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Introduction to GIS


Title: Introduction to GIS Training Slides Author: Aguilar Last modified by: Javier Aguilar Created Date: 4/16/2010 5:14:57 PM Document presentation format – PowerPoint PPT presentation

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Title: Introduction to GIS

Introduction to GIS
  • Your name
  • Where you work
  • Your professional field
  • Have you used GIS before?
  • What we expect to get from this training?

Course Times
  • 900 AM to 1145 PM (Morning Session)
  • 1145 AM to 100 PM (Lunch Break)
  • 100 PM to 400 PM (Afternoon Session)

Course Schedule
  • Morning Session
  • Introduction to GIS
  • Demo Execerise
  • Navigate ArcMap
  • Attribute and Location Queries
  • Afternoon Session
  • Navigate ArcCatalog
  • Compose Maps
  • Edit and Create Data

Introduce SCAG GIS Pilot Program
  • Topics Background
  • Local Input
  • SED and forecast info
  • Review, revise, and update planning data
  • Challenges
  • Lack of GIS capability to share info in
    standardized form

SCAG GIS Pilot Program
  • Topics Background
  • SB 375
  • Combine land use decisions with transportation
  • The most updated and current info

SCAG GIS Pilot Program
  • Topics Goals
  • Promoting use of GIS technology by
  • data sharing
  • data updating
  • Enhance region-wide GIS data standardization
  • Establish solid relationship

SCAG GIS Pilot Program
  • Topics Implementation process
  • The program began in the Mid of January, 2010
  • 58 local jurisdictions participating
  • One on One meeting to collect City GIS info

So what is mapping ?
  • Location, Location, Location
  • Almost everything that happens, happens
    somewhere. Knowing where? and why? something
    happens why do I care? is critically important!

Pin map
Geography is the Science of Our World
Increasingly Being Seen as a Framework for
  • Understanding
  • Patterns
  • Relationships
  • Processes
  • Conceptualizing
  • Modeling
  • Visualizing

. . . Integrating What We Know
Data - Data - Data Weve all got data
  • Location Data
  • -- How Many -- What Kind -- Where
  • Scale of Data
  • -- Local to Global
  • Data Presentation
  • -- Words, Charts, Graphs, Tables, or Maps
  • Exploring data using GIS turns data into
    information into knowledge

How is information normally seen?
How do you see your data?
Visualization Worth a Thousand Words
What is GIS?
  • A method to visualize, manipulate, analyze, and
    display spatial data
  • Smart Maps linking a database to a map

What is GIS?
  • A geographic information or geographical
    information system (GIS) is a system for
    creating, storing, analyzing and managing spatial
    data and associated attributes.
  • Data Accuracy and availability.
  • Hardware Performance of GIS functions
  • Software GIS and other support software
  • People The most component in a GIS. The people
    who create and manipulate the system to
    produce products

GIS a spatial blend of location information
  • Spatial location- usually geographic location
  • Information visualization of analysis of data
  • System linking software, hardware, data
  • Personnel a thinking explorer with procedures
    using GIS to manipulate, analyze and present

GIS is a TOOL!
  • Displaying and editing data
  • Querying and analyzing data
  • Charting and reporting data
  • Creating layouts

A tool that you apply
Components of a GIS
Combining Data From Many Sources
Data For GIS Applications
  • Business, Survey, Demographic
  • Purchased, donated, free (Internet)
  • Created by user
  • Databases -- Tables of data (such as address,
    permit, etc..)
  • GPS -- Global Positioning System
  • Accurate locations
  • Remote Sensing and Aerial Photography

Where is GIS used?
  • Planning for government, education, military
  • Environmental Monitoring Modeling
  • Public Safety Fire, police medical
  • Homeland security (first responders are local
  • Business Industry Site Location, Delivery
  • much, much more

Concepts are most important Software can be
learned more easily
  • What remains constant
  • GIS is a powerful tool
  • Mapping for Visualization
  • Spatial Analysis
  • What changes frequently
  • Data formats
  • User interfaces, inclusion of additional
    capabilities (e.g., 3D, spatial statistics)

GIS strengths
  • More efficiently visualized updates
  • Easy and effective display
  • Good database management system for spatial
  • Able to integrate data from many different
    sources (but)

GIS Weaknesses
  • Cost and difficulty of database creation
  • Higher accuracy, higher costs
  • Integration of data from diverse sources can
    result in poor overall accuracy if not well

ArcGIS Desktop Licensing
  • ArcGIS is comprised of three levels of Licensing
  • Arcview,
  • ArcEditor,
  • Arcinfo
  • Tool availability is dependant upon licensing
  • Extensions have to be purchased at extra cost and
    do not come with the three basic licensing types

What is ArcGIS Desktop ?
  • ArcGIS Desktop is an integrated suite of advanced
    GIS applications and interfaces, including
    ArcMap, ArcCatalog, ArcGlobe, ArcScene,
    ArcToolbox, and ModelBuilder. Using these
    applications and interfaces, you can perform any
    GIS task, from simple to advanced, including
    mapping geographic analysis data
    editing,compilation, and management
    visualization and geoprocessing. ArcGIS Desktop
    is scalable to meet the needs of many types of
    users. It is available at three functional
  • ArcView focuses on comprehensive data use,
    mapping, and analysis.
  • ArcEditor adds advanced geographic editing and
    data creation.
  • ArcInfo is a complete, professional GIS desktop
    product containing comprehensive GIS
    functionality, including rich geoprocessing

ArcGIS Extensions
ArcGIS Components
  • ArcMap is primary display application, and
    perform map-based tasks.
  • ArcCatalog is a window to browse and manage your
  • ArcToolbox is a set of tools for geographic
    process functions.

