The document discusses Geographic Information Systems (GIS) and presents information on:
- The history and definition of GIS and how it allows users to integrate and analyze spatial data layers.
- Types of GIS software including desktop GIS like QGIS, web-based GIS, and geobrowsers like Google Earth.
- Features of GIS like handling large datasets, data integration and unique analysis methods.
- An example project mapping electrical assets in India using tools like QGIS, Google Earth, and the MAPinr app.
Gis Geographical Information System FundamentalsUroosa Samman
Gis, Geographical Information System Fundamentals. This presentation includes a complete detail of GIS and GIS Softwares. It will help students of GIS and Environmental Science.
This presentation is about the raster and vector data in GIS which is important and costly as well, through the presentation we will learn about both type of data.
basic concept of geographic data,GIS and its component,data acquisition ,raster, vector formats,spatial data,topology and data model data output ,GIS applications
Gis Geographical Information System FundamentalsUroosa Samman
Gis, Geographical Information System Fundamentals. This presentation includes a complete detail of GIS and GIS Softwares. It will help students of GIS and Environmental Science.
This presentation is about the raster and vector data in GIS which is important and costly as well, through the presentation we will learn about both type of data.
basic concept of geographic data,GIS and its component,data acquisition ,raster, vector formats,spatial data,topology and data model data output ,GIS applications
An introduction to GIS Data Types. Strengths and weaknesses of raster and vector data are discussed. Also covered is the importance of topology. Concludes with a discussion of the vector-based format of OpenStreetMap data.
This is most benificial for the First year Engineering students.This presentation consists of videos and many applications of GIS. The processes and the other parts of GIS is also nicely explained.
Topics:
1. Introduction to GIS
2. Components of GIS
3. Types of Data
4. Spatial Data
5. Non-Spatial Data
6. GIS Operations
7. Coordinate Systems
8. Datum
9. Map Projections
10. Raster Data Compression Techniques
11. GIS Software
12. Free GIS Data Resources
When you georeference your raster data, you define its location using map coordinates and assign the coordinate system of the map frame. Georeferencing raster data allows it to be viewed, queried, and analyzed with your other geographic data. The georeferencing tools on the Georeference tab allows you to georeference any raster dataset.
In general, there are four steps to georeference your data:
Add the raster dataset that you want to align with your projected data.
Use the Georeference tab to create control points, to connect your raster to known positions in the map
Review the control points and the errors
Save the georeferencing result, when you are satisfied with the alignment.
Mumbai University, T.Y.B.Sc.(I.T.), Semester VI, Principles of Geographic Information System, USIT604, Discipline Specific Elective Unit 1: Introduction to GIS
An introduction to GIS Data Types. Strengths and weaknesses of raster and vector data are discussed. Also covered is the importance of topology. Concludes with a discussion of the vector-based format of OpenStreetMap data.
This is most benificial for the First year Engineering students.This presentation consists of videos and many applications of GIS. The processes and the other parts of GIS is also nicely explained.
Topics:
1. Introduction to GIS
2. Components of GIS
3. Types of Data
4. Spatial Data
5. Non-Spatial Data
6. GIS Operations
7. Coordinate Systems
8. Datum
9. Map Projections
10. Raster Data Compression Techniques
11. GIS Software
12. Free GIS Data Resources
When you georeference your raster data, you define its location using map coordinates and assign the coordinate system of the map frame. Georeferencing raster data allows it to be viewed, queried, and analyzed with your other geographic data. The georeferencing tools on the Georeference tab allows you to georeference any raster dataset.
In general, there are four steps to georeference your data:
Add the raster dataset that you want to align with your projected data.
Use the Georeference tab to create control points, to connect your raster to known positions in the map
Review the control points and the errors
Save the georeferencing result, when you are satisfied with the alignment.
