adding Yukon projections to ArcView3

[matt wilkie]

How to add common projections used in the Yukon to ArcView 3's default projection list:

Edit C:\ESRI\AV_GIS30\ARCVIEW\ETC\DEFAULT.PRJ and insert the following between the lines "/2.1" and "(CooSys.1":

/2.1

(CooSys.99
	Name:		"Yukon Projections"
	Default:	9901
	Projections:	9901
	Projections:	3007
	Projections:	3008
	Projections:	3009
	Projections:	3010
)
(Albers.9901
	Description:	"Albers Equal-Area (Yukon)"
	Ellipsoid:	1003
	Lambda0:	-2.31256125889177
	Phi0:	1.02974425867634
	Phi1:	1.07628637206342
	Phi2:	1.18682389135578
	FalseEasting:	500000.00000000000000
	FalseNorthing:	500000.00000000000000
)

(Prj.99110
	Description:	"Projections of the World ; Geographic Decimal Degrees"
	Ellipsoid:	1000
)

(CooSys.1
    Name: "Projections of the World"
    ...etc.

Here is the result: DEFAULT.PRJ

Explanation

"CooSys" defines a Category (the first drop down list). "Projections" lists the projections within the category, and can be defined anywhere within the file. The 3000 series simply include the standard NAD83 UTM projections defined lower down. This is why we only need to add one custom projection, namely "Albers.9901". The custom Geographic one shewn is not necessary, but I added it in anyway in order to show a more descriptive note. No I don't know what the Lambda and Phi numbers mean. To get those I defined a view projection the long way (view > properties > projection > custom ....), saved to an .apr and inspected it.