This projection class uses the Proj4 engine to project data from one Srid to another.

• System.Object
  • ThinkGeo.MapSuite.Core.Projection
    • ThinkGeo.MapSuite.Core.ManagedProj4Projection

ManagedProj4Projection()

This is the default constructor for this class.

This conctructor pass nothing. After this cconstructor , you should set the InternalProjectionParametersString property and ExternalProjectionParametersString property before open to use.

ManagedProj4Projection(String,String)

This is a constructor for the class.

This constructor allows you to pass in Proj4 text parameters for the to and from projection. The parameters typically look like “+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs” You should use this constructor when you know the parameters. If you know the SRID directly you can use the other constructor that takes the SRID.

• internalProjectionParameters
  • Type:String
  • Description:N/A

• externalProjectionParameters
  • Type:String
  • Description:N/A

CloneDeep()

N/A

N/A

• Type:Projection
• Description:N/A

Open()

N/A

N/A

• Type:Void
• Description:N/A

ConvertToExternalProjection(GeoImage,RectangleShape)

N/A

N/A

• Type:RasterProjectionResult
• Description:N/A

• image
  • Type:GeoImage
  • Description:N/A

• imageExtent
  • Type:RectangleShape
  • Description:N/A

ConvertToExternalProjection(GeoImage,RectangleShape,RectangleShape)

N/A

N/A

• Type:RasterProjectionResult
• Description:N/A

• image
  • Type:GeoImage
  • Description:N/A

• imageExtent
  • Type:RectangleShape
  • Description:N/A

• targetExtent
  • Type:RectangleShape
  • Description:N/A

Close()

N/A

N/A

• Type:Void
• Description:N/A

ConvertToExternalProjection(Double,Double)

N/A

N/A

• Type:Vertex
• Description:N/A

• x
  • Type:Double
  • Description:N/A

• y
  • Type:Double
  • Description:N/A

ConvertToExternalProjection(BaseShape)

N/A

N/A

• Type:BaseShape
• Description:N/A

• baseShape
  • Type:BaseShape
  • Description:N/A

ConvertToExternalProjection(Feature)

N/A

N/A

• Type:Feature
• Description:N/A

• feature
  • Type:Feature
  • Description:N/A

ConvertToExternalProjection(RectangleShape)

N/A

N/A

• Type:RectangleShape
• Description:N/A

• rectangleShape
  • Type:RectangleShape
  • Description:N/A

ConvertToInternalProjection(Double,Double)

N/A

N/A

• Type:Vertex
• Description:N/A

• x
  • Type:Double
  • Description:N/A

• y
  • Type:Double
  • Description:N/A

ConvertToInternalProjection(BaseShape)

N/A

N/A

• Type:BaseShape
• Description:N/A

• baseShape
  • Type:BaseShape
  • Description:N/A

ConvertToInternalProjection(Feature)

N/A

N/A

• Type:Feature
• Description:N/A

• feature
  • Type:Feature
  • Description:N/A

ConvertToInternalProjection(RectangleShape)

N/A

N/A

• Type:RectangleShape
• Description:N/A

• rectangleShape
  • Type:RectangleShape
  • Description:N/A

GetInternalGeographyUnit()

N/A

N/A

• Type:GeographyUnit
• Description:N/A

GetExternalGeographyUnit()

N/A

N/A

• Type:GeographyUnit
• Description:N/A

ToString()

N/A

N/A

• Type:String
• Description:N/A

Equals(Object)

N/A

N/A

• Type:Boolean
• Description:N/A

• obj
  • Type:Object
  • Description:N/A

GetHashCode()

N/A

N/A

• Type:Int32
• Description:N/A

GetType()

N/A

N/A

• Type:Type
• Description:N/A

GetEpsgParametersString(Int32)

This method is a static API to get a projection text from EPSG(European Petroleum Survey Group).

More information about it can reference to EPSG.rtf in the documentation.

• Type:String
• Description:The project text corresponding to the srid.

• srid
  • Type:Int32
  • Description:The target Srid infromation to get the projection text from.

GetWgs84ParametersString()

This method is a static API to get a projection text from WGS84.

More information about it can reference to EPSG.rtf in the documentation.

• Type:String
• Description:The project text corresponding to the srid.

GetLatLongParametersString()

N/A

N/A

• Type:String
• Description:N/A

GetDecimalDegreesParametersString()

N/A

N/A

• Type:String
• Description:N/A

GetEsriParametersString(Int32)

This method is a static API to get a projection text from ERSI.

More information about it can reference to ERSI.rtf in the documentation.

• Type:String
• Description:The project text corresponding to the srid.

• srid
  • Type:Int32
  • Description:The target Srid infromation to get the projection text from.

GetGoogleMapParametersString()

This method is a static API to get a projection used by GoogleMap.

