本文整理汇总了C#中DotSpatial.Projections.ProjectionInfo.ReadEsriString方法的典型用法代码示例。如果您正苦于以下问题：C# ProjectionInfo.ReadEsriString方法的具体用法？C# ProjectionInfo.ReadEsriString怎么用？C# ProjectionInfo.ReadEsriString使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DotSpatial.Projections.ProjectionInfo的用法示例。
在下文中一共展示了ProjectionInfo.ReadEsriString方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: InitializeMapOsmWithXls
private static Map InitializeMapOsmWithXls(float angle)
{
Map map = new Map();
TileLayer tileLayer = new TileLayer(new OsmTileSource(), "TileLayer - OSM with XLS");
map.Layers.Add(tileLayer);
//Get data from excel
var xlsPath = string.Format(XlsConnectionString, System.IO.Directory.GetCurrentDirectory(), "GeoData\\Cities.xls");
var ds = new System.Data.DataSet("XLS");
using (var cn = new System.Data.OleDb.OleDbConnection(xlsPath))
{
cn.Open();
using (var da = new System.Data.OleDb.OleDbDataAdapter(new System.Data.OleDb.OleDbCommand("SELECT * FROM [Cities$]", cn)))
da.Fill(ds);
}
#if !DotSpatialProjections
//The SRS for this datasource is EPSG:4326, therefore we need to transfrom it to OSM projection
var ctf = new ProjNet.CoordinateSystems.Transformations.CoordinateTransformationFactory();
var cf = new ProjNet.CoordinateSystems.CoordinateSystemFactory();
var epsg4326 = cf.CreateFromWkt("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\",0.01745329251994328,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4326\"]]");
var epsg3785 = cf.CreateFromWkt("PROJCS[\"Popular Visualisation CRS / Mercator\", GEOGCS[\"Popular Visualisation CRS\", DATUM[\"Popular Visualisation Datum\", SPHEROID[\"Popular Visualisation Sphere\", 6378137, 0, AUTHORITY[\"EPSG\",\"7059\"]], TOWGS84[0, 0, 0, 0, 0, 0, 0], AUTHORITY[\"EPSG\",\"6055\"]],PRIMEM[\"Greenwich\", 0, AUTHORITY[\"EPSG\", \"8901\"]], UNIT[\"degree\", 0.0174532925199433, AUTHORITY[\"EPSG\", \"9102\"]], AXIS[\"E\", EAST], AXIS[\"N\", NORTH], AUTHORITY[\"EPSG\",\"4055\"]], PROJECTION[\"Mercator\"], PARAMETER[\"False_Easting\", 0], PARAMETER[\"False_Northing\", 0], PARAMETER[\"Central_Meridian\", 0], PARAMETER[\"Latitude_of_origin\", 0], UNIT[\"metre\", 1, AUTHORITY[\"EPSG\", \"9001\"]], AXIS[\"East\", EAST], AXIS[\"North\", NORTH], AUTHORITY[\"EPSG\",\"3785\"]]");
var ct = ctf.CreateFromCoordinateSystems(epsg4326, epsg3785);
foreach (System.Data.DataRow row in ds.Tables[0].Rows)
{
if (row["X"] == DBNull.Value || row["Y"] == DBNull.Value) continue;
double[] coords = new double[] { Convert.ToDouble(row["X"]), Convert.ToDouble(row["Y"])};
coords = ct.MathTransform.Transform(coords);
row["X"] = coords[0];
row["Y"] = coords[1];
}
#else
var epsg4326 = DotSpatial.Projections.KnownCoordinateSystems.Geographic.World.WGS1984;
var epsg3785 = new DotSpatial.Projections.ProjectionInfo();
epsg3785.ReadEsriString("PROJCS[\"Popular Visualisation CRS / Mercator\", GEOGCS[\"Popular Visualisation CRS\", DATUM[\"Popular Visualisation Datum\", SPHEROID[\"Popular Visualisation Sphere\", 6378137, 0, AUTHORITY[\"EPSG\",\"7059\"]], TOWGS84[0, 0, 0, 0, 0, 0, 0], AUTHORITY[\"EPSG\",\"6055\"]],PRIMEM[\"Greenwich\", 0, AUTHORITY[\"EPSG\", \"8901\"]], UNIT[\"degree\", 0.0174532925199433, AUTHORITY[\"EPSG\", \"9102\"]], AXIS[\"E\", EAST], AXIS[\"N\", NORTH], AUTHORITY[\"EPSG\",\"4055\"]], PROJECTION[\"Mercator\"], PARAMETER[\"False_Easting\", 0], PARAMETER[\"False_Northing\", 0], PARAMETER[\"Central_Meridian\", 0], PARAMETER[\"Latitude_of_origin\", 0], UNIT[\"metre\", 1, AUTHORITY[\"EPSG\", \"9001\"]], AXIS[\"East\", EAST], AXIS[\"North\", NORTH], AUTHORITY[\"EPSG\",\"3785\"]]");
