插值 Shape (3D 分析)
插图
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用法
语法
| 参数 | 说明 | 数据类型 |
in_surface |
The raster, TIN, or terrain surface used for interpolating z-values. | Raster Layer; Terrain Layer; TIN Layer |
in_feature_class |
The input feature class. | Feature Layer |
out_feature_class |
The output feature class. | Feature Class |
sample_distance （可选） |
用于内插 z 值的间距。默认情况下，该参数是栅格的像元大小或 TIN 的自然增密。 | Double |
z_factor （可选） |
The factor by which elevation values will be multiplied. This is typically used to convert Z linear units that match those of the XY linear units. The default is 1, which leaves elevation values unchanged. | Double |
method （可选） |
用来确定输出要素的高程值的插值方法。可用选项取决于正在使用的表面类型。BILINEAR 插值可用于栅格表面，查询点根据在四个最邻近的像元中找到的值获取其高程。Terrain 和 TIN 数据集提供以下选项：
| String |
vertices_only （可选） |
指定是否仅沿输入要素的折点进行插值，从而忽略采样距离选项。
| Boolean |
pyramid_level_resolution （可选） |
The z-tolerance or window size resolution of the terrain pyramid level that will be used by this tool. The default is 0, or full resolution. | Double |
代码示例
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.InterpolateShape_3d("my_tin", "roads.shp", "roads_interp.shp")
The following sample demonstrates the use of this tool in a stand-alone Python script:
'''*********************************************************************
Name: InterpolateShape Example
Description: This script demonstrates how to use InterpolateShape
on all 2D features in a target workspace.
*********************************************************************'''
# Import system modules
import arcpy
from arcpy import env
import exceptions, sys, traceback
# Set local variables
inWorkspace = arcpy.GetParameterAsText(0)
surface = arcpy.GetParameterAsText(1)
try:
arcpy.CheckOutExtension("3D")
# Set default workspace
env.workspace = inWorkspace
# Create list of feature classes in target workspace
fcList = arcpy.ListFeatureClasses()
if fcList:
for fc in fcList:
desc = arcpy.Describe(fc)
# Find 2D features
if not desc.hasZ:
# Set Local Variables
outFC = "{0}_3D.shp".format(desc.basename)
method = "BILINEAR"
# Execute InterpolateShape
arcpy.ddd.InterpolateShape(surface, fc, outFC,
10, 1, method, True)
else:
print "{0} is not a 2D feature.".format(fc)
else:
print "No feature classes were found in {0}.".format(env.workspace)
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)