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MapInfo in the Bodleian Library Map Room 1 Bodleian Library Map Room home page

MapInfo in the Bodleian Library Map Room 1 Bodleian Library Map Room home page written by Nigel James MAPINFO - An easy guide for new users in the Map Room Contents 1. MAPINFO BASICS This guide is intended primarily for Map Room users, but may be of interest to other University students and staff, or indeed the wider community. References to tables, folders etc., are not applicable outside the Map Room, so if you are located elsewhere, you should substitute your own. MapInfo and the datasets available in the Bodleian Library Map Room can only be used for education and research purposes. It is not licensed for commercial publication or other purposes. There are also restrictions on the use of Ordnance Survey and Census boundary data - please ask for further information. Tables, tables... MapInfo may appear at first to be a complex application, but whilst it is powerful it is also straightforward to use, once some basic concepts are understood. Please remember that this is not an exhaustive guide to MapInfo - if you need more help or would like to discuss your mapping requirements please ask at the Map Room Enquiry Desk. All data is stored as table (*.tab) files. These tables can contain just data values or data which has associated graphical data (symbols, lines etc.). If the table contains data only, then it can only be displayed in a browser window. A browser window looks like a simple spreadsheet table, with columns and rows. If the table has associated graphical data then it can be displayed as a map in a mapper window. You change an unmappable (browser) table to a mappable table by creating graphic data, as explained further on. Layer by layer… http://www.bodley.ox.ac.uk/guides/maps/miguide1.htm (1 of 3)23/09/2004 12:14:17 MapInfo in the Bodleian Library Map Room 1 Tables can be layered to build up composite maps. For example you could combine a coast layer with a rivers layer to produce a simple hydrologic map. The layers can be ordered as you wish, so that if you add a roads layer it can be placed above the rivers layer! New layers can be added or removed as required. You can import your own data, either points (with coordinates) or thematic. Point data can be used to show spatial distribution of data and you can choose from a range of symbols to represent your data. Multiple data layers can be used to show several datasets simultaneously. With thematic data you can create a shaded world map showing demographic data, for example. Maps can also be customised (i.e. line style and colour, polygon fills and point styles can all be changed), so you do not have to use the default colours and styles. When you have created the map, you place it into a layout window. This enables you to position the map on a page, add a scalebar, title, key and any other details which are needed to complete your map. You can also add additional maps, such as location maps, enlargements etc., to your own requirements. Save it or lose it! It is most important that you save your work as your map progresses. You can then stop at any point and return to it another time, carrying on from where you left off. You do this by saving your map(s) in a workspace. A simple analogy of a workspace is to compare it to a recipe. The workspace file contains a list of the tables you have used (the ingredients) and their zoom levels, geographic limits, style settings etc., and most importantly, your layout window settings (i.e: how to 'cook' your map). The workspace can then re-create your maps each time you load the workspace file. One important difference between the workspace file and a recipe is that it also records where the tables are located (i.e: which cupboard the ingedients are in). So do not move files around and certainly do not delete any! If you do, you will not be able to open the workspace. (Although the workspace is a simple text file, think very carefully before attempting to edit it. This may be the only option if you have moved some tables and cannot remember where they should be, or have deleted some entirely, but it is very risky!) You should create a workspace fairly early in your session and regularly save it so it is up to date. You then have a backup in the event of a disaster! When you create workspace file(s) - you can have more than one if you wish to keep two or more versions of your work - on the Map Room workstation they should be saved in a personal folder in the usrfldrs folder on drive D. To create your folder, select drive D, then look through the list of folders and open the folder called usrfldrs. Click the New Folder button to create a new folder, naming it with your name. Always use this folder to save downloads and other files. 2. Let's make a map http://www.bodley.ox.ac.uk/guides/maps/miguide1.htm (2 of 3)23/09/2004 12:14:17 MapInfo in the Bodleian Library Map Room 2 Bodleian Library Map Room home page written by Nigel James MAPINFO - An easy guide for new users in the Map Room Contents 2. LET'S MAKE A MAP This guide is intended primarily for Map Room users, but may be of interest to other University students and staff, or indeed the wider community. References to tables, folders etc., are not applicable outside the Map Room, so if you are located elsewhere, you should substitute your own. MapInfo and the datasets available in the Bodleian Library Map Room can only be used for education and research purposes. It is not licensed for commercial publication or other purposes. There are also restrictions on the use of Ordnance Survey and Census boundary data - please ask for further information. Start MapInfo (good, that's the easy part done…) The first thing you see when you start a new session is the Quick Start dialog. This gives you a selection of options, depending on how you wish to proceed. To start a new map from scratch, click the Open a table option, then OK. You can then strat opening tables to create your map. If you have already created a workspace in a previous session, click Open a workspace, then OK . Find your workspace file and open it. You can then carry on with your map. If you were the last user, your workspace will be named, so just open it again. If you exited MapInfo without saving a workspace (oh, dear...), you can recover your work by selecting Restore previous session. This can be a lifesaver, but it is better to save everything before exiting! Alternatively you can click the Cancel button to remove the dialog, then open the File menu and click Open Table, or you can use the Open table speedbutton below the menu bar. To open a workspace from the menus, open the File menu and click Open workspace. Data, data everywhere... http://www.bodley.ox.ac.uk/guides/maps/miguide2.htm (1 of 8)23/09/2004 12:15:36 MapInfo in the Bodleian Library Map Room 2 There is a considerable amount of data available on the Map Room workstation and it is listed in the Datasets section of this guide. However, let's make a simple map to start with so you can see the principles in action. For this example we will use the outline World map which is supplied with MapInfo. To open this, click Open a table on the Quick Start dialog (or File>Open table if it is not displayed), then open the MapInfo folder on drive D. Open the Data folder and then the World folder. (if you are following this on another workstation you will have to locate the table yourself). Select the file world.tab and click Open. You will now see a basic outline world map. Note that as this data is mappable, it opens automatically in a mapper window. If the data was not mappable, it would open in a browser (this is explained further in the next section). Tables, layers: the same but different... You may think that tables and layers are one and the same, as tables create layers in a map. Well, they are.. but then again they are not! A table is mappable if it has graphic objects associated with the data (the table worldcap.tab has a star symbol associated with each record in the table). therefore a mappable table can be used as a layer in a map. However if the table is not mappable (because it is simply data, without any associated graphic objects) it cannot be used as a layer, but it is still a table and can be displayed in a browser window (like a spreadsheet). Now back to the World map which you have opened. If you cannot see the whole world, click the right mouse button while the pointer is in the mapper window and select View Entire Layer from uploads/s3/ mapinfo-basics-mapinfo-an-easy-guide-for-new-users-in-the-map-room.pdf