Geog_And_Epid.Doc Page 1 of 21 GIS Intro for G&G 304 Objectives By the end of this tutorial, you should understand: How to Open spatial data in ArcMap How to create a spatial data layer from tabular coordinates How to subset data by spatial overlay How to Join tabular data with spatial boundary files How to apply symbology based on data values Where to find spatial data for you projects The difference between viewing and managing spatial data in Windows Explorer & ArcCatalog How to navigate in the Data & Layout Views of ArcMap How to create basic map layouts with essential map elements How to export your map layout s to jpg & pdf formats for sharing your work with others How do measure distance from many features to many features using raster How to create counts of one set of features within another Getting Ready for the Tutorial Sign Up for the GIS-L Listserv The Yale University GIS-L Listserv is an internal University message system, devoted to GIS use and issues at Yale. The list is the primary source for updates on software and license server issues, data acquisitions and workshop announcements. All GIS users are encourages to sign up for the list. The GIS-L list is very lightly used, so that you will not be overwhelmed with messages that are not relevant to you. 1. In your Web Browser, Go To the Map Collection Website, at 2. Under the Quick Links section on the right,, Click on the Sign up for the Yale GIS-L Mailing List link to go to the GIS- L registration page. 3. Enter your Email Address and Choose a Password. Note: We suggest that you not select the Daily Digest feature. 4. Click on the Subscribe Button to finish. You should receive a confirmation email shortly afterward, with instruction on how to use the GIS-L list. Download the Data The datasets used in this tutorial are available for download on the Map Collection Website. Feel free to download and use these tutorial materials, as you wish, and to pass them along to interested colleagues. 1. Return to the Map Collection Homepage, in your Web Browser. 2. Under the Quick Links Section on the right, Click on the Download Gis Workshop Materials link. 3. Find the Data Link for the ArcGIS 9.2 GIS Intro for G&G 304 and Right-Click on the Link. 4. In Firefox, Select Save Link As, in Internet Explorer, Select Save Target As 5. Depending on your browser and setup, you may be offered a Browse Window, to select the folder into which you want the downloaded file placed. If so, Browse to a Folder on your hard drive that you have write permission for. For this tutorial, we will assume that you are using the C:\temp folder of the machine you are working on.
Geog_And_Epid.Doc Page 2 of 21 6. Clicking on the Create New Folder Button, Create a New Folder, using your initials as the name of the folder, so that you end up with a full path something like: C:\temp\your_initials\ 7. Save the Downloaded File to this New Folder. Unzip the Data You should now have a file called 01-Introduction to ArGIS_92.zip in your new folder. It is now necessary to decompress, or unzip, the tutorial data for use. Note that in Microsoft Windows XP and Vista, it is possible to Explore a compressed file, as if it were a folder. ArcMap does not support this type of browsing, so it is necessary to actually unzip the file for use. This part of the tutorial assumes that you are using Windows built in Compressed File support. 1. Browse into the Folder where you saved the Geology_and_Health.zip file. 2. Right-Click on the File and Select Extract All 3. Click Next to arrive at the window shown at the right. 4. Under File Will Be Extracted To This Directory: Remove the Geology_and_Health\ part of the Path Name (this is redundant, as the zip file contains a directory structure of its own). 5. Click Next to Extract the File. 6. Once the extraction has completed, you can Uncheck View Extracted Files and Click Finish. Explore the Data in Windows Explorer Now you will take a look at the data you have extracted, using Windows Explorer. This part of the tutorial is designed to familiarize you with the difference between how Windows recognized common spatial dataset filetypes, and how ArcGIS recognizes them. 1. Browse into the extracted C:\temp\your_initials\Geology_and_Health\Data\Shapefile Folder Folder. You should now see a number of different files, some of which have the same filename, but with different extensions (Windows doesn t always show file extensions for known filetypes, such as dbf, or shp, in some cases). 2. If necessary, Click on the Name Field Header in the Explorer Window to Sort the files By Name. What is critical to recognize about the contents of this folder is that all of the files with the same filename are actually part of a single shapefile. The shapefile is ESRI proprietary vector data format. The fact that it is called a shapefile can cause some confusion, since it is actually a collection of files. Explore the Data in ArcCatalog Now you will take a look at the same data using the ArcGIS version of Windows Explorer, which is designed to interact with these types of spatial data filetypes. 1. Go To Start>Programs>ArcGIS> and Launch the ArcCatalog program. 2. Using the Catalog Tree Panel, at the left side of the Arccatalog application window, Browse to your C:\temp\your_initials\Geology_and_Health\Data\Shapefile Folder.
