ogr

package
v0.0.5 Latest Latest
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 Go to latest Published: Jan 21, 2021 License: MIT Imports: 5 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	FT_Integer       = FieldType(C.OFTInteger)
	FT_IntegerList   = FieldType(C.OFTIntegerList)
	FT_Real          = FieldType(C.OFTReal)
	FT_RealList      = FieldType(C.OFTRealList)
	FT_String        = FieldType(C.OFTString)
	FT_StringList    = FieldType(C.OFTStringList)
	FT_Binary        = FieldType(C.OFTBinary)
	FT_Date          = FieldType(C.OFTDate)
	FT_Time          = FieldType(C.OFTTime)
	FT_DateTime      = FieldType(C.OFTDateTime)
	FT_Integer64     = FieldType(C.OFTInteger64)
	FT_Integer64List = FieldType(C.OFTInteger64List)
)
View Source 
const (
	J_Undefined = Justification(C.OJUndefined)
	J_Left      = Justification(C.OJLeft)
	J_Right     = Justification(C.OJRight)
)
View Source 
const (
	GT_Null                  = 4294967295
	GT_Unknown               = GeometryType(C.wkbUnknown)
	GT_Point                 = GeometryType(C.wkbPoint)
	GT_LineString            = GeometryType(C.wkbLineString)
	GT_Polygon               = GeometryType(C.wkbPolygon)
	GT_MultiPoint            = GeometryType(C.wkbMultiPoint)
	GT_MultiLineString       = GeometryType(C.wkbMultiLineString)
	GT_MultiPolygon          = GeometryType(C.wkbMultiPolygon)
	GT_GeometryCollection    = GeometryType(C.wkbGeometryCollection)
	GT_None                  = GeometryType(C.wkbNone)
	GT_LinearRing            = GeometryType(C.wkbLinearRing)
	GT_Point25D              = GeometryType(C.wkbPoint25D)
	GT_LineString25D         = GeometryType(C.wkbLineString25D)
	GT_Polygon25D            = GeometryType(C.wkbPolygon25D)
	GT_MultiPoint25D         = GeometryType(C.wkbMultiPoint25D)
	GT_MultiLineString25D    = GeometryType(C.wkbMultiLineString25D)
	GT_MultiPolygon25D       = GeometryType(C.wkbMultiPolygon25D)
	GT_GeometryCollection25D = GeometryType(C.wkbGeometryCollection25D)
)
View Source 
const (
	OAMS_TRADITIONAL_GIS_ORDER = AxisMappingStrategy(C.OAMS_TRADITIONAL_GIS_ORDER)
	OAMS_AUTHORITY_COMPLIANT   = AxisMappingStrategy(C.OAMS_AUTHORITY_COMPLIANT)
	OAMS_CUSTOM                = AxisMappingStrategy(C.OAMS_CUSTOM)
)

Variables

View Source 
var (
	ErrDebug                   = errors.New("Debug Error")
	ErrNotEnoughData           = errors.New("Not Enough Data Error")
	ErrNotEnoughMemory         = errors.New("Not Enough Memory Error")
	ErrUnsupportedGeometryType = errors.New("Unsupported Geometry Type Error")
	ErrUnsupportedOperation    = errors.New("Unsupported Operation Error")
	ErrCorruptData             = errors.New("Corrupt Data Error")
	ErrFailure                 = errors.New("OGR Failure Error")
	ErrUnsupportedSRS          = errors.New("Unsupported SRS Error")
	ErrInvalidHandle           = errors.New("Invalid Handle Error")
	ErrNonExistingFeature      = errors.New("Non Existing Feature Error")
	ErrUndefined               = errors.New("Undefined Error")
)

Functions

func BoolToCInt 

func BoolToCInt(in bool) (out C.int)

Convert a go bool to a C int

func CleanupOGR 

func CleanupOGR()

Clean up all OGR related resources

func CleanupSR 

func CleanupSR()

Cleanup cached SRS related memory

func IntSliceToCInt 

func IntSliceToCInt(data []int) []C.int

func OGRDriverCount 

func OGRDriverCount() int

Fetch the number of registered drivers

func OpenDataSourceCount 

func OpenDataSourceCount() int

Return the number of opened data sources

Types

type AxisMappingStrategy 

type AxisMappingStrategy uint32

type CoordinateTransform 

type CoordinateTransform struct {
	// contains filtered or unexported fields
}

func CreateCoordinateTransform 

func CreateCoordinateTransform(
	source SpatialReference,
	dest SpatialReference,
) CoordinateTransform

Create a new CoordinateTransform

func (CoordinateTransform) Destroy 

func (ct CoordinateTransform) Destroy()

Destroy CoordinateTransform

func (CoordinateTransform) Transform 

func (ct CoordinateTransform) Transform(numPoints int, xPoints []float64, yPoints []float64, zPoints []float64) bool

type DataSource 

type DataSource struct {
	// contains filtered or unexported fields
}

func OpenDataSource 

func OpenDataSource(name string, update int) (DataSource, bool)

Open a file / data source with one of the registered drivers

func OpenDataSourceByIndex 

func OpenDataSourceByIndex(index int) DataSource

Return the i'th datasource opened

func OpenSharedDataSource 

func OpenSharedDataSource(name string, update int) (DataSource, bool)

Open a shared file / data source with one of the registered drivers

func (DataSource) CopyLayer 

func (ds DataSource) CopyLayer(
	source Layer,
	name string,
	options []string,
) Layer

Duplicate an existing layer

func (DataSource) CreateLayer 

func (ds DataSource) CreateLayer(
	name string,
	sr SpatialReference,
	geomType GeometryType,
	options []string,
) Layer

Create a new layer on the data source

func (DataSource) Delete 

func (ds DataSource) Delete(index int) error

Delete the layer from the data source

func (DataSource) Destroy 

func (ds DataSource) Destroy()

Closes datasource and releases resources

func (DataSource) Driver 

func (ds DataSource) Driver() OGRDriver

Fetch the driver that the data source was opened with

func (DataSource) ExecuteSQL 

func (ds DataSource) ExecuteSQL(sql string, filter Geometry, dialect string) Layer

Execute an SQL statement against the data source

func (DataSource) LayerByIndex 

func (ds DataSource) LayerByIndex(index int) Layer

Fetch a layer of this data source by index

func (DataSource) LayerByName 

func (ds DataSource) LayerByName(name string) Layer

Fetch a layer of this data source by name

func (DataSource) LayerCount 

func (ds DataSource) LayerCount() int

Fetch the number of layers in this data source

func (DataSource) Name 

func (ds DataSource) Name() string

Fetch the name of the data source

func (DataSource) Release 

func (ds DataSource) Release() error

Drop a reference to this datasource and destroy if reference is zero

func (DataSource) ReleaseResultSet 

func (ds DataSource) ReleaseResultSet(layer Layer)