N/A

• Type:String
• Description:A text for a projection used by GoogleMap , it should like this “+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”

GetBingMapParametersString()

This method is a static API to get a projection used by BingMaps.

N/A

• Type:String
• Description:A text for a projection used by BingMaps , it should like this “+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”

GetSphericalMercatorParametersString()

This method is a static API to get a projection of SphericalMercator.

N/A

• Type:String
• Description:A text for a SphericalMercator projection, it should like this “+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”

ConvertEpsgToPrj(Int32)

This method is a static API to get a Prj string by Epsg number

N/A

• Type:String
• Description:N/A

• srid
  • Type:Int32
  • Description:Epsg number that reprents this projection

ConvertProj4ToPrj(String)

N/A

N/A

• Type:String
• Description:N/A

• proj4String
  • Type:String
  • Description:N/A

ConvertPrjToProj4(String)

N/A

N/A

• Type:String
• Description:N/A

• prjString
  • Type:String
  • Description:N/A

OpenCore()

This method open the projection and gets it ready to use.

As this is the core version of the Open method it is intended to be overridden in inherited version of the class. When overriding you will be responsible for getting the projection classes state ready for doing projections. In this override we call the Proj4 methods get it ready for projection.

• Type:Void
• Description:None

ConvertToExternalProjectionCore(Double[],Double[])

This method returns a projected vertex based on the coordinates passed in.

This method returns a projected vertex based on the coordinates passed in. You will need to override this method for the Projection class. Typically you can call the projection utility library that has interfaces for dozens of different types of projections.

• Type:Vertex[]
• Description:This method returns a projected vertices based on the coordinates passed in.

• x
  • Type:Double[]
  • Description:This parameter is the X values of the points that will be projected.

• y
  • Type:Double[]
  • Description:This parameter is the Y values of the points that will be projected.

ConvertToInternalProjectionCore(Double[],Double[])

This method returns a de-projected vertex based on the coordinates passed in.

This method returns a de-projected vertex based on the coordinates passed in. You will need to override this method for the Projection class. Typically you can call the projection utility library that has interfaces for dozens of different types of projections. The de-projection is important because inside of the FeatureSource you will in many cases to to and from various projections.

• Type:Vertex[]
• Description:This method returns a de-projected vertices based on the coordinates passed in.

• x
  • Type:Double[]
  • Description:This parameter is the X values of the points that will be de-projected.

• y
  • Type:Double[]
  • Description:This parameter is the Y values of the points that will be de-projected.

GetInternalGeographyUnitCore()

N/A

N/A

• Type:GeographyUnit
• Description:N/A

GetExternalGeographyUnitCore()

N/A

N/A

• Type:GeographyUnit
• Description:N/A

CloneDeepCore()

N/A

N/A

• Type:Projection
• Description:N/A

ConvertToExternalProjectionCore(GeoImage,RectangleShape)

N/A

N/A

• Type:RasterProjectionResult
• Description:N/A

• image
  • Type:GeoImage
  • Description:N/A

• imageExtent
  • Type:RectangleShape
  • Description:N/A

ConvertToExternalProjectionCore(GeoImage,RectangleShape,RectangleShape)

N/A

N/A

• Type:RasterProjectionResult
• Description:N/A

• image
  • Type:GeoImage
  • Description:N/A

• imageExtent
  • Type:RectangleShape
  • Description:N/A

• targetExtent
  • Type:RectangleShape
  • Description:N/A

CloseCore()

N/A

N/A

• Type:Void
• Description:N/A

Xhs=(Feature)

N/A

N/A

• Type:Void
• Description:N/A

• Xxs=
  • Type:Feature
  • Description:N/A

Yxs=(Feature)

N/A

N/A

• Type:Void
• Description:N/A

• ZBs=
  • Type:Feature
  • Description:N/A

Finalize()

N/A

N/A

• Type:Void
• Description:N/A

MemberwiseClone()

N/A

N/A

• Type:Object
• Description:N/A

DecimalDegreeBoundary

This property specifies the Boundary for decimaldegree values.

The default boundary is(-179.9, 89.9, 179.9, -89.9). That means when I want to project a PointShape(-179,91,89.91) out, in fact what it projects is (-179.9,89.9) because of its out of boundary.

• Type:RectangleShape

InternalProjectionParametersString

Gets or sets the Proj4 text parameter for the from projection. This parameter typically look like “+Proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs”.

N/A

• Type:String

ExternalProjectionParametersString

Gets or sets the Proj4 text parameter for the to projection. This parameter typically look like “+proj=utm +zone=33 +ellps=WGS84 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs”.

N/A

• Type:String

IsOpen

N/A

N/A

• Type:Boolean

CanConvertRasterToExternalProjection

N/A

N/A

• Type:Boolean

CanReproject

This property indicates whether this projection should be used.

N/A

• Type:Boolean