Prepared as part of the IT for Business Intelligence course of MBA @VGSOM, IIT Kharagpur. The tutorial describes how to represent vector data on a map using the open source software QGIS.
Prepared as part of the IT for Business Intelligence course of MBA @VGSOM, IIT Kharagpur. The tutorial describes how to create an interactive map using the open source software QGIS.
QGIS is a free and open-source cross-platform desktop geographic information system application that supports viewing, editing, and analysis of geospatial data.
Prepared as part of the IT for Business Intelligence course of MBA @VGSOM, IIT Kharagpur. The tutorial describes how to represent vector data on a map using the open source software QGIS.
Prepared as part of the IT for Business Intelligence course of MBA @VGSOM, IIT Kharagpur. The tutorial describes how to create an interactive map using the open source software QGIS.
QGIS is a free and open-source cross-platform desktop geographic information system application that supports viewing, editing, and analysis of geospatial data.
Digitizing in GIS is the process of converting geographic data either from a hardcopy or a scanned image into vector data by tracing the features. During the digitzing process, features from the traced map or image are captured as coordinates in either point, line, or polygon format.
GeoServer, an introduction for beginnersGeoSolutions
This presentation will provide an introduction to the GeoServer project and its abilities to publish data with a mix of well known OGC protocols and other pupolar protocol and data formats, including:
* Setting up vector and raster data from the GeoServer administration control
* Publishing data via WMS, WFS and WCS
* Styling layers using desktop tools, with a carousel of GeoServer mapping abilities
* Tile caching with WMTS
* Moving to data processing with WPS
* Brief introduction to security
Digitizing in GIS is the process of converting geographic data either from a hardcopy or a scanned image into vector data by tracing the features. During the digitzing process, features from the traced map or image are captured as coordinates in either point, line, or polygon format.
GeoServer, an introduction for beginnersGeoSolutions
This presentation will provide an introduction to the GeoServer project and its abilities to publish data with a mix of well known OGC protocols and other pupolar protocol and data formats, including:
* Setting up vector and raster data from the GeoServer administration control
* Publishing data via WMS, WFS and WCS
* Styling layers using desktop tools, with a carousel of GeoServer mapping abilities
* Tile caching with WMTS
* Moving to data processing with WPS
* Brief introduction to security
QGIS UK User Group - Developing with QGIS (Lutra)QGIS UK
From Pete Wells an overview of the modular structure of QGIS under the hood and the different ways of interacting with the functionality exposed by the API through Python. Includes a list of examples and plugins developed for QGIS with Python.
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.
OpenStreetmap: non solo mappe al LUG LegnanoCity Planner
Evento 3 Giugno a Legnano
Cosa hanno in comune Instagram, Flickr, Twitter, Wikipedia e OpenStreetMap?
Oltre alla community anche le informazioni geografiche e coordinate dei contenuti.
Analisi posizionamento punto ristorazione SalernoGemma Catolino
Il Sistema Geografico Territoriale che abbiamo realizzato, atto a supportare, nel processo decisionale concernente, la localizzazione del sito migliore per la realizzazione di un punto di ristorazione.
Why limit yourself to just one GIS program? It's good to have options. This workshop will introduce QGIS, a powerful free and open source GIS software, and teach basic skills in QGIS. In the first half of the session, we will work through the training materials available from QGIS.org and in the second half, we will divide into groups for learning new skills in more depth, such as web mapping, spatial databases, or plug-in development. A laptop computer is required for this session and we recommend you install QGIS 2.6 before hand.
If you are a Civil 3D user being asked to provide data to your GIS department, if you are being asked to use GIS data as background data for your designs, or if you think GIS is a four letter word; this class will answer this all too common question, “Why should I care about GIS?” You will learn to import GIS data not only as AutoCAD objects, but also directly as Civil 3D objects like Surfaces and Pipe Networks that leverage the existing database information. Once that data is in Civil 3D we will explore ways to leverage it with labeling tools and other display techniques. This popular class has won awards at Autodesk University, don’t miss your chance to learn how the GIS tools in Civil 3D can make you more productive by automating common everyday tasks.
The main focus of this study is to find appropriate and stable solutions for representing the statistical data into map with some special features. This research also includes the comparison between different solutions for specific features. In this research I have found three solutions using three different technologies namely Oracle MapViewer, QGIS and AnyMap which are different solutions with different specialties. Each solution has its own specialty so we can choose any solution for representing the statistical data into maps depending on our criteria’s.
Introduction to mago3D, an Open Source Based Digital Twin PlatformSANGHEE SHIN
This talk was given at the Busan Eco Delta City(Korea National Pilot Smart City) technical workshop held on 18th July. I talked about introduction and history of mago3D, some core technologies, real cases, and lessons learnt in this workshop.
GIS 5103 – Fundamentals of GISLecture 83D GIS.docxshericehewat
GIS 5103 – Fundamentals of GIS
Lecture 8
3D GIS
Dimensionality
A dimension is the minimum amount of coordinates needed to define the mathematical space of an object.