Release the results of ExecuteSQL

func (DataSource) Sync 

func (ds DataSource) Sync() error

Flush pending changes to the data source

func (DataSource) TestCapability 

func (ds DataSource) TestCapability(capability string) bool

Test if the data source has the indicated capability

type Envelope 

type Envelope struct {
	// contains filtered or unexported fields
}

func (Envelope) Contains 

func (env Envelope) Contains(other Envelope) bool

Test if one envelope completely contains another

func (Envelope) Intersect 

func (env Envelope) Intersect(other Envelope) Envelope

Return the intersection of this envelope with another

func (Envelope) Intersects 

func (env Envelope) Intersects(other Envelope) bool

Test if one envelope intersects another

func (Envelope) IsInit 

func (env Envelope) IsInit() bool

func (Envelope) MaxX 

func (env Envelope) MaxX() float64

func (Envelope) MaxY 

func (env Envelope) MaxY() float64

func (Envelope) MinX 

func (env Envelope) MinX() float64

func (Envelope) MinY 

func (env Envelope) MinY() float64

func (*Envelope) SetMaxX 

func (env *Envelope) SetMaxX(val float64)

func (*Envelope) SetMaxY 

func (env *Envelope) SetMaxY(val float64)

func (*Envelope) SetMinX 

func (env *Envelope) SetMinX(val float64)

func (*Envelope) SetMinY 

func (env *Envelope) SetMinY(val float64)

func (Envelope) Union 

func (env Envelope) Union(other Envelope) Envelope

Return the union of this envelope with another one

type Feature 

type Feature struct {
	// contains filtered or unexported fields
}

func (Feature) Clone 

func (feature Feature) Clone() Feature

Duplicate feature

func (Feature) Definition 

func (feature Feature) Definition() FeatureDefinition

Fetch feature definition

func (Feature) Destroy 

func (feature Feature) Destroy()

Destroy this feature

func (Feature) Equal 

func (f1 Feature) Equal(f2 Feature) bool

Test if two features are the same

func (Feature) FID 

func (feature Feature) FID() int64

Fetch feature indentifier

func (Feature) FieldAsBinary 

func (feature Feature) FieldAsBinary(index int) []uint8

Fetch field as binary data

func (Feature) FieldAsDateTime 

func (feature Feature) FieldAsDateTime(index int) (time.Time, bool)

Fetch field as date and time

func (Feature) FieldAsFloat64 

func (feature Feature) FieldAsFloat64(index int) float64

Fetch field value as float64

func (Feature) FieldAsFloat64List 

func (feature Feature) FieldAsFloat64List(index int) []float64

Fetch field as list of float64

func (Feature) FieldAsInteger 

func (feature Feature) FieldAsInteger(index int) int

Fetch field value as integer

func (Feature) FieldAsInteger64 

func (feature Feature) FieldAsInteger64(index int) int64

Fetch field value as 64-bit integer

func (Feature) FieldAsInteger64List 

func (feature Feature) FieldAsInteger64List(index int) []int64

Fetch field as list of 64-bit integers

func (Feature) FieldAsIntegerList 

func (feature Feature) FieldAsIntegerList(index int) []int

Fetch field as list of integers

func (Feature) FieldAsString 

func (feature Feature) FieldAsString(index int) string

Fetch field value as string

func (Feature) FieldAsStringList 

func (feature Feature) FieldAsStringList(index int) []string

Fetch field as list of strings

func (Feature) FieldCount 

func (feature Feature) FieldCount() int

Fetch number of fields on this feature

func (Feature) FieldDefinition 

func (feature Feature) FieldDefinition(index int) FieldDefinition

Fetch definition for the indicated field

func (Feature) FieldIndex 

func (feature Feature) FieldIndex(name string) int

Fetch the field index for the given field name

func (Feature) FillUnsetWithDefault 

func (feature Feature) FillUnsetWithDefault(notNullableOnly bool)

Fill unset fields with default values that might be defined. note: papszOptions: unused currently. Must be set to NULL.

func (Feature) Geometry 

func (feature Feature) Geometry() Geometry

Fetch geometry of this feature

func (Feature) GeometryField 

func (feature Feature) GeometryField(index int) Geometry

Fetch a handle to feature geometry.

func (Feature) GeometryFieldCount 

func (feature Feature) GeometryFieldCount() int

Fetch number of geometry fields on this feature This will always be the same as the geometry field count for the OGRFeatureDefn.

func (Feature) GeometryFieldDefition 

func (feature Feature) GeometryFieldDefition(index int) GeomFieldDefinition

Fetch definition for this geometry field. index: the field to fetch, from 0 to GetGeomFieldCount()-1.

func (Feature) GeometryFieldIndex 

func (feature Feature) GeometryFieldIndex(name string) int

Fetch the geometry field index given geometry field name.

func (Feature) IsFieldNull 

func (feature Feature) IsFieldNull(index int) bool

Test if a field is null.

func (Feature) IsFieldSet 

func (feature Feature) IsFieldSet(index int) bool

Return if a field has ever been assigned a value

func (Feature) IsFieldSetAndNotNull 

func (feature Feature) IsFieldSetAndNotNull(index int) bool

Test if a field is set and not null.

func (Feature) IsNull 

func (feature Feature) IsNull() bool

Returns true if this contains a null pointer

func (Feature) NativeData 

func (feature Feature) NativeData() string

Returns the native data for the feature.

func (Feature) NativeMediaType 

func (feature Feature) NativeMediaType() string

func (Feature) RawField 

func (feature Feature) RawField(index int) Field

Fetch a reference to the internal field value

func (Feature) SetFID 

func (feature Feature) SetFID(fid int64) error

Set feature identifier

func (Feature) SetFieldDateTime 

func (feature Feature) SetFieldDateTime(index int, dt time.Time)

Set field as date / time

func (Feature) SetFieldDateTimeEx 

func (feature Feature) SetFieldDateTimeEx(index int, dt time.Time)

Set field as date / time

func (Feature) SetFieldFloat64 

func (feature Feature) SetFieldFloat64(index int, value float64)

Set field to float64 value

func (Feature) SetFieldFloat64List 

func (feature Feature) SetFieldFloat64List(index int, value []float64)

Set field to list of float64

func (Feature) SetFieldInteger 

func (feature Feature) SetFieldInteger(index, value int)

Set field to integer value

func (Feature) SetFieldInteger64 

func (feature Feature) SetFieldInteger64(index int, value int64)

Set field to 64-bit integer value

func (Feature) SetFieldInteger64List 

func (feature Feature) SetFieldInteger64List(index int, value []int64)

Set field to list of 64-bit integers

func (Feature) SetFieldIntegerList 

func (feature Feature) SetFieldIntegerList(index int, value []int)

Set field to list of integers

func (Feature) SetFieldNull 

func (feature Feature) SetFieldNull(index int)

Clear a field, marking it as null.

func (Feature) SetFieldRaw 

func (feature Feature) SetFieldRaw(index int, field Field)

Set field from the raw field pointer

func (Feature) SetFieldString 

func (feature Feature) SetFieldString(index int, value string)

Set field to string value

func (Feature) SetFieldStringList 

func (feature Feature) SetFieldStringList(index int, value []string)

Set field to list of strings

func (Feature) SetFrom 

func (this Feature) SetFrom(other Feature, forgiving int) error

Set one feature from another

func (Feature) SetFromWithMap 

func (this Feature) SetFromWithMap(other Feature, forgiving int, fieldMap []int) error

Set one feature from another, using field map

func (Feature) SetGeometry 

func (feature Feature) SetGeometry(geom Geometry) error

Set feature geometry

func (Feature) SetGeometryDirectly 

func (feature Feature) SetGeometryDirectly(geom Geometry) error

Set feature geometry, passing ownership to the feature

func (Feature) SetGeometryField 

func (feature Feature) SetGeometryField(index int, geom Geometry) error

Set feature geometry of a specified geometry field. This function updates the features geometry, and operate exactly as SetGeometryDirectly(), 

except that this function does not assume ownership of the passed geometry, but instead makes a copy of it.

func (Feature) SetGeometryFieldDirectly 

func (feature Feature) SetGeometryFieldDirectly(index int, geom Geometry) error

Set feature geometry of a specified geometry field. This function updates the features geometry, and operate exactly as SetGeomField(), 

except that this function assumes ownership of the passed geometry (even in case of failure of that function).

func (Feature) SetNativeData 

func (feature Feature) SetNativeData(nativeData string)

func (Feature) SetNativeMediaType 

func (feature Feature) SetNativeMediaType(mediatype string)

func (Feature) SetStyleString 

func (feature Feature) SetStyleString(style string)

