上不同的地图服务平台对地图文件格式的要求多种多样,arcgis使用的文件很难应用于其他平台上,因此需要有格式转换的服务来克服这种使用不同平台带来的麻烦,下面以TIFF格式转GEOTIFF格式为例. 首先需要准备几件事: 1.确保安装了arcgis data interoperability for desktop 2.在自定义菜单>扩展模块中勾选Data Interoperability 3.在ArcToolbox中新建一个自己的工具箱,右键工具箱>新建>选择spatial etl to
import os import MySQLdb Con= MySQLdb.connect(host=',db='test') #链接数据库 cur=Con.cursor() os.chdir("E:/etl_folder") #改变工作路径 for i in os.listdir(os.getcwd()): #得到工作路径下的文件 if(os.path.isfile(i)): aa= os.getcwd()+"\\"+i #文件夹操作是\\是\因为转移符的原因 a
原文地址:http://webhelp.esri.com/arcgisdesktop/9.1/body.cfm?tocVisable=1&ID=1470&TopicName=Setting%20an%20appropriate%20geodatabase%20spatial%20domain For spatial data to be appropriately stored and referenced to a location on the earth, it must have
ETL ETL is an abbreviation of Extract, Transform and Load. In this process, an ETL tool extracts the data from different RDBMS source systems then transforms the data like applying calculations, concatenations, etc. and then load the data into the Da
0. Data Lake Analytics(简称DLA)介绍 数据湖(Data Lake)是时下大数据行业热门的概念:https://en.wikipedia.org/wiki/Data_lake.基于数据湖做分析,可以不用做任何ETL.数据搬迁等前置过程,实现跨各种异构数据源进行大数据关联分析,从而极大的节省成本和提升用户体验.关于Data Lake的概念. 终于,阿里云现在也有了自己的数据湖分析产品:https://www.aliyun.com/product/datalakeanalyt
大数据的流行一定程序导致的爬虫的流行,有些企业和公司本身不生产数据,那就只能从网上爬取数据,笔者关注相关的内容有一定的时间,也写过很多关于爬虫的系列,现在收集好的框架希望能为对爬虫有兴趣的人,或者想更进一步的研究的人提供索引,也随时欢迎大家star,fork ,或者提issue,让我们一起来完善这个awesome系列 github地址 Awesome-crawler A collection of awesome web crawler,spider and resources in dif
Elasticsearchis a great search engine, flexible, fast and fun. So how can I get started with it? This post will go through how to get contents from a SQL database into Elasticsearch. Elasticsearch has a set of pluggable services called rivers. A rive
转自 http://blog.csdn.net/thy822/article/details/8489779 这篇文章, 我不能同意更多, 所以转在这里. Here is my thinking after looking at both products... First of all let me tell you what I like about informatica.... - Inbuilt tool to export mappings to Excel and Visio...
Extract,Transform, and load(ETL) Briefly stated, ETL is a process in the database anddata-warehousing world that performs the following steps: Extracts data from an external data source Transforms the extracted data to match a specific purpose Loads
