Cadastralឧបករណ៍ដំណើរការ

Network Builder

បង្កើតក្រាបភ្ជាប់គ្នាពីស្រទាប់ក្បាលដី ដោយបង្កើត feature class node នៅជ្រុង, feature class edge តាមព្រំដែន និងតារាងជាប់គ្នាភ្ជាប់ក្បាលដី។

រកឃើញនៅឯណា
KGA Toolbox ▸ Geoprocessing ▸ Cadastral Tools ▸ Network Builder

ទិដ្ឋភាពទូទៅ

Where Parcel Adjacency answers "which parcels touch", this tool produces the full topological structure — the corners, the boundary segments between them, and the parcel relationships — as three related datasets.

ការប្រើប្រាស់

  • Three datasets are written into Output Workspace, named by the three name parameters:
DatasetDefault nameContents
NodesParcelNodesPoints at the parcel corners
EdgesParcelEdgesLines along the parcel boundaries
Adjacency tableParcelAdjacencyParcel-to-parcel relationships
  • Snap Tolerance defaults to 0.01 and is the critical parameter. Corners of adjacent parcels are almost never numerically identical; the tolerance decides how close is close enough to be treated as one node. Set it just above the coordinate scatter in the data. For clean survey data 0.01 metres is appropriate; for digitised legacy mapping a larger value may be necessary.
    • Too small — corners that should coincide become separate nodes and the graph is disconnected.
    • Too large — genuinely distinct corners collapse into one node and parcels appear adjacent when they are not.
  • Input Parcel Layer accepts polygon layers only, and must use a projected coordinate system so the snap tolerance is a ground distance.
  • The three output names must not collide with existing datasets in the output workspace.

ប៉ារ៉ាម៉ែត្រ

Parameters for Network Builder
ឈ្មោះប្រភេទទិន្នន័យការពិពណ៌នា
Input Parcel LayerFeature Layer

The parcel layer to convert into a graph. Polygon geometry only.

Parcel ID FieldField

The field identifying each parcel, carried into the edges and adjacency table.

Output WorkspaceWorkspace; Feature Dataset

The geodatabase or feature dataset that receives the three outputs.

Snap ToleranceDouble

The distance within which nearby corners are treated as a single node, in the layer's coordinate system units. Default is 0.01.

Output Nodes Nameជម្រើសString

The name of the node feature class. Default is ParcelNodes.

Output Edges Nameជម្រើសString

The name of the edge feature class. Default is ParcelEdges.

Output Adjacency Table Nameជម្រើសString

The name of the adjacency table. Default is ParcelAdjacency.

Derived Output

Parameters for Network Builder — Derived Output
ឈ្មោះប្រភេទទិន្នន័យការពិពណ៌នា
Output Nodes FCFeature Layer

The generated node feature class.

Output Edges FCFeature Layer

The generated edge feature class.

Output Adjacency TableTable

The generated adjacency table.

របៀបប្រើ

  1. Confirm the parcel layer uses a projected coordinate system.
  2. On the KGA Toolbox tab, in the Geoprocessing group, open the Cadastral Tools gallery and click Network Builder.
  3. Set Input Parcel Layer and Parcel ID Field.
  4. Set Output Workspace.
  5. Set Snap Tolerance. Keep 0.01 for clean survey data; increase it for digitised legacy mapping.
  6. Accept the three default output names, or change them if the workspace already holds datasets with those names.
  7. Click Run.
  8. Inspect the node layer. Clusters of several nodes where one corner should be indicate the snap tolerance is too small — raise it and run again.

ព័ត៌មានអាជ្ញាបណ្ណ

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

មើលផងដែរ

ត្រឡប់ទៅឯកសារណែនាំ