What is Arcmap
  • ArcMap is the central component in ArcGIS Desktop
    for all map-based tasks, including cartography,
    map analysis, and editing. ArcMap is a
    comprehensive map authoring application for
    ArcGIS Desktop.
  • ArcMap offers two types of map views a
    geographic data view and a page layout view. In
    geographic data view, you work with geographic
    layers to symbolize, analyze, and compile GIS
    datasets. A table of contents interface helps you
    organize and control the drawing properties of
    the GIS data layers in your data frame.

What is ArcCatalog
  • ArcCatalog helps you organize and manage all your
    GIS information (maps, globes, datasets, models,
    metadata, services, and so on). It includes tools
  • Browse and find geographic information.
  • Record, view, and manage metadata.
  • Define, export, and import geodatabase schemas
    and designs.

What is ArcToolbox
  • ArcToolbox is embedded in ArcCatalog and ArcMap
    and is available in ArcView, ArcEditor, and
    ArcInfo. Each product level includes additional
    geoprocessing tools. ArcView supports a core set
    of simple data loading and translation tools as
    well as fundamental analysis tools ArcEditor
    adds tools for geodatabase creation and loading
    and ArcInfo provides a comprehensive set of
    geoprocessing tools for vector analysis, data
    conversion, data loading, and coverage
    geoprocessing. ArcView provides more than 80
    tools in ArcToolbox, ArcEditor provides more than
    90, and ArcInfo gives you approximately 250.

Introduction to GIS
  • What is GIS?
  • GIS Software
  • Start Exercise

Introduction to GIS ArcMap
  • Data Frame (Map) properties
  • Settings for how map is displayed
  • Map units (feet, meters, miles, etc.)
  • Reference scale
  • Usually the scale that you will plot the map
  • Coordinate system
  • Automatically set to same coordinate system as
    first layer in table of contents.
  • Bookmarks
  • Create custom views of your map

Introduction to GIS ArcMap
  • Layer properties
  • Settings for how layers are displayed
  • Scale dependent display
  • Controls which scale a layer is visible
  • Data source
  • Symbology
  • Definition query
  • A SQL Expression that controls which features are
    visible in a layer
  • Labels

Introduction to GIS ArcMap
  • Data sources
  • Data layers are not embedded in the ArcMap
  • Data layers reference .shp files, geodatabase
    feature classes, coverages, CAD files or images
  • Standalone tables including .dbf, Excel or
    geodatabase tables.

Introduction to ArcMap
  • Find Parcel 047-332-002
  • What land use is it? (identify)
  • Find intersection Address
  • Duarte St. and Eastern Ave.
  • What water feature is near the parcel?
  • Find 231 W Main (label by right click)
  • Measure ROW (measure tool)
  • Find Coordinate
  • Lon -115.5165, Lat 32.9916
  • Whats the location?

Introduction to GIS ArcMap
  • ArcMap
  • Selecting features
  • Set selectable layers
  • Selection tool
  • Add/remove features from selection set
  • Switch selection

Introduction to GIS ArcMap
  • Selecting features using Queries
  • Select by Location
  • Uses geographic relationships of data to select
  • e.g. Select parcels within city boundary
  • Select by Attribute
  • Uses a SQL expression to select features in the
    attribute table.
  • e.g. Select commercial parcels
  • Use Statistics
  • What is total?
  • Whats average size?

Introduction to GIS ArcMap
  • Exercise Combination query, attribute and
  • How many residential parcels within 1 mile of
    airport? (1,318)
  • Create New Data
  • Open Attribute Table
  • Create Field and Calculate Sq. Ft.
  • Export to Dbf.
  • Open in MS Excel

Introduction to GIS ArcMap
  • Session II

Introduction to GIS ArcCatalog
  • Browse and preview data
  • .shp
  • Geodatabase feature classes
  • CAD
  • Image
  • Tables
  • Connect to data
  • Metadata
  • Metadata Editor
  • Thumbnails

Introduction to GIS XY Data
  • Open Text file for La Puente
  • Open file in MS Excel
  • Add data
  • City Boundary
  • Apply a definition query to a layer
  • Add Streets

Introduction to GIS Creating a Map
  • Add data
  • City Boundary
  • Apply a definition query to a layer
  • Add Land use and Symbolize layers
  • Default symbology
  • Import Layer
  • Add Street and group links

Introduction to GIS Creating a Map
  • Create labels with labeling tool
  • Label classes
  • Freeway
  • Highway
  • Major Arterials
  • Minor Arterial
  • Create a Bookmark
  • City Limits
  • Exercise
  • Find Address 401 S. Ventura Street Ojai, CA
    93024 Create Bookmark
  • Make shape file and buffer
  • Make Land use transparent
  • Bring in Aerial from ESRI

Introduction to GIS Creating a Map
  • Create a layout
  • Add map surrounds
  • North arrow
  • Scale bar
  • Legend
  • Title Block
  • Export to .pdf

Introduction to GIS Creating data
  • Optional, if time permits
  • Open ArcCatalog
  • Create Geodatabase
  • Create new domain in geodatabase
  • Create new feature class
  • Apply domain to field in feature class attribute

Introduction to GIS Editing data
  • Optional, if time permits
  • Edit a feature class
  • Add a new feature
  • Edit a feature attribute
  • Edit a feature shape

  • Javier Aguilar
  • (213) 236-1845

Thank you for coming