Geog_And_Epid.Doc Page 3 of 21 3. Make Sure that the Contents Tab at the top of the Catalog Display on the right side of the ArcCatalog Application Window is active. Note the difference in how ArcCatalog and Windows display shapefiles. ArcCatalog knows that a shapefile is actually a collection of files, as so it only shows you a single file, where Windows Explorer showed all of the files. You should always use ArcCatalog for Moving, Deleting, Copying, etc any spatial data files, for this reason. Using ArcCatalog for these tasks prevents critical parts of the spatial data files from being left out and rendered useless. Finding Data (it is not necessary for you to download for this tutorial) Downloading Data from the National Atlas 1. In your web browser, Go to www.nationalatlas.gov. 2. Click on the Map Layers item on the Main Menu. 3. Scroll to the bottom of the page to the Water group and click on it to open the list of available layers. 4. Click on the View map layer description link next to the Streams and Waterbodies item. 5. Click on the Raw Data Download link at the bottom right of the page. 6. Note the available layers (you don t need to download anything, as the data needed is included with the tutorial data). Downloading Data from the ESRI Census Website 1. In your web browser, go to www.google.com. 2. Enter ESRI Census as your search term. 3. Click on the Census 2000 TIGER/Line Data link, which should be the first returned result. 4. Click on the Preview and Download link on the left side of page. 5. Select the State of Missouri from the Dropdown or Map. 6. Select County 2000 from the Select by Layer Dropdown and click Submit Select. 7. Select the All Counties checkbox. 8. Scroll to the bottom of the page and click on the Proceed to Download button. 9. Click the Download File button on the resulting page and save the file to your C:\temp\your_initials\Geology_and_Health\Data\Shapefile Folder. 10. Use the Back Button on your web browser to select and download the Census County Demographics (SF1) Layer and save it to your C:\temp\your_initials\Geology_and_Health\Data\Tabular folder. 11. Browse to the folders you downloaded the datasets to and Unzip them directly to their respective folders. Other Sites for Spatial Data seamless.usgs.gov www.gispilot.com
Geog_And_Epid.Doc Page 4 of 21 Opening ArcMap and Getting Familiar 1. From the Windows Start Menu, go to Start>Programs>ArcGIS>ArcMap Main Menu Standard Toolbar Tools Toolbar View Toolbar Map Display Table of Contents You should now see something like what is shown above. Take a few seconds to familiarize yourself with the ArcMap interface. The Main Menu should be familiar to anyone who uses Microsoft Windows software. It is where you perform basic file and document editing functions. The Table of Contents is the area where your data layers will be listed and where you can interact with and alter the properties of individual layers. The Add Data Button is located on the Standard Toolbar and opens a dialog box that allows new layers to be added to the Table of Contents and Map Document. It should not be confused with the Open Document button, which is located on the same toolbar, but is not unique to ArcMap. The Map Display is the area where your map data will be displayed. The Tools Toolbar contains a series of tools that operate on the data displayed in the Map Document Window. The View Toolbar changes between the Data View and Layout View of the Map Document.
Geog_And_Epid.Doc Page 5 of 21 Adding Data to the ArcMap Interface 1. Use the Add Data Button to Open a Browse Window and Browse to your C:\temp\your_initials\Geology_and_Health\Data\Shapefile Folder. 2. Hold down the CTRL Key and Select the three shapefiles, as shown on the right. 3. Click Add. You should now see that three layers have been added to you Table of Contents Panel. The Point file is a layer that describes the location of Non-Ferrous Mining operations in the U.S.. The Line file describes the location of Hydrological features (Rivers, Streams & Lakeshores) in the State of Missouri. The Polygon file describes the County Boundaries of the State of Missouri. Navigation in ArcMap s Data View 1. Select the Zoom In Tool from the Tools Toolbar. 2. Drag a Box across the State of Missouri in the Map Display Panel to Zoom Into the Data View. 3. Click on the Back To Previous Extent Button to Return to the Previous Map Display View. 4. Click on the Fixed Zoom Out Button to Zoom Out of your Map Display at fixed intervals. 5. Select the Pan Tool from the Tools Toolbar and use it to Move your Map Display. 6. Click on the Full Extent Button to Zoom Out to the extent of the Layer in your Map Document with the largest extent. 7. Right-Click on the tgr29001cty00_merge Layer and Select Zoom To Layer from the Context Menu. 8. Finally, on the Main Menu, Go To View>Bookmarks>Create to Create a Bookmark, called Main View, of the current extent of your Map Display.
