Geoprocessingឧបករណ៍ដំណើរការ

Multi Ring Buffer

បង្កើត buffer ជារង្វង់រួមកណ្តាលជាបន្តបន្ទាប់ជុំវិញលក្ខណៈបញ្ចូល ដោយចម្ងាយរង្វង់អាចស្មើគ្នា ឬរាយច្បាស់លាស់។

រកឃើញនៅឯណា
KGA Toolbox ▸ Spatial Analysis ▸ Spatial Analysis ▸ Coverage Tools ▸ Multi Ring Buffer

ទិដ្ឋភាពទូទៅ

Use this tool for distance-band analysis — proximity zones around a road, service catchments around a facility, or setback bands around a protected area.

ការប្រើប្រាស់

  • Buffer Distance Type decides where the buffer distance comes from:
    • Linear Unit — a single distance typed into Buffer Distance, applied to every feature.
    • Field — a per-feature distance read from the field named in Choose Field. Use this when each feature has its own buffer width.
  • Ring spacing is controlled by Equal ring interval?:
    • Checked — Rings are spaced evenly. Number of ring and Buffer Distance together determine the spacing.
    • Unchecked — Supply the ring distances explicitly in Specify ring interval, as a list of values.
  • Dissolve Type determines how overlapping rings are handled: For distance-band analysis where each band must be counted once, choose a dissolve option — otherwise overlapping rings double-count area.
ChoiceEffect
No Dissolve (default)Every ring of every feature is kept as a separate polygon; rings from neighbouring features overlap
Dissolve all output features into a single featureAll rings merge into one multipart polygon
Dissolve features using the listed fields' unique values or combination of valuesRings merge per unique attribute value
  • Side Type (for line input) and End Type (for line input) apply only when the input is a line layer and are ignored for point and polygon inputs.
    • Side Type — FULL buffers both sides, LEFT and RIGHT buffer one side, OUTSIDE_ONLY excludes the area inside the input polygon.
    • End Type — FLAT squares off the line ends; ROUND caps them with a semicircle.

ប៉ារ៉ាម៉ែត្រ

Parameters for Multi Ring Buffer
ឈ្មោះប្រភេទទិន្នន័យការពិពណ៌នា
Input FeatureFeature Layer

The layer to buffer. Points, lines, or polygons.

Output Buffered FeatureFeature Class

The buffer ring feature class to create.

Buffer Distance TypeString

Where buffer distances come from.

  • Linear Unit — one distance for all features, from Buffer Distance
  • Field — a per-feature distance, from Choose Field
Number of ringLong

How many concentric rings to create.

Equal ring interval?ជម្រើសBoolean

Selects even or explicit ring spacing.

  • Checked — Rings are spaced evenly.
  • Unchecked — Ring distances are listed in Specify ring interval.
Specify ring intervalជម្រើសString

The explicit ring distances. Used when Equal ring interval? is unchecked.

Buffer Distanceជម្រើសLinear Unit

The buffer distance and its unit. Used when Buffer Distance Type is Linear Unit. Default is 0 Meters.

Choose Fieldជម្រើសField

The field holding the per-feature buffer distance. Used when Buffer Distance Type is Field. Long, short, float, double, or text.

Dissolve Typeជម្រើសString

How overlapping rings are combined. Default is No Dissolve.

  • No Dissolve
  • Dissolve all output features into a single feature
  • Dissolve features using the listed fields' unique values or combination of values
Side Type (for line input)ជម្រើសString

Which side of a line is buffered. Line input only.

  • FULL
  • LEFT
  • RIGHT
  • OUTSIDE_ONLY
End Type (for line input)ជម្រើសString

How line ends are capped. Line input only.

  • FLAT
  • ROUND

របៀបប្រើ

  1. On the KGA Toolbox tab, in the Spatial Analysis group, open the Spatial Analysis menu, point to Coverage Tools, and click Multi Ring Buffer.
  2. Set Input Feature and Output Buffered Feature.
  3. Set Buffer Distance Type:
    • For one distance across all features, choose Linear Unit and set Buffer Distance.
    • For per-feature distances, choose Field and set Choose Field.
  4. Set Number of ring.
  5. For evenly spaced rings, check Equal ring interval?. For specific distances, leave it unchecked and list them in Specify ring interval.
  6. If the bands will be used for area or count statistics, set Dissolve Type to a dissolve option so overlapping rings are not double-counted.
  7. For line input, set Side Type and End Type.
  8. Click Run.

ព័ត៌មានអាជ្ញាបណ្ណ

Requires an active KGA Toolbox license. The tool validates the license before running.

មើលផងដែរ

ត្រឡប់ទៅឯកសារណែនាំ