从 LAS 数据集移除文件 (Data Management)

许可等级:BasicStandardAdvanced

摘要

从 LAS 数据集移除一个或多个 LAS 文件和表面约束要素。

用法

语法

RemoveFilesFromLasDataset_management (in_las_dataset, {in_files}, {in_surface_constraints})
参数说明数据类型
in_las_dataset

输入 LAS 数据集。

LAS Dataset Layer
in_files
[in_files,...]
(可选)

LAS 文件或包含要从 LAS 数据集移除的 LAS 文件的文件夹。

Folder; File
in_surface_constraints
[in_surface_constraints,...]
(可选)

将从 LAS 数据集中移除的表面约束要素的名称。

String

代码实例

从 LAS 数据集移除文件 (RemoveFilesFromLasDataset) 示例 1(Python 窗口)

下面的示例演示了如何在 Python 窗口中使用此工具:

import arcpy
from arcpy import env

env.workspace = "C:/data"
arcpy.RemoveFilesFromLasDataset_management("test.lasd", 
                                           "LA_N; LA_S/LA_5S4E.las",
                                           "boundary.shp; streams.shp")
从 LAS 数据集移除文件 (RemoveFilesFromLasDataset) 示例 2(独立脚本)

下面的示例演示了如何在独立 Python 脚本中使用此工具:

'''*********************************************************************
Name: Modify Files in LAS Dataset& Calculate Stats for LASD
Description: Adds files & surface constraints to a LAS dataset, then 
             calculates statistics and generates report.
*********************************************************************'''
# Import system modules
import arcpy
from arcpy import env
import exceptions, sys, traceback

try:
    # Script variables
    env.workspace = 'C:/data'
    lasd = 'sample.lasd'
    oldLas = ['2006', '2007/file2.las']
    newLas = ['2007_updates_1', '2007_updates_2']
    oldSurfaceConstraints = ['boundary.shp', 'streams.shp']
    newSurfaceConstraints = [['sample.gdb/boundary', '<None>', 
                              'Soft_Clip']
                             ['sample.gdb/streams', 'Shape.Z', 
                              'Hard_Line']]
    arcpy.management.RemoveFilesFromLasDataset(lasd, oldLas, 
                                               oldSurfaceConstraints)
    arcpy.management.AddFilesToLasDataset(lasd, newLas, 'RECURSION', 
                                          newSurfaceConstraints)
    arcpy.management.LasDatasetStatistics(lasd, "UPDATED_FILES", 
                                          "lasd_stats.txt", 
                                          "LAS_FILE", "DECIMAL_POINT", 
                                          "SPACE", "LAS_summary.txt")
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)

环境

相关主题

许可信息

ArcGIS for Desktop Basic:需要 3D Analyst 或者 Spatial Analyst
ArcGIS for Desktop Standard:是
ArcGIS for Desktop Advanced:是
9/15/2013