Set style string for this feature

func (Feature) StealGeometry 

func (feature Feature) StealGeometry() Geometry

Fetch geometry of this feature and assume ownership

func (Feature) StlyeString 

func (feature Feature) StlyeString() string

Fetch style string for this feature

func (Feature) UnnsetField 

func (feature Feature) UnnsetField(index int)

Clear a field and mark it as unset

func (Feature) Validate 

func (feature Feature) Validate(validateFlags int, emitError int) int

type FeatureDefinition 

type FeatureDefinition struct {
	// contains filtered or unexported fields
}

func CreateFeatureDefinition 

func CreateFeatureDefinition(name string) FeatureDefinition

Create a new feature definition object

func (FeatureDefinition) AddFieldDefinition 

func (fd FeatureDefinition) AddFieldDefinition(fieldDefn FieldDefinition)

Add a new field definition to this feature definition

func (FeatureDefinition) AddGeomFieldDefinition 

func (fd FeatureDefinition) AddGeomFieldDefinition(gdf GeomFieldDefinition)

Add a new field definition to the passed feature definition.

func (FeatureDefinition) Create 

func (fd FeatureDefinition) Create() Feature

Create a feature from this feature definition

func (FeatureDefinition) DeleteFieldDefinition 

func (fd FeatureDefinition) DeleteFieldDefinition(index int) error

Delete a field definition from this feature definition

func (FeatureDefinition) DeleteGeomFieldDefinition 

func (fd FeatureDefinition) DeleteGeomFieldDefinition(index int) error

Delete an existing geometry field definition.

func (FeatureDefinition) Dereference 

func (fd FeatureDefinition) Dereference() int

Decrement the reference count by one

func (FeatureDefinition) Destroy 

func (fd FeatureDefinition) Destroy()

Destroy a feature definition object

func (FeatureDefinition) FieldCount 

func (fd FeatureDefinition) FieldCount() int

Fetch the number of fields in the feature definition

func (FeatureDefinition) FieldDefinition 

func (fd FeatureDefinition) FieldDefinition(index int) FieldDefinition

Fetch the definition of the indicated field

func (FeatureDefinition) FieldIndex 

func (fd FeatureDefinition) FieldIndex(name string) int

Fetch the index of the named field

func (FeatureDefinition) GeomFieldCount 

func (fd FeatureDefinition) GeomFieldCount() int

Fetch number of geometry fields on the passed feature definition.

func (FeatureDefinition) GeomFieldIndex 

func (fd FeatureDefinition) GeomFieldIndex(name string) int

Find geometry field by name.

func (FeatureDefinition) GeometryType 

func (fd FeatureDefinition) GeometryType() GeometryType

Fetch the geometry base type of this feature definition

func (FeatureDefinition) GetGeomFieldDefinition 

func (fd FeatureDefinition) GetGeomFieldDefinition(index int) GeomFieldDefinition

Fetch geometry field definition of the passed feature definition.

func (FeatureDefinition) IsGeometryIgnored 

func (fd FeatureDefinition) IsGeometryIgnored() bool

Fetch if the geometry can be ignored when fetching features

func (FeatureDefinition) IsSame 

func (fd FeatureDefinition) IsSame(fd2 FeatureDefinition) bool

Test if the feature definition is identical to the other one.

func (FeatureDefinition) IsStyleIgnored 

func (fd FeatureDefinition) IsStyleIgnored() bool

Fetch if the style can be ignored when fetching features

func (FeatureDefinition) Name 

func (fd FeatureDefinition) Name() string

Fetch the name of this feature definition

func (FeatureDefinition) Reference 

func (fd FeatureDefinition) Reference() int

Increment the reference count by one

func (FeatureDefinition) ReferenceCount 

func (fd FeatureDefinition) ReferenceCount() int

Fetch the current reference count

func (FeatureDefinition) Release 

func (fd FeatureDefinition) Release()

Drop a reference, and delete object if no references remain

func (FeatureDefinition) ReorderFieldDefinitions 

func (fd FeatureDefinition) ReorderFieldDefinitions(panmap []int) error

OGRErrOGR_FD_ReorderFieldDefns(OGRFeatureDefnHhDefn, int *panMap)

func (FeatureDefinition) SetGeometryIgnored 

func (fd FeatureDefinition) SetGeometryIgnored(val bool)

Set whether the geometry can be ignored when fetching features

func (FeatureDefinition) SetGeometryType 

func (fd FeatureDefinition) SetGeometryType(geomType GeometryType)

Set the geometry base type for this feature definition

func (FeatureDefinition) SetStyleIgnored 

func (fd FeatureDefinition) SetStyleIgnored(val bool)

Set whether the style can be ignored when fetching features

type Field 

type Field struct {
	// contains filtered or unexported fields
}

type FieldDefinition 

type FieldDefinition struct {
	// contains filtered or unexported fields
}

func CreateFieldDefinition 

func CreateFieldDefinition(name string, fieldType FieldType) FieldDefinition

Create a new field definition

func (FieldDefinition) Destroy 

func (fd FieldDefinition) Destroy()

Destroy the field definition

func (FieldDefinition) IsIgnored 

func (fd FieldDefinition) IsIgnored() bool

Fetch whether this field should be ignored when fetching features

func (FieldDefinition) Justification 

func (fd FieldDefinition) Justification() Justification

Fetch the justification for this field

func (FieldDefinition) Name 

func (fd FieldDefinition) Name() string

Fetch the name of the field

func (FieldDefinition) Precision 

func (fd FieldDefinition) Precision() int

Fetch the precision for this field

func (FieldDefinition) Set 

func (fd FieldDefinition) Set(
	name string,
	fType FieldType,
	width, precision int,
	justify Justification,
)

Set defining parameters of field in a single call

func (FieldDefinition) SetIgnored 

func (fd FieldDefinition) SetIgnored(ignore bool)

Set whether this field should be ignored when fetching features

func (FieldDefinition) SetJustification 

func (fd FieldDefinition) SetJustification(justify Justification)

Set the justification for this field

func (FieldDefinition) SetName 

func (fd FieldDefinition) SetName(name string)

Set the name of the field

func (FieldDefinition) SetPrecision 

func (fd FieldDefinition) SetPrecision(precision int)

Set the precision for this field

func (FieldDefinition) SetType 

func (fd FieldDefinition) SetType(fType FieldType)

Set the type of this field

func (FieldDefinition) SetWidth 

func (fd FieldDefinition) SetWidth(width int)

Set the formatting width for this field

func (FieldDefinition) Type 

func (fd FieldDefinition) Type() FieldType

Fetch the type of this field

func (FieldDefinition) Width 

func (fd FieldDefinition) Width() int

Fetch the formatting width for this field

type FieldType 

type FieldType int

List of well known binary geometry types

func (FieldType) Name 

func (ft FieldType) Name() string

Fetch human readable name for the field type

type GeomFieldDefinition 

type GeomFieldDefinition struct {
	// contains filtered or unexported fields
}

-------------------------------------------------------------------- 

Geometry Field definition functions

--------------------------------------------------------------------

func CreateGeomFieldDefinition 

func CreateGeomFieldDefinition(name string, geomType GeometryType) GeomFieldDefinition

OGRGeomFieldDefn(const char *pszNameIn, OGRwkbGeometryTypeeGeomTypeIn)

func (GeomFieldDefinition) Destroy 

func (gfd GeomFieldDefinition) Destroy()

Destroy the geom field definition

func (GeomFieldDefinition) FieldIsIngored 

func (gfd GeomFieldDefinition) FieldIsIngored() bool

Return whether this field should be omitted when fetching features.