Mumbai University, T.Y.B.Sc.(I.T.), Semester VI, Principles of Geographic Information System, USIT604, Discipline Specific Elective Unit 1: Introduction to GIS
Geosys GIS training programs aims to give a strong theoretical foundation and excellent hands-on skills to prepare participants explore careers in and meet the challenges of the GIS world
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Conception et Développement d'un Network Management System ATM NortelTidiane Sylla
Ce projet consistait à développer une application web sous ASP .Net pour gérer et superviser des commutateurs ATM Nortel de Tunisie Télécom en 2012. De ce fait ce projet comporte une partie création lien Frame Relay, Circuit aal1ces, etc, SNMP et backup automatique.
I had to give presentation on GIS as a part of my CEC marks so here I have included all the points which are there in my curriculum and its all about Geographical Information System - GIS.
A geographic information system (GIS) is a system designed to capture, store, manipulate, analyze, manage, and present all types of geographical data. The acronym GIS is sometimes used for geographical information science or geospatial information studies to refer to the academic discipline or career of working with geographic information systems and is a large domain within the broader academic discipline of Geoinformatics. In the simplest terms, GIS is the merging of cartography, statistical analysis, and computer science technology.
GIS (Geographic Information System): is computer assisted system used for collecting, storing, retrieving at will, transforming and displaying spatial data from the real world for a particular set of purpose.
Perhaps the most important component of a GIS is in the part of data used in GIS. The data for GIS can be derived from various sources. A wide variety of data sources exist for both spatial and attribute data.
Presentation from 2009 LandmanXchange Conference in Dallas, TX. Provides the concept and need for GIS and GPS in Land Services, Land Management, and Surface or ROW management.
Mumbai University, T.Y.B.Sc.(I.T.), Semester VI, Principles of Geographic Information System, USIT604, Discipline Specific Elective Unit 2: Data Management and Processing System
Check out the webinar slides to learn more about how XfilesPro transforms Salesforce document management by leveraging its world-class applications. For more details, please connect with sales@xfilespro.com
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Exploring Innovations in Data Repository Solutions - Insights from the U.S. G...Globus
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SOCRadar Research Team: Latest Activities of IntelBrokerSOCRadar
The European Union Agency for Law Enforcement Cooperation (Europol) has suffered an alleged data breach after a notorious threat actor claimed to have exfiltrated data from its systems. Infamous data leaker IntelBroker posted on the even more infamous BreachForums hacking forum, saying that Europol suffered a data breach this month.
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How to Position Your Globus Data Portal for Success Ten Good PracticesGlobus
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Spring Boot, Spring Cloud, Spring Core, Spring JDBC, Spring Security,
Spring Transaction, Spring MVC,
Log4j, REST/SOAP WEB-SERVICES.
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Why React Native as a Strategic Advantage for Startup Innovation.pdfayushiqss
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Host gets a notification, where they opt to Approve the meeting
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Visitor Management System is a secure and user friendly database manager that records, filters, tracks the visitors to your organization.
"Secure Your Premises with VizMan (VMS) – Get It Now"
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2. What this presentation covers?
What is geographic information?
Importance of GIS
What are the existing types of GIS software available
to you.
Advantages and disadvantages of GIS
Applications of GIS
Assets mapping
4. GIS history
Roger Tomlinson drives the creation of the Canada
Geographic Information System (CGIS) in 1964
o First national GIS system
Land Use and Natural resource Inventory System
o LUNR, New York 1967
Minnesota Land Management System
o MLMIS, Minnesota 1969
Arc Info introduced in 1981
o First major commercial GIS venture
2/17/2017 7EETR: PT & IV 4
5. What is GIS?
GIS stands for Geographic Information System and it is a
computer-based mapping tool that allows users to
manipulate large sets of data as layers or themes.
These themes appear as graphics on a base layer which may
be a map or orthographic aerial photo.
Geographical Information Systems (GIS) are a special class
of information systems that keep track not only of events,
activities, and things, but also of where these events,
activities, and things happen or exist.
2/17/2017 7EETR: PT & IV 5
6. GIS Objectives
Identify principles and functional issues pertaining to
physical geography applications of GIS.
Examine and review specific application areas where GIS
is a useful tool.
