GIS Merge.

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Published on December 4, 2008

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Lunchless Learn : Lunchless Learn First Encounters of the GIS Kind: An Introduction to the Basics of Geographic Information Systems Agenda : Agenda What is GIS? Planning a trip to San Diego The Basics Q & A Session Evaluation What if I have questions? : What if I have questions? Feel free to ask questions throughout the session – just raise your hand There are no stupid questions (trust us!) One voice at a time please! Geographic Information Systems (GIS) : Geographic Information Systems (GIS) GIS is everywhere! Used everyday Used worldwide With GIS you can… : With GIS you can… Manage the environment Work more efficiently Provide better customer service Save money You can use GIS to: : You can use GIS to: Create maps Find information How? Why? Create & edit data Solve problems Learning Objectives : Learning Objectives A student who completes this module will be able to: explore a GIS map and get information about map features describe the structure of a GIS map explain how a GIS represents real-world objects access feature information describe spatial relationships of map features describe how GIS can be used to solve problems First Encounter with ArcGIS – Planning a Trip to San Diego : First Encounter with ArcGIS – Planning a Trip to San Diego Step 1 – Start ArcMap Open ArcMap Click Start Button – All Programs – ArcGIS – ArcMap First Encounter with ArcGIS : First Encounter with ArcGIS Step 1 – Start ArcMap Open ArcMap Click Start Button – All Programs – ArcGIS – ArcMap Open c:\temp\VirtualCampus\LearnArcGIS9\ Start\tourism.mxd Slide 11: Table of Contents Page Layout Window Slide 12: Step 2 – Explore United States Map Activate the United States Map Right click on United States in Table of Contents – Choose Activate Slide 14: Step 2 – Explore United States Map Activate the United States Map Right click on United States in Table of Contents – Choose Activate Turn on/off State Data Uncheck/check box next to States Layer Slide 16: Step 3 – Zoom in to San Diego Activate the San Diego Map Right click on San Diego in Table of Contents – choose Activate Slide 18: Step 3 – Zoom in to San Diego Activate the San Diego Map Right click on San Diego in Table of Contents – choose Activate To see more details of San Diego Zoom in using Zoom In tool Slide 20: Step 3 – Zoom in to San Diego Activate the San Diego Map Right click on San Diego in Table of Contents – choose Activate To see more details of San Diego Zoom in using Zoom In tool With Zoom still active click centre of map Type 50000 into the Scale box Slide 22: Step 3 – Zoom in to San Diego Activate the San Diego Map Right click on San Diego in Table of Contents – choose Activate To see more details of San Diego Zoom in using Zoom In tool With Zoom still active click centre of map Type 50000 into the Scale box Use Pan tool and click and drag Slide 24: Step 4 – Switch to Data View and Label Hotels Switch to Data View window Slide 26: Step 4 – Switch to Data View and Label Hotels Switch to Data View window Turn on Hotels so they are viewed on Map Table of Contents – check box next to Hotels Get Hotel name Zoom into cluster of hotels on coast – click the Select tool and place mouse over hotel symbol Slide 27: HYATT REGENCY HOTEL Slide 28: Step 4 – Switch to Data View and Label Hotels Switch to Data View window Turn on Hotels so they are viewed on Map Table of Contents – check box next to Hotels Get Hotel name Zoom into cluster of hotels on coast – click the Select tool and place mouse over hotel symbol Turn on the names of all Hotels at once Right click on Hotels in Table of Contents – choose Label Features Slide 30: Step 5 – Find Hotel and get Information about it Find all Marriott Hotels in San Diego Click Find tool – In Find Field type Marriott - Click dropdown arrow next to In and choose Hotels – Click Find Slide 32: Step 5 – Find Hotel and get Information about it Find all Marriott Hotels in San Diego Click Find tool – In Find Field type Marriott - Click dropdown arrow next to In and choose Hotels – Click Find Find Marriott Suites Hotel on Map Right click on Marriott Suites Hotel – Click Flash Feature Slide 34: Step 5 – Find Hotel and get Information about it Find all Marriott Hotels in San Diego Click Find tool – In Find Field type Marriott - Click dropdown arrow next to In and choose Hotels – Click Find Find Marriott Suites Hotel on Map Right click on Marriott Suites Hotel – Click Flash Feature Get Telephone number of Hotel In Find Dialogue right click Marriott Hotel and Marina – choose Identify Feature Slide 36: Step 5 – Find Hotel and get Information about it Find all Marriott Hotels in San Diego Click Find tool – In Find Field type Marriott - Click dropdown arrow next to In and choose Hotels – Click Find Find Marriott Suites Hotel on Map Right click on Marriott Suites Hotel – Click Flash Feature Get Telephone number of Hotel In Find Dialogue right click Marriott Hotel and Marina – choose Identify Feature Select Hotel Find Dialogue - Right click on Marriott Hotel and Marina - Choose Select Feature Slide 38: Step 6 – Get Info on Major Attractions Show Major Attractions Table of Contents – Check Major Attractions – right click choose Open Attribute Table Slide 40: Step 6 – Get Info on Major Attractions Show Major Attractions Table of Contents – Check Major Attractions – right click choose Open Attribute Table Sort Table Scroll through attributes – Right click on Name field – choose Sort Ascending Slide 42: Step 6 – Get Info on Major Attractions Show Major