manual 9 3
TRANSCRIPT
May 2009 This training session provides an overview of ArcGIS, and the basic functionality of ArcMap and ArcCatalog. In Part‐1, we will go over what is GIS and why to use GIS, what is ArcGIS Desktop, ArcView and its components, system requirements, and overview of some resources ‐ open source, tutorials and datasets. In Part‐2, we will go over ArcMap and ArcCatalog and their interfaces, how to open, connect to folder, add/remove data, examine layers, data and metadata, examine attribute table, understand Data View and Layout View, finalize map and save/export the map.
Part‐1: Introduction to GIS What is GIS? Why GIS? What is ArcGIS Desktop? Key features of ArcView System Requirements ArcView Components:
- ArcMap - ArcCatalog - ArcToolBox
Some Resources: Available GIS products in the market:
- Major Companies, Open Source Tutorials:
- DSS, ESRI, NYU Courses Data Sources
Part ‐2: ArcMap and ArcCatalog ArcMap
- Launch application - Understanding the interface and its main features - Add and remove layers - View the data – attribute table - Examine layer properties - Understand workspace and Layout view - Finalize and save the map
ArcCatalog - Launch application - Understanding the interface and its main features - Connect to folder - Preview spatial data and metadata - Learn how to bring the data into ArcMap
Introduction to ArcGIS 9.3
What is GIS? – Geographic Information System
Definition: A geographic information system (GIS) integrates hardware, software, and data to capture, store, analyze, manage, and display various forms of geographically referenced information. Today’s GIS involves collaboration of various technologies and disciplines like geography, cartography, surveying, remote sensing, satellite imagery, photogrammetry, spatial statistics, mathematics, geometry, topology, computer science, information science, library science, web‐technology, etc.
Why GIS?
GIS ‐ ‐ integrates variety of data with a spatial component regardless of its source, ‐ stores and manages the data, ‐ analyzes the data as a whole and display it in various formats, ‐ leverages visualization to make critical business and planning decisions, and hence it saves tremendous time and money. Example:
‐ Point (landmark, tree, etc.) ‐ Line (street, river, stream, etc.)
‐ Polygon (land parcels, buildings, etc.) ‐ Topography (terrain, contours, etc.) ‐ Raster Image (satellite imagery, historic photos, etc.) ‐ Integrated representation and management of data
Applications: There are several applications of GIS technology. It can be used for urban planning, historic mapping, archeology, environmental studies, transportation studies, emergency management, health studies,
Part ‐ 1: Introduction to GIS
ecological studies, asset management, natural resource management, marketing, economic studies, demographic studies, crime‐stats mapping, affordable housing analyses, and many other purposes. For example: GIS can be used to map asthma rates of specific neighborhood in the city and its surrounding land‐use patterns. GIS can be useful to simulate disaster planning and to map evacuation routes and fastest routes for ambulances to reach to the emergency sites. GIS can be used to determine the best location for a super‐market to launch its business.
What is ArcGIS Desktop? ArcGIS Desktop is a GIS product created by ESRI (Environmental Systems Research Institute) that allows you to analyze your data and author geographic knowledge to examine relationships, test predictions, and ultimately make better decisions. It is a family of three products—ArcInfo, ArcEditor, and ArcView—that share the same core applications, user interface, and development environment. ArcGIS Desktop
Each product provides additional GIS functionality as you move from ArcView to ArcEditor to ArcInfo. Key Features of ArcView:
- ArcView allows performing basic visualization (map authoring), spatial query, editing and data integration, and basic modeling and analysis of your data.
Visualization:
o Map authoring: e.g. predefined map templates to save time, easy to create a consistent style maps, etc.
Spatial query: o e.g. measure distances and areas, find features in the map, select data by location or
attribute, switch the selection, access layer properties, etc.
e.g. Proximity analysis ‐ to find out which closest services.
Simple feature editing and data integration:
o e.g. create/edit point, line, and polygon features and attributes, integrate variety of data types including demographics, facilities, CAD drawings, imagery, web services, and multimedia.
e.g. quickly make changes to several features (records) at once.
Basic modeling and analysis: o e.g. model spatial relationships, generate charts/reports from findings, etc.
Ready‐to‐Use Datasets: o e.g. ESRI Data & Maps Media Kit, which is updated annually and preconfigured to
work specifically with ESRI software. Enabled for extensions:
o e.g. add even more capabilities ‐ Analysis, Productivity, and Solution‐based extensions perform extended tasks such as raster geoprocessing and three‐dimensional analysis.