func (GeomFieldDefinition) IsNullable 

func (gfd GeomFieldDefinition) IsNullable() bool

Return whether this geometry field can receive null values.

func (GeomFieldDefinition) Name 

func (gfd GeomFieldDefinition) Name() string

Fetch the name of the geom field

func (GeomFieldDefinition) SetFieldIgnored 

func (gfd GeomFieldDefinition) SetFieldIgnored(isIgnored bool)

Set whether this field should be omitted when fetching features.

func (GeomFieldDefinition) SetName 

func (gfd GeomFieldDefinition) SetName(name string)

Set the name of the geom field

func (GeomFieldDefinition) SetNullable 

func (gfd GeomFieldDefinition) SetNullable(isNullable bool)

Set whether this geometry field can receive null values.

func (GeomFieldDefinition) SetSpatialReference 

func (gfd GeomFieldDefinition) SetSpatialReference(sr SpatialReference)

Set the spatial reference of this field.

func (GeomFieldDefinition) SetType 

func (gfd GeomFieldDefinition) SetType(geomType GeometryType)

Set the type of this geom field

func (GeomFieldDefinition) SpatialReference 

func (gfd GeomFieldDefinition) SpatialReference() SpatialReference

Fetch spatial reference system of this field.

func (GeomFieldDefinition) Type 

func (gfd GeomFieldDefinition) Type() GeometryType

Fetch the type of this geom field

type Geometry 

type Geometry struct {
	// contains filtered or unexported fields
}

func ApproximateArcAngles 

func ApproximateArcAngles(
	x, y, z,
	primaryRadius,
	secondaryRadius,
	rotation,
	startAngle,
	endAngle,
	stepSizeDegrees float64,
) Geometry

Stroke arc to linestring

func Create 

func Create(geomType GeometryType) Geometry

Create an empty geometry of the desired type

func CreateFromGML 

func CreateFromGML(gml string) Geometry

Create a geometry from its GML representation

func CreateFromJson 

func CreateFromJson(_json string) Geometry

Create a geometry object from its GeoJSON representation

func CreateFromWKB 

func CreateFromWKB(wkb []uint8, srs SpatialReference, bytes int) (Geometry, error)

Create a geometry object from its well known binary representation

func CreateFromWKT 

func CreateFromWKT(wkt string, srs SpatialReference) (Geometry, error)

Create a geometry object from its well known text representation

func (Geometry) AddGeometry 

func (geom Geometry) AddGeometry(other Geometry) error

Add a geometry to a geometry container

func (Geometry) AddGeometryDirectly 

func (geom Geometry) AddGeometryDirectly(other Geometry) error

Add a geometry to a geometry container and assign ownership to that container

func (Geometry) AddPoint 

func (geom Geometry) AddPoint(x, y, z float64)

Add a new point to the geometry (line string or polygon only)

func (Geometry) AddPoint2D 

func (geom Geometry) AddPoint2D(x, y float64)

Add a new point to the geometry (line string or polygon only), ignoring the 3rd dimension

func (Geometry) Area 

func (geom Geometry) Area() float64

Compute area of geometry

func (Geometry) Boundary 

func (geom Geometry) Boundary() Geometry

Compute boundary for the geometry

func (Geometry) Buffer 

func (geom Geometry) Buffer(distance float64, segments int) Geometry

Compute buffer of the geometry

func (Geometry) BuildPolygonFromEdges 

func (geom Geometry) BuildPolygonFromEdges(autoClose bool, tolerance float64) (Geometry, error)

Build a polygon / ring from a set of lines

func (Geometry) Centroid 

func (geom Geometry) Centroid() Geometry

Compute centroid of geometry

func (Geometry) Clone 

func (geom Geometry) Clone() Geometry

Create a copy of this geometry

func (Geometry) CloseRings 

func (geom Geometry) CloseRings()

Force rings to be closed

func (Geometry) Contains 

func (geom Geometry) Contains(other Geometry) bool

Return true if this geometry contains the other

func (Geometry) ConvexHull 

func (geom Geometry) ConvexHull() Geometry

Compute convex hull for the geometry

func (Geometry) CoordinateDimension 

func (geom Geometry) CoordinateDimension() int

Get the dimension of the coordinates in this geometry

func (Geometry) Crosses 

func (geom Geometry) Crosses(other Geometry) bool

Return true if this feature crosses the other

func (Geometry) Destroy 

func (geometry Geometry) Destroy()

Destroy geometry object

func (Geometry) Difference 

func (geom Geometry) Difference(other Geometry) Geometry

Compute difference between this geometry and the other

func (Geometry) Dimension 

func (geom Geometry) Dimension() int

Get the dimension of this geometry

func (Geometry) Disjoint 

func (geom Geometry) Disjoint(other Geometry) bool

Return true if the features are disjoint

func (Geometry) Distance 

func (geom Geometry) Distance(other Geometry) float64

Compute distance between thie geometry and the other

func (Geometry) Distance3D 

func (geom Geometry) Distance3D(other Geometry) float64

Compute 3D distance between thie geometry and the other. This method is built on the SFCGAL library, check it for the definition of the geometry operation. If OGR is built without the SFCGAL library, this method will always return -1.0

func (Geometry) Empty 

func (geom Geometry) Empty()

Clear the geometry to its uninitialized state

func (Geometry) Envelope 

func (geom Geometry) Envelope() Envelope

Compute and return the bounding envelope for this geometry

func (Geometry) Equals 

func (geom Geometry) Equals(other Geometry) bool

Return true if these features are equal

func (Geometry) FlattenTo2D 

func (geom Geometry) FlattenTo2D()

Convert geometry to strictly 2D

func (Geometry) ForceToMultiLineString 

func (geom Geometry) ForceToMultiLineString() Geometry

Convert to multilinestring

func (Geometry) ForceToMultiPoint 

func (geom Geometry) ForceToMultiPoint() Geometry

Convert to multipoint

func (Geometry) ForceToMultiPolygon 

func (geom Geometry) ForceToMultiPolygon() Geometry

Convert to multipolygon

func (Geometry) ForceToPolygon 

func (geom Geometry) ForceToPolygon() Geometry

Convert to polygon

func (Geometry) FromWKB 

func (geom Geometry) FromWKB(wkb []uint8, bytes int) error

Assign a geometry from well known binary data

func (Geometry) FromWKT 

func (geom Geometry) FromWKT(wkt string) error

Assign geometry object from its well known text representation

func (Geometry) Geometry 

func (geom Geometry) Geometry(index int) Geometry

Fetch geometry from a geometry container

func (Geometry) GeometryCount 

func (geom Geometry) GeometryCount() int

Fetch the number of elements in the geometry, or number of geometries in the container

func (Geometry) Intersection 

func (geom Geometry) Intersection(other Geometry) Geometry

Compute intersection of this geometry with the other

func (Geometry) Intersects 

func (geom Geometry) Intersects(other Geometry) bool

Return true if these features intersect

func (Geometry) IsEmpty 

func (geom Geometry) IsEmpty() bool

Test if the geometry is empty

func (Geometry) IsNull 

func (geom Geometry) IsNull() bool

Test if the geometry is null

func (Geometry) IsRing 

func (geom Geometry) IsRing() bool

Test if the geometry is a ring

func (Geometry) IsSimple 

func (geom Geometry) IsSimple() bool

Test if the geometry is simple

func (Geometry) IsValid 

func (geom Geometry) IsValid() bool

Test if the geometry is valid

func (Geometry) Length 

func (geom Geometry) Length() float64

Compute length of geometry

func (Geometry) Name 

func (geom Geometry) Name() string

Fetch geometry name

func (Geometry) Overlaps 

func (geom Geometry) Overlaps(other Geometry) bool

Return true if this geometry overlaps the other

func (Geometry) Point 

func (geom Geometry) Point(index int) (x, y, z float64)

