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Intro to GIS

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by

Charles Gibbons

on 21 July 2015

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Transcript of Intro to GIS

Intro to GIS
GIS
Geographic Information Systems
What does that really mean...?
Map Symbology
Urban Economics has partnered with ESRI to offer an ArcGIS License and training

BakerHostetler would like to utilize ArcGIS for FDOT Right-of Way Projects

I DO NOT expect you to be an expert by Wednesday...so relax.
A suite of tools used to capture, store, manipulate, analyze, manage, and present all types of geographical data.

This is the power of GIS
Putting data in space

Representations of the real world
GIS puts data into "stackable" thematic layers
Vector Data
Raster Data
Points
Lines
Polygons
Good for general cartography. Most available GIS data is in vector format.
Cell based. Like a pixel.

Used in imagery and modeling
What is it?
Nuts and Bolts
Data is the Key
Underlying database/attribute table

Each spatial feature is linked to a record in the attribute table.

Gives users access to information in space.
Segments of ArcGIS
ArcMap
ArcToolbox
ArcCatalog

"Application you use to visualize and edit geographic data, perform GIS analysis, and create professional-quality map products."
Application used to browse, manage, and document geographic data.

"The window into your GIS database".
Provides an organized collection of tools used for GIS analysis, data management, data conversion, etc.
GIS Solves Problems
6:30AM-Your alarm goes off You get up and turn on the lights.
Your clock radio and lights are powered with household electricity. Electric utility companies serving millions of customers use GIS to manage their complex infrastructure, which consists of transmission and distribution lines and utility poles.

7:00 AM-You make a pot of coffee.
The water the coffee is made with is provided by a water utility company. The utility uses GIS for customer service, emergency response, water distribution, infrastructure maintenance, automated mapping, network tracing, flow analysis, and other aspects of engineering, operations, administration, and finance.

7:30-You drive to work.
The community uses GIS for managing its transportation infrastructure. More than 80 percent of the information used to manage road, rail, and port facilities has a geographic component.

And you haven't even gotten to work yet...
The ArcMap Interface

Metadata
"Data about data"
Getting Your Feet Wet
Points, Lines, & Polygons
Labels
Enough From Me...
Let's get the ball rolling with Exercise 1.
Further Down the Rabbit Hole
Examples
Categories
Quantities
Exercise 2

Let's get to it.
Diving Deeper
What am I doing here?!
Goals
Comfortable with GIS
Use its basic functions
Maybe even make a map.
Geographic Data Models
Rasters
Vectors
Points - a single x,y coordinate pair.
Lines - two or more x,y coordinate pairs.
Polygons - lines that close to form the polygon boundaries.
Attribute Queries

Making Maps
BakerHostetler - Training Session
7/29-7/30

Storing Spatial Data
Geodatabases
Shapefiles
Raster Data
New data standard for ESRI

"Container" for all spatial datasets
Majority of data you find will be Shapefiles

Actually a collection of 6 files


Data will come as typical image formats
.tif, .sid, .jpeg

Also contain a spatial reference component
Thematic Features
.MXDs
Map Documents

Saving does NOT affect spatial data (Shapefiles, rasters, etc.)
Exercise 3
You know what to do...
Used to find features that have a particular set of attribute values
Result is a set of selected features
Utilizes basic SQL
Location Query
Finds features based on their locations relative to other feature.

There are four main types of feature location relationships
Near (within a distance of)
Adjacent to
Intersect
Inside
Identify
and
Interactive Selection
Exercises 4 & 5
Select, select, select...
Know your audience
What am I trying to say?


Legend — explains the symbology used in the map body. Without a legend, the map's audience may not understand what the symbols mean.

Title — conveys the map's subject to the audience.

Scale — the map scale can be numeric (1:10,000), verbal (1 inch equals 10,000 inches), or graphic (a scale bar).

North arrow — shows a map's orientation (how the features in the map relate to north).
Sources of the data shown in the map
Map projection
Name of the map creator or organization
Date of publication
Informative text about the map's subject or purpose
A graph, table, or report based on the data in the map
A neatline (graphic border) that helps to group the map elements together
Internal borders that categorize or rank the map elements
Images, such as a company logo or an aerial photo
All maps should have:
The best maps have:
Exercise 6
The home stretch.
What's Next?
GIS/Geospaital Technologies
These Sessions
Projections, coordinate systems, georeferencing.
Joins and Relates
Geoprocessing
Spatial Joins
Creating and editing data
Spatial statistics and analysis.
Creating Metadata
Congratulations, you survived.

Google and ESRI Help are your friends.

More training available if anyone is interested

I will be back for the FDOT/ROW training
Live Demo...
Brian walks in and asks...

"I need you to find all of the vacant commercial properties within 1.5 mile of any airport (no helipads, seaplane basins, etc) in Orange County."


"Oh, and make me a map of the properties near Orlando Executive"
Full transcript