS(location).X;
///Setup contour style and unit type
List <double> contourNums = new List <double>();
DA.GetDataList <double>(1, contourNums);
string contourType = String.Empty;
double unitConversion = Rhino.RhinoMath.UnitScale(Rhino.RhinoDoc.ActiveDoc.ModelUnitSystem, Rhino.UnitSystem.Meters);
contourNums.Sort();
for (int i = 0; i < contourNums.Count; i++)
{
double contourNum = contourNums[i];
if (contourNum < 0.0)
{
contourNum = 0.0;
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Minimum countour must be greater than 0.");
}
if (MinutesOrMeters == "Distance")
{
contourType = "contours_meters=";
contourNum = Math.Round(contourNum * unitConversion, 0);
if (contourNum < 1)
{
contourNum = 1;
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Minimum distance contour must be greater than the Rhino unit equivalent of 1 meter.");
}
if (contourNum > 100000)
{
contourNum = 100000;
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Maximum distance contour must be less than the Rhino unit equivalent of 1,000km.");
}
}
else
{
contourType = "contours_minutes=";
if (contourNum > 60)
{
contourNum = 60;
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Maximum minute contour is 60. Contour value reduced to 60.");
}
}
contourNums[i] = contourNum;
}
///Setup denoise and make sure Denoise is between 0..1
double?denoiseNum = null;
DA.GetData(2, ref denoiseNum);
if (denoiseNum < 0.0)
{
denoiseNum = 0.0;
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Denoise must be greater than 0.");
}
if (denoiseNum > 1.0)
{
denoiseNum = 1.0;
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Denoise must be less than 1.0");
}
///Setup generalize and make sure it's greater than 0
double?generalize = null;
DA.GetData(3, ref generalize);
double?generalizeNum = generalize * unitConversion;
if (generalizeNum < 0.0)
{
generalizeNum = 0.0;
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Generalize must be greater than 0");
}
///Setup Mapbox token
string apiKey = string.Empty;
DA.GetData(4, ref apiKey);
string mbToken = apiKey;
if (mbToken == "")
{
string hmbToken = System.Environment.GetEnvironmentVariable("HERONMAPBOXTOKEN");
if (hmbToken != null)
{
mbToken = hmbToken;
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Using Mapbox token stored in Environment Variable HERONMAPBOXTOKEN.");
}
else
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Error, "No Mapbox token is specified. Please get a valid token from mapbox.com");
return;
}
}
///Setup run
bool run = false;
DA.GetData(5, ref run);
///Outputs
List <IGH_GeometricGoo> isochrones = new List <IGH_GeometricGoo>();
List <string> urls = new List <string>();
///GDAL setup
RESTful.GdalConfiguration.ConfigureOgr();
OSGeo.OGR.Ogr.RegisterAll();
///Set transform from input spatial reference to Rhino spatial reference
OSGeo.OSR.SpatialReference rhinoSRS = new OSGeo.OSR.SpatialReference("");
rhinoSRS.SetWellKnownGeogCS("WGS84");
///TODO: use this as override of global SetSRS
