VCS

サマリー

The VCS class provides information about the vertical coordinate system component of a SpatialReference object.

ディスカッション

Spatial references are comprised of a coordinate system and storage and processing parameters (tolerances and resolution settings). A vertical coordinate system may also be included, containing information about the z- (or vertical) coordinates. For example, a point has a z-value of 100.0, but without knowing its vertical coordinate system information, you may have the following questions:

• 100.0 from what? What is at 0.0?

• 100.0 in what units? Meters, feet, miles?

• 100.0 in which direction from 0.0?

プロパティ

名前	説明	データ タイプ
datumName (読み取り/書き込み)	The name of the vertical coordinate system's datum.	String
direction (読み取り/書き込み)	The positive direction of the z coordinates; 1 is upward, -1 is downwards(in the direction of gravity).	Integer
factoryCode (読み取り/書き込み)	The factory code or WKID of the vertical coordinate system.	Integer
linearUnitName (読み取り/書き込み)	The name of the linear units.	String
metersPerUnit (読み取り/書き込み)	The meters per linear unit.	Double
name (読み取り/書き込み)	The name of the vertical coordinate system.	String
verticalShift (読み取り/書き込み)	The vertical shift of the vertical coordinate system.	Double

コードのサンプル

import arcpy

# Create a Spatial Reference (Europe Equidistant Conic) with a vertical coordinate system (EVRF_2007)
sr = arcpy.SpatialReference(102031, 5621)

# Use the SpatialReference as input to a tool
out = arcpy.management.CreateFeatureDataset(outgdb, "euro_fds", sr)

# Describe the output to confirm the vertical coordinate system factoryCode
sr = arcpy.Describe(out[0]).spatialReference
print(sr.VCS.factoryCode)  # prints 5621