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SRID WKID 空间参考简介

2016-08-09 14:15 232 查看

WKT

WKT是坐标系统的描述性文字，与SRID一一对应，常用于支持空间数据的数据库中描述空间参考信息，其英文定义如下所示。

Well Known Text :A WKT string for a spatial reference system describes the datum, geoid, coordinate system, and map projection of the spatial objects.

SRID

SRID是坐标参考系统的唯一标识，其英文定义如下：

A Spatial Reference System Identifier (SRID) is a unique value used to unambiguously identify projected, unprojected, and local spatial coordinate system definitions. These coordinate systems form the heart of all GIS applications.

WKID

WKID是Well-known ID的缩写，常用语Arcgis二次开发中。表示不同空间参考所对应的ID，例如WKID=4214表示GCS_Beijing_1954这种空间参考，4326代表WGS 84投影。我们常用到的、与中国相关的只有一百多个坐标参考，具体如下表所示：

Geographic Coordinate System 地理坐标

WKID描述
4214GCS_Beijing_1954
4326GCS_WGS_1984
4490GCS_China_Geodetic_Coordinate_System_2000
4555GCS_New_Beijing
4610GCS_Xian_1980

Projected Coordinate System 投影坐标

WKID描述
2327Xian_1980_GK_Zone_13
2328Xian_1980_GK_Zone_14
2329Xian_1980_GK_Zone_15
2330Xian_1980_GK_Zone_16
2331Xian_1980_GK_Zone_17
2332Xian_1980_GK_Zone_18
2333Xian_1980_GK_Zone_19
2334Xian_1980_GK_Zone_20
2335Xian_1980_GK_Zone_21
2336Xian_1980_GK_Zone_22
2337Xian_1980_GK_Zone_23
2338Xian_1980_GK_CM_75E
2339Xian_1980_GK_CM_81E
2340Xian_1980_GK_CM_87E
2341Xian_1980_GK_CM_93E
2342Xian_1980_GK_CM_99E
2343Xian_1980_GK_CM_105E
2344Xian_1980_GK_CM_111E
2345Xian_1980_GK_CM_117E
2346Xian_1980_GK_CM_123E
2347Xian_1980_GK_CM_129E
2348Xian_1980_GK_CM_135E
2349Xian_1980_3_Degree_GK_Zone_25
2350Xian_1980_3_Degree_GK_Zone_26
2351Xian_1980_3_Degree_GK_Zone_27
2352Xian_1980_3_Degree_GK_Zone_28
2353Xian_1980_3_Degree_GK_Zone_29
2354Xian_1980_3_Degree_GK_Zone_30
2355Xian_1980_3_Degree_GK_Zone_31
2356Xian_1980_3_Degree_GK_Zone_32
2357Xian_1980_3_Degree_GK_Zone_33
2358Xian_1980_3_Degree_GK_Zone_34
2359Xian_1980_3_Degree_GK_Zone_35
2360Xian_1980_3_Degree_GK_Zone_36
2361Xian_1980_3_Degree_GK_Zone_37
2362Xian_1980_3_Degree_GK_Zone_38
2363Xian_1980_3_Degree_GK_Zone_39
2364Xian_1980_3_Degree_GK_Zone_40
2365Xian_1980_3_Degree_GK_Zone_41
2366Xian_1980_3_Degree_GK_Zone_42
2367Xian_1980_3_Degree_GK_Zone_43
2368Xian_1980_3_Degree_GK_Zone_44
2369Xian_1980_3_Degree_GK_Zone_45
2370Xian_1980_3_Degree_GK_CM_75E
2371Xian_1980_3_Degree_GK_CM_78E
2372Xian_1980_3_Degree_GK_CM_81E
2373Xian_1980_3_Degree_GK_CM_84E
2374Xian_1980_3_Degree_GK_CM_87E
2375Xian_1980_3_Degree_GK_CM_90E
2376Xian_1980_3_Degree_GK_CM_93E
2377Xian_1980_3_Degree_GK_CM_96E
2378Xian_1980_3_Degree_GK_CM_99E
2379Xian_1980_3_Degree_GK_CM_102E
2380Xian_1980_3_Degree_GK_CM_105E
2381Xian_1980_3_Degree_GK_CM_108E
2382Xian_1980_3_Degree_GK_CM_111E
