GeoNURIS WebGIS Tutorial Cooperation & Communication International

Transcription

1 GeoNURIS WebGIS Tutorial

2 by Cooperation & Communication International

3 Table of Contents Foreword Part I Document Introduction Terms Conventions Prerequisite... 6 Part II Introduction 9 1 System... Compostion 9 Part III Map Service using GeoNURIS products 12 1 Upload... data using GeoNURIS Desktop Pro 12 2 Create... GDX for Service 16 3 Save... Map Settings 18 4 Save... GDX 19 5 Check... service using GeoNURIS GeoWeb Server 20 6 Javascript... Include 21 Part IVDynamic Cache Service to improve performance 25 1 Set... Cache 25 2 How... to Call Service using Cache 27 Part V Map Service using Dynamic SLD 29 1 Apply... Dynamic Style 29

4 Part I

5 1 Document Introduction 1.1 Terms The following terms are used in this document. Ter Definitions ms OGC The Open Geospatial Consortium (OGC) is a standards organization that develops specifications for geospatial services WMS The Web Map Service (WMS) specification from the OGC defines an interface for requesting rendered map images across the web. WFS The Web Feature Service (WFS) specification from the OGC defines an interface for reading and writing geographic features across the web. JSP JavaServer Pages a scripting system for Java server applications that allows the interleaving of markup and Java procedural code. 1.2 Conventions The following conventions are used in this document. Conventions Descriptions Password Items shown in windows <Settings> The title of windows [OK] The title of buttons [Start] The title of features Start>All The order for running programs Program>Accessories

6 6 Reference 또 는 The reference which is useful when you run the Reference product Note The note that you need to remind when you run the product 1.3 Prerequisite Check the following prerequisites before using GeoNURIS WebGIS. Database - Oracle 10g or higher Use Oracle 10g or higher version for data storage. In this document, nuris of Oracle account is used. GIS Engine - GeoNURIS GeoSpatial Server for ORACLE WebGIS Server - GeoNURIS GeoWebServer For WebGIS serive, use GeoWeb Server as GeoNURIS data storage which supports open standard server such as WMS and WFS. Client - OpenLayers OpenLayers is open javascript library (it uses no ActiveX). See openlayers.org to find out example, method to use it, class references, and users forum. This document is written based on Openlayers library version Sample Document - example.html, sample data(cities, continents,,rivers) Tools - GeoNURIS Desktop Pro Install GeoNURIS Spatial Server : See GeoNURIS Spatial Server Installation Guide

7 Install GeoNURIS GeoWebServer : See GeoWebServer Installation Guide In case of which GeoNURIS Spatial Server is not installed, only shape files are possible to be used

8 Part II

9 2 Introduction This document explain the series of steps such as Using GeoNURIS WebGIS Server to load existing shape data into GIS engine Starting web service using the data loaded. In addition, in order to improve its performance, this document explains how to use ans set dynamic cache. 2.1 System Compostion The composition of Web GIS service using GeoNURIS GeoWeb Server is like below. Data Area : GSS engine or shape files GIS Engine : GeoNURIS GeoSpatial Server(GSS) for ORACLE WebGIS Server : GeoNURIS GeoWeb Server WebManager : GeoNURIS GeoWebServer Web Manaer Tools : GeoNURIS Desktop Pro Client : OpenLayers

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11 Part III

12 12 3 Map Service using GeoNURIS products This chapter describes how to load downloaded shape files into oracle-based GSS engine. See Chapter 2.2 for how to service shape file directly without using GSS engine. 3.1 Upload data using GeoNURIS Desktop Pro 1. Run GeoNURIS Desktop Pro and register shape files to Catalog a. Right click on Catalog b. Click on Add Data Store>Add Shape Store

13 c. <ADD Shape Store> window is popped up. d. Enter the path of directory where Name and shape files exist. e. Ex) Name : sample_shape, Directory Path : C:\data f. Choose added sample_shape and right click. g. Click on Refresh. The shape lists in the corresponding directory are shown.

14 14 2. Register GSS Storage a. Add GSS Storage to Catalog.

15 b. Enter connection information. Host : Host Address where GSS is installed Port : Port to connect to GSS ( default : 8844) User : User account of DB Password : User password of DB c. Connecting to storage is completed and the lists are loaded. If data do not exist, nothing is shown. 3. Load data to GSS storage a. Select all the data lists under sample_shape of Catalog. b. Right click to pop up a menu and click on Export. <Export Dialog> is popped up. c. Choose gss_store from Target pull-down menu of <Export Dialog>. d. Click on [Export] to put shape files into GSS.