Geog_And_Epid.Doc Page 6 of 21 Data Preparation and Creation Setting an Appropriate Projection 1. Right-click on the Layers layer at the top of the Table of Contents Panel and select Properties. 2. Click on the Coordinate System Tab. 3. Click through the Hierarchy of coordinate systems to the Predefined>Projected Coordinate Systems>State Plane>NAD 1983>NAD 1983 StatePlane Missouri Central FIPS 2402.prj. 4. Click OK to apply the State Plane coordinate projection. Subset using Selection by Location 1. On the Main Menu, Got to Selection>Select by Location. 2. In the Select by Location Dialog, set the options as follows: I want to: select features from the following layer: minop6x020 that: intersect the features in this layer: tgr29001cty00merge 3. Click OK to close the window and apply the selection. Note that the points from the minop6x020 Layer that are within the State of Missouri are now selected, which is indicated by the fact that they are highlighted blue. 4. Right-click on the minop6x020 Layer in the Table of Contents Panel and go to Data>Export Data. 5. Leave the Export: Selected Layers setting as is. 6. Change the Coordinate System Setting to the data frame. 7. Browse to the C:\temp\your_initials\Geology_and_Health\Data\Shapefile Folder and save the exported file as MO_Mines.shp. 8. Click OK. 9. When prompted, click Yes to add the layer to the Map Document. 10. Right-Click on the original minop6x020 Layer and Remove it.
Geog_And_Epid.Doc Page 7 of 21 Working with and Converting Tabular Data Adding Tabular Data to the Map Document 1. Use the Add Data Button to Open a Browse Window and Browse to your C:\temp\your_initials\Geology_and_Health\Data\Tabular Folder. 2. Note that there are several tabular datasets, including two Excel Files. ArcMap treats Excel files as if they are Folders, since they can contain many worksheets. Double-click on the TRIS_LEAD_Release_sites_lbs.xls file to browse into it. 3. Select the 'stfa-releases$' worksheet and click Add. Note that the Table of Contents Panel view changes to show that you have added a layer that currently has no explicit geometry. 4. Right-click on the 'stfa-releases$' Table and Open it. Displaying XY Coordinates from a Table Note that there are two fields that contain Lat/Lon coordinates. These fields can be used to create a spatial data layer. 1. Close the Table. 2. Right-click on the 'stfa-releases$' Table again and this tiem select Display XY Data 3. In the resulting window, Click on the Edit Button. 4. Click on the Select Button and Browse to the Geographic Coordinate Systems>World>WGS 1984.prj Projection and click Add.
Geog_And_Epid.Doc Page 8 of 21 5. Click OK. 6. Click OK again to Display the XY Data. 7. You will be warned that the data you are displaying does not have an Object ID field, Click OK to continue. You should now see that an array of points have been added to your Map Document, as well as an Events Layer, in the Table of Contents Panel. Note that this layer is only, at this point, a Display of points, based on the coordinates in the table. To measure anything relative to these locations, it is necessary to convert this display to an actual shapefile. 1. Right-click on the 'stfa-releases$' Events Layer in the Table of Contents Panel and Select Data>Export Data. 2. Click on the data frame for the coordinate system option. 3. Browse to the C:\temp\your_initials\Geology_and_Health \Data\Shapefile Folder and save the export file as MO_Lead_Releases.shp. Click Add. 4. Click OK and Yes when prompted to add the exported layer to your Map Document. 5. Right-Click on the stfa-releases$' Events Layer and Remove it. 6. Click on the Display Tab at the bottom of the Table of Contents Panel. 7. Right-click on the MO_Lead_Release Layer and Open the Attribute Table. Joining Tabular Data to Boundary Files Examining the Data and Identifying a Keyfield 1. Use the Add Data Button to Open a Browse Window and Browse to your C:\temp\your_initials\Geology_and_Health\Data\Tabular Folder. 2. Browse into the MO_Lead_CountyLevelSummary_2005.xls Excel file by Double-Clicking on it. 3. Select the Clean$$ Worksheet and Click Add to add it to the Map Document. 4. Right-Click on the Clean$$ Table and Open it.