OSGeo.OSR.SpatialReference userSRS = new OSGeo.OSR.SpatialReference("");
//userSRS.SetFromUserInput(userSRStext);
userSRS.SetFromUserInput("WGS84");
///These transforms move and scale in order to go from userSRS to XYZ and vice versa
Transform userSRSToModelTransform = Heron.Convert.GetUserSRSToModelTransform(userSRS);
///Construct URL query string
int increment = 0;
while (increment < contourNums.Count)
{
string contourString = contourNums[increment].ToString();
if (increment + 1 < contourNums.Count)
{
contourString = contourString + "%2C" + contourNums[increment + 1];
}
if (increment + 2 < contourNums.Count)
{
contourString = contourString + "%2C" + contourNums[increment + 2];
}
if (increment + 3 < contourNums.Count)
{
contourString = contourString + "%2C" + contourNums[increment + 3];
}
string url = @"https://api.mapbox.com/isochrone/v1/mapbox/";
if (!String.IsNullOrEmpty(Profile))
{
url = url + Profile.ToLower() + "/";
}
if (lon > -180.0 && lon <= 180.0)
{
url = url + lon + "%2C";
}
if (lat > -90.0 && lat <= 90.0)
{
url = url + lat + "?";
}
if (!String.IsNullOrEmpty(contourType))
{
url = url + contourType.ToLower();
}
if (contourString != null)
{
url = url + contourString;
}
if (polygons == "Meshes")
{
url = url + "&polygons=true";
}
else
{
url = url + "&polygons=false";
}
if (denoiseNum != null)
{
url = url + "&denoise=" + denoiseNum;
}
if (generalizeNum != null)
{
url = url + "&generalize=" + generalizeNum;
}
if (mbToken != "")
{
url = url + "&access_token=" + mbToken;
}
urls.Add(url);
increment = increment + 4;
}
if (run)
{
foreach (string u in urls)
{
List <IGH_GeometricGoo> gGoo = new List <IGH_GeometricGoo>();
OSGeo.OGR.DataSource dataSource = OSGeo.OGR.Ogr.Open(u, 0);
if (dataSource == null)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Error, "Mapbox returned an invalid response.");
return;
}
///Only interested in geometry, not fields or values
OSGeo.OGR.Layer ogrLayer = dataSource.GetLayerByIndex(0);
OSGeo.OGR.Feature feat;
while ((feat = ogrLayer.GetNextFeature()) != null)
{
if (feat.GetGeometryRef() == null)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Error, "Isochrone may be too small or otherwise degenerate.");
continue;
}
OSGeo.OGR.Geometry geomUser = feat.GetGeometryRef().Clone();
///reproject geometry to WGS84 and userSRS
///TODO: look into using the SetCRS global variable here
if (geomUser.GetSpatialReference() == null)
{
geomUser.AssignSpatialReference(userSRS);
}
geomUser.TransformTo(userSRS);
if (feat.GetGeometryRef() != null)
{
isochrones.AddRange(Heron.Convert.OgrGeomToGHGoo(geomUser, userSRSToModelTransform));
}
}
///Garbage cleanup
ogrLayer.Dispose();
dataSource.Dispose();
}
}
List <string> mbAtts = new List <string> {
"© Mapbox, © OpenStreetMap", "https://www.mapbox.com/about/maps/", "http://www.openstreetmap.org/copyright"
};
DA.SetDataList(0, isochrones);
DA.SetDataList(1, urls);
DA.SetDataList(2, mbAtts);
}
///通过坡度线筛选等值线
/// 1 清理等值线,长度\ 值域
/// 2 等值线转面
/// 3 根据坡度线求交等值线,并通过面积筛选
/// 输入文件路径,输出临时shp
///
