GP服务使用本地上传的文件进行分析

news2025/4/8 8:28:20

1、需求：

自己选择本地的文件上传在gp服务中进行分析，例如实现这个需求：

2、遇到的困境

发布创建TIN工具时要输入值表，但是我这里选择了本地的SHP文件和高程值后，发布出去就是一个常量值了，没法自己选择文件上传。如图：

3、解决思路

arcpy制作一个gp工具来发成gp服务。我看了创建tin的arcpy语法，里面的demo这一块有参数写法的介绍，如果将输入要素变成变量那就可以灵活的用自己的数据了。

4、最终实现的python代码：

提示：使用的python2需要注意中文字符支持问题。参考资料：python2 中文编码问题小结_python 2 汉字编码_up酱的博客-CSDN博客

# -*- coding: UTF-8 -*-
import os,os.path
import arcpy
import sys
import traceback
import zipfile
from os.path import isdir, join, normpath, split
reload(sys)
sys.setdefaultencoding("utf-8")

arcpy.env.overwriteOutput=True
#by gislaozhang---20230829
#基于要素创建TIN的类



# Function to unzipping the contents of the zip file
#
def unzip(path, zip):
    # If the output location does not yet exist, create it
    #
    # done
    if not isdir(path.decode('utf-8')):
        os.makedirs(path.decode('utf-8'))

    for each in zip.namelist():
        # arcpy.AddMessage("Extracting " + os.path.basename(each) + " ...")
        print "Extracting " + os.path.basename(each) + " ..."
        # Check to see if the item was written to the zip file with an
        # archive name that includes a parent directory. If it does, create
        # the parent folder in the output workspace and then write the file,
        # otherwise, just write the file to the workspace.
        #
        if not each.endswith('/'):
            # print each
            root, name = split(each)
            # print root
            directory = normpath(join(path, root))
            print directory
            if not isdir(directory.decode('utf-8').encode('gb2312')):
                os.makedirs(directory.decode('utf-8').encode('gb2312'))
            f = file(join(directory.decode('utf-8').encode('gb2312'), name), 'wb')
            f.write(zip.read(each))

def createTIN(inFeature,inHeightField,sr,outRaster,dataType,method,sampling,zfactor):
    try:
        arcpy.CheckOutExtension("3D")
        # Execute CreateTin
        arcpy.AddMessage("Creating TIN dataset...")
        tempData1 = arcpy.CreateScratchName(workspace=arcpy.env.scratchGDB)  # 使用scratchGDB管理临时数据
        # print tempData1
        result = arcpy.CreateTin_3d(tempData1, sr, "{0} {1}" \
                                    .format(inFeature, inHeightField).decode("utf-8"), "Delaunay")

        arcpy.TinRaster_3d(result, outRaster.decode("utf-8"), dataType,
                           method, sampling, zfactor)

        arcpy.AddMessage("Finished")
        arcpy.CheckInExtension("3D")

    except arcpy.ExecuteError:
        print arcpy.GetMessages()

def copyFeature(unzip_dir):
    arcpy.env.workspace = unzip_dir
    listfc = arcpy.ListFeatureClasses()
    tempData = arcpy.CreateScratchName(workspace=arcpy.env.scratchGDB)#使用scratchGDB管理临时数据
    for fc in listfc:
        print(fc)
        arcpy.CopyFeatures_management(fc, tempData)
    createTIN(tempData,inHeightField, sr, outRaster, dataType, method, sampling, zfactor)

# Set local variables
# infile = r"E:\等高线纠正.zip"
tempData = arcpy.CreateScratchName(workspace=arcpy.env.scratchFolder) # Use scratchGDB environment to write intermediate data

inHeightField = "Elevation"  #创建tin高度字段
# sr = r"E:\等高线纠正.prj"  #
# outTin = r"E:\CreateTin"  # TIN created to delineate data area
# outRaster = r"E:\tinraster.tif"
# dataType = "FLOAT"
# method = "LINEAR"
# sampling = "OBSERVATIONS 250"
# zfactor = "1"

infile = arcpy.GetParameterAsText(0) #输入zip压缩数据
# inHeightField = arcpy.GetParameterAsText(1) #创建tin高度字段
sr = arcpy.GetParameterAsText(1)  #空间参考信息
outRaster =arcpy.GetParameterAsText(2) #tin转栅格的输出路径
dataType = arcpy.GetParameterAsText(3) #栅格数据类型
method = arcpy.GetParameterAsText(4) #创建栅格方法
sampling = arcpy.GetParameterAsText(5) #重采样方法
zfactor =arcpy.GetParameterAsText(6) #比例因子


# Create the zipfile handle for reading and unzip it
#解压zip压缩包的shp数据到指定的文件夹
#
zip = zipfile.ZipFile(infile.decode('utf-8'), 'r')


# methodsForTin=FeatureToTin(outfol)
unzip(tempData, zip)
zip.close()

copyFeature(tempData)

# Use scratchGDB environment to write intermediate data
# tempData = arcpy.CreateScratchName(workspace=arcpy.env.scratchFolder)

制作的模型和执行的结果：

链接：https://pan.baidu.com/s/1mqBtB92bGQrIHCqVytlmXA
提取码：iafl