1.先安装proj4,
2.引入proj4模块和openlayers的proj4包下的register方法.
3.用proj4定义扩展的自定义投影，使用register注册。
4.EPSG proj4格式定义列表
# Xian 1980 <4610> proj=longlat a=6378140 b=6356755.288157528 no_defs <> # China Geodetic Coordinate System 2000 <4490> proj=longlat ellps=GRS80 no_defs <> # WGS 84 <4326> proj=longlat datum=WGS84 no_defs <> # CGCS2000 / Gauss-Kruger zone 13 <4491> proj=tmerc lat_0=0 lon_0=75 k=1 x_0=13500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger zone 14 <4492> proj=tmerc lat_0=0 lon_0=81 k=1 x_0=14500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger zone 15 <4493> proj=tmerc lat_0=0 lon_0=87 k=1 x_0=15500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger zone 16 <4494> proj=tmerc lat_0=0 lon_0=93 k=1 x_0=16500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger zone 17 <4495> proj=tmerc lat_0=0 lon_0=99 k=1 x_0=17500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger zone 18 <4496> proj=tmerc lat_0=0 lon_0=105 k=1 x_0=18500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger zone 19 <4497> proj=tmerc lat_0=0 lon_0=111 k=1 x_0=19500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger zone 20 <4498> proj=tmerc lat_0=0 lon_0=117 k=1 x_0=20500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger zone 21 <4499> proj=tmerc lat_0=0 lon_0=123 k=1 x_0=21500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger zone 22 <4500> proj=tmerc lat_0=0 lon_0=129 k=1 x_0=22500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger zone 23 <4501> proj=tmerc lat_0=0 lon_0=135 k=1 x_0=23500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger CM 75E <4502> proj=tmerc lat_0=0 lon_0=75 k=1 x_0=500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger CM 81E <4503> proj=tmerc lat_0=0 lon_0=81 k=1 x_0=500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger CM 87E <4504> proj=tmerc lat_0=0 lon_0=87 k=1 x_0=500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger CM 93E <4505> proj=tmerc lat_0=0 lon_0=93 k=1 x_0=500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger CM 99E <4506> proj=tmerc lat_0=0 lon_0=99 k=1 x_0=500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger CM 105E <4507> proj=tmerc lat_0=0 lon_0=105 k=1 x_0=500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger CM 111E <4508> proj=tmerc lat_0=0 lon_0=111 k=1 x_0=500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger CM 117E <4509> proj=tmerc lat_0=0 lon_0=117 k=1 x_0=500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger CM 123E <4510> proj=tmerc lat_0=0 lon_0=123 k=1 x_0=500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger CM 129E <4511> proj=tmerc lat_0=0 lon_0=129 k=1 x_0=500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / Gauss-Kruger CM 135E <4512> proj=tmerc lat_0=0 lon_0=135 k=1 x_0=500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 25 <4513> proj=tmerc lat_0=0 lon_0=75 k=1 x_0=25500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 26 <4514> proj=tmerc lat_0=0 lon_0=78 k=1 x_0=26500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 27 <4515> proj=tmerc lat_0=0 lon_0=81 k=1 x_0=27500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 28 <4516> proj=tmerc lat_0=0 lon_0=84 k=1 x_0=28500000 y_0=0 ellps=GRS80 units=m no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 29 <4517> proj=tmerc lat_0=0 lon_0=87 k=1 x_0=29500000 y_0=0 ellps=GRS80 units=m no_defs &nbp;<> # CGCS2000 / 3-degree Gauss-Kruger zone 30 <4518> +proj=tmerc +lat_0=0 +lon_0=90 +k=1 +x_0=30500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 31 <4519> +proj=tmerc +lat_0=0 +lon_0=93 +k=1 +x_0=31500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 32 <4520> +proj=tmerc +lat_0=0 +lon_0=96 +k=1 +x_0=32500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 33 <4521> +proj=tmerc +lat_0=0 +lon_0=99 +k=1 +x_0=33500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 34 <4522> +proj=tmerc +lat_0=0 +lon_0=102 +k=1 +x_0=34500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 35 <4523> +proj=tmerc +lat_0=0 +lon_0=105 +k=1 +x_0=35500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 36 <4524> +proj=tmerc +lat_0=0 +lon_0=108 +k=1 +x_0=36500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 37 <4525> +proj=tmerc +lat_0=0 +lon_0=111 +k=1 +x_0=37500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 38 <4526> +proj=tmerc +lat_0=0 +lon_0=114 +k=1 +x_0=38500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 39 <4527> +proj=tmerc +lat_0=0 +lon_0=117 +k=1 +x_0=39500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 40 <4528> +proj=tmerc +lat_0=0 +lon_0=120 +k=1 +x_0=40500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 41 <4529> +proj=tmerc +lat_0=0 +lon_0=123 +k=1 +x_0=41500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 42 <4530> +proj=tmerc +lat_0=0 +lon_0=126 +k=1 +x_0=42500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 43 <4531> +proj=tmerc +lat_0=0 +lon_0=129 +k=1 +x_0=43500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 44 <4532> +proj=tmerc +lat_0=0 +lon_0=132 +k=1 +x_0=44500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger zone 45 <4533> +proj=tmerc +lat_0=0 +lon_0=135 +k=1 +x_0=45500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 75E <4534> +proj=tmerc +lat_0=0 +lon_0=75 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 78E <4535> +proj=tmerc +lat_0=0 +lon_0=78 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 81E <4536> +proj=tmerc +lat_0=0 +lon_0=81 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 84E <4537> +proj=tmerc +lat_0=0 +lon_0=84 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 87E <4538> +proj=tmerc +lat_0=0 +lon_0=87 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 90E <4539> +proj=tmerc +lat_0=0 +lon_0=90 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 93E <4540> +proj=tmerc +lat_0=0 +lon_0=93 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 96E <4541> +proj=tmerc +lat_0=0 +lon_0=96 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 99E <4542> +proj=tmerc +lat_0=0 +lon_0=99 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 102E <4543> +proj=tmerc +lat_0=0 +lon_0=102 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 105E <4544> +proj=tmerc +lat_0=0 +lon_0=105 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 108E <4545> +proj=tmerc +lat_0=0 +lon_0=108 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 111E <4546> +proj=tmerc +lat_0=0 +lon_0=111 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 114E <4547> +proj=tmerc +lat_0=0 +lon_0=114 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 117E <4548> +proj=tmerc +lat_0=0 +lon_0=117 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 120E <4549> +proj=tmerc +lat_0=0 +lon_0=120 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 123E <4550> +proj=tmerc +lat_0=0 +lon_0=123 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 126E <4551> +proj=tmerc +lat_0=0 +lon_0=126 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 129E <4552> +proj=tmerc +lat_0=0 +lon_0=129 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 132E <4553> +proj=tmerc +lat_0=0 +lon_0=132 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <> # CGCS2000 / 3-degree Gauss-Kruger CM 135E <4554> +proj=tmerc +lat_0=0 +lon_0=135 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs <>