Class CMProj4Grid extends CMProjector

CMProj4Grid

Projects data based on a grid. This class uses a URL to a Proj4 grid file as created
by the associated Python script. This file is used when the user just wants to specify
a single projection grid. Otherwise, CMProj4WebService should be used which inherits
from this class and allows various settings to be specified and a web service call will
then produce a new grid for those settings.

Settings Group: Proj4Grid

Setting	Name	Type	Options	Default	Comments
URL	URL	CMTYPE_STRING		http://gsp.humboldt.edu/Archive/ProjectionGrids/robin/5_5/-179_179_-90_90/90.js	gsp.humboldt.edu/Archive/ProjectionGrids/robin/5_5/-179_179_-90_90/90.js" },
LongitudeOfOrigin	Longitude Of Origin	CMTYPE_FLOATING		0

Object Functions

Inherited From: CMProjector

Returns	Function	Throws
an	GetClippingPolys()
	RequestGrid()
	GetProectionBounds()

Object Functions

an=GetClippingPolys()

Returns clipping bounds that can be used to clip geographic data for the current
projection settings

Returns: an - array of clipping polys [Xs[],Ys[]]

RequestGrid()

Requests a grid specified by a URL

GetProectionBounds()

Start of getting the projection bounds based on uncertinaty