Fetch the coordinates of a point in the geometry

func (Geometry) PointCount 

func (geom Geometry) PointCount() int

Fetch number of points in the geometry

func (Geometry) Polygonize 

func (geom Geometry) Polygonize() Geometry

Polygonize a set of sparse edges

func (Geometry) RemoveGeometry 

func (geom Geometry) RemoveGeometry(index int, delete bool) error

Remove a geometry from the geometry container

func (Geometry) Segmentize 

func (geom Geometry) Segmentize(distance float64)

Modify the geometry such that it has no line segment longer than the given distance

func (Geometry) SetCoordinateDimension 

func (geom Geometry) SetCoordinateDimension(dim int)

Set the dimension of the coordinates in this geometry

func (Geometry) SetPoint 

func (geom Geometry) SetPoint(index int, x, y, z float64)

Set the coordinates of a point in the geometry

func (Geometry) SetPoint2D 

func (geom Geometry) SetPoint2D(index int, x, y float64)

Set the coordinates of a point in the geometry, ignoring the 3rd dimension

func (Geometry) SetSpatialReference 

func (geom Geometry) SetSpatialReference(spatialRef SpatialReference)

Assign a spatial reference to this geometry

func (Geometry) Simplify 

func (geom Geometry) Simplify(tolerance float64) Geometry

Simplify the geometry

func (Geometry) SimplifyPreservingTopology 

func (geom Geometry) SimplifyPreservingTopology(tolerance float64) Geometry

Simplify the geometry while preserving topology

func (Geometry) SpatialReference 

func (geom Geometry) SpatialReference() SpatialReference

Fetch the spatial reference associated with this geometry

func (Geometry) SymmetricDifference 

func (geom Geometry) SymmetricDifference(other Geometry) Geometry

Compute symmetric difference between this geometry and the other

func (Geometry) ToGML 

func (geom Geometry) ToGML() string

Convert a geometry to GML format

func (Geometry) ToGML_Ex 

func (geom Geometry) ToGML_Ex(options []string) string

Convert a geometry to GML format with options

func (Geometry) ToJSON 

func (geom Geometry) ToJSON() string

Convert a geometry to JSON format

func (Geometry) ToJSON_ex 

func (geom Geometry) ToJSON_ex(options []string) string

Convert a geometry to JSON format with options

func (Geometry) ToKML 

func (geom Geometry) ToKML() string

Convert a geometry to KML format

func (Geometry) ToWKB 

func (geom Geometry) ToWKB() ([]uint8, error)

Convert a geometry to well known binary data

func (Geometry) ToWKT 

func (geom Geometry) ToWKT() (string, error)

Fetch geometry as WKT

func (Geometry) Touches 

func (geom Geometry) Touches(other Geometry) bool

Return true if this feature touches the other

func (Geometry) Transform 

func (geom Geometry) Transform(ct CoordinateTransform) error

Apply coordinate transformation to geometry

func (Geometry) TransformTo 

func (geom Geometry) TransformTo(sr SpatialReference) error

Transform geometry to new spatial reference system

func (Geometry) Type 

func (geom Geometry) Type() GeometryType

Fetch geometry type

func (Geometry) Union 

func (geom Geometry) Union(other Geometry) Geometry

Compute union of this geometry with the other

func (Geometry) UnionCascaded 

func (geom Geometry) UnionCascaded() Geometry

func (Geometry) WKBSize 

func (geom Geometry) WKBSize() int

Returns size of related binary representation

func (Geometry) Within 

func (geom Geometry) Within(other Geometry) bool

Return true if this geometry is within the other

func (Geometry) X 

func (geom Geometry) X(index int) float64

Fetch the X coordinate of a point in the geometry

func (Geometry) Y 

func (geom Geometry) Y(index int) float64

Fetch the Y coordinate of a point in the geometry

func (Geometry) Z 

func (geom Geometry) Z(index int) float64

Fetch the Z coordinate of a point in the geometry

type GeometryType 

type GeometryType uint32

List of well known binary geometry types

type Justification 

type Justification int

type Layer 

type Layer struct {
	// contains filtered or unexported fields
}

func (Layer) AlterFieldDefn 

func (layer Layer) AlterFieldDefn(index int, newDefn FieldDefinition, flags int) error

Alter the definition of an existing field of a layer

func (Layer) CommitTransaction 

func (layer Layer) CommitTransaction() error

Commit a transaction on data sources which support it Note: as of GDAL 2.0, use of this API is discouraged when the dataset offers dataset level transaction with GDALDataset::StartTransaction().

func (Layer) Create 

func (layer Layer) Create(feature Feature) error

Create and write a new feature within a layer

func (Layer) CreateField 

func (layer Layer) CreateField(fd FieldDefinition, approxOK bool) error

Create a new field on a layer

func (Layer) CreateGeomField 

func (layer Layer) CreateGeomField(fd FieldDefinition, approxOK bool) error

Create a new geometry field on a layer

func (Layer) Definition 

func (layer Layer) Definition() FeatureDefinition

Fetch the schema information for this layer

func (Layer) Delete 

func (layer Layer) Delete(index int64) error

Delete indicated feature from layer

func (Layer) DeleteField 

func (layer Layer) DeleteField(index int) error

Delete a field from the layer

func (Layer) Extent 

func (layer Layer) Extent(force bool) (env Envelope, err error)

Fetch the extent of this layer

func (Layer) ExtentEx 

func (layer Layer) ExtentEx(index int, force bool) (env Envelope, err error)

Fetch the extent of this layer on the spacified geometry field

func (Layer) FIDColumn 

func (layer Layer) FIDColumn() string

Fetch the name of the FID column

func (Layer) Feature 

func (layer Layer) Feature(index int64) Feature

Fetch a feature by its index

func (Layer) FeatureCount 

func (layer Layer) FeatureCount(force bool) (count int, ok bool)

Fetch the feature count for this layer

func (Layer) FindFieldIndex 

func (layer Layer) FindFieldIndex(field string, exactMatch bool) int

Gets the index for a field name

func (Layer) GeometryColumn 

func (layer Layer) GeometryColumn() string

Fetch the name of the geometry column

func (Layer) IsNull 

func (layer Layer) IsNull() bool

test for null geometry

func (Layer) Name 

func (layer Layer) Name() string

Return the layer name

func (Layer) NextFeature 

func (layer Layer) NextFeature() *Feature

Fetch the next available feature from this layer

func (Layer) ReorderField 

func (layer Layer) ReorderField(oldIndex, newIndex int) error

Reorder an existing field of a layer

func (Layer) ReorderFields 

func (layer Layer) ReorderFields(layerMap []int) error

Reorder all the fields of a layer

func (Layer) ResetReading 

func (layer Layer) ResetReading()

Reset reading to start on the first featre

func (Layer) RollbackTransaction 

func (layer Layer) RollbackTransaction() error

Roll back the current transaction on data sources which support it Note: as of GDAL 2.0, use of this API is discouraged when the dataset offers dataset level transaction with GDALDataset::StartTransaction().

func (Layer) SetAttributeFilter 

func (layer Layer) SetAttributeFilter(filter string) error

Set a new attribute query filter

func (Layer) SetFeature 

func (layer Layer) SetFeature(feature Feature) error

Rewrite the provided feature

func (Layer) SetIgnoredFields 

func (layer Layer) SetIgnoredFields(names []string) error

Set which fields can be ignored when retrieving features from the layer

func (Layer) SetNextByIndex 

func (layer Layer) SetNextByIndex(index int64) error

Move read cursor to the provided index

func (Layer) SetSpatialFilter 

func (layer Layer) SetSpatialFilter(filter Geometry)

