ddi_point {rddi}

point and its child nodes

Description

0-dimensional geometric primitive, representing a position, but not having extent. In this declaration, point is limited to a longitude/latitude coordinate system.

Usage

ddi_point(...)

ddi_gringLat(...)

ddi_gringLon(...)

Arguments

...

Child nodes or attributes.

Details

Parent nodes

point is contained in polygon.

point specific child nodes

• ddi_gringLat() is the latitude (y coordinate) of a point. Valid range expressed in decimal degrees is as follows: -90,0 to 90,0 degrees (latitude).

• ddi_gringLon() is the longitude (x coordinate) of a point. Valid range expressed in decimal degrees is as follows: -180,0 to 180,0 degrees (longitude).

Value

A ddi_node object.

References

point documentation

gringLat documentation

gringLon documentation

Examples

# ddi_point() which requires ddi_gringLat() and ddi_gringLon()

ddi_point(ddi_gringLat("42.002207"), ddi_gringLon("-120.005729004"))