System Requirements:
Platform: PC‐Intel Operating System: Windows Vista (Ultimate, Enterprise, Business, Home Premium), Windows
2000, or Windows XP (Home Edition and Professional) Memory: 1 GB RAM Processor: 1.6 Ghz
ArcView Components: ArcMap, ArcCatalog and ArcToolbox ArcMap: Integrated map display, editing, and production environment. ArcMap is used to display, query, edit, create, and analyze your geographically referenced data.
Example:
ArcMap compositions including charts and reports effectively communicate your message.
Various styles for legends, scale bars, north arrows, and other map design tools are readily available in the ArcMap environment.
Various styles for legends, scale bars, north arrows, and other map design tools are readily available in the ArcMap environment.
ArcMap: The power of ARCEDIT and ARCPLOT and more in one modern application.
The user‐friendly ArcMap environment helps you create straightforward reports of your data.
ArcCatalog: data management application ArcCatalog helps users to browse, search, explore, view, and manage data (with metadata creation and editing capabilities) and maps. It also helps GIS database administrators maintain spatial and tabular GIS data for use by others in their organization.
ArcCatalog interface: File/data types: ArcToolbox: geoprocessing tool. ArcToolbox helps users to perform geoprocessing operations such as data conversion, overlay processing, buffering, proximity analysis and map transformation. Each tool has a menu‐driven interface with wizards or dialogs.
Some Resources: Available GIS products in the market:
Major Companies - Autodesk - Bentley Systems - Intergraph - ERDAS. - ESRI - ENVI - MapInfo - Manifold System
Open Source:
- GRASS GIS - SAGA GIS - Quantum GIS - MapWindow GIS - ILWIS - uDig - gvSIG - JUMP GIS - Kalypso (software) - TerraView - Capaware
Tutorials: - Data Service Studio (DSS): Visit http://library.nyu.edu/dataservice for GIS tutorials offered by DSS.
- ESRI: Visit http://training.esri.com - NYU Courses:
Data Sources:
www.geodata.gov www.census.gov www.nyc.gov/html/dcp/html/bytes/applbyte.shtml http://www.nyc.gov/html/doitt/html/eservices/eservices_gis_downloads.shtml www.nysgis.state.ny.us CrimeStat (http://www.icpsr.umich.edu/CRIMESTAT/download.html) www.fountainware.com/compass
DSS, NYU‐Bobst ESRI – Datasets Geolytics ReferenceUSA
ArcMap: Launch Application: ArcMap can be launched by clicking Start>Programs>Statistics>ArcGIS>ArcMap ArcMap can also be launched by clicking on the icon on the Standard tool bar in ArcCatalog. Click on “A new empty map”
Understanding the interface and its main features:
- Title bar and toolbars, - Table of contents - Data Frame - Status bar
Part ‐ 2: ArcMap and ArcCatalog
Main Menu Toolbar Title Bar
Tools Toolbar Layout Toolbar
Standard Toolbar
Table of Contents Draw Toolbar Data View tab Status Bar
ArcToolBox Data Frame other toolbars Title bar and toolbars: Title bar: displays the name of the ArcMap document. Toolbars: contains many toolbars viz.
Main Menu: default tool bar with pull‐down menu that contains: File, Edit, View, Insert, Selection, Tools, Windows and Help. Click on these menus to select various options within each menu.
Draw: allows drawing and editing graphics/text on the map and layout. Layout: allows display, zoom and scale layouts. Standard: allows creating a new document, opening an existing document, saving and
printing a document, editing functions, adding/editing map and data, opening ArcCatalog and ArcToolbox, opening Model Builder, and activating help.
Tools: allows working with data view frame or work space viz. displaying, zooming, selecting, identifying, finding and measuring features and elements.
Several other toolbars can be made active by right‐clicking on the Main Menu toolbar or by clicking on the pull down Main Menu/View/Toolbars…
Table of Contents: displays and manages (group, ungroup, activate, access layer properties, etc.) all the layers (and its source) and symbology of the layers. Data Frame: work space that allows displaying and working with map/s. Data Frame displays maps as layers that are checked in the Table of Contents. Each displayed layer does not store the actual geographic data but it references data stored in shapefiles, geodatabases, etc. Status Bar: displays coordinates/units of the cursor in the Data View or Layout View. Layers: A layer contains information about how to display the dataset, but not the dataset itself. Each data frame contains one or
more layers. Any datasets you add to the map are represented as layers in the Table of Contents. Checking the box next to each layer will display the map elements. The order of the layers will display map elements in that order. Add and remove layers To add layers for display click on Add Data icon located on the Standard Toolbar. Navigate to the shapefile that you would like to connect to. For instance: Select “Cabins.shp, Roads.shp and Boundary.shp”. Multiple select by pressing ‘control’ key while selecting files). Highlight the file and click on Add button.