Investigate techniques provided by GIS which have
particular relevance to physical geography applications
and problem solving.
Identify and address problem areas such as data sources,
modelling, error and uncertainty.
The broad types of GIS software that are available.
2/17/2017 7EETR: PT & IV 6
7. Why it matters?
Almost everything happens somewhere and in most cases,
knowing where some things happen is critically important.
Examples:
• Position of country boundaries
• Location of hospitals
• Routing delivery vehicles
• Management of forest stands
• Disaster affected areas
2/17/2017 7EETR: PT & IV 7
8. Features of GIS
• Multidimensional – at least two coordinates must be
specified to define a location.
• Voluminous – a geographic database can easily reach a
terabyte in size.
• Different Representations - and how this is done can
strongly influence the ease of analysis and the end results.
• Requires unique analysis methods.
• Analyses require data integration.
• Map displays require fast data retrieval.
2/17/2017 7EETR: PT & IV 8
9. Difference between GIS,GPS,RS
2/17/2017 7EETR: PT & IV 9
GPS RS GIS
a system of earth-
orbiting satellites
which can provide
precise (100 meter
to sub-cm.)
use of satellites or
aircraft to capture
information about
the earth’s surface
Software systems
with capability for
input, storage,
manipulation/analys
is and
output/display of
geographic (spatial)
information
10. Types of GIS
There are a number of Geographical Information Systems (GIS)
(or GIS software) available today. They range from high-
powered analytical software to visual web applications, and
each of those are used for a different purpose.
Although they share the common characteristics yet there
functions are different.GIS are broadly classified into 3 types:-
• Web-based GIS: ONS
• Geobrowser: Google Earth
• Desktop GIS: QGIS
2/17/2017 7EETR: PT & IV 10
11. 1) Desktop GIS
A GIS, or GIS software, allows you to interactively work with
spatial data. A desktop GIS is a mapping software that needs to
be installed onto and runs on a personal computer.
In the project I have made use of QGIS Essen 2.14 which is
developed by ESRI.
QGIS is what ESRI refer to as a suite of products which can be
tailored to our need. QGIS is used for a vast range of activities,
covering both commercial and educational uses.
2/17/2017 7EETR: PT & IV 11
12. 2) Geobrowser
A Geobrowser is better explained with reference to an internet
browser, i.e. Internet Explorer. In short, a geobrowser can be
understood as an Internet Explorer for geographic information.
Like the internet it allows the combination of many types of
geographic data from many different sources. The biggest
difference between the World Wide Web and the geographic
web however is that everything within the latter is spatially
referenced.
Google Earth is the most popular geobrowser available and
will be the one used for this course.
2/17/2017 7EETR: PT & IV 12
13. 3) Web-based GIS
Web-based GIS, or WebGIS, are online GIS applications which
in most cases are excellent data visualisation tools. Their
functionality is limited compared to software stored on your
computer, but they are user-friendly and particularly useful as
they not required data download.
There are many WebGIS available, but commonly used are: the
Office of National Statistics (ONS) and the London Profiler.
2/17/2017 7EETR: PT & IV 13
14. GIS Softwares
2/17/2017 7EETR: PT & IV 14
There are a number of softwares available for GIS purpose.
Few of them are:-
• Grass Gis
• Gvsig
• Ilwis
• Jump Gis
• Map window Gis
• Qgis
• Saga Gis
• ARCGIS
15. QUANTUM GIS(QGIS)
QGIS is a cross-platform free and open-
source desktop geographic information system (GIS)
application that provides data viewing, editing, and
analysis.
QGIS allows users to create maps with many layers using
different map projections. Maps can be assembled in
different formats and for different uses. QGIS allows maps
to be composed of Raster or Vector layers.
2/17/2017 7EETR: PT & IV 15
17. Types of Data
1) Raster Data:-
Raster data is made up of pixels (also referred to as grid
cells). They are usually regularly-spaced and square but
they don’t have to be. Raster often look pixilated because
each pixel is associated with a value or class.
