技术标签: java wms
This project is now called GeoWebCache, and has moved to http://geowebcache.org.
Using GeoServer to serve geographic image tiles directly to a web client (such as OpenLayers) requires substantial computational effort on the server side. Yet, the redundant and largely static nature of the problem makes it an ideal candidate for a cache. Existing naive HTTP caches are often employed, but are not well tailored to the specific needs of WMS image tile requests. One existing WMS-C (Web Mapping Service Caching server) exists: MetaCarta's TileCache. TileCache provides a significant performance improvement for serving map tiles. However, TileCache is typically run using mod_python, an environment that requires much considerable setup in addition to a J2EE deployment of GeoServer. In response to these needs,
描述This is a magic countryHarmonious societyAnd harmonious peopleThis is a wonderful contestHarmonious studentsAnd harmonious problems.This is the most harmonious problem, and the que
题目大意就是找到一个环使得顶点权值之和与边权之和的比率最大首先,需要注意的是题目要求可以从任意一点开始,网上很多解题报告默认的从1点开始,虽然过了此题,但是显然是不太对的由于题目是求的max,那么在边权变形后,用 SPFA求最长路,看是否出现正环, 然后根据这个进行二分查找。如果不懂图是怎么构建的,可以看一下01规划具体是怎么做的。#include #include
Android简单计算器开发实例如图:====================================================activity_main.xml 代码如下:<TableLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="ht...
Erro:已有打开的与此 Command 相关联的 DataReader,必须首先将它关闭。處理方式有兩種1,設定ConnectionString加上MultipleActiveResultSets=true,但只適用於SQL 2005以後之版本2.先讀出放置在List中foreach(Employee emp in context.Employees.ToList
最近在实现FlowTrack(End-to-end Flow Correlation Tracking with Spatial-temporal Attention),子网络用到了FlowNet,实现代码用到了空间互相关,需要安装spatial-correlation-sampler。所以需要配套的环境,鼓捣了一下,成功了,于是有了这篇文章,这篇文章相当于安装spatial-correlation-sampler的先导片,下一篇就来重点讲解如何安装spatial-correlation-sampler。
给多边形区域加上标签,提供标签编辑和删除功能,效果图如下:1、添加测试数据,包括3个多边形区域,3个标注标识多边形标签的大概显示位置 /*-----------------------创建3个多边形-------------------------------*/ var polygon1 = new BMap.Polygon([ new...
因为在设计一个树形结构的实体中用到了多对一,一对多的映射关系,在加载其关联对象的时候,为了性能考虑,很自然的想到了懒加载。也由此遇到了N+1的典型问题 :通常1的这方,通过1条SQL查找得到1个对象,而JPA基于Hibernate,fetch策略默认为select(并非联表查询),由于关联的存在 ,又需要将这个对象关联的集合取出,集合数量是N,则要发出N条SQL,于是本来的1条联表查询SQL...
一、当前数据库服务器系统时区为CSTset line 200col SYSDATE for a20col SYSTIMESTAMP for a40col CURRENT_DATE for a20col CURRENT_TIMESTAMP for a40select sysdate,systimestamp,current_date,current_timestamp from dual;SQL> select sysdate,systimestamp,current_date,cu
NET Core开发环境搭建使用VS2015开发.NET Core项目,环境的搭建可以参考官网,大致安装步骤如下:1、首先你得装个vs2015 并且保证已经升级至 update3及以上,2、vs安装完成之后 先安装 .net core sdk,下载链接: https://download.microsoft.com/download/A/3/8/A38489F3-9777-4...
本来想做一道网络流的,结果Tyvj把这个水题扔到了网络流的分类里面,就顺手做了==广东汕头聿怀初中 Train#2 Problem2描述给出长度为N的数列{A_i},每次可以从最左边或者最右边取走一个数,第i次取数得到的价值是i * A_j。求价值之和最大的取数方案。
12-22 了解网页构成的基本信息测试分析010203040506