Geog_And_Epid.Doc Page 9 of 21 Note the data contained in this Table includes counts of children under 6 with elevated blood lead levels, as well as other parameters relevant to the testing. Also, there is a field called CNTYFPS which has the county Fips Codes for each County record in the dataset. 5. Right-Click on the tgr29001cty00_merge layer and Open it Attribute Table. Note that this Boundary File Layer also has a FIPS Code field called FIPSSTCO, but that it is a concatenation of the State & County FIPS Codes. We need to alter the field in one to the tables in order to use this field as a keyfield to join the two datasets with. The Clean$$ table will be the easier to alter. Creating and Calculating a New Field to edit, or export the table to a format that can be edited in ArcMap. 1. Excel Files are not editable in ArcMap, so we must either use Excel 2. Click on the Options Button at the bottom of the Clean$$ Table and Select Export. 3. Save the table as Clean.dbf, in the C:\temp\your_initials\Geology_and_Health\Data\Tabular Folder. 4. Remove the Clean$$ Table from the Map Document. 5. Open the Clean Table from the Table of Contents Panel. 6. Click on the Options Button at the bottom of the Clean Table and Select Add Field. SSTCO ; of type: Text; and with a Length of 10. 7. Na me the ne w fiel d FIP 8. Click OK. 9. Scroll to the right to find the newly added FIPSSTCO field. 10. Right-click on the FIPSSTCO field header and select Field Calculator. 11. In the argument window, enter the argument: 29 & [CNTYFPS] 12. Click OK to calculate the field.
Geog_And_Epid.Doc Page 10 of 21 You should now have a field whose values match those in the boundary file, tgr29001cty00_merge. Joining Tabular Data to a Boundary File 1. Right-click on the tgr29001cty00_merge Layer and select Joins and Relates>Joins. 2. Select Join Attributes from a Table. 3. Select FIPSSTCO in drop-down 1. 4. Select Clean in drop-down 2. 5. Select FIPSSTCO in drop-down 3. 6. Click OK. 7. Click OK when prompted to Index the Join. 8. Open the Attribute table of the tgr29001cty00_merge Layer and note that the fieldnames are now prefixed with the name of the dataset from which they have been joined. Just as with the Events layer, you must export the joined datasets to a new layer in order to calculate any new parameters within the attribute table. 1. Close the Attribute Table of tgr29001cty00_merge Layer. 2. Right-click on the tgr29001cty00_merge Layer and Select Data>Export Data. 3. Change the coordinate system setting to the data frame. 4. Browse to the C:\temp\your_initials\Geology_and_Health\Data\Shapefile Folder and save the export as MO_Child_Lead_Ex.shp. 5. Click Add. 6. Click OK to Export the dataset. 7. Click Yes when prompted to add the layer to the Map Document. 8. Remove the Clean Table and the tgr29001cty00_merge Layer. Applying Symbology to Visually Examine Data 1. Right-click on the MO_Child_Lead_Ex Layer and Open the Properties. 2. Click on the Symbology Tab. 3. Click on the Quantities item under the Show Panel.
Geog_And_Epid.Doc Page 11 of 21 4. Select CONFIRMED as the Value Field. 5. Select NUMTESTED as the Normalization Field. 6. Click OK to Apply the Symbology. Measuring with ArcMap Counting the Number of Lead Release Sites in a County 1. Right-click on the MO_Lead_Releases Layer and Open the Attribute Table. 2. Click on the Options Button and Select Add Field. 3. Add a Short Integer Field named DUMMY 4. Right-Click on the new Field Header and Open the Field Calculator. 5. Enter the number 1 in the argument window. Click OK. 6. Close the Attribute Table.
