Spatial Analysisឧបករណ៍ដំណើរការ

From Reference Point Direction Calculation

គណនាចម្ងាយ និង bearing ពីចំណុចយោងមួយដែលបានជ្រើស ទៅចំណុចផ្សេងទៀតទាំងអស់ក្នុងស្រទាប់ដដែល ដោយសរសេរលទ្ធផលទៅតារាងដាច់ដោយឡែក។

រកឃើញនៅឯណា
KGA Toolbox ▸ Spatial Analysis ▸ Spatial Analysis ▸ From Reference Point Direction Calculation

ទិដ្ឋភាពទូទៅ

Use this tool for radial survey work — setting out from a single control point, or reporting the direction and distance of a set of features relative to a datum mark.

ការប្រើប្រាស់

Exactly one point must be selected in the map before the tool runs. That selected point is the reference. The tool raises an error if nothing is selected, or if more than one point is selected.

  • Bearings are reported in three forms at once, so the output table suits both engineering and legal-description workflows:
    • BearingDeg — decimal degrees
    • BearingDMS — degrees, minutes, seconds
    • QBearing — quadrant bearing (for example, N 45° 30′ 00″ E)
  • The output table is overwritten. If a table already exists at the Output table path, it is deleted and recreated.
  • Distances are computed in the point layer's own coordinate system units. Run the tool on a projected layer; distances taken from a geographic coordinate system are expressed in degrees and are not meaningful as ground distance.
  • Only point layers are accepted in Input point layer.

ប៉ារ៉ាម៉ែត្រ

Parameters for From Reference Point Direction Calculation
ឈ្មោះប្រភេទទិន្នន័យការពិពណ៌នា
Input point layerFeature Layer

The point layer containing both the reference point and the target points. Point geometry only. One feature must be selected in the map to act as the reference.

Output tableTable

The standalone table that receives the results. An existing table at this path is deleted and replaced.

Select fieldField

The identifier field used to label the reference point and each target point in the output table.

Output table schema

FieldTypeExplanation
RefValueText (100)The Select field value of the reference point
TargetValueText (100)The Select field value of the target point
DistanceDoubleDistance from reference to target, in the layer's coordinate system units
BearingDegDoubleBearing in decimal degrees
BearingDMSText (50)Bearing in degrees, minutes, seconds
QBearingText (80)Quadrant bearing
DirectionText (10)Cardinal or quadrant direction code
RefX, RefYDoubleCoordinates of the reference point
TargetX, TargetYDoubleCoordinates of the target point

របៀបប្រើ

  1. Add the point layer to the map and confirm it uses a projected coordinate system.
  2. Using the Select tool, click the single point that will serve as the reference. Confirm the Contents pane reports one selected feature.
  3. On the KGA Toolbox tab, in the Spatial Analysis group, open the Spatial Analysis menu and click From Reference Point Direction Calculation.
  4. Set Input point layer to the layer holding the selection.
  5. Set Output table to the table to create.
  6. Set Select field to the point identifier field — typically a point number or name.
  7. Click Run. One row is written per target point.

ព័ត៌មានអាជ្ញាបណ្ណ

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

មើលផងដែរ

ត្រឡប់ទៅឯកសារណែនាំ