Lecture 8 – 3D GIS
2DA figure that has only length & height as its dimensions. 2D shapes lie on a flat surface; known as plane figures or plane shapes. While they have areas, 2D shapes have no volume.2D figures are plotted on two axes, the x- and y-axes.
Lecture 8 – 3D GIS
3DLength + Height + WidthX + Y + Z Volume + Surface AreaExamples include: 3D multi-patch building, roof, interior floors, and foundation would all contain different z-values for the same 2D coordinate. Aircraft's 3D position or a walking trail up a mountain, would only have a single z-value for each X,Y location.
Lecture 8 – 3D GIS
2.5DHighly used in GIS to represent Z data that is not continuous = 3DZ data does not need to be elevation. Pollution, # of cases, etc.
Lecture 8 – 3D GIS
3D file types .3dd.sxdWhen you import an ArcGlobe or ArcScene document:First the .3dd file opens by default in global mode Secondly the .sxd file opens in local mode. Any new blank scene view defaults to global mode.
Lecture 8 – 3D GIS
Data TypesVector FeaturesPoint / Line / Polygon Surface typesTIN (Triangular Irregular Networks)DEM’s (Digital Elevation Models)Raster SurfaceLAS Dataset
Lecture 8 – 3D GIS
3D StylesPointsGeometric ShapesModelsMarkersImportedLinesTextured SymbolsGeometric ShapesPolygonsTexture FillBasic Colors
Lecture 8 – 3D GIS
Lecture 8 – 3D GIS
Perspective ViewPerspective drawing is the most common drawing mode in 3D, where features in the foreground are shown larger than those off in the distance. This matches the way we see the world in our day-to-day lives, and the result is a realistic representation of 3D content. All scenes open in perspective viewing mode. You can switch between Perspective Perspective View and Parallel Isometric View viewing modes using the Drawing Mode drop-down menu in the Scene group on the View tab.
Lecture 8 – 3D GIS
Parallel / Isometric ViewParallel drawing renders the 3D view using a parallel projection, where features of the same physical size are rendered on-screen identically, regardless of their distance from the viewing camera. Parallel drawing is useful for architectural drawings, as well as for representing statistical data in a 3D view, such as extruded shapes symbolizing numeric values.
Lecture 8 – 3D GIS
3D Analyst ToolsData Conversion/PreparationTxt / Binary / Feature class / Raster / TINSurface CreationInterpolation / LASD CreationSurface AnalysisAspect / Slope / Contour / Feature Interpolation3D Operator & VisibilitySkyline / Inter-visibility / Sun Shadow Analysis
Lecture 8 – 3D GIS
There are five exploratory analysis tools:The Line of Sight tool creates sight lines to determine if one or more targets are visible from a given observer location.The View Dome tool determines the parts of a sphere that are visible from an observer locate ...
Fifth part of the Course "Java Open Source GIS Development - From the building blocks to extending an existing GIS application." held at the University of Potsdam in August 2011
Case Study about BIM on GIS platform development project with the standard modelTae wook kang
To realize BIM on GIS technology for productivity of AEC industry, we should have some questions like these.
Questions
• What is the benefit from the fusion
between BIM and GIS as the viewpoint of
the public sector
• What do we should do first?
• What is the barrier to realize it?
• How to develop it?
Research and try to
• find the useful use-cases
• define the technology and the organization
including people etc
• survey the issues and define the considerations
• collaborate and research it with the institutes and
the industries
- 2013.5
John Park, Offering Manager, for IBM Cloud Data Services covers the touchstones for tomorrow’s information systems: data and integration. Stovepipe applications are no longer acceptable, and siloed data sources must evolve and open up to the full enterprise. All this in an environment where more is expected faster, and at a lower cost. If your GIS doesn’t watch out, it will be replaced by less capable alternatives that “fit better” into mainstream IT. But dashDB, a cloud-native offspring of DB2, can provide a bridge that keeps both sides happy. This session introduce this popular cloud data warehousing solution and illustrate how it works in concert with ArcGIS. You will learn about the built-in geospatial functions in dashDB and how you can easily use them to build applications rapidly. You’ll see an application that uses weather data and mobile application data to calculate insurance risk, detect potential fraud, and prevent damage.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
1. Copyright (C) 2013 microbase.LLC All Rights Reserved.
Geographic
Information System
QGIS Introduction(1)
microbase.LLC
http://microgeodata.com/
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Agenda
1st
2nd
3rd
What’s QGIS?
Basic usage
Basic data management
Spatial data handling
Spatial Analysis
Geocording
Create Vector data
About coordi nate system
Create KML data
Utilize OSM data
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Contents Today
1st session
1 What’s QGIS?
2 Basic usage
3 Basic data management
4 Map design
Homework
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What’s Quantum GIS (QGIS)?