16 16 e. After completed, choose gss_store in Catalog and right click to refresh and check the data lists uploaded to gss_store. Refer: See GeoNURIS Desktop Pro manual for details. GSS Command can be also used to upload data. GeoNURIS Spatial Server manual for details on this. 3.2 Create GDX for Service 1. Choose Map>New Map from GeoNURIS Desktop Pro menu to create a new project.

17 2. Choose Catalog that services a map and right click to pop up a menu. Click on Add To Toc from the popup menu to add map area.

18 18 3. The added layers are added to TOC area and shown in Map Viewer. 4. Set the style for each layer in TOC area. Refer: See GeoNURIS Desktop Pro Manual for details to set styles. If no specific settings exists, current arbitrary styles are applied to the map. 3.3 Save Map Settings 1. Click on File>Save from menu to save map settings. in this document, the file is saved as samplemap.xml

19 3.4 Save GDX 1. Register samplemap.xml created above to GeoNURIS GeoWeb Server. Copy GDX file, samplemap.xml, to the gdx folderwhere GeoNURIS GeoWeb Server is installed.

20 Check service using GeoNURIS GeoWeb Server 1. Connect to and sign in 2. Choose Data Preview from the menu on the left to check the lists

21 3. Click on 3.6 Javascript Include to check the map

22 22 Add./lib/OpenLayers.js to the root folder of OpenLayers folder downloaded to write service. <html> <head> <title>openlayers Example</title> <script src=" </head> <body> <div style="w idth:100%; height:100%" id="map"></div> <body> </html> 1. Create a map instance. var map = new OpenLayers.Map('map'); 2. Create a layer and call WMS service. Var baselayer = new OpenLayers.Layer.WMS('기본맵',' ms?gdx=samplemap.xml&', { layers: 'ROOT', transparent: 'false', bgcolor: '0xffffff', exceptions: 'BLANK', text_anti: 'true', anti: 'true', label: 'HIDE_OVERLAP', graphic_buffer: '64'}, { isbaselayer: true, buffer:0, singletile: false,opacity: 0.8 } ); Service URL : ' Check Map Service Call Example.xml to explorer and check.

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24 Part IV

25 4 Dynamic Cache Service to improve performance 4.1 Set Cache 1. Connect to Admin Page ( URL : 2. Create cache key Click on Cache Create from Click on Cache manage in the image below. Create a New Cache in the image below to create a cache key.

26 26 Enter the condition for cache at the bottom of the screen to create a cache key. 3. Enter conditions to create a cache key The followings can be specified. Items Values Descriptions GDX samplemap.xml Name of GDX using Cache Key samplemap_cacheke Name of Cache Key to be created이 y Cache Path C:\CacaheData Path to save cache data Layers ROOT All layers set to GDX CRS EPSG:4326 Coordinate Reference System Unit Degrees Unit of coordinate system Max Extent , -90.0, 180, 83 Maximum extent of map Max Resolution 0.7 Resolution for maximum scale Zoom Level 14 Number of Scale Level Tile Width 512 pixel size of width of Cache Image Tile Height 512 pixel size of height of Cache Image Backgroud Color 0xFFFFFF Background color of Cache Image

27 Antialiasing false Apply Antialiasing to outer lines or not. TextAntialiasing true Apply Antialiasing to texts or not. Transparent false Transparentize Cache Image Backgroud Color or not Graphic Buffer 64 Buffer to prevent omitting texts at the adjacent tiles Label Policy Hide Overlap : Allow to overlap texts Label Repeat LABEL_NOREPEAT Repeat labels in case of Line type or nor Label Display 100 Gap The gap when repetitively using text at Line Type. For example, when indicating the name of river Image Format 4.2 Image/png (default) Cache Image Type to create How to Call Service using Cache Change URL in chapter Create layers and Call WMS service to the value below samplemap_cachekey

28 Part V

29 5 Map Service using Dynamic SLD The style information which is initially set is dynamically applied depending on the conditions specified by applications. 5.1 Apply Dynamic Style Initial Screen Screen after applied

30 30 1. How to apply dynamic style By applying dynamic style, use the URL of the style setting file which you want to apply when calling WMS. Ex) 2Flocalhost%3A8881%2Fgeonuris%2Fcontinents.xml&',

31 2. How to call OpenLayer userlayer = new OpenLayers.Layer.WMS( 'sld change', ' ms?gdx=samplemap.xml&sld=http%3a%2f%2flocalhost%3a8881%2 { layers: 'NURIS.CITIES,NURIS.RIVERS,NURIS.CONTINENTS', transparent: 'true', bgcolor: '0xffffff', exceptions: 'BLANK', label: 'HIDE_OVERLAP', graphic_buffer: '64' }, { isbaselayer: false, buffer:1, singletile: false, opacity: 0.7 } ); Call URL When calling URL, add SLD parameters. Write the targeted layer lists in the part of 'Layers' parameter.