PAPI Obstacle Clearance Surface (Aviation)

获得 Aviation Charting 许可后可用。

获得 Aviation Airports 许可后可用。

摘要

Creates a Precision Approach Path Indicator (PAPI) Obstacle Clearance Surface (OCS) based on the FAA Engineering Brief (EB) 95.

A PAPI OCS determines which objects are vertical obstructions. An object is considered a vertical obstruction if it penetrates the PAPI OCS. Surfaces are used to support planning and design activities.

使用情况

• 输入跑道要素参数必须启用 Z 值。

• This tool creates the obstruction identification surfaces (OIS) in an existing polygon or multipatch feature class. They can also be generated in an existing polygon shapefile. If a feature class is selected for Target OIS Features, it must have a vertical spatial reference.

• OIS tools are flexible and accept a variety of input and output feature class types. For more information, see the OIS Input and Output schemas.

• The Input Airport Control Point Feature parameter can be used to supply x-, y-, and z-geometry for displaced threshold features. If displaced thresholds are included, surfaces will be constructed based on their x-, y-, and z-geometry instead of their corresponding runway feature endpoint.

参数

对话框

标注	说明	数据类型
Input Runway Features	The input runway dataset. The feature class must be z-enabled and contain polylines.	Feature Layer
Target OIS Features	The target feature class that will contain the generated OIS.	Feature Layer
Runway Direction (可选)	Specifies the end of the runway where the approach surface will be created. High Runway End Designator— The approach surface will be created at the high end of the runway. This is the default Low Runway End Designator—The approach surface will be created at the low end of the runway.	String
Length (可选)	The length of the surface in miles. The default is 4.	Double
Divergence (可选)	The divergence of the surface in degrees. The default is 10.	Double
Slope (可选)	The slope of the surface in degrees. The default is 3.	Double
Distance From Threshold (可选)	The distance from the threshold in feet. The default is 700.	Double
Start Height (可选)	The start height of the surface in feet. The default is 35.	Double
Input Airport Control Point Feature (可选)	Supplies x-, y-, and z-geometry for displaced threshold features. If displaced thresholds are included, surfaces will be constructed based on their x-, y-, and z-geometry instead of their corresponding runway feature endpoint.	Feature Layer

派生输出

标注	说明	数据类型
Output OIS Features	The updated feature class containing the generated obstruction identification surface.	Feature Layer

Python

arcpy.aviation.PAPIObstacleClearanceSurface(in_features, target, {runway_direction}, {length}, {divergence}, {slope}, {distance_from_threshold}, {start_height}, {airport_control_point_feature_class})

名称	说明	数据类型
in_features	The input runway dataset. The feature class must be z-enabled and contain polylines.	Feature Layer
target	The target feature class that will contain the generated OIS.	Feature Layer
runway_direction (可选)	Specifies the end of the runway where the approach surface will be created. HIGH_RUNWAY_END_DESIGNATOR— The approach surface will be created at the high end of the runway. This is the default LOW_RUNWAY_END_DESIGNATOR—The approach surface will be created at the low end of the runway.	String
length (可选)	The length of the surface in miles. The default is 4.	Double
divergence (可选)	The divergence of the surface in degrees. The default is 10.	Double
slope (可选)	The slope of the surface in degrees. The default is 3.	Double
distance_from_threshold (可选)	The distance from the threshold in feet. The default is 700.	Double
start_height (可选)	The start height of the surface in feet. The default is 35.	Double
airport_control_point_feature_class (可选)	Supplies x-, y-, and z-geometry for displaced threshold features. If displaced thresholds are included, surfaces will be constructed based on their x-, y-, and z-geometry instead of their corresponding runway feature endpoint.	Feature Layer

派生输出

名称	说明	数据类型
derived_outfeatureclass	The updated feature class containing the generated obstruction identification surface.	Feature Layer

代码示例

PAPIObstacleClearanceSurface example (stand-alone script)

The following Python script demonstrates how to use the PAPIObstacleClearanceSurface function.

import arcpy

arcpy.CheckOutExtension("Airports")

# Input Runway Feature Class
inFeatures = r"C:\data\ois.gdb\RunwayCenterline"

# Feature class that will contain the OIS surface
outFeatures= r"C:\data\ois.gdb\ObstructionIdSurface"

# Define surface dimensions
runway = "HIGH_RUNWAY_END_DESIGNATOR"
length = 4
divergence = 10
slope = 3
distance_from_threshold = 700
start_height = 35

# Generate PAPI Obstacle Clearance Surface
arcpy.aviation.PAPIObstacleClearanceSurface(inFeatures, outFeatures, runway,
                                            length, divergence, slope,
                                            distance_from_threshold, start_height)

arcpy.CheckInExtension("Airports")

环境

此工具不使用任何地理处理环境。

许可信息

• Basic: 否
• Standard: 需要 Airports or ArcGIS Aviation Charting
• Advanced: 需要 Airports or ArcGIS Aviation Charting