Notice that all the layers are added to the Table of Contents as well as displayed (if checked) in the Data View or Layout View (whichever is active). Every time you bring in any layer, it will be displayed with random colors and can always be changed. To remove the data, select the layer then right click on the layer and click on remove. View the data – examining the Attribute Table of the layer Select the layer and right click on the layer and then select open Attribute Table. Examine the table – rows corresponding columns.
Examine Layer Properties Right click on a layer and click on the Properties. This will display Layer Properties window. You can view, edit and change various properties of the layer. For instance,
- General tab allows changing the name of the layer, adding description and credits, and make the layer invisible at a certain scale.
- Source tab allows viewing the metadata and editing the data source of the layer. Selection tab allows customizing selection symbology.
- Display tab allows changing transparency of the layer. - Symbology tab allows customizing and importing symbology of the layer via Features,
Categories, Quantities, Charts and Multiple Attributes. Fields tab allows displaying fields. - Definition Query tab allows to write scripts to query the data via Query Builder. - Labels tab allows displaying, changing symbology, and defining placement, scale and style of
the labels. - Join & Relates tab allows joining and relating various datasets. - HTML Popup tab allows showing the content of the layer using HTML Popup tool.
Understand Data View (workspace) and Layout view Data View allows displaying, editing, analyzing and working geographic data. Layout View allows preparing finished maps for printing and publishing.
Three ways to switch between Data View and Layout View: 1. Click on the View tab of Main Menu toolbar and then click on Data View or Layout View. 2. Click on for Data View, and click on for Layout View.
3. Click on the icons on the Layout toolbar for Data View, Layout View
and to switch between the two.
Finalize and save the map On the Layout View, you can insert toolbar title, legend, scale and north arrow, via Insert tab on Main Menu, to finalize the map. Save the map by clicking on the File tab on the Main Menu toolbar. The Save dialogue box will pop up. Name the document, navigate to the location and click Save. The map will be saved as ArcMap Document (.mxd), which will contain all the working layers and referenced data. To save the map as PDF or JPG, click on File tab on the Main Menu toolbar and click on Export Map. Navigate to the location, select the type as PDF or JPG from pull down menu, and click Save. ArcCatalog Launch Application: ArcCatalog can be launched by clicking Start>Programs>Statistics>ArcGIS>ArcCatalog ArcCatalog can also be launched by clicking on the icon on the Standard tool bar in ArcMap. Understanding the interface and its main features
- Toolbars - Catalog Tree and Contents/Preview/Metadata window
Main Menu toolbar Standard toolbar
Catalog Tree Contents/Preview/Metadata window
Toolbars: contains many toolbars viz.
Main Menu: default tool bar with pull‐down menu that contains: File, Edit, View, Go, Tools, Windows and Help. Click on these menus to select various options within each menu.
Standard: allows connecting to any folders on hard drive as well as folders on the network drives, disconnecting from folder, copying, pasting, deleting, viewing and searching files and folders. It also allows launching of ArcMap, Arc Toolbox, Command Line Window, Model Builder and Help.
Catalog Tree: displays all connected files and folders, and their directory tree. C/P/M Window: allows examining name and type of the file, previewing content (geography and tabular data) and viewing metadata of the file. Connect to Folder Click on the File tab on the Main Menu toolbar and select Connect to Folder or Click on the icon Navigate to the desired folder in the Connect to Folder dialog box and click OK. For instance, C:\Users\Poonam\Documents\Him
Notice that ‘C:\Users\Poonam\Documents\Him’ will appear in the Catalog Tree along with the sub‐folders within Him folder.
Preview spatial data and metadata Select the shape file in the Catalog Tree to preview its spatial data and meta data. For instance, select Lakes in the Catalog Tree.
Click on the Content tab in the C/P/M Window to view the name of the file and the type of the file.
Click on the Preview tab in the C/P/M Window. Click on Geography tab from the pull down menu at the bottom of the C/P/M Window to view the physical shape of the file. Click on the Table tab from the pull down menu at the bottom of the C/P/M Window to view the tabular data associated with that geography/shape.
Click on the Metadata tab in the C/P/M Window to view the metadata of the file. Description tab displays brief description (Abstract, Purpose, Supplemental Information, Place, Status of the Data, Time Period, etc.) about the shape file. Spatial tab displays information about various coordinate systems used to create the shape file, coordinates, and sources of the file. Attributes tab displays features and attributes of the data associated with the shape file.
Bring the data into ArcMap Launch ArcMap and display the window to full extent. Make the ArcCatalog window smaller than ArcMap such that ArcCatalog window floats on the ArcMap window. Select one layer or multiple layers by use of Shift and Control keys from the C/P/M Window. Once the layers are selected, drag and drop them in the Table of Contents window of the ArcMap. Alternatively, you can add data from ArcMap by clicking on the icon located on the Standard Toolbar. Source: ESRI.com