Attractions Table of Contents – Check Major Attractions – right click choose Open Attribute Table Sort Table Scroll through attributes – Right click on Name field – choose Sort Ascending Find Seaport Village Scroll through list until you find Seaport Village – click grey box left of record Close Table Slide 44: Step 7 – Measure Distance Between Features Zoom into area with Hotel and Seaport Village Measure Distance Click Measure Tool - single click on Marriott Hotel and Marina – move mouse over Seaport Village – double click and check distance Slide 46: Step 8 – Find Attractions and Determine Method of Transportation Clear Selected Features Selection menu – choose Clear Selected Features Slide 48: Step 8 – Find Attractions and Determine Method of Transportation Clear Selected Features Selection menu – choose Clear Selected Features Show map of San Diego View menu – Bookmarks – San Diego City Turn off Major Roads Table of Contents – Uncheck Major Roads Slide 50: Step 8 – Find Attractions and Determine Method of Transportation Clear Selected Features Selection menu – choose Clear Selected Features Show map of San Diego View menu – Bookmarks – San Diego City Turn off Major Roads Table of Contents – Uncheck Major Roads Label Major Attractions Table of Contents – right click Major Attractions – choose Label Feature Slide 52: Step 8 – Find Attractions and Determine Method of Transportation Clear Selected Features Selection menu – choose Clear Selected Features Show map of San Diego View menu – Bookmarks – San Diego City Turn off Major Roads Table of Contents – Uncheck Major Roads Label Major Attractions Table of Contents – right click Major Attractions – choose Label Feature Get details on the closest Trolley Stops Click Identify tool - Layer Dropdown choose Trolley Stops – on map click stop closest to Qualcomm Stadium – close Identify window Slide 54: Step 9 – Use Hyperlink for San Diego Zoo Website Zoom to San Diego Zoo Find San Diego Zoo – Zoom in tool Access San Diego Website info through Hyperlink Click Hyperlink tool - click on San Diego Zoo symbol on map Slide 56: Step 10 – End ArcMap Session Close ArcMap File menu – choose Exit – Click no when asked if you want to save data Exploring a GIS map : Exploring a GIS map Dynamic Zoom, pan, resize Add/remove features Change symbolization Access database of information How is a GIS map organized? : How is a GIS map organized? Data frames Thematic layers Features How is a GIS map organized? : How is a GIS map organized? Features have: Location Shape Symbol Features grouped in a layer have: Same shape Same characteristics AND they are located within the same geographic extent Layers : Layers Contain features located within the same boundary Each represents a distinct "theme" Are drawn on top of each other to create an informative GIS map Representing the real world : Representing the real world Point Line Polygon One coordinate pair Sequence of 2 or more coordinate pairs One or more lines whose start and end coordinate pairs are the same GIS world – 3 types of features: Representing the real world : Representing the real world In this map of South America… What are countries represented as? Rivers? Cities? Representation* : Representation* Polygons Lines Points objects with boundaries countries, building footprints, lakes objects too narrow to be polygons streets, rivers, telephone lines objects too small to be polygons cities, trees, hospitals * Depends on map scale Linking features to information : Linking features to information For a road For a city Name Speed Direction (one-way or two-way) Population Average monthly temperature Number of schools More than just location and shape Information associated with feature Feature attributes : Feature attributes Types or categories of information Stored in attribute table Each feature is a record (row); Each attribute is a column or field Same layer, same attribute table Feature attributes : Feature attributes This attribute table for a layer of cities stores each feature's ID number, shape, name, the country in which it's located, and its status. Feature attributes : Feature attributes Features are linked to attributes by a unique numerical identifier (ID) Every feature has an ID One-to-one relationship between feature, identifier and attribute record Feature attributes cont’d : Feature attributes cont’d Click feature on map – see attributes in table Select record in table – selects feature on map Ask questions of attribute table – display answer on map Example : Example The city of Bombay is selected. Its record is also selected in the attribute table. The unique identifier for Bombay is stored in the FID field. Understanding Map Scale : Understanding Map Scale Scale - the relationship between size on the map and size in the real world Expressed as a ratio, or representative fraction (RF) A scale of 1:50,000 means one unit on the map equals 50,000 units on earth. It also means that the objects on earth are 50,000 times larger than the features on the map. Map Scale : Map Scale Two types: Large-scale Small-scale Examples? Covers a small area in more detail Covers a large area in less detail Map Scale samples : Map Scale samples Credits : Credits This demonstration was created using course materials from ESRI’s Virtual Campus. If you are interested in taking more Virtual Campus courses, please contact the GIS Centre. GIS Centre : GIS Centre Located at the back of the Learning Commons on the first floor of the Killam Library Jennifer Milne Jennifer.Milne@dal.ca 494-6719 Jennifer Strang Jennifer.Strang@dal.ca 494-1386

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