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Returns the length of the perimeter of the polygonal parts of the geometry of a given feature. The perimeter of multi geometries is the sum of the perimeters of their components.
Usage
Returns
Feature.perimeter(maxError,proj)
Float
Argument
Type
Details
this:feature
Element
The feature from which the geometry is taken.
maxError
ErrorMargin, default: null
The maximum amount of error tolerated when performing any necessary reprojection.
proj
Projection, default: null
If specified, the result will be in the units of the coordinate system of this projection. Otherwise it will be in meters.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2023-10-06 UTC."],[[["\u003cp\u003eThe \u003ccode\u003eperimeter()\u003c/code\u003e function calculates the total length of the outer boundary of a feature's geometry.\u003c/p\u003e\n"],["\u003cp\u003eIt works with both single and multipart geometries, summing individual perimeters for the latter.\u003c/p\u003e\n"],["\u003cp\u003eResults are typically in meters but can be returned in the units of a specified projection using the \u003ccode\u003eproj\u003c/code\u003e argument.\u003c/p\u003e\n"],["\u003cp\u003eAn optional \u003ccode\u003emaxError\u003c/code\u003e argument controls the acceptable error during reprojection if necessary.\u003c/p\u003e\n"]]],["Calculates the total perimeter length of a feature's polygonal geometry. For multi-geometries, it sums the perimeters of each component. The function `perimeter()` takes an optional `maxError` to control reprojection accuracy and a `proj` argument to specify the output's units (defaulting to meters). It returns a floating-point number representing the perimeter length. The `feature` is the target for calculation.\n"],null,["# ee.Feature.perimeter\n\nReturns the length of the perimeter of the polygonal parts of the geometry of a given feature. The perimeter of multi geometries is the sum of the perimeters of their components.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|----------------------------------------------|---------|\n| Feature.perimeter`(`*maxError* `, `*proj*`)` | Float |\n\n| Argument | Type | Details |\n|-----------------|----------------------------|----------------------------------------------------------------------------------------------------------------------------|\n| this: `feature` | Element | The feature from which the geometry is taken. |\n| `maxError` | ErrorMargin, default: null | The maximum amount of error tolerated when performing any necessary reprojection. |\n| `proj` | Projection, default: null | If specified, the result will be in the units of the coordinate system of this projection. Otherwise it will be in meters. |"]]
