[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-09-19 UTC."],[[["\u003cp\u003e\u003ccode\u003erotate()\u003c/code\u003e is a method applied to a Kernel object to rotate its weights matrix by a specified number of 90-degree turns.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003erotations\u003c/code\u003e argument accepts an integer, with positive values indicating clockwise rotations and negative values indicating counterclockwise rotations.\u003c/p\u003e\n"],["\u003cp\u003eRotating a kernel changes the direction in which the kernel is applied, impacting the output of image processing operations.\u003c/p\u003e\n"],["\u003cp\u003eThe examples provided demonstrate how to rotate a Sobel kernel by 90 degrees clockwise, and by 180 degrees (two 90-degree turns counterclockwise).\u003c/p\u003e\n"]]],[],null,["# ee.Kernel.rotate\n\nCreates a Kernel.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|----------------------------|---------|\n| Kernel.rotate`(rotations)` | Kernel |\n\n| Argument | Type | Details |\n|----------------|---------|----------------------------------------------------------------------------------|\n| this: `kernel` | Kernel | The kernel to be rotated. |\n| `rotations` | Integer | Number of 90 degree rotations to make. Negative numbers rotate counterclockwise. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// A kernel to be rotated.\nvar sobelKernel = ee.Kernel.sobel();\nprint(sobelKernel);\n\n/**\n * Output weights matrix\n *\n * [-1, 0, 1]\n * [-2, 0, 2]\n * [-1, 0, 1]\n */\n\nprint('One 90 degree clockwise rotation', sobelKernel.rotate(1));\n\n/**\n * [-1, -2, -1]\n * [ 0, 0, 0]\n * [ 1, 2, 1]\n */\n\nprint('Two 90 degree counterclockwise rotations', sobelKernel.rotate(-2));\n\n/**\n * [1, 0, -1]\n * [2, 0, -2]\n * [1, 0, -1]\n */\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\nfrom pprint import pprint\n\n# A kernel to be rotated.\nsobel_kernel = ee.Kernel.sobel()\npprint(sobel_kernel.getInfo())\n\n# Output weights matrix\n\n# [-1, 0, 1]\n# [-2, 0, 2]\n# [-1, 0, 1]\n\nprint('One 90 degree clockwise rotation:')\npprint(sobel_kernel.rotate(1).getInfo())\n\n# [-1, -2, -1]\n# [ 0, 0, 0]\n# [ 1, 2, 1]\n\nprint('Two 90 degree counterclockwise rotations:')\npprint(sobel_kernel.rotate(-2).getInfo())\n\n# [1, 0, -1]\n# [2, 0, -2]\n# [1, 0, -1]\n```"]]
