删除 Terrain 点 (3D Analyst)
摘要
从参与 terrain 数据集的一个或多个要素中删除指定的感兴趣区域内的点。
用法
-
从嵌入要素类中删除点将使该 terrain 失效。请在删除点后运行构建 Terrain 工具。
如果 terrain 位于 SDE 中,则必须将其注册为版本。
语法
DeleteTerrainPoints_3d (in_terrain, data_source, polygon_features_or_extent)
参数 | 说明 | 数据类型 |
in_terrain |
输入 terrain 数据集。 | Terrain Layer |
data_source |
点将被移除的一个或多个要素类。 | String |
polygon_features_or_extent | 指定要从中移除点的区域。可使用面要素类或范围。 如果需要范围值,则使用 arcpy.Extent 对象。 | Feature Layer; Extent |
代码实例
DeleteTerrainPoints 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
arcpy.CheckOutExtension("3D")
env.workspace = "C:/data"
arcpy.DeleteTerrainPoints_3d("sample.gdb/featuredataset/terrain",
"mass_pts_embed", "1379938 235633 1382756 237681")
DeleteTerrainPoints 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: Delete Terrain Outliers
Description: Uses Locate Outliers to identify outlier points in
a terrain dataset, and eliminates the outliers from the
terrain with Delete Terrain Points.
**********************************************************************'''
# Import system modules
import arcpy
import exceptions, sys, traceback
from arcpy import env
try:
arcpy.CheckOutExtension('3D')
# Set Local Variables
env.workspace = 'C:/data'
terrain = 'test.gdb/featuredataset/sample_terrain'
terrainPt = 'elevation_pts' # name of terrain point data source
outliers = 'in_memory/outliers'
# Execute LocateOutliers
arcpy.ddd.LocateOutliers(terrain, outliers, 'APPLY_HARD_LIMIT', -10,
350, 'APPLY_COMPARISON_FILTER', 1.2, 120,
0.8, 8000)
# Execute Delete Terrain Points
arcpy.ddd.DeleteTerrainPoints(terrain, terrainPt, outliers)
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)
相关主题
许可信息
ArcGIS for Desktop Basic: 需要 3D Analyst
ArcGIS for Desktop Standard: 需要 3D Analyst
ArcGIS for Desktop Advanced: 需要 3D Analyst
5/10/2014