Geog_And_Epid.Doc Page 12 of 21 7. Right-click on the MO_Child_Lead_EX Layer and Select Joins and Relates>Joins. 8. Change the first drop-down to Join data from another layer based on spatial location. 9. Select MO_Lead_Releases as the Join Layer. 10. Select Sum as the summary method. 11. Browse to the C:\temp\your_initials\Geology_and_Health\Data\Shapefile Folder and save the output as MO_Child_Lead_Ex_with_Count.shp. 12. Click OK. 13. Open the Attribute Table of the resulting layer and note that the numeric fields from the MO_Lead_Releases Layer have been added summarized by addition for all of the points within each county. Some of these fields are nonsense, but some may reflect information that is relevant to the question of the relationship between Lead Release and Child Lead Exposure. Note that the Sum_Dummy field contains the number of release sites in each County. Copying Symbology 1. Right-click on the new MO_Child_Lead_Ex_with_Count Layer and Open the Attribute table. 2. Click on the Symbology Tab. 3. Click on the Import Button. 4. Select MO_Child_Lead_Ex as the Import Layer. Click OK. 5. Make sure the Value Matching Fields are the same. Click OK. 6. Click on the Labels Tab. 7. Check the Label features in the layer checkbox. 8. Change the Label Field to Sum_Dummy. Click OK.
Geog_And_Epid.Doc Page 13 of 21 Measuring Distance from one Feature to Another Step 1: Creating a Distance Raster 1. Click on the ArcToolBox Button to Open the ArcToolbox Panel. 2. Click on the Search Tab at the bottom of the ArcToolbox. 3. Enter Distance as the Search Term and click the Search Button. 4. Double-click on the Euclidean Distance Tool to open it. 5. Select the hydrogl020_clip Layer as the Input Feature Class. 6. Browse to the C:\temp\your_initials\Geology_and_Health\Data\R aster Folder and save the Output Raster as dist2hydro. 7. Set the Output Cell Size to 2000 (this is meters). 8. Click on the Environments Button. 9. Click on the Raster Analysis Settings item to expand it. 10. Select the MO_Child_Lead_Ex_with_Count layer as the Mask. 11. Click OK. 12. Click OK to create the distance raster. 13. Once the Distance tool has run, turn off the visibility of the layers above the dist2hydro Layer until it is visible. You now have a raster layer in which every cell value is the distance in meters to the nearest part of the hydrology network. Step 2: Extracting Raster Values to a Point Layer 1. Return to the ArcToolbox Search Tab and search on the term Extract
Geog_And_Epid.Doc Page 14 of 21 2. Double-click on the extract Values to Points tool to open it. 3. Select the MO_Lead_Releases Layer as the Input Point Feature. 4. Select the dist2hydro Layer as the Input Raster. 5. Browse to the C:\temp\your_initials\Geology_and_Health\Data\Shapefile Folder and save the output Point Features as MO_Lead_Releases_with_dist2hydro.shp. 6. Check the Interpolate values at the point location checkbox. 7. Click OK. 8. Open the Attribute table of the resulting layer and scroll to the far right. Note that there is a new field named RASTERVALU whose values reflects the distance in meters to the nearest hydrological feature. 1. Final Cleanup 1. Turn off the visibility of the dist2hydro Layer. 2. Turn on the Visibility of the MO_Child_Lead_Ex_with_Count Layer. 3. Click and Drag the hydrogl020_clip Layer to the top of the Table of Contents Panel. 4. Turn on the visibility of the hydrogl020_clip Layer. 5. Click on the line symbol below the hydrogl020_clip Layer to Open the Symbol Selector. 6. Change the color of the hydrogl020_clip Layer to blue.
