/// <summary>
/// 获取Feature的最大值和最小值 范围不准
/// </summary>
/// <param name="dsmDs"></param>
/// <param name="oriFeat"></param>
/// <param name="bufFeat"></param>
/// <param name="subRasterOff_Size"></param>
private static void getMaxMinValue(OSGeo.GDAL.Dataset dsmDs, OSGeo.OGR.Feature oriFeat, OSGeo.OGR.Feature bufFeat, int[] subRasterOff_Size)
{
//拿到当前Feature对应的栅格值（数组）
double[] rastValue = new double[subRasterOff_Size[2] * subRasterOff_Size[3]];
//把SUBimg的值读进数组
lock (dsmDs)
{
dsmDs.GetRasterBand(1).ReadRaster(
subRasterOff_Size[0],
subRasterOff_Size[1],
subRasterOff_Size[2],
subRasterOff_Size[3],
rastValue,
subRasterOff_Size[2],
subRasterOff_Size[3],
0, 0);
}
double max = rastValue.Max();
double min = rastValue.Min();
double cay = max - min;
oriFeat.SetField("TEMP", max - min);
oriFeat.SetField("MIN", 0);
oriFeat.SetField("MAX", min);
oriFeat.SetField("HIGHT", max);
}
/// <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);
}
}
public static OSGeo.OGR.Layer DS2OrgLayer(DotSpatial.Data.IFeatureSet featureSet, OSGeo.OGR.Layer layer)
{
using (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);
using (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);
}
}
}
return(layer);
}
public static void SetField(this OSGeo.OGR.Feature feature, OSGeo.OGR.FieldDefn fieldDefn, object value)
{
if (feature == null || fieldDefn == null)
{
return;
}
var fieldName = fieldDefn.GetName();
var fieldType = fieldDefn.GetFieldType();
if (!DBNull.Value.Equals(value))
{
switch (fieldType)
{
case OSGeo.OGR.FieldType.OFTString:
feature.SetField(fieldName, value.ToString());
break;
case OSGeo.OGR.FieldType.OFTInteger:
if (value is int intValue)
{
feature.SetField(fieldName, intValue);
}
break;
case OSGeo.OGR.FieldType.OFTReal:
if (value is double doubleValue)
{
feature.SetField(fieldName, doubleValue);
}
break;
default:
throw new NotImplementedException();
}
}
}
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();
}
}
}
/// <summary>
/// Creates an OGR data source from a FeatureDataTable
/// </summary>
/// <param name="table">The name of the table</param>
/// <param name="geometryType">The geometry type</param>
/// <param name="driver">The driver</param>
/// <param name="connection">The connection string</param>
/// <param name="driverOptions">The options for the driver</param>
/// <param name="layerOptions">The options for the layer</param>
public static void CreateFromFeatureDataTable(FeatureDataTable table,
OgcGeometryType geometryType, int srid, string driver, string connection, string[] driverOptions = null, string[] layerOptions = null)
{
if (table == null)
{
throw new ArgumentNullException("table");
}
if (table.Rows.Count == 0)
{
throw new ArgumentException("The table contains no rows", "table");
}
if (geometryType < OgcGeometryType.Point || geometryType > OgcGeometryType.MultiPolygon)
{
throw new ArgumentException("Invalid geometry type", "geometryType");
}
if (string.IsNullOrWhiteSpace(driver))
{
throw new ArgumentException("No driver specified", "driver");
}
var dr = OSGeo.OGR.Ogr.GetDriverByName(driver);
if (dr == null)
{
throw new Exception(string.Format("Cannot load driver '{0}'!", driver));
}
//if (!dr.TestCapability("ODrCCreateDataSource"))
// throw new Exception(string.Format("Driver '{0}' cannot create a data source!", driver));
// Create the data source
var ds = dr.CreateDataSource(connection, driverOptions);
//if (!ds.TestCapability("ODsCCreateLayer"))
// throw new Exception(string.Format("Driver '{0}' cannot create a layer!", driver));
// Create the spatial reference
var sr = new OSGeo.OSR.SpatialReference(string.Empty);
sr.ImportFromEPSG(srid);
// Create the layer
var lyr = ds.CreateLayer(table.TableName, sr, (OgrGeometryType)geometryType, layerOptions);
sr.Dispose();
//lyr.GetSpatialRef();
