I need register more epsg code and string?

[pampa0629]

In the source of "Convert.go", the default epsg codes just have three, including EPSG3395, EPSG3857 and EPSG4087. I need use more. so I add Register function, the source code like :

func Register(dest EPSGCode, projString string) {
cacheLock.Lock()
projStrings[dest] = projString
cacheLock.Unlock()
}

[roggen-yang]

I will add WGS84 support first, can you add it like your code?

[ARolek]

WGS84 support is already available:

proj/Convert.go

Lines 25 to 34 in 7d903f0

	const (
	EPSG3395 EPSGCode = 3395
	WorldMercator = EPSG3395
	EPSG3857 = 3857
	WebMercator = EPSG3857
	EPSG4087 = 4087
	WorldEquidistantCylindrical = EPSG4087
	EPSG4326 = 4326
	WGS84 = EPSG4326
	)

[roggen-yang]

var projStrings = map[EPSGCode]string{
EPSG3395: "+proj=merc +lon_0=0 +k=1 +x_0=0 +y_0=0 +datum=WGS84", // TODO: support +units=m +no_defs
EPSG3857: "+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0", // TODO: support +units=m +nadgrids=@null +wktext +no_defs
EPSG4087: "+proj=eqc +lat_ts=0 +lat_0=0 +lon_0=0 +x_0=0 +y_0=0 +datum=WGS84", // TODO: support +units=m +no_defs
}

in this map, there are only three codes support

[ARolek]

Yep, you're right. I think the conversion support is from 4326 to these codes, but not the other way around.