• One of open source GIS software named FOSS4G
(Free and Open Source Software for Geospatial)
• a user friendly GUI
• Multi-platform(Win, Mac OS X, Linux)
• Multi-language
• Rich functions for a function enhancement
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What QGIS can do?
Create and edit
GIS data
Display GIS
data
(overlay, thematic
map...)
Select / Join data GIS data analysis
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2.1 Launch QGIS
• Double click the QGIS shortcut
icon on desktop
• The window will open.
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QGIS window will open like below.
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toolbar
menu
map viewLayer
map info / settings
topmenu
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Install Plugin
• Choose “Fetch Python Plugins...” from “Plugins” on the top menu and
search “Table Manager” from Filter form in “Plugins” tab.
• “Table Manager” is a database management tool.
• Choose and install “Table Manager”.
• When installing plugin, internet environment is necessary.
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• Choose “Manage Plugins...” from “Plugins” on the top menu and
click the “Add DelimitedText Layer”.
• “Add DelimitedText Layer” function is used for importing CSV format data.
• Checked function will be visible on the main menu and able to be used.
“Add Delimited Text
Layer” will be visible.
Plugin Management
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2.2 Add data
GIS data can be devided into 2 types..
• Raster type ex) JPEG, PNG,TIFF
• Vector type ex) Shape file(.shp)
For instance, imagine a river and bridge,
Raster type
aggregate of colored
dots
Vector type
line data connecting
starting points and
end points
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Exercise data
lecture1_data
tokyo23
homework1
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About Shape file
• Vector type data mostly used in the world.
• Available in most GIS softwares.
• “Shape file” format is composed of more than 3 files as follows.
*.shp (geometry type and geographical coordinates)
*.dbf (attributes of features such as name and figure)
*.shx (relationship between shp and dbf)
*.prj (the coordinate system and projection info)
Shape file
same file name
These files must be
put in same folder.
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NAME AREA PERIMETER
0
1
2
3
4
5
AAA 18352 644
BBB 22496 756
CCC 22050 602
DDD 7548 352
EEE NA NA
FFF NA NA
*.shp *.dbf*.shx
CCC
AAA
DDD
BBB
Point Data ex) amedas data, shop data
Line Data ex) road data, railway data, river data
Polygon Data ex) city shape, building data
<Feature type>
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1) Click “Add vector layer”
2) Browse file
3) Open
Add “ku.shp” in “tokyo23” folder.
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※ Caution ※
• Japanese GIS data by Government such as National Land
Numerical Information and census data tend to be recorded in
Shift-JIS. If you use Mac OS or Unix, Check that the encoding is
Shift-JIS before adding the data.
• Shift-JIS can be converted to UTF-8 later.
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Tokyo special districts are displayed.
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Display a feature
1) Click “Identify Feature”
2) Click a feature
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Shibuya info can be shown in a new window.
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1) Click “Save Project”
(Ctrl + S or Command + S)
2)You can save it any name in any folder.
3) save a project as “.qgs” type
2.3 Save a project
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Exercise1
Add following data in the folder “tokyo23”.
subway.shp (Line data: a subway in Tokyo Special district)
station.shp (Point data: a station in Tokyo Special district)
convenience.shp (Point data: a convenience store in Tokyo
Special district)
elevation.shp (Polygon data: an terrain data in Tokyo special
district)
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Hint
You can select plural files while pushing
Ctrl key ( or Command key).
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The order of layer on TOC can be
altered by drag and drop.
Front
Back
2.4 Change an order of each layer
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A layer can be hidden without checking a check
box of layer.
Only subway and station layer
can be seen on map view.
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Delete a layer
Delete other than “ku” layer.
#This function doesn’t delete a file
itself in the file directories.
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Basic data management
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What’s an “attribute”?
NAME AREA PERIMETER
0
1
2
3
4
5
A棟 18352 644
B棟 22496 756
中庭 22050 602
生協購買 7548 352
ポスト NA NA
道路 NA NA
中庭
A棟
生協購買
B棟
・ポスト
attribute table
“Attribute” means an property of each feature such as a name and an
area. In case a shape file is used, the attribute is saved into a dbf file and
can be edited.
The feature “0” has a name of “A building” and an area of
18,352 square meters, perimeter of 644 meters.
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Open Attribute table
See an attribute table of “ku” layer.
• Add “ku.shp” on layer and open its attribute table.
field
Each line
links to
vecoter on
map.
Click “ku” layer on the right
mouse and choose “Open
Attribute Table”.
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If you choose a line from attributes, the
linked map feature also be chosen.
If you choose a map feature on map view,
the linked line also be chosen in the similar
way.
click a line number which
you’d like to choose.
Choose “Select Single
Feature” and click a map
feature on map view.
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Select layer by attribute
Select a city which has more than 20 km2 in area from attribute table.
About fields
• KU : city id
• NAME : city name
• PERIMETER [ m]
• AREA [m2]
1) Click “Advanced Search”.
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Input a condition expression on “SQL where clause”.
If you click, item will