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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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2023-10-06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."],[[["The `perimeter()` function calculates the total length of the outer boundary of a feature's geometry."],["It works with both single and multipart geometries, summing individual perimeters for the latter."],["Results are typically in meters but can be returned in the units of a specified projection using the `proj` argument."],["An optional `maxError` argument controls the acceptable error during reprojection if necessary."]]],["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"]]