Raster models are useful for storing data that varies
continuously, as in an aerial photograph, an elevation
surface or a satellite image. But it depends on the cell size
for spatial accuracy.
2/17/2017 7EETR: PT & IV 17
18. (cont.)
2) Vector Data:-
Vector graphics are comprised of vertices and paths.
The three basic symbol types for vector data are points,
lines and polygons (areas).In GIS terminology, real-world
features are called spatial entities.
The decision to choose vector points, lines or polygons is
governed by the cartographer and scale of the map.
Vector points are simply XY coordinates. When features
are too small to be represented as polygons, points are used
2/17/2017 7EETR: PT & IV 18
19. QGIS Plugins
QGIS has been designed with a plugin architecture. This
allows many new features/functions to be easily added to
the application. Many of the features in QGIS are actually
implemented as either core or external plugins.
• Core Plugins are maintained by the QGIS Development
Team and are automatically part of every QGIS
distribution. They are written in one of two languages: C++
or Python.
• External Plugins are currently all written in Python. They
are stored in external repositories and maintained by the
individual authors.
2/17/2017 7EETR: PT & IV
19
20. QGIS Shapefiles
The standard vector file format used in QGIS is the ESRI
Shapefile.
A shape file actually consists of several files. The following
three are required:
• .shp file containing the feature geometries.
• .dbf file containing the attributes in dBase format.
• .shx index file.
Shapefiles also can include a file with a .prj suffix, which
contains the projection information. While it is very useful
to have a projection file, it is not mandatory. A shapefile
dataset can contain additional files.
2/17/2017 7EETR: PT & IV 20
21. Google Earth
Google Earth displays satellite images of varying resolution
of the Earth's surface, allowing users to see things like cities
and houses looking perpendicularly down or at an oblique
angle .The degree of resolution available is based somewhat
on the points of interest and popularity, but most land is
covered in at least 15 meters of resolution.
Google Earth supports managing three-
dimensional Geospatial data.
It stores the data in .KML or .KMZ extension.
2/17/2017 7EETR: PT & IV 21
22. Difference between KML and
KMZ file
KML stands for “Keyhole Markup Language” while KMZ
stands for “Keyhole Markup Language Zipped.”
KML is used to save and store map locations in
general while KMZ is used in the same capacity
for more specific locations like placemarks.
KML can be read and recognized by many geobrowsers or
programs that run maps and images like Google Earth and
Google Maps. This sometimes does not hold true for KMZ.
2/17/2017 7EETR: PT & IV 22
26. Adding Electrical Assets
With the help of google earth we have marked the area or
the boundary in which we have to do asset mapping. Assets
can also be marked with the help of google earth but for
more accuracy the points and coordinates have been
marked with the help of an app named as MAPinr.
It is available for free on google play store for android(OS).
Its easy access to the data and user friendly interface makes
it popular among the other similar apps which I have used
so far.
2/17/2017 7EETR: PT & IV 26
27. MAPinr
The maps in MAPinr is available offline. It
provides facilities, such as you can mark your
waypoints of different types not only with
different symbols but also with different colors.
The kml file of your saved map can be easily
transferred to QGIS just by opening the
corresponding kml file in QGIS, the points
marked on the map with there coordinates and
descriptions can now be seen and now you can
mark your waypoints in QGIS.
2/17/2017 7EETR: PT & IV 27
30. Advantages of GIS
Exploring both geographical and thematic components
of data in a holistic way
Stresses geographical aspects of a research question
Allows handling and exploration of large volumes of
data
Allows integration of data from widely disparate
sources
Allows analysis of data to explicitly incorporate location
Allows a wide variety of forms of visualisation
2/17/2017 7EETR: PT & IV 30
31. Conclusion
On the conclusion note all we can say that the use of GIS
makes the way for the future mapping of our valuable assets
in an efficient way.
Users, vendors and most importantly, researchers, have
symbiotic roles to play in the advancement of geographic
information science.
2/17/2017 7EETR: PT & IV 31