Geog_And_Epid.Doc Page 15 of 21 Introduction to the Layout View We are now ready to begin finishing our Map Document and preparing it so that it can be shared with others. To do this, we will change from the ArcMap Data View to the Layout View. The Layout View will provide tools not available in the Data View, primarily those relevant to creating Map Layouts. Navigation in the Layout View 1. Click on the Layout Button (it looks like a page), on the View Toolbar at the bottom left corner of the Map Display. Note that you are now presented with the Layout Toolbar. This toolbar is only available in Layout View. Some of the Tools on this toolbar work in a way that is similar to the Tools Toolbar, but with one critical difference these tools act on the page rather than the data. 2. Click on the Layout Zoom Tool and Drag a Box across the top half of the Layout Display. 3. Click on the Page Extent Button to Return to the Full View of the page. Layout Zoom Layout Pan Page Extent Note that these tools did not change the scale or extent of the data. Working with Data Frame Properties The data is contained within a rectangle referred to as the Data Frame. In the Data View, this rectangle was represented by the edges of the Map Display Panel. Now, the Data Frame is an Object on the layout page. The fact that the Data Frame is an Object on the Layout Page means that we can alter its properties.
Geog_And_Epid.Doc Page 16 of 21 1. At the very top of the Table Of Contents Panel, Right-Click on the Layers Layer and Open the Properties. 2. Click on the Size And Position Tab. 3. Change both the Width & Height to 5 Inches. 4. Change the Element Name to Main Data Frame. 5. Click on the Frame Tab. 6. Select a Border Style. 7. Click Ok to Apply the Changes. 8. Right-click on the Mo_Child_Lead_Ex_with_Count Layer and select Zoom to Layer.
Geog_And_Epid.Doc Page 17 of 21 Adding Essential Map Elements Finally, there are a few elements that are considered fundamental to good mapmaking. While it is true that ALL maps do not need ALL of these elements (Does a map of the entire earth really need a north arrow?), it is also true that they can be critical tools in conveying spatial messages, when used properly. Here, we will take the final steps to complete our map layout, before exporting to portable formats. Map Title 1. On the Main Menu, Go To Insert>Title. A Highlighted Text Box will be inserted into the Map Layout. 2. Double-Click on the Text Box to Open its Properties. 3. Change the Text to Child Lead Exposure in Missouri using carriage returns to Insert line breaks. 4. Leave all other Settings at their Default, but note that there are many options for altering the title text. 5. Click OK. 6. Use the Select Elements Tool to Move the Map Title to an appropriate position above the Data Frame. North Arrow 1. On the Main Menu, Go To Insert>North Arrow. 2. In the North Arrow Selector, Select the first North Arrow in the list. 3. Click Ok. A highlighted North Arrow will be inserted into your Map Layout (probably at the worst possible place). 4. Use the Select Elements Tool to Move the North Arrow to a more appropriate part of the map. 5. If necessary, or desired, you can Use the Blue Resize Handles to Change the Dimensions of the North Arrow. 6. Since the North Arrow is an Object, you can Access its Properties by Right-Clicking and Selecting Properties. Scale Bar 1. On the Main Menu, Go To Insert>Scale Bar. 2. In the Scale Bar Selector, Select the first Scale Bar in the list. 3. Click OK.
Geog_And_Epid.Doc Page 18 of 21 A highlighted Scale Bar will be inserted into your Map Layout (probably at the worst possible place). 4. Use the Select Elements Tool to move the Scale Bar to the bottom of the map layout. 5. Right-Click on the Scalebar and Open the Properties Dialog. 6. Change the Division Units to Miles. 7. Click Ok to Apply the Changes. Legend 1. On the Main Menu, Go To Insert>Legend to Open the Legend Wizard. 2. Highlight and Remove all layers from the Legend Items List Using the < Button. 3. Add the MO_Child_Lead_EX_with_Counts and MO_Lead_Releases_with_dist2hydro Layers back to the Legend Items List. 4. Click Next twice. 5. Select a 1pt Frame. 6. Select a White Background. 7. Click Next. 8. Change the Area Patch to the Urbanized Area shape. 9. Click Next. 10. Accept the default settings for the final window and Click Finish. 11. Using the Select Elements Tool, Move the Legend to the lower right corner of the map layout. 12. Use the Resize Handles to make the Legend smaller. 13. In the Table Of Contents Panel, Click once on the MO_Child_Lead_EX_with_Counts Layer Name, Wait, then Click Again to Highlight the Text.
