use of io.prestosql.spi.function.Description in project hetu-core by openlookeng.
the class GeoFunctions method stDifference.
@Description("Returns the Geometry value that represents the point set difference of two geometries")
@ScalarFunction("ST_Difference")
@SqlType(GEOMETRY_TYPE_NAME)
public static Slice stDifference(@SqlType(GEOMETRY_TYPE_NAME) Slice left, @SqlType(GEOMETRY_TYPE_NAME) Slice right) {
OGCGeometry leftGeometry = deserialize(left);
OGCGeometry rightGeometry = deserialize(right);
verifySameSpatialReference(leftGeometry, rightGeometry);
return serialize(leftGeometry.difference(rightGeometry));
}
use of io.prestosql.spi.function.Description in project hetu-core by openlookeng.
the class GeoFunctions method stDisjoint.
@SqlNullable
@Description("Returns TRUE if the Geometries do not spatially intersect - if they do not share any space together")
@ScalarFunction("ST_Disjoint")
@SqlType(BOOLEAN)
public static Boolean stDisjoint(@SqlType(GEOMETRY_TYPE_NAME) Slice left, @SqlType(GEOMETRY_TYPE_NAME) Slice right) {
if (!envelopes(left, right, Envelope::intersect)) {
return true;
}
OGCGeometry leftGeometry = deserialize(left);
OGCGeometry rightGeometry = deserialize(right);
verifySameSpatialReference(leftGeometry, rightGeometry);
return leftGeometry.disjoint(rightGeometry);
}
use of io.prestosql.spi.function.Description in project hetu-core by openlookeng.
the class GeoFunctions method stIsRing.
@SqlNullable
@Description("Returns TRUE if and only if the line is closed and simple")
@ScalarFunction("ST_IsRing")
@SqlType(BOOLEAN)
public static Boolean stIsRing(@SqlType(GEOMETRY_TYPE_NAME) Slice input) {
OGCGeometry geometry = deserialize(input);
validateType("ST_IsRing", geometry, EnumSet.of(LINE_STRING));
OGCLineString line = (OGCLineString) geometry;
return line.isClosed() && line.isSimple();
}
use of io.prestosql.spi.function.Description in project hetu-core by openlookeng.
the class GeoFunctions method stCrosses.
@SqlNullable
@Description("Returns TRUE if the supplied geometries have some, but not all, interior points in common")
@ScalarFunction("ST_Crosses")
@SqlType(BOOLEAN)
public static Boolean stCrosses(@SqlType(GEOMETRY_TYPE_NAME) Slice left, @SqlType(GEOMETRY_TYPE_NAME) Slice right) {
if (!envelopes(left, right, Envelope::intersect)) {
return false;
}
OGCGeometry leftGeometry = deserialize(left);
OGCGeometry rightGeometry = deserialize(right);
verifySameSpatialReference(leftGeometry, rightGeometry);
return leftGeometry.crosses(rightGeometry);
}
use of io.prestosql.spi.function.Description in project hetu-core by openlookeng.
the class GeoFunctions method lineLocatePoint.
@SqlNullable
@Description("Returns a float between 0 and 1 representing the location of the closest point on the LineString to the given Point, as a fraction of total 2d line length.")
@ScalarFunction("line_locate_point")
@SqlType(DOUBLE)
public static Double lineLocatePoint(@SqlType(GEOMETRY_TYPE_NAME) Slice lineSlice, @SqlType(GEOMETRY_TYPE_NAME) Slice pointSlice) {
Geometry line = JtsGeometrySerde.deserialize(lineSlice);
Geometry point = JtsGeometrySerde.deserialize(pointSlice);
if (line.isEmpty() || point.isEmpty()) {
return null;
}
GeometryType lineType = GeometryType.getForJtsGeometryType(line.getGeometryType());
if (lineType != GeometryType.LINE_STRING && lineType != GeometryType.MULTI_LINE_STRING) {
throw new PrestoException(INVALID_FUNCTION_ARGUMENT, format("First argument to line_locate_point must be a LineString or a MultiLineString. Got: %s", line.getGeometryType()));
}
GeometryType pointType = GeometryType.getForJtsGeometryType(point.getGeometryType());
if (pointType != GeometryType.POINT) {
throw new PrestoException(INVALID_FUNCTION_ARGUMENT, format("Second argument to line_locate_point must be a Point. Got: %s", point.getGeometryType()));
}
return new LengthIndexedLine(line).indexOf(point.getCoordinate()) / line.getLength();
}
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