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Enclose Multipatch

  • Summary
  • Usage
  • Syntax
  • Code sample
  • Environments
  • Licensing information

Summary

Creates closed multipatch features in the output feature class using the features of the input multipatch.

Usage

  • Use this tool for multipatch features that were designed to be closed but have geometric gaps that keep them open, such as buildings.

  • All multipatch features will be evaluated to determine which ones are closed. Features that are already closed will be copied to the output multipatch.

  • The Is Closed 3D tool can be used to determine whether a multipatch feature class contains any unclosed features.

  • This tool is a 3D set operator that provides analytical functions on 3D features. See Working with 3D set operators for more information on what set operators are and how to use them.

Syntax

EncloseMultipatch_3d (in_features, out_feature_class, {grid_size})
ParameterExplanationData Type
in_features

The multipatch features that will be used to construct closed multipatches.

Feature Layer
out_feature_class

The output closed multipatch features.

Feature Class
grid_size
(Optional)

The resolution that will be used to construct the closed multipatch features. This value is defined using the linear units of the input feature's spatial reference.

Double

Code sample

EncloseMultipatch example 1 (Python window)

The following sample demonstrates the use of this tool in the Python window.

import arcpy
from arcpy import env

arcpy.CheckOutExtension('3D')
env.workspace = 'C:/data'
arcpy.EncloseMultiPatch_3d('unclosed_features.shp', 
                          'enclosed_features.shp', 0.5)
EncloseMultipatch example 2 (stand-alone script)

The following sample demonstrates the use of this tool in a stand-alone Python script.

'''*********************************************************************
Name: Model Shadows For GeoVRML Models
Description: Creates a model of the shadows cast by GeoVRML models 
             imported to a multipatch feature class for a range of dates
             and times. A range of times from the start time and end 
             time can also be specified by setting the EnforceTimes 
             Boolean to True. This sample is designed to be used in a 
             script tool.
*********************************************************************'''
# Import system modules
import arcpy
from datetime import datetime, time, timedelta

#*************************  Script Variables  **************************
inFiles = arcpy.GetParameterAsText(0) # list of input features
spatialRef = arcpy.GetParameterAsText(1) # list of GeoVRML files
outFC = arcpy.GetParameterAsText(2) # multipatch from 3D files
inTimeZone = arcpy.GetParameterAsText(3) # time zone
startDate = arcpy.GetParameter(4) # starting date as datetime
endDate = arcpy.GetParameter(5) # ending date as datetime
dayInterval = arcpy.GetParameter(6) # day interval as long (0-365)
minInterval = arcpy.GetParameter(7) # minute interval as long (0-60)
enforceTime = arcpy.GetParameter(8) # minute interval as Boolean
outShadows = arcpy.GetParameterAsText(9) # output shadow models
outIntersection = arcpy.GetParameterAsText(10) # shadow & bldg intersection

# Function to find all possible date/time intervals for shadow modelling
def time_list():
    dt_result = [startDate]
    if dayInterval:
        if endDate: #Defines behavior when end date is supplied
            while startDate < endDate:
                startDate += timedelta(days=dayInterval)
                dt_result.append(startDate)
            dt_result.append(endDate)
        else: # Behavior when end date is not given
            daymonthyear = datetime.date(startDate)
            while startDate <= datetime(daymonthyear.year, 12, 31, 23, 59):
                startDate += timedelta(days=dayInterval)
                dt_result.append(startDate)
    return dt_result

try:
    arcpy.CheckOutExtension('3D')
    importFC = arcpy.CreateUniqueName('geovrml_import', 'in_memory')
    # Import GeoVRML files to in-memory feature
    arcpy.ddd.Import3DFiles(inFiles, importFC, 'ONE_FILE_ONE_FEATURE', 
                            spatialRef, 'Z_IS_UP', 'wrl')
    # Ensure that building models are closed
    arcpy.ddd.EncloseMultiPatch(importFC, outFC, 0.05)
    # Discard in-memory feature
    arcpy.management.Delete(importFC)
    dt_result = time_list()
    for dt in dt_result:
        if dt == dt_result[0]:
            shadows = outShadows
        else:
            shadows = arcpy.CreateUniqueName('shadow', 'in_memory')
        arcpy.ddd.SunShadowVolume(outFC, dt, shadows, 'ADJUST_FOR_DST', 
                                  inTimeZone, '', minInterval, 'MINUTES')
        if dt is not dt_result[0]:
            arcpy.management.Append(shadows, outShadows)
            arcpy.management.Delete(shadows)
    arcpy.ddd.Intersect3D(outFC, outIntersection, outShadows, 'SOLID')
    arcpy.CheckInExtension('3D')
except arcpy.ExecuteError:
    print arcpy.GetMessages()
except:
    # Get the traceback object
    tb = sys.exc_info()[2]
    tbinfo = traceback.format_tb(tb)[0]
    # Concatenate error information into message string
    pymsg = "PYTHON ERRORS:\nTraceback info:\n{0}\nError Info:\n{1}"\
          .format(tbinfo, str(sys.exc_info()[1]))
    msgs = "ArcPy ERRORS:\n {0}\n".format(arcpy.GetMessages(2))
    # Return python error messages for script tool or Python Window
    arcpy.AddError(pymsg)
    arcpy.AddError(msgs)

Environments

  • Current Workspace
  • Extent
  • Output Coordinate System
  • Geographic Transformations
  • Output CONFIG Keyword
  • Auto Commit
  • Output XY Domain
  • Output Z Domain

Licensing information

  • ArcGIS for Desktop Basic: Requires 3D Analyst
  • ArcGIS for Desktop Standard: Requires 3D Analyst
  • ArcGIS for Desktop Advanced: Requires 3D Analyst

Related topics

  • An overview of the 3D Features toolset
  • About 3D features
  • Fundamentals of geoprocessing with the ArcGIS 3D Analyst extension
  • Working with 3D set operators
  • How to import an existing 3D model into a multipatch feature class
  • Multipatches
  • Import 3D Files

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