Duyuru:
15 Nisan 2025'ten önce Earth Engine'i kullanmak için kaydedilen tüm ticari olmayan projelerin Earth Engine erişimini sürdürmek için
ticari olmayan uygunluğu doğrulaması gerekir.
ee.Projection
Koleksiyonlar ile düzeninizi koruyun
İçeriği tercihlerinize göre kaydedin ve kategorilere ayırın.
Belirtilen temel koordinat sistemi ve yansıtılmış koordinatlar ile temel arasındaki belirtilen dönüşümle bir projeksiyon döndürür. Dönüşüm belirtilmemişse kimlik dönüşümü varsayılır.
| Kullanım | İadeler |
|---|
ee.Projection(crs, transform, transformWkt) | Projeksiyon |
| Bağımsız Değişken | Tür | Ayrıntılar |
|---|
crs | Nesne | Bu projeksiyonun temel koordinat referans sistemi, iyi bilinen bir yetkili kodu olarak verilir (ör. "EPSG:4326") veya bir WKT dizesi. |
transform | Liste, varsayılan: null | Yansıtılan koordinatlar ile temel koordinat sistemi arasındaki dönüşüm, satır öncelikli sırada 2x3 afin dönüşüm matrisi olarak belirtilir: [xScale, xShearing, xTranslation, yShearing, yScale, yTranslation]. Hem bu hem de "transformWkt" belirtilemez. |
transformWkt | Dize, varsayılan: null | Yansıtılmış koordinatlar ile temel koordinat sistemi arasındaki dönüşüm, WKT dizesi olarak belirtilir. Hem bu özellik hem de "transform" özelliği belirtilemez. |
Örnekler
Kod Düzenleyici (JavaScript)
// Construct projections.
// Printing the projection will show the EPSG code if it is a direct match.
//
// e.g. You will see this for the string 'EPSG:3857'
// type: Projection
// crs: EPSG:3857
// transform: [1,0,0,0,1,0]
print(ee.Projection('EPSG:3857')); // https://epsg.io/3857
print(ee.Projection('EPSG:4326')); // https://epsg.io/4326
// WKT projection description for https://epsg.io/27572
var proj = ee.Projection(
'PROJCS["NTF (Paris) / Lambert zone II", ' +
' GEOGCS["NTF (Paris)", ' +
' DATUM["Nouvelle Triangulation Francaise (Paris)", ' +
' SPHEROID["Clarke 1880 (IGN)", 6378249.2, 293.4660212936269,'+
' AUTHORITY["EPSG","7011"]], ' +
' AUTHORITY["EPSG","6807"]], ' +
' PRIMEM["Paris", 2.5969213, AUTHORITY["EPSG","8903"]], ' +
' UNIT["grade", 0.015707963267948967], ' +
' AXIS["Geodetic longitude", EAST], ' +
' AXIS["Geodetic latitude", NORTH], ' +
' AUTHORITY["EPSG","4807"]], ' +
' PROJECTION["Lambert_Conformal_Conic_1SP", AUTHORITY["EPSG","9801"]], ' +
' PARAMETER["central_meridian", 0.0], ' +
' PARAMETER["latitude_of_origin", 52.0], ' +
' PARAMETER["scale_factor", 0.99987742], ' +
' PARAMETER["false_easting", 600000.0], ' +
' PARAMETER["false_northing", 2200000.0], ' +
' UNIT["m", 1.0], ' +
' AXIS["Easting", EAST], ' +
' AXIS["Northing", NORTH], ' +
' AUTHORITY["EPSG","27572"]]');
print(proj); // crs: EPSG:27572
Python kurulumu
Python API'si ve etkileşimli geliştirme için geemap kullanımı hakkında bilgi edinmek üzere
Python Ortamı sayfasına bakın.