foreach (System.Data.DataColumn dc in table.Columns)
{
using (var fldDef = GetFieldDefinition(dc))
lyr.CreateField(fldDef, 0);
}
using (var ld = lyr.GetLayerDefn())
{
foreach (FeatureDataRow fdr in table.Rows)
{
if ((int)fdr.Geometry.OgcGeometryType != (int)geometryType)
{
continue;
}
using (var feature = new OgrFeature(ld))
{
feature.SetGeometry(OgrGeometry.CreateFromWkb(fdr.Geometry.AsBinary()));
var idx = -1;
foreach (System.Data.DataColumn dc in table.Columns)
{
idx++;
var fd = ld.GetFieldDefn(idx);
DateTime dt;
switch (fd.GetFieldType())
{
case OgrFieldType.OFTBinary:
//Nothing
break;
case OgrFieldType.OFTDate:
dt = ((DateTime)fdr[dc]).Date;
feature.SetField(idx, dt.Year, dt.Month, dt.Day, dt.Hour, dt.Minute, dt.Second, 0);
break;
case OgrFieldType.OFTDateTime:
dt = (DateTime)fdr[dc];
feature.SetField(idx, dt.Year, dt.Month, dt.Day, dt.Hour, dt.Minute, dt.Second, 0);
break;
case OgrFieldType.OFTTime:
var tod = ((DateTime)fdr[dc]).TimeOfDay;
feature.SetField(idx, 0, 0, 0, tod.Hours, tod.Minutes, tod.Seconds, 0);
break;
case OgrFieldType.OFTInteger:
feature.SetField(idx, Convert.ToInt32(fdr[dc]));
break;
case OgrFieldType.OFTIntegerList:
var il = GetIntegerList(fdr[dc], dc.DataType);
feature.SetFieldIntegerList(idx, il.Length, il);
break;
case OgrFieldType.OFTReal:
feature.SetField(idx, Convert.ToDouble(fdr[dc]));
break;
case OgrFieldType.OFTRealList:
var dl = GetDoubleList(fdr[dc], dc.DataType);
feature.SetFieldDoubleList(idx, dl.Length, dl);
break;
case OgrFieldType.OFTString:
feature.SetField(idx, Convert.ToString(fdr[dc]));
break;
case OgrFieldType.OFTStringList:
var sl = (string[])fdr[dc];
feature.SetFieldStringList(idx, sl);
break;
}
fd.Dispose();
}
lyr.CreateFeature(feature);
feature.Dispose();
}
//ld.Dispose();
}
}
lyr.Dispose();
ds.Dispose();
dr.Dispose();
}
/// <summary>
/// Creates an OGR data source from a FeatureDataTable
/// </summary>
/// <param name="table">The name of the table</param>
/// <param name="geometryType">The geometry type</param>
/// <param name="driver">The driver</param>
/// <param name="connection">The connection string</param>
/// <param name="driverOptions">The options for the driver</param>
/// <param name="layerOptions">The options for the layer</param>
public static void CreateFromFeatureDataTable(FeatureDataTable table,
OgcGeometryType geometryType, int srid, string driver, string connection, string[] driverOptions = null, string[] layerOptions = null)
{
if (table == null)
throw new ArgumentNullException("table");
if (table.Rows.Count == 0)
throw new ArgumentException("The table contains no rows", "table");
if (geometryType < OgcGeometryType.Point || geometryType > OgcGeometryType.MultiPolygon)
throw new ArgumentException("Invalid geometry type", "geometryType");
if (string.IsNullOrWhiteSpace(driver))
throw new ArgumentException("No driver specified", "driver");
var dr = OSGeo.OGR.Ogr.GetDriverByName(driver);
if (dr == null)
throw new Exception(string.Format("Cannot load driver '{0}'!", driver));
//if (!dr.TestCapability("ODrCCreateDataSource"))
// throw new Exception(string.Format("Driver '{0}' cannot create a data source!", driver));
// Create the data source
var ds = dr.CreateDataSource(connection, driverOptions);
//if (!ds.TestCapability("ODsCCreateLayer"))
// throw new Exception(string.Format("Driver '{0}' cannot create a layer!", driver));
// Create the spatial reference
var sr = new OSGeo.OSR.SpatialReference(string.Empty);
sr.ImportFromEPSG(srid);
// Create the layer
var lyr = ds.CreateLayer(table.TableName, sr, (OgrGeometryType)geometryType, layerOptions);
sr.Dispose();
//lyr.GetSpatialRef();
foreach (System.Data.DataColumn dc in table.Columns)
{
using (var fldDef = GetFieldDefinition(dc))
lyr.CreateField(fldDef, 0);
}
using (var ld = lyr.GetLayerDefn())
{
