ArcMap

Calculate Vertical Obstruction Elevations

Summary

Adds HGT and ZVH fields and calculates ZVH fields in Vertical Obstruction feature classes. This tool's elevation values are derived from a DEM.

Usage

  • This tool is designed to work with Multinational Geospatial Co-production Program (MGCP) and Topographic Data Store (TDS) Vertical Obstruction feature classes.

  • If the feature has a valid HGT field, the tool will calculate the ZVH field by adding the HGT field value to the base elevation derived from the DEM.

  • If the tool adds ZVH, and the feature has a valid HGT, the tool will calculate ZVH by adding the HGT to the base elevation derived from the DEM.

  • Some features, like the DB150 in MGCP, will have ZVH calculated using only the base elevation from the DEM.

  • This tool supports the following MGCP feature classes: AgristrA, AgristrP, AquedctA, AquedctL, BarrierL, BridgeL, BuildA, BuildP, CommP, DamA, DamL, DamP, DangerP, DisposeA, EmbankA, EmbankL, FortA, FortP, IndL, LockL, LandmrkA, LandmrkL, LandmrkP, MiscaeroP, MiscL, MiscP, MtnP, ObstrP, PipeL, PowerL, RigwellP, RunwayL, StorageA, StorageP, TeleL, TowerP, and UtilP.

  • This tool supports the following TDS feature classes: StructurePnt, StructureCrv, StructureSrf, TransportationGroundCrv, TransportationGroundSrf, TransportationGroundPnt, RecreationSrf, RecreationCrv, RecreationPnt, IndustrySrf, IndustryPnt, UtilityInfrastructurePnt, and AeronauticPnt.

Syntax

arcpy.defense.CalculateVerticalObstructionElevations(Input_Geodatabase, Geodatabase_Type, Input_DEM)
ParameterExplanationData Type
Input_Geodatabase

Input geodatabase with vertical obstruction features.

Workspace
Geodatabase_Type

Schema of the geodatabase.

  • MGCP —Geodatabase with Multinational Geospatial Co-production Program (MGCP) schema. This is the default.
  • TDS —Geodatabase with Topographic Data Store (TDS) schema.
String
Input_DEM

Input raster from which the elevation for the vertical obstruction features is derived.

Raster Layer

Derived Output

NameExplanationData Type
Output_Geodatabase

Workspace

Code sample

CalculateVerticalObstructionElevations example (stand-alone script)

The following code example demonstrates how to execute the CalculateVerticalObstructionElevations tool.

# Importing necessary modules
from arcpy import defense, CheckOutExtension, CheckInExtension

# Checking out Defense Mapping extension
CheckOutextension('defense')

# Setting parameters
input_geodatabase = r'C:\data\MGCP_TRD_4_2.gdb'
input_raster = r'C:\data\Monterey.DT2'

# Calling Unpack Product Files tool
defense.CalculateVerticalObstructionElevations(input_geodatabase, "MGCP", input_raster)

# Checking in Defense Mapping extension
CheckInExtension('defense')

Environments

Licensing information

  • Basic: No
  • Standard: Requires Defense Mapping
  • Advanced: Requires Defense Mapping

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