Set a new spatial filter for this layer

func (Layer) SetSpatialFilterEx 

func (layer Layer) SetSpatialFilterEx(index int, filter Geometry)

Set a new spatial filter for this layer and field

func (Layer) SetSpatialFilterRect 

func (layer Layer) SetSpatialFilterRect(minX, minY, maxX, maxY float64)

Set a new rectangular spatial filter for this layer

func (Layer) SetSpatialFilterRectEx 

func (layer Layer) SetSpatialFilterRectEx(index int, minX, minY, maxX, maxY float64)

Set a new rectangular spatial filter for this layer

func (Layer) SpatialFilter 

func (layer Layer) SpatialFilter() Geometry

Return the current spatial filter for this layer

func (Layer) SpatialReference 

func (layer Layer) SpatialReference() SpatialReference

Fetch the spatial reference system for this layer

func (Layer) StartTransaction 

func (layer Layer) StartTransaction() error

Begin a transation on data sources which support it Note: as of GDAL 2.0, use of this API is discouraged when the dataset offers dataset level transaction with GDALDataset::StartTransaction().

func (Layer) Sync 

func (layer Layer) Sync() error

Flush pending changes to the layer

func (Layer) TestCapability 

func (layer Layer) TestCapability(capability string) bool

Test if this layer supports the named capability

func (Layer) Type 

func (layer Layer) Type() GeometryType

Return the layer geometry type

type OGRDriver 

type OGRDriver struct {
	// contains filtered or unexported fields
}

func OGRDriverByIndex 

func OGRDriverByIndex(index int) OGRDriver

Fetch the indicated driver by index

func OGRDriverByName 

func OGRDriverByName(name string) OGRDriver

Fetch the indicated driver by name

func (OGRDriver) Copy 

func (driver OGRDriver) Copy(source DataSource, name string, options []string) (newDS DataSource, ok bool)

Create a new datasource with this driver by copying all layers of the existing datasource

func (OGRDriver) Create 

func (driver OGRDriver) Create(name string, options []string) (newDS DataSource, ok bool)

Create a new data source based on this driver

func (OGRDriver) Delete 

func (driver OGRDriver) Delete(filename string) error

Delete a data source

func (OGRDriver) Deregister 

func (driver OGRDriver) Deregister()

Remove a driver from the list of registered drivers

func (OGRDriver) Name 

func (driver OGRDriver) Name() string

Fetch name of driver (file format)

func (OGRDriver) Open 

func (driver OGRDriver) Open(filename string, update int) (newDS DataSource, ok bool)

Attempt to open file with this driver

func (OGRDriver) Register 

func (driver OGRDriver) Register()

Add a driver to the list of registered drivers

func (OGRDriver) TestCapability 

func (driver OGRDriver) TestCapability(capability string) bool

Test if this driver supports the named capability

type SpatialReference 

type SpatialReference struct {
	// contains filtered or unexported fields
}

func CreateSpatialReference 

func CreateSpatialReference(wkt string) SpatialReference

Create a new SpatialReference

func (SpatialReference) AngularUnits 

func (sr SpatialReference) AngularUnits() (string, float64)

Fetch the angular units for the geographic coordinate system

func (SpatialReference) AttrValue 

func (sr SpatialReference) AttrValue(key string, child int) (value string, ok bool)

Fetch indicated attribute of named node

func (SpatialReference) AuthorityCode 

func (sr SpatialReference) AuthorityCode(target string) string

Get the authority code for a node

func (SpatialReference) AuthorityName 

func (sr SpatialReference) AuthorityName(target string) string

Get the authority name for a node

func (SpatialReference) AutoIdentifyEPSG 

func (sr SpatialReference) AutoIdentifyEPSG() error

Set EPSG authority info if possible

func (SpatialReference) Clone 

func (sr SpatialReference) Clone() SpatialReference

Make a duplicate of this spatial reference

func (SpatialReference) CloneGeogCS 

func (sr SpatialReference) CloneGeogCS() SpatialReference

Make a duplicate of the GEOGCS node of this spatial reference

func (SpatialReference) CopyGeographicCSFrom 

func (sr SpatialReference) CopyGeographicCSFrom(other SpatialReference) error

Copy geographic CS from another spatial reference

func (SpatialReference) Dereference 

func (sr SpatialReference) Dereference() int

Decrements the reference count by one, returning reference count

func (SpatialReference) Destroy 

func (sr SpatialReference) Destroy()

Destroy the spatial reference

func (SpatialReference) EPSGTreatsAsLatLong 

func (sr SpatialReference) EPSGTreatsAsLatLong() bool

Return true if EPSG feels this coordinate system should be treated as having lat/long coordinate ordering

func (SpatialReference) FromEPSG 

func (sr SpatialReference) FromEPSG(code int) error

Initialize SRS based on EPSG code

func (SpatialReference) FromEPSGA 

func (sr SpatialReference) FromEPSGA(code int) error

Initialize SRS based on EPSG code, using EPSG lat/long ordering

func (SpatialReference) FromERM 

func (sr SpatialReference) FromERM(proj, datum, units string) error

Import coordinate system from ERMapper projection definitions

func (SpatialReference) FromESRI 

func (sr SpatialReference) FromESRI(input string) error

Import coordinate system from ESRI .prj formats

func (SpatialReference) FromPCI 

func (sr SpatialReference) FromPCI(proj, units string, params []float64) error

Import coordinate system from PCI projection definition

func (SpatialReference) FromProj4 

func (sr SpatialReference) FromProj4(input string) error

Import PROJ.4 coordinate string

func (SpatialReference) FromURL 

func (sr SpatialReference) FromURL(url string) error

Import coordinate system from a URL

func (SpatialReference) FromUSGS 

func (sr SpatialReference) FromUSGS(projsys, zone int, params []float64, datum int) error

Import coordinate system from USGS projection definition

func (SpatialReference) FromWKT 

func (sr SpatialReference) FromWKT(wkt string) error

Initialize SRS based on WKT string

func (SpatialReference) FromXML 

func (sr SpatialReference) FromXML(xml string) error

Import coordinate system from XML format (GML only currently)

func (SpatialReference) GetAxisMappingStrategy 

func (sr SpatialReference) GetAxisMappingStrategy() AxisMappingStrategy

func (SpatialReference) GetPointer 

func (sr SpatialReference) GetPointer() C.OGRSpatialReferenceH

func (SpatialReference) InverseFlattening 

func (sr SpatialReference) InverseFlattening() (float64, error)

Get spheroid inverse flattening axis

func (SpatialReference) IsCompound 

func (sr SpatialReference) IsCompound() bool

Return true if compound coordinate system

func (SpatialReference) IsGeocentric 

func (sr SpatialReference) IsGeocentric() bool

Return true if geocentric coordinate system

func (SpatialReference) IsGeographic 

func (sr SpatialReference) IsGeographic() bool

Return true if geographic coordinate system

func (SpatialReference) IsLocal 

func (sr SpatialReference) IsLocal() bool

Return true if local coordinate system

func (SpatialReference) IsProjected 

func (sr SpatialReference) IsProjected() bool

Return true if projected coordinate system

func (SpatialReference) IsSame 

func (sr SpatialReference) IsSame(other SpatialReference) bool

Return true if the coordinate systems describe the same system

func (SpatialReference) IsSameGeographicCS 

func (sr SpatialReference) IsSameGeographicCS(other SpatialReference) bool

Return true if the geographic coordinate systems match

func (SpatialReference) IsSameVerticalCS 

func (sr SpatialReference) IsSameVerticalCS(other SpatialReference) bool

Return true if the vertical coordinate systems match

func (SpatialReference) IsVertical 

func (sr SpatialReference) IsVertical() bool

Return true if vertical coordinate system

func (SpatialReference) LinearUnits 

func (sr SpatialReference) LinearUnits() (string, float64)