/************************************** 清理等值线 *****************************************
* /// <summary>
* /// 通过线长,值 清理等值线
* /// </summary>
* /// <param name="filePath"></param>
* public static void cleanPolyline(string filePath)
* {
* //获取数据
* OSGeo.OGR.Ogr.RegisterAll();
* OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
* OSGeo.OGR.DataSource ds = dr.Open(filePath, 1);
* OSGeo.OGR.Layer fileLayer = ds.GetLayerByIndex(0);
*
* //获取Featuer数
* int featCount = fileLayer.GetFeatureCount(0);
*
* //求标准差
* // 1 拿到每个Featuer的Value
* double[] values = new double[featCount];
* for (int i = 0; i < featCount; i++)
* {
* OSGeo.OGR.Feature fileFeat = fileLayer.GetFeature(i);
* OSGeo.OGR.Geometry fileGeom = fileFeat.GetGeometryRef();
* values[i] = fileFeat.GetFieldAsDouble("EVE");
* }
*
* // 2 求Values的平均值
* double aue = UsefullTools.myAue(values);
*
* // 3 求values与平均值差的平方和
* double pingFangHe = 0;
* for (int i = 0; i < featCount; i++)
* {
* pingFangHe += (values[i] - aue) * (values[i] - aue);
* }
*
* // 4 每个值与平均值的差相加,除Featuer数.再开方,得到标准差
* double bzc = Math.Sqrt(pingFangHe / featCount);
*
* double minLength = 80;
* double maxLength = 600;
* double minValue = aue - bzc;
* double maxValue = aue + bzc;
*
* for (int i = 0; i < featCount; i++)
* {
* OSGeo.OGR.Feature fileFeat = fileLayer.GetFeature(i);
* OSGeo.OGR.Geometry fileGeom = fileFeat.GetGeometryRef();
* double featValue = fileFeat.GetFieldAsDouble("EVE");
* double FeatLength = fileGeom.Length();
* bool s1 = FeatLength < minLength || FeatLength > maxLength;
* bool s2 = featValue < minValue || featValue > maxValue;
* if (s1 || s2 || !fileGeom.IsRing())
* {
* fileLayer.DeleteFeature(i);
* }
* }
* string layerName = fileLayer.GetName();
* ds.ExecuteSQL("REPACK " + layerName, null, "");
* ds.Dispose();
* }
* /// <summary>
* /// 用来清理坡度线
* /// </summary>
* /// <param name="filePath"></param>
* public static void cleanPDPoly(string filePath)
* {
* //获取数据
* OSGeo.OGR.Ogr.RegisterAll();
* OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
* OSGeo.OGR.DataSource ds = dr.Open(filePath, 1);
* OSGeo.OGR.Layer fileLayer = ds.GetLayerByIndex(0);
*
* //获取Featuer数
* int featCount = fileLayer.GetFeatureCount(0);
*
* for (int i = 0; i < featCount; i++)
* {
* OSGeo.OGR.Feature fileFeat = fileLayer.GetFeature(i);
* OSGeo.OGR.Geometry fileGeom = fileFeat.GetGeometryRef();
* OSGeo.OGR.Geometry subGeom = fileGeom.GetGeometryRef(0);
* double FeatLength = subGeom.Length();
* bool s1 = FeatLength < 80 || FeatLength > 800;
*
* if (s1)
* {
* fileLayer.DeleteFeature(i);
* }
* }
* string layerName = fileLayer.GetName();
* ds.ExecuteSQL("REPACK " + layerName, null, "");
* ds.Dispose();
* }
*
* /******************************** 等值线转换为多边形 ***********************************************
*
*
* /// <summary>
* /// 等值线转为POLYGON
* /// </summary>
* /// <param name="filePath"></param>
* /// <returns></returns>
* public static string lineToPoly(string filePath)
* {
* OSGeo.OGR.Ogr.RegisterAll();
* OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
