Table of Contents

Property SourceSpatialReference

Namespace
YndigoBlue.Velocity.Connections
Assembly
YndigoBlue.Velocity.dll

SourceSpatialReference

Gets or sets the source spatial reference system (SRS) in Well-Known Text (WKT) format for coordinate transformations.

public string SourceSpatialReference { get; set; }

Property Value

string

Examples

WGS 84 WKT (default):

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"]]

Remarks

Used by Teradata's ST_TRANSFORM function when performing metric calculations (distance, area, length, buffer) with units of measure. Teradata requires geometries to be transformed from geographic coordinate systems (degrees) to projected coordinate systems (meters) for accurate metric calculations.

Default: WGS 84 (EPSG:4326) - a geographic coordinate system using latitude/longitude in degrees.

This is the coordinate system your geometry data is stored in before transformation.