foreach (FeatureDataRow fdr in table.Rows)
{
if ((int)fdr.Geometry.OgcGeometryType != (int)geometryType)
continue;
using (var feature = new OgrFeature(ld))
{
feature.SetGeometry(OgrGeometry.CreateFromWkb(fdr.Geometry.AsBinary()));
var idx = -1;
foreach (System.Data.DataColumn dc in table.Columns)
{
idx++;
var fd = ld.GetFieldDefn(idx);
DateTime dt;
switch (fd.GetFieldType())
{
case OgrFieldType.OFTBinary:
//Nothing
break;
case OgrFieldType.OFTDate:
dt = ((DateTime)fdr[dc]).Date;
feature.SetField(idx, dt.Year, dt.Month, dt.Day, dt.Hour, dt.Minute, dt.Second, 0);
break;
case OgrFieldType.OFTDateTime:
dt = (DateTime)fdr[dc];
feature.SetField(idx, dt.Year, dt.Month, dt.Day, dt.Hour, dt.Minute, dt.Second, 0);
break;
case OgrFieldType.OFTTime:
var tod = ((DateTime)fdr[dc]).TimeOfDay;
feature.SetField(idx, 0, 0, 0, tod.Hours, tod.Minutes, tod.Seconds, 0);
break;
case OgrFieldType.OFTInteger:
feature.SetField(idx, Convert.ToInt32(fdr[dc]));
break;
case OgrFieldType.OFTIntegerList:
var il = GetIntegerList(fdr[dc], dc.DataType);
feature.SetFieldIntegerList(idx, il.Length, il);
break;
case OgrFieldType.OFTReal:
feature.SetField(idx, Convert.ToDouble(fdr[dc]));
break;
case OgrFieldType.OFTRealList:
var dl = GetDoubleList(fdr[dc], dc.DataType);
feature.SetFieldDoubleList(idx, dl.Length, dl);
break;
case OgrFieldType.OFTString:
feature.SetField(idx, Convert.ToString(fdr[dc]));
break;
case OgrFieldType.OFTStringList:
var sl = (string[])fdr[dc];
feature.SetFieldStringList(idx, sl);
break;
}
fd.Dispose();
}
lyr.CreateFeature(feature);
feature.Dispose();
}
//ld.Dispose();
}
}
lyr.Dispose();
ds.Dispose();
dr.Dispose();
}
/// <summary>
/// 以前的代码
/// </summary>
/// <param name="dsmDs"></param>
/// <param name="oriFeat"></param>
/// <param name="bufFeat"></param>
/// <param name="subRasterOff_Size"></param>
private static void getMaxMinValue_(OSGeo.GDAL.Dataset dsmDs, OSGeo.OGR.Feature oriFeat, OSGeo.OGR.Feature bufFeat, int[] subRasterOff_Size)
{
//拿到当前Feature对应的栅格值（数组）
double[] rastValue = new double[subRasterOff_Size[2] * subRasterOff_Size[3]];
//拿到全局Transfrom
double[] Transfrom = new double[6];
dsmDs.GetGeoTransform(Transfrom);
//把SUBimg的值读进数组
dsmDs.GetRasterBand(1).ReadRaster(
subRasterOff_Size[0],
subRasterOff_Size[1],
subRasterOff_Size[2],
subRasterOff_Size[3],
rastValue,
subRasterOff_Size[2],
subRasterOff_Size[3],
0, 0);
OSGeo.OGR.Geometry oriGeom = oriFeat.GetGeometryRef();
string ddd = oriFeat.GetFieldAsString("MAX");
while (oriFeat.GetFieldAsString("MAX") == "")
{
//拿到数组中最大值的索引
int maxId = Array.IndexOf(rastValue, rastValue.Max());
//通过索引拿到空间坐标
double maxX, maxY;
StaticTools.indexToGeoSpace(maxId, subRasterOff_Size, Transfrom, out maxX, out maxY);
//把空间坐标写进Geomtry
OSGeo.OGR.Geometry maxGeom = new OSGeo.OGR.Geometry(OSGeo.OGR.wkbGeometryType.wkbPoint);
maxGeom.AddPoint_2D(maxX, maxY);
//判断坐标是否在Feature中，在则把值写入对应字段，不在则把当前值改为平均值
if (maxGeom.Within(oriGeom))
{
oriFeat.SetField("MAX", rastValue.Max());
}
else
{
rastValue[maxId] = rastValue.Average();
}
}
string dd = oriFeat.GetFieldAsString("MIN");
while (oriFeat.GetFieldAsString("MIN") == "")
{
//拿到数组中最小值的索引
double ffdf = rastValue.Min();
int minId = Array.IndexOf(rastValue, rastValue.Min());
//通过索引拿到空间坐标
double minX, minY;
StaticTools.indexToGeoSpace(minId, subRasterOff_Size, Transfrom, out minX, out minY);
//把空间坐标写进Geomtry
OSGeo.OGR.Geometry minGeom = new OSGeo.OGR.Geometry(OSGeo.OGR.wkbGeometryType.wkbPoint);
minGeom.AddPoint_2D(minX, minY);
//判断坐标是否在Feature中，在则把值写入对应字段，不在则把当前值改为平均值
OSGeo.OGR.Geometry bufGeom = bufFeat.GetGeometryRef();
if (minGeom.Within(bufGeom))
{
oriFeat.SetField("MIN", rastValue.Min());
}
else
{
rastValue[minId] = rastValue.Average();
}
}
double max = oriFeat.GetFieldAsDouble("MAX");
double min = oriFeat.GetFieldAsDouble("MIN");
oriFeat.SetField("HIGHT", max - min);
}