* OSGeo.OGR.DataSource lineDS = dr.Open(filePath,0);
* OSGeo.OGR.Layer lineLayer = lineDS.GetLayerByIndex(0);
* string savePath = filePath.Substring(0, filePath.LastIndexOf(".")) + "_ToPolygong.shp";
* //存在即删除
* if (System.IO.File.Exists(savePath))
* System.IO.File.Delete(savePath);
* //创建 一个新的数据源 for Polygon
* OSGeo.OGR.DataSource polyDS = dr.CreateDataSource(savePath, null);
* OSGeo.OGR.Layer polyLayer = polyDS.CreateLayer("", null, OSGeo.OGR.wkbGeometryType.wkbPolygon, null);
* OSGeo.OGR.FieldDefn fieldDf0 = new OSGeo.OGR.FieldDefn("LID", OSGeo.OGR.FieldType.OFTInteger);
* OSGeo.OGR.FieldDefn fieldDf1 = new OSGeo.OGR.FieldDefn("EVE", OSGeo.OGR.FieldType.OFTReal);
* polyLayer.CreateField(fieldDf0, 1);//ID
* polyLayer.CreateField(fieldDf1, 1);//Value
* for (int i = 0; i < lineLayer.GetFeatureCount(0); i++)
* {
* OSGeo.OGR.Feature lineFeat = lineLayer.GetFeature(i);
* OSGeo.OGR.Geometry lineGeom = lineFeat.GetGeometryRef();
* OSGeo.OGR.FeatureDefn featDF = new OSGeo.OGR.FeatureDefn("");
* OSGeo.OGR.Feature polyFeat = new OSGeo.OGR.Feature(featDF);
* OSGeo.OGR.Geometry polyGeom = new OSGeo.OGR.Geometry(OSGeo.OGR.wkbGeometryType.wkbPolygon);
* OSGeo.OGR.Geometry subGeom = new OSGeo.OGR.Geometry(OSGeo.OGR.wkbGeometryType.wkbLinearRing);
* int u = lineGeom.GetPointCount();
* for (int s = 0; s < u; s++)
* {
* double x = lineGeom.GetX(s);
* double y = lineGeom.GetY(s);
* double z = lineGeom.GetZ(s);
* subGeom.AddPoint(x, y, z);
* }
* subGeom.CloseRings();
* polyGeom.AddGeometry(subGeom);
* polyFeat.SetGeometry(polyGeom);
* polyLayer.CreateFeature(polyFeat);
* }
* polyLayer.Dispose();
* polyDS.Dispose();
* lineDS.Dispose();
* return savePath;
* }
*
* /************************************ 获取坡度线 ***************************************************
*
* private void getPDlines()
* {
* string _inFilepath = @"D:\code\testDATA\test2.img";
* string _outFilePath = @"D:\code\outputfile\test2.img";
* string _outShpPath = @"D:\code\outputfile\test2";
* SlopeDem.SlopeDemObj.Slope(_inFilepath, _outFilePath);
* SlopeDem.SlopeDemObj.CreatePolygon(_inFilepath, _outShpPath);
*
* }
*
* /************************************ 对比并筛选 ***************************************************/
/// <summary>
/// 通过是否相交和面积差,获得最小面积差相交要素的ID数组
/// </summary>
/// <returns></returns>
private static int[] getMinIdGroup(string dzLine, string pdLing)
{
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
OSGeo.OGR.DataSource dzDS = dr.Open(dzLine, 0);
OSGeo.OGR.DataSource pdDS = dr.Open(pdLing, 0);
OSGeo.OGR.Layer dzLayer = dzDS.GetLayerByIndex(0);
OSGeo.OGR.Layer pdLayer = pdDS.GetLayerByIndex(0);
int dzCount = dzLayer.GetFeatureCount(0);
int pdCount = pdLayer.GetFeatureCount(0);
//面积差值最小要素的ID数组
List <int> minIdG = new List <int>();
//坡度Layer中的每个要素,成为当前坡度参考线
for (int pdi = 0; pdi < pdCount; pdi++)
{
//Get 坡度要素
OSGeo.OGR.Feature pdFeat = pdLayer.GetFeature(pdi);
OSGeo.OGR.Geometry pdGeom = pdFeat.GetGeometryRef();
//前个面积差,循环结束将此值为最小面积差
double afterCha = -1;
//前个ID,循环结束将此值添加到minID中
int yesID = -1;
//查找与当前坡度要素有交集的等值线