Fetch linear projection units

func (SpatialReference) MorphFromESRI 

func (sr SpatialReference) MorphFromESRI() error

Convert in place from ESRI WKT format

func (SpatialReference) MorphToESRI 

func (sr SpatialReference) MorphToESRI() error

Convert in place to ESRI WKT format

func (SpatialReference) NormalizedProjectionParameter 

func (sr SpatialReference) NormalizedProjectionParameter(
	name string, defaultValue float64,
) (float64, error)

Fetch a normalized projection parameter value

func (SpatialReference) PrimeMeridian 

func (sr SpatialReference) PrimeMeridian() (string, float64)

Fetch prime meridian information

func (SpatialReference) ProjectionParameter 

func (sr SpatialReference) ProjectionParameter(name string, defaultValue float64) (float64, error)

Fetch a projection parameter value

func (SpatialReference) Reference 

func (sr SpatialReference) Reference() int

Increments the reference count by one, returning reference count

func (SpatialReference) Release 

func (sr SpatialReference) Release()

Decrements the reference count by one and destroy if zero

func (SpatialReference) SemiMajorAxis 

func (sr SpatialReference) SemiMajorAxis() (float64, error)

Get spheroid semi-major axis

func (SpatialReference) SemiMinorAxis 

func (sr SpatialReference) SemiMinorAxis() (float64, error)

Get spheroid semi-minor axis

func (SpatialReference) SetACEA 

func (sr SpatialReference) SetACEA(
	stdp1, stdp2, centerLat, centerLong, falseEasting, falseNorthing float64,
) error

Set to Albers Conic Equal Area

func (SpatialReference) SetAE 

func (sr SpatialReference) SetAE(centerLat, centerLong, falseEasting, falseNorthing float64) error

Set to Azimuthal Equidistant

func (SpatialReference) SetAngularUnits 

func (sr SpatialReference) SetAngularUnits(units string, radians float64) error

Set the angular units for the geographic coordinate system

func (SpatialReference) SetAttrValue 

func (sr SpatialReference) SetAttrValue(path, value string) error

Set attribute value in spatial reference

func (SpatialReference) SetAuthority 

func (sr SpatialReference) SetAuthority(target, authority string, code int) error

Sets the authority for a node

func (SpatialReference) SetAxisMappingStrategy 

func (sr SpatialReference) SetAxisMappingStrategy(ams AxisMappingStrategy)

func (SpatialReference) SetBonne 

func (sr SpatialReference) SetBonne(standardParallel, centralMeridian, falseEasting, falseNorthing float64) error

Set to Bonne

func (SpatialReference) SetCEA 

func (sr SpatialReference) SetCEA(stdp1, centralMeridian, falseEasting, falseNorthing float64) error

Set to Cylindrical Equal Area

func (SpatialReference) SetCS 

func (sr SpatialReference) SetCS(centerLat, centerLong, falseEasting, falseNorthing float64) error

Set to Cassini-Soldner

func (SpatialReference) SetCompoundCS 

func (sr SpatialReference) SetCompoundCS(
	name string,
	horizontal, vertical SpatialReference,
) error

Setup a compound coordinate system

func (SpatialReference) SetEC 

func (sr SpatialReference) SetEC(
	stdp1, stdp2, centerLat, centerLong, falseEasting, falseNorthing float64,
) error

Set to Equidistant Conic

func (SpatialReference) SetEckert 

func (sr SpatialReference) SetEckert(variation int, centralMeridian, falseEasting, falseNorthing float64) error

Set to Eckert I-VI

func (SpatialReference) SetEquirectangular 

func (sr SpatialReference) SetEquirectangular(
	centerLat, centerLong, falseEasting, falseNorthing float64,
) error

Set to Equirectangular

func (SpatialReference) SetEquirectangularGeneralized 

func (sr SpatialReference) SetEquirectangularGeneralized(
	centerLat, centerLong, psuedoStdParallel, falseEasting, falseNorthing float64,
) error

Set to Equirectangular (generalized form)

func (SpatialReference) SetFromUserInput 

func (sr SpatialReference) SetFromUserInput(name string) error

Set spatial reference from various text formats

func (SpatialReference) SetGEOS 

func (sr SpatialReference) SetGEOS(
	centralMeridian, satelliteHeight, falseEasting, falseNorthing float64,
) error

Set to GEOS - Geostationary Satellite View

func (SpatialReference) SetGH 

func (sr SpatialReference) SetGH(centralMeridian, falseEasting, falseNorthing float64) error

Set to Goode Homolosine

func (SpatialReference) SetGS 

func (sr SpatialReference) SetGS(centralMeridian, falseEasting, falseNorthing float64) error

Set to Gall Stereographic

func (SpatialReference) SetGSTM 

func (sr SpatialReference) SetGSTM(
	centerLat, centerLong, scale, falseEasting, falseNorthing float64,
) error

Set to Gauss Schreiber Transverse Mercator

func (SpatialReference) SetGeocentricCS 

func (sr SpatialReference) SetGeocentricCS(name string) error

Set the user visible geographic CS name

func (SpatialReference) SetGeographicCS 

func (sr SpatialReference) SetGeographicCS(
	geogName, datumName, spheroidName string,
	semiMajor, flattening float64,
	pmName string,
	offset float64,
	angularUnits string,
	toRadians float64,
) error

Set geographic coordinate system

func (SpatialReference) SetGnomonic 

func (sr SpatialReference) SetGnomonic(
	centerLat, centerLong, falseEasting, falseNorthing float64,
) error

Set to gnomonic

func (SpatialReference) SetHOM 

func (sr SpatialReference) SetHOM(
	centerLat, centerLong, azimuth, rectToSkew, scale, falseEasting, falseNorthing float64,
) error

Set to Hotine Oblique Mercator projection using azimuth angle

func (SpatialReference) SetHOM2PNO 

func (sr SpatialReference) SetHOM2PNO(
	centerLat, lat1, long1, lat2, long2, scale, falseEasting, falseNorthing float64,
) error

Set to Hotine Oblique Mercator projection using two points on projection centerline

func (SpatialReference) SetIGH 

func (sr SpatialReference) SetIGH() error

Set to Interrupted Goode Homolosine

func (SpatialReference) SetIWMPolyconic 

func (sr SpatialReference) SetIWMPolyconic(
	lat1, lat2, centerLong, falseEasting, falseNorthing float64,
) error

Set to International Map of the World Polyconic

func (SpatialReference) SetKrovak 

func (sr SpatialReference) SetKrovak(
	centerLat, centerLong, azimuth, psuedoStdParallel, scale, falseEasting, falseNorthing float64,
) error

Set to Krovak Oblique Conic Conformal

func (SpatialReference) SetLAEA 

func (sr SpatialReference) SetLAEA(
	centerLat, centerLong, falseEasting, falseNorthing float64,
) error

Set to Lambert Azimuthal Equal Area

func (SpatialReference) SetLCC 

func (sr SpatialReference) SetLCC(
	stdp1, stdp2, centerLat, centerLong, falseEasting, falseNorthing float64,
) error

Set to Lambert Conformal Conic

func (SpatialReference) SetLCC1SP 

func (sr SpatialReference) SetLCC1SP(
	centerLat, centerLong, scale, falseEasting, falseNorthing float64,
) error

Set to Lambert Conformal Conic (1 standard parallel)

func (SpatialReference) SetLCCB 

func (sr SpatialReference) SetLCCB(
	stdp1, stdp2, centerLat, centerLong, falseEasting, falseNorthing float64,
) error