2383Xian_1980_3_Degree_GK_CM_114E
2384Xian_1980_3_Degree_GK_CM_117E
2385Xian_1980_3_Degree_GK_CM_120E
2386Xian_1980_3_Degree_GK_CM_123E
2387Xian_1980_3_Degree_GK_CM_126E
2388Xian_1980_3_Degree_GK_CM_129E
2389Xian_1980_3_Degree_GK_CM_132E
2390Xian_1980_3_Degree_GK_CM_135E
2401Beijing_1954_3_Degree_GK_Zone_25
2402Beijing_1954_3_Degree_GK_Zone_26
2403Beijing_1954_3_Degree_GK_Zone_27
2404Beijing_1954_3_Degree_GK_Zone_28
2405Beijing_1954_3_Degree_GK_Zone_29
2406Beijing_1954_3_Degree_GK_Zone_30
2407Beijing_1954_3_Degree_GK_Zone_31
2408Beijing_1954_3_Degree_GK_Zone_32
2409Beijing_1954_3_Degree_GK_Zone_33
2410Beijing_1954_3_Degree_GK_Zone_34
2411Beijing_1954_3_Degree_GK_Zone_35
2412Beijing_1954_3_Degree_GK_Zone_36
2413Beijing_1954_3_Degree_GK_Zone_37
2414Beijing_1954_3_Degree_GK_Zone_38
2415Beijing_1954_3_Degree_GK_Zone_39
2416Beijing_1954_3_Degree_GK_Zone_40
2417Beijing_1954_3_Degree_GK_Zone_41
2418Beijing_1954_3_Degree_GK_Zone_42
2419Beijing_1954_3_Degree_GK_Zone_43
2420Beijing_1954_3_Degree_GK_Zone_44
2421Beijing_1954_3_Degree_GK_Zone_45
2422Beijing_1954_3_Degree_GK_CM_75E
2423Beijing_1954_3_Degree_GK_CM_78E
2424Beijing_1954_3_Degree_GK_CM_81E
2425Beijing_1954_3_Degree_GK_CM_84E
2426Beijing_1954_3_Degree_GK_CM_87E
2427Beijing_1954_3_Degree_GK_CM_90E
2428Beijing_1954_3_Degree_GK_CM_93E
2429Beijing_1954_3_Degree_GK_CM_96E
2430Beijing_1954_3_Degree_GK_CM_99E
2431Beijing_1954_3_Degree_GK_CM_102E
2432Beijing_1954_3_Degree_GK_CM_105E
2433Beijing_1954_3_Degree_GK_CM_108E
2434Beijing_1954_3_Degree_GK_CM_111E
2435Beijing_1954_3_Degree_GK_CM_114E
2436Beijing_1954_3_Degree_GK_CM_117E
2437Beijing_1954_3_Degree_GK_CM_120E
2438Beijing_1954_3_Degree_GK_CM_123E
2439Beijing_1954_3_Degree_GK_CM_126E
2440Beijing_1954_3_Degree_GK_CM_129E
2441Beijing_1954_3_Degree_GK_CM_132E
2442Beijing_1954_3_Degree_GK_CM_135E
21413Beijing_1954_GK_Zone_13
21414Beijing_1954_GK_Zone_14
21415Beijing_1954_GK_Zone_15
21416Beijing_1954_GK_Zone_16
21417Beijing_1954_GK_Zone_17
21418Beijing_1954_GK_Zone_18
21419Beijing_1954_GK_Zone_19
21420Beijing_1954_GK_Zone_20
21421Beijing_1954_GK_Zone_21
21422Beijing_1954_GK_Zone_22
21423Beijing_1954_GK_Zone_23
21473Beijing_1954_GK_Zone_13N
21474Beijing_1954_GK_Zone_14N
21475Beijing_1954_GK_Zone_15N
21476Beijing_1954_GK_Zone_16N
21477Beijing_1954_GK_Zone_17N
21478Beijing_1954_GK_Zone_18N
21479Beijing_1954_GK_Zone_19N
21480Beijing_1954_GK_Zone_20N
21481Beijing_1954_GK_Zone_21N
21482Beijing_1954_GK_Zone_22N
21483Beijing_1954_GK_Zone_23N
3395WGS_1984_World_Mercator

参考

Projected Coordinate Systems

Geographic Coordinate Systems

SRS SRID等介绍
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