for (int dzi = 0; dzi < dzCount; dzi++)
{
//get 等值线要素
OSGeo.OGR.Feature dzFeat = dzLayer.GetFeature(dzi);
OSGeo.OGR.Geometry dzGeom = dzFeat.GetGeometryRef();
if (dzGeom != null)
{
//判断是否相交
if (pdGeom.Intersect(dzGeom))
{
//求当前等值线要素与坡度线要素的面积差
double cha = Math.Abs(dzGeom.GetArea() - pdGeom.GetArea());
//如果前个面积差未被赋值,则把当前差赋值给前差,并记录ID
if (afterCha == -1)
{
afterCha = Math.Abs(dzGeom.GetArea() - pdGeom.GetArea());
yesID = dzi;
}
//如果前差已赋值,且当前差小于前差,则把当前差赋值给前差,并记录ID
else if (cha < afterCha)
{
afterCha = cha;
yesID = dzi;
}
}
}
}
//如果yesID被赋值,则把这个结果添加到ID数组中
if (yesID != -1)
{
minIdG.Add(yesID);
}
}
dzDS.Dispose();
pdDS.Dispose();
return(minIdG.ToArray());
}
private void pdfToolStripMenuItem_Click(object sender, EventArgs e)
{
for (int i = 0; i < mapBox1.Map.Layers.Count; i++)
{
if (mapBox1.Map.Layers[i].LayerName == SelectedLayer)
{
var layer = mapBox1.Map.Layers[i] as VectorLayer;
var dataSource = layer.DataSource as GeometryFeatureProvider;
OSGeo.OGR.Driver driverSH = OSGeo.OGR.Ogr.GetDriverByName("PDF");
var referance = new SpatialReference("PROJCS[\"WGS 84 / Pseudo-Mercator\",GEOGCS[\"WGS 84\",DATUM[\"WGS_1984\",SPHEROID[\"WGS 84\",6378137,298.257223563,AUTHORITY[\"EPSG\",\"7030\"]],AUTHORITY[\"EPSG\",\"6326\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4326\"]],PROJECTION[\"Mercator_1SP\"],PARAMETER[\"central_meridian\",0],PARAMETER[\"scale_factor\",1],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"X\",EAST],AXIS[\"Y\",NORTH],EXTENSION[\"PROJ4\",\"+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs\"],AUTHORITY[\"EPSG\",\"3857\"]]");
OSGeo.OGR.DataSource dataSourceSH = driverSH.CreateDataSource(Application.StartupPath + "\\" + SelectedLayer + ".pdf", new string[] { "ENCODING=UTF-16" });
var layerSH = dataSourceSH.CreateLayer("PointLayer", referance, OSGeo.OGR.wkbGeometryType.wkbPoint, new string[] { "ENCODING=UTF-16" });
layerSH.StartTransaction();
for (int k = 0; k < dataSource.Features.Columns.Count; k++)
{
OSGeo.OGR.FieldDefn field = new OSGeo.OGR.FieldDefn(dataSource.Features.Columns[k].Caption, OSGeo.OGR.FieldType.OFTString);
layerSH.CreateField(field, 1);
}
for (int k = 0; k < dataSource.Features.Rows.Count; k++)
{
OSGeo.OGR.Feature feature = new OSGeo.OGR.Feature(layerSH.GetLayerDefn());
if (!string.IsNullOrEmpty(dataSource.Features.Rows[k]["geom_wkt"].ToString()))
{
OSGeo.OGR.Geometry geom = OSGeo.OGR.Geometry.CreateFromWkt(dataSource.Features.Rows[k]["geom_wkt"].ToString());
feature.SetGeometry(geom);
}
for (int x = 0; x < dataSource.Features.Columns.Count; x++)
{
var data = dataSource.Features.Rows[k][x].ToString();
feature.SetField(dataSource.Features.Columns[x].Caption, data);
}
try
{
layerSH.CreateFeature(feature);
feature.Dispose();
}
catch (Exception)
{
}
}
layerSH.CommitTransaction();
layerSH.SyncToDisk();
layerSH.Dispose();
dataSourceSH.FlushCache();
dataSourceSH.Dispose();
driverSH.Dispose();
}
}
}
public OGRWorkspace(OSGeo.OGR.DataSource ds, string connString)
{
m_connString = connString;
m_datasource = ds;
}