Set to Lambert Conformal Conic (Belgium)

func (SpatialReference) SetLinearUnits 

func (sr SpatialReference) SetLinearUnits(name string, toMeters float64) error

Set the linear units for the projection

func (SpatialReference) SetLinearUnitsAndUpdateParameters 

func (sr SpatialReference) SetLinearUnitsAndUpdateParameters(name string, toMeters float64) error

Set the linear units for the target node and update all existing linear parameters

func (SpatialReference) SetLocalCS 

func (sr SpatialReference) SetLocalCS(name string) error

Set the user visible local CS name

func (SpatialReference) SetMC 

func (sr SpatialReference) SetMC(
	centerLat, centerLong, falseEasting, falseNorthing float64,
) error

Set to Miller Cylindrical

func (SpatialReference) SetMercator 

func (sr SpatialReference) SetMercator(
	centerLat, centerLong, scale, falseEasting, falseNorthing float64,
) error

Set to Mercator

func (SpatialReference) SetMollweide 

func (sr SpatialReference) SetMollweide(
	centralMeridian, falseEasting, falseNorthing float64,
) error

Set tp Mollweide

func (SpatialReference) SetNZMG 

func (sr SpatialReference) SetNZMG(
	centerLat, centerLong, falseEasting, falseNorthing float64,
) error

Set to New Zealand Map Grid

func (SpatialReference) SetNormalizedProjectionParameter 

func (sr SpatialReference) SetNormalizedProjectionParameter(name string, value float64) error

Set a projection parameter with a normalized value

func (SpatialReference) SetOS 

func (sr SpatialReference) SetOS(
	originLat, meridian, scale, falseEasting, falseNorthing float64,
) error

Set to Oblique Stereographic

func (SpatialReference) SetOrthographic 

func (sr SpatialReference) SetOrthographic(
	centerLat, centerLong, falseEasting, falseNorthing float64,
) error

Set to Orthographic

func (SpatialReference) SetPS 

func (sr SpatialReference) SetPS(
	centerLat, centerLong, scale, falseEasting, falseNorthing float64,
) error

Set to Polar Stereographic

func (SpatialReference) SetPolyconic 

func (sr SpatialReference) SetPolyconic(
	centerLat, centerLong, falseEasting, falseNorthing float64,
) error

Set to Polyconic

func (SpatialReference) SetProjectedCS 

func (sr SpatialReference) SetProjectedCS(name string) error

Set the user visible projected CS name

func (SpatialReference) SetProjectionByName 

func (sr SpatialReference) SetProjectionByName(name string) error

Set a projection by name

func (SpatialReference) SetProjectionParameter 

func (sr SpatialReference) SetProjectionParameter(name string, value float64) error

Set a projection parameter value

func (SpatialReference) SetRobinson 

func (sr SpatialReference) SetRobinson(
	centerLong, falseEasting, falseNorthing float64,
) error

Set to Robinson

func (SpatialReference) SetSOC 

func (sr SpatialReference) SetSOC(
	latitudeOfOrigin, centralMeridian, falseEasting, falseNorthing float64,
) error

Set to Swiss Oblique Cylindrical

func (SpatialReference) SetSinusoidal 

func (sr SpatialReference) SetSinusoidal(
	centerLong, falseEasting, falseNorthing float64,
) error

Set to Sinusoidal

func (SpatialReference) SetStatePlane 

func (sr SpatialReference) SetStatePlane(zone int, nad83 bool) error

Set State Plane projection definition

func (SpatialReference) SetStatePlaneWithUnits 

func (sr SpatialReference) SetStatePlaneWithUnits(
	zone int,
	nad83 bool,
	unitName string,
	factor float64,
) error

Set State Plane projection definition

func (SpatialReference) SetStereographic 

func (sr SpatialReference) SetStereographic(
	centerLat, centerLong, scale, falseEasting, falseNorthing float64,
) error

Set to Stereographic

func (SpatialReference) SetTM 

func (sr SpatialReference) SetTM(
	centerLat, centerLong, scale, falseEasting, falseNorthing float64,
) error

Set to Transverse Mercator

func (SpatialReference) SetTMG 

func (sr SpatialReference) SetTMG(
	centerLat, centerLong, falseEasting, falseNorthing float64,
) error

Set to Tunisia Mining Grid

func (SpatialReference) SetTMSO 

func (sr SpatialReference) SetTMSO(
	centerLat, centerLong, scale, falseEasting, falseNorthing float64,
) error

Set to Transverse Mercator (South Oriented)

func (SpatialReference) SetTMVariant 

func (sr SpatialReference) SetTMVariant(
	variantName string, centerLat, centerLong, scale, falseEasting, falseNorthing float64,
) error

Set to Transverse Mercator variant

func (SpatialReference) SetTOWGS84 

func (sr SpatialReference) SetTOWGS84(dx, dy, dz, ex, ey, ez, ppm float64) error

Set the Bursa-Wolf conversion to WGS84

func (SpatialReference) SetTargetLinearUnits 

func (sr SpatialReference) SetTargetLinearUnits(target, units string, toMeters float64) error

Set the linear units for the target node

func (SpatialReference) SetUTM 

func (sr SpatialReference) SetUTM(zone int, north bool) error

Set UTM projection definition

func (SpatialReference) SetVDG 

func (sr SpatialReference) SetVDG(
	centerLong, falseEasting, falseNorthing float64,
) error

Set to VanDerGrinten

func (SpatialReference) SetVerticalCS 

func (sr SpatialReference) SetVerticalCS(csName, datumName string, datumType int) error

Set up the vertical coordinate system

func (SpatialReference) SetWellKnownGeographicCS 

func (sr SpatialReference) SetWellKnownGeographicCS(name string) error

Set geographic CS based on well known name

func (SpatialReference) TOWGS84 

func (sr SpatialReference) TOWGS84() (coeff [7]float64, err error)

Fetch the TOWGS84 parameters if available

func (SpatialReference) TargetLinearUnits 

func (sr SpatialReference) TargetLinearUnits(target string) (string, float64)

Fetch linear units for target

func (SpatialReference) ToMICoordSys 

func (sr SpatialReference) ToMICoordSys() (output string, errVal error)

Export coordinate system in Mapinfo style CoordSys format

func (SpatialReference) ToPCI 

func (sr SpatialReference) ToPCI() (proj, units string, params []float64, errVal error)

Export coordinate system in PCI format

func (SpatialReference) ToPrettyWKT 

func (sr SpatialReference) ToPrettyWKT(simplify bool) (string, error)

Export coordinate system to a nicely formatted WKT string

func (SpatialReference) ToProj4 

func (sr SpatialReference) ToProj4() (string, error)

Export coordinate system in PROJ.4 format

func (SpatialReference) ToUSGS 

func (sr SpatialReference) ToUSGS() (proj, zone int, params []float64, datum int, errVal error)

Export coordinate system to USGS GCTP projection definition

func (SpatialReference) ToWKT 

func (sr SpatialReference) ToWKT() (string, error)

Export coordinate system to WKT

func (SpatialReference) ToXML 

func (sr SpatialReference) ToXML() (xml string, errVal error)

Export coordinate system in XML format

func (SpatialReference) UTMZone 

func (sr SpatialReference) UTMZone() (zone int, north bool)

Get UTM zone information

func (SpatialReference) Validate 

func (sr SpatialReference) Validate() error

Validate spatial reference tokens

type StyleMgr 

type StyleMgr struct {
	// contains filtered or unexported fields
}

type StyleTable 

type StyleTable struct {
	// contains filtered or unexported fields
}

type StyleTool 

type StyleTool struct {
	// contains filtered or unexported fields
}

Source Files

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