ICAO Annex 14 (Aviation OIS)
Récapitulatif
Creates obstruction identification surfaces based on the ICAO Annex 14 specification. These surfaces define areas of airspace around an aerodrome. Each area defines the limits to which an obstruction may project into an airspace. The type, function, and dimension of a surface differ by runway classification. This tool creates surfaces as polygon or multipatch features, or triangulated irregular networks (TINs).
Utilisation
The Input Runway Features must be Z enabled.
The selection you make in Runway Classification will automatically populate most of the surface parameters.
This tool creates the OIS in an existing polygon or multipatch feature class. It can also be generated as a new TIN or polygon shapefile. If a feature class is selected for Output Features, it must have a vertical spatial reference.
Syntaxe
Paramètre | Explication | Type de données |
in_features |
The input runway dataset. The feature class must be Z enabled and contain points, polylines, or polygons. | Feature Layer |
runway_type | The runway classification of the in_features.
| String |
highend_clear_way_length |
The length of the area at the high end of the runway, in meters. An aircraft can make a portion of its initial climb over this area. | Double |
lowend_clear_way_length |
The length of the area at the low end of the runway, in meters. An aircraft can make a portion of its initial climb over this area. | Double |
airport_elevation |
The highest point on any runway in an airport, in meters. The units for elevation are based on the specification. The tool will automatically populate this value from a z value in your aeronautical database if you are using the AIS or Airports data model. Airport elevation is stored in the Z value of the ADHP point feature class in the AIS data model. In the Airports data model, elevation is stored in the Z value of the Airport Control Point feature class for records with the Point_Type field populated with AIRPORT_ELEVATION. | Double |
runway_direction | The direction of in_features.
| String |
include_merged_surface |
Indicates whether merged horizontal and conical surfaces are included in the OIS, in addition to the regular surfaces.
| Boolean |
out_features |
The output feature class or TIN that will contain the generated obstacle identification surfaces. | Feature Layer; TIN |
Exemple de code
The following Python window script demonstrates how to use the ICAOAnnex14 tool.
import arcpy
# set gp environment
arcpy.env.workspace="c:/data/ois.gdb"
arcpy.CheckOutExtension("Aeronautical")
# Input Runway Feature Class
inFeatures = "RunwayCenterline"
# feature class that will contain the OIS surface
outFeatureClass="ObstructionIdSurface"
# runway variables
runway = "NON_INSTRUMENT_CODE_NUMBER_1"
runwayDir = "HIGH_END_TO_LOW_END"
# Exec ICAOAnnex14
arcpy.ICAOAnnex14_aviationois(inFeatures,runway,10,0,100,runwayDir,
"INCLUDE_MERGED_SURFACE",outFeatureClass)