foreach (System.Data.DataRow row in ds.Tables[0].Rows)
{
if (row["X"] == DBNull.Value || row["Y"] == DBNull.Value) continue;
double[] coords = new double[] { Convert.ToDouble(row["X"]), Convert.ToDouble(row["Y"])};
DotSpatial.Projections.Reproject.ReprojectPoints(coords, null, epsg4326, epsg3785, 0, 1);
row["X"] = coords[0];
row["Y"] = coords[1];
}
#endif
//Add Rotation Column
ds.Tables[0].Columns.Add("Rotation", typeof (float));
foreach (System.Data.DataRow row in ds.Tables[0].Rows)
row["Rotation"] = -angle;
//Set up provider
var xlsProvider = new SharpMap.Data.Providers.DataTablePoint(ds.Tables[0], "OID", "X", "Y");
var xlsLayer = new SharpMap.Layers.VectorLayer("XLS", xlsProvider);
xlsLayer.Style.Symbol = SharpMap.Styles.VectorStyle.DefaultSymbol;
//Add layer to map
map.Layers.Add(xlsLayer);
var xlsLabelLayer = new SharpMap.Layers.LabelLayer("XLSLabel");
xlsLabelLayer.DataSource = xlsProvider;
xlsLabelLayer.LabelColumn = "Name";
xlsLabelLayer.PriorityColumn = "Population";
xlsLabelLayer.Style.CollisionBuffer = new System.Drawing.SizeF(2f, 2f);
xlsLabelLayer.Style.CollisionDetection = true;
xlsLabelLayer.LabelFilter = SharpMap.Rendering.LabelCollisionDetection.ThoroughCollisionDetection;
map.Layers.Add(xlsLabelLayer);
map.ZoomToBox(tileLayer.Envelope);
return map;
}示例2: GetTransform
// gets transform between raster's native projection and the map projection
private void GetTransform(ProjectionInfo mapProjection)
{
if (mapProjection == null || _projectionWkt == "")
{
_transform = null;
return;
}
// get our two projections
ProjectionInfo srcCoord = new ProjectionInfo();
srcCoord.ReadEsriString(_projectionWkt);
ProjectionInfo tgtCoord = mapProjection;
// raster and map are in same projection, no need to transform
if (srcCoord.Matches(tgtCoord))
{
_transform = null;
return;
}
// create transform
_transform = new CoordinateTransformation {Source = srcCoord, Target = tgtCoord};
}示例3: GetCoordinateTransformation
private static DotSpatial.Projections.ICoordinateTransformation GetCoordinateTransformation()
{
var epsg4326 = DotSpatial.Projections.KnownCoordinateSystems.Geographic.World.WGS1984;
var epsg3785 = new DotSpatial.Projections.ProjectionInfo();
epsg3785.ReadEsriString("PROJCS[\"Popular Visualisation CRS / Mercator\", GEOGCS[\"Popular Visualisation CRS\", DATUM[\"Popular Visualisation Datum\", SPHEROID[\"Popular Visualisation Sphere\", 6378137, 0, AUTHORITY[\"EPSG\",\"7059\"]], TOWGS84[0, 0, 0, 0, 0, 0, 0], AUTHORITY[\"EPSG\",\"6055\"]],PRIMEM[\"Greenwich\", 0, AUTHORITY[\"EPSG\", \"8901\"]], UNIT[\"degree\", 0.0174532925199433, AUTHORITY[\"EPSG\", \"9102\"]], AXIS[\"E\", EAST], AXIS[\"N\", NORTH], AUTHORITY[\"EPSG\",\"4055\"]], PROJECTION[\"Mercator\"], PARAMETER[\"False_Easting\", 0], PARAMETER[\"False_Northing\", 0], PARAMETER[\"Central_Meridian\", 0], PARAMETER[\"Latitude_of_origin\", 0], UNIT[\"metre\", 1, AUTHORITY[\"EPSG\", \"9001\"]], AXIS[\"East\", EAST], AXIS[\"North\", NORTH], AUTHORITY[\"EPSG\",\"3785\"]]");
return new DotSpatial.Projections.CoordinateTransformation() {Source = epsg4326, Target = epsg3785};
#endif
}示例4: GetProjection
// get raster projection
public ProjectionInfo GetProjection()
{
if (!String.IsNullOrEmpty(_projectionWkt))
{
ProjectionInfo p = new ProjectionInfo();
p.ReadEsriString(_projectionWkt);
return p;
}
return null;
}