Geog_And_Epid.Doc Page 19 of 21 14. Change the Name of the layer to Child Lead Exposure. 15. In the Table Of Contents Panel, Click once on the MO_Lead_Releases_with_dist2hydro Layer Name, Wait, then Click Again to Highlight the Text. 16. Change the Name of the layer to Lead Release Sites. 17. Finally, use the Select Elements Tool to arrange your layout. Note that the text changes with the alteration of the Table of Contents Panel. Neatline Finally, we will insert a neatline around all of the Map Elements as a way to finish the map, but also to control the clipping that will occur when we export to JPEG. 1. On the Main Menu, Go To Insert>Neatline to Open the Neatline Wizard. 2. Select a 4pt Border. 3. Select a Hollow Background. 4. Make Sure that the Place Around All Elements Radio Button is Checked. 5. Click Ok. Other Essential Map Elements Other elements are warranted when creating a map and have been neglected here only for expedience. These elements are primarily textual, and can be included using a procedure similar to that used to insert the Map Title. Date the map was made Author of the map Who the map was made for Projection / Coordinate System information Data Source(s) Descriptive Text (if necessary) Location (in the title, or using an inset map)
Geog_And_Epid.Doc Page 20 of 21 Sharing Your Map Project At this point, you might like to export your map to an image that you can use in PowerPoint or a Word Document. Or, you might want to save the map in a format that you can send to colleagues to view or print. Here you will learn to export your map. Exporting to JPEG 1. Save your work by Clicking the Save Button. 2. On the Main Menu, Go To File>Export Map. 3. Browse to the C:\temp\your_initials\Geology_and_Health\ Folder 4. Change the Save as Type: Drop-Down to JPEG (*.jpg). 5. Set the Resolution to 150 dpi. 6. Check the box to Clip Output to Graphic Extent. 7. Click on the Format Tab, under Options. 8. Make sure that the Color Mode is set to 24-bit True Color. 9. Name the Export file tutorial.jpg and Click Save. 10. Browse to the C:\temp\your_initials\Geology_and_Health\ Folder to Open the tutorial.jpg. Exporting to PDF 1. On the Main Menu, Go To File>Export Map. 2. Do Not Check the Clip to Graphics Extent box. 3. Change the Save as Type Drop-Down to PDF (*.pdf). 4. Click on the Format Tab 5. Check the Format Options as shown on the right. 6. Click Save. 7. Browse to the C:\temp\your_initials\01-Introduction to ArcGIS\ Folder and double-click on the Intro_to_ArcGIS.pdf to Open it.
Geog_And_Epid.Doc Page 21 of 21 Setting Relative Pathnames & Making ArcMap Projects Portable By setting Relative Pathnames in File>Map Properties>Data Source Options, you can move your ArcMap Project Folder as a single unit, preserving the location of your data files relative to your MXD document, without breaking the internal links to the datasets. You can also Zip the folder and send it through the email to colleagues. 1. On the Main Menu, Go To File>Document Properties. 2. Click on the Data Source Options Button. 3. Set the Option to Store relative path names to data sources. 4. Check the Make relative paths the default for new map documents I create Checkbox, if it is not already. 5. Click Ok. 6. Click Ok. You can now move your project by copying or zipping the C:\temp\your_initials\01-Introduction to ArcGIS\ Folder, in its entirety, without having the problem of broken links that we experienced at the beginning of the tutorial. ArcCatalog & Project Management Create a main Project Folder for your GIS analysis project. Under this main folder, create a Data folder, under which you should create a series of subfolders for each type of data you are using, or creating in your project (shapefile, raster, image, tables, etc ). For complex projects, you may even find it helpful to create further divisions (original, working, final, etc ) within each of your data subfolders to contain the multiple versions of data files that can accumulate during the course of a GIS project. MXD Map Documents are very small! You can save many versions of a project by saving multiple Map Documents. This allows you to save several layout versions of the same data without using a great deal of disk space. ArcMap supports long filenames for MXD Document, table and shapefile names. Use this to your advantage by giving these files very specifically descriptive names. Coverage and raster filenames are limited to 13 characters. Congratulations! You are now ready to explore ArcMap on your own! If you are interested in additional training materials, or just need help with a specific GIS related issue, feel free to contact us at the Yale Map Collection!