import ee
import geemap.core as geemap
Colab (Python)
# Construct projections.
# Printing the projection will show the EPSG code if it is a direct match.
#
# e.g. You will see this for the string 'EPSG:3857'
# type: Projection
# crs: EPSG:3857
# transform: [1,0,0,0,1,0]
print(ee.Projection('EPSG:3857').getInfo()) # https://epsg.io/3857
print(ee.Projection('EPSG:4326').getInfo()) # https://epsg.io/4326
# WKT projection description for https://epsg.io/27572
proj = ee.Projection(
'PROJCS["NTF (Paris) / Lambert zone II", ' +
' GEOGCS["NTF (Paris)", ' +
' DATUM["Nouvelle Triangulation Francaise (Paris)", ' +
' SPHEROID["Clarke 1880 (IGN)", 6378249.2, 293.4660212936269,'+
' AUTHORITY["EPSG","7011"]], ' +
' AUTHORITY["EPSG","6807"]], ' +
' PRIMEM["Paris", 2.5969213, AUTHORITY["EPSG","8903"]], ' +
' UNIT["grade", 0.015707963267948967], ' +
' AXIS["Geodetic longitude", EAST], ' +
' AXIS["Geodetic latitude", NORTH], ' +
' AUTHORITY["EPSG","4807"]], ' +
' PROJECTION["Lambert_Conformal_Conic_1SP", AUTHORITY["EPSG","9801"]], ' +
' PARAMETER["central_meridian", 0.0], ' +
' PARAMETER["latitude_of_origin", 52.0], ' +
' PARAMETER["scale_factor", 0.99987742], ' +
' PARAMETER["false_easting", 600000.0], ' +
' PARAMETER["false_northing", 2200000.0], ' +
' UNIT["m", 1.0], ' +
' AXIS["Easting", EAST], ' +
' AXIS["Northing", NORTH], ' +
' AUTHORITY["EPSG","27572"]]')
print(proj.getInfo()) # crs: EPSG:27572
Aksi belirtilmediği sürece bu sayfanın içeriği Creative Commons Atıf 4.0 Lisansı altında ve kod örnekleri Apache 2.0 Lisansı altında lisanslanmıştır. Ayrıntılı bilgi için Google Developers Site Politikaları'na göz atın. Java, Oracle ve/veya satış ortaklarının tescilli ticari markasıdır.
Son güncelleme tarihi: 2025-07-26 UTC.
[null,null,["Son güncelleme tarihi: 2025-07-26 UTC."],[[["\u003cp\u003e\u003ccode\u003eee.Projection\u003c/code\u003e returns a Projection object with a defined base coordinate system and an optional transform.\u003c/p\u003e\n"],["\u003cp\u003eThe base coordinate system (\u003ccode\u003ecrs\u003c/code\u003e) can be specified using an authority code (e.g., 'EPSG:4326') or a WKT string.\u003c/p\u003e\n"],["\u003cp\u003eThe transform between projected and base coordinates can be defined by a 2x3 affine transform matrix (\u003ccode\u003etransform\u003c/code\u003e) or a WKT string (\u003ccode\u003etransformWkt\u003c/code\u003e).\u003c/p\u003e\n"],["\u003cp\u003eIf no transform is provided, the identity transform is used, implying a direct mapping between projected and base coordinates.\u003c/p\u003e\n"]]],[],null,["# ee.Projection\n\nReturns a Projection with the given base coordinate system and the given transform between projected coordinates and the base. If no transform is specified, the identity transform is assumed.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|--------------------------------------------------------|------------|\n| `ee.Projection(crs, `*transform* `, `*transformWkt*`)` | Projection |\n\n| Argument | Type | Details |\n|----------------|-----------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `crs` | Object | The base coordinate reference system of this Projection, given as a well-known authority code (e.g., 'EPSG:4326') or a WKT string. |\n| `transform` | List, default: null | The transform between projected coordinates and the base coordinate system, specified as a 2x3 affine transform matrix in row-major order: \\[xScale, xShearing, xTranslation, yShearing, yScale, yTranslation\\]. May not specify both this and 'transformWkt'. |\n| `transformWkt` | String, default: null | The transform between projected coordinates and the base coordinate system, specified as a WKT string. May not specify both this and 'transform'. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// Construct projections.\n// Printing the projection will show the EPSG code if it is a direct match.\n//\n// e.g. You will see this for the string 'EPSG:3857'\n// type: Projection\n// crs: EPSG:3857\n// transform: [1,0,0,0,1,0]\n\nprint(ee.Projection('EPSG:3857')); // https://epsg.io/3857\nprint(ee.Projection('EPSG:4326')); // https://epsg.io/4326\n\n// WKT projection description for https://epsg.io/27572\nvar proj = ee.Projection(\n 'PROJCS[\"NTF (Paris) / Lambert zone II\", ' +\n ' GEOGCS[\"NTF (Paris)\", ' +\n ' DATUM[\"Nouvelle Triangulation Francaise (Paris)\", ' +\n ' SPHEROID[\"Clarke 1880 (IGN)\", 6378249.2, 293.4660212936269,'+\n ' AUTHORITY[\"EPSG\",\"7011\"]], ' +\n ' AUTHORITY[\"EPSG\",\"6807\"]], ' +\n ' PRIMEM[\"Paris\", 2.5969213, AUTHORITY[\"EPSG\",\"8903\"]], ' +\n ' UNIT[\"grade\", 0.015707963267948967], ' +\n ' AXIS[\"Geodetic longitude\", EAST], ' +\n ' AXIS[\"Geodetic latitude\", NORTH], ' +\n ' AUTHORITY[\"EPSG\",\"4807\"]], ' +\n ' PROJECTION[\"Lambert_Conformal_Conic_1SP\", AUTHORITY[\"EPSG\",\"9801\"]], ' +\n ' PARAMETER[\"central_meridian\", 0.0], ' +\n ' PARAMETER[\"latitude_of_origin\", 52.0], ' +\n ' PARAMETER[\"scale_factor\", 0.99987742], ' +\n ' PARAMETER[\"false_easting\", 600000.0], ' +\n ' PARAMETER[\"false_northing\", 2200000.0], ' +\n ' UNIT[\"m\", 1.0], ' +\n ' AXIS[\"Easting\", EAST], ' +\n ' AXIS[\"Northing\", NORTH], ' +\n ' AUTHORITY[\"EPSG\",\"27572\"]]');\nprint(proj); // crs: EPSG:27572\n```\nPython setup\n\nSee the [Python Environment](/earth-engine/guides/python_install) page for information on the Python API and using\n`geemap` for interactive development. \n\n```python\nimport ee\nimport geemap.core as geemap\n```\n\n### Colab (Python)\n\n```python\n# Construct projections.\n# Printing the projection will show the EPSG code if it is a direct match.\n#\n# e.g. You will see this for the string 'EPSG:3857'\n# type: Projection\n# crs: EPSG:3857\n# transform: [1,0,0,0,1,0]\n\nprint(ee.Projection('EPSG:3857').getInfo()) # https://epsg.io/3857\nprint(ee.Projection('EPSG:4326').getInfo()) # https://epsg.io/4326\n\n# WKT projection description for https://epsg.io/27572\nproj = ee.Projection(\n 'PROJCS[\"NTF (Paris) / Lambert zone II\", ' +\n ' GEOGCS[\"NTF (Paris)\", ' +\n ' DATUM[\"Nouvelle Triangulation Francaise (Paris)\", ' +\n ' SPHEROID[\"Clarke 1880 (IGN)\", 6378249.2, 293.4660212936269,'+\n ' AUTHORITY[\"EPSG\",\"7011\"]], ' +\n ' AUTHORITY[\"EPSG\",\"6807\"]], ' +\n ' PRIMEM[\"Paris\", 2.5969213, AUTHORITY[\"EPSG\",\"8903\"]], ' +\n ' UNIT[\"grade\", 0.015707963267948967], ' +\n ' AXIS[\"Geodetic longitude\", EAST], ' +\n ' AXIS[\"Geodetic latitude\", NORTH], ' +\n ' AUTHORITY[\"EPSG\",\"4807\"]], ' +\n ' PROJECTION[\"Lambert_Conformal_Conic_1SP\", AUTHORITY[\"EPSG\",\"9801\"]], ' +\n ' PARAMETER[\"central_meridian\", 0.0], ' +\n ' PARAMETER[\"latitude_of_origin\", 52.0], ' +\n ' PARAMETER[\"scale_factor\", 0.99987742], ' +\n ' PARAMETER[\"false_easting\", 600000.0], ' +\n ' PARAMETER[\"false_northing\", 2200000.0], ' +\n ' UNIT[\"m\", 1.0], ' +\n ' AXIS[\"Easting\", EAST], ' +\n ' AXIS[\"Northing\", NORTH], ' +\n ' AUTHORITY[\"EPSG\",\"27572\"]]')\nprint(proj.getInfo()) # crs: EPSG:27572\n```"]]
