TimeMultipleDays
摘要
Defines a multiple day time period within a given year to perform solar calculations. A year, start day, and end day are specified.
讨论
This object can be used in the following tools: Area Solar Radiation, Points Solar Radiation, and Solar Radiation Graphics.
For multi-day time configurations, the maximum range of days is a total of one year (365 days, or 366 days for leap years). If the startDay is greater than the endDay, the time calculations will proceed into the following year. For example, [startDay, endDay] = [365, 31], represents December 31 to January 31 of the following year. In the example of [1, 2], the time is inclusive for the first day from 0:00 hours (January 1) to 0:00 (January 2). The startDay and endDay cannot be equal.
Specify the startDay, year, and endDay for a year interval. When the endDay is smaller than the startDay, the endDay is considered to be in the following year. This is the default time configuration.
语法
参数 | 说明 | 数据类型 |
year |
The Julian year. (默认值为 the current Julian year) | Long |
startDay |
The startDay is the first Julian day in the analysis. (默认值为 5, which is January 5th) | Long |
endDay |
The endDay is the last Julian day in the analysis. (默认值为 160, which is June 9th or 10th, depending if the year is a leap year) | Long |
属性
属性 | 说明 | 数据类型 |
year (可读写) |
The Julian year. | Long |
startDay (可读写) |
The startDay is the first Julian day in the analysis. | Long |
endDay (可读写) |
The endDay is the last Julian day in the analysis. | Long |
代码示例
Demonstrates how to create a TimeMultipleDays class and use it in the AreaSolarRadiation tool within the Python window.
import arcpy from arcpy import env from arcpy.sa import * env.workspace = "C:/sapyexamples/data" myTimeMultiDay = TimeMultipleDays(1980, 216, 244) outAreaSolar = AreaSolarRadiation("solar_dem", "", "", myTimeMultiDay) outAreaSolar.save("C:/temp/solarouttmd")
Calculates the incoming solar radiation with the AreaSolarRadiation tool using the TimeMultipleDays class.
# Name: TimeMultipleDays_Ex_02.py # Description: Execute AreaSolarRadiation using the TimeMultipleDays object. # Requirements: Spatial Analyst Extension # Import system modules import arcpy from arcpy import env from arcpy.sa import * # Set environment settings env.workspace = "C:/sapyexamples/data" # Set local variables inRaster = "solar_dem" # Create TimeMultipleDays Object year = 2004 startDay = 5 endDay = 6 myTimeMultiDay = TimeMultipleDays(year, startDay, endDay) # Check out the ArcGIS Spatial Analyst extension license arcpy.CheckOutExtension("Spatial") # Execute AreaSolarRadiation using TimeMultipleDays Object outAreaSolar = AreaSolarRadiation(inRaster, "", 200, myTimeMultiDay, 14, 0.5, "NOINTERVAL", 1, "FROM_DEM", 32, 8, 8, "UNIFORM_SKY", 0.3, 0.5) # Save the output outAreaSolar.save("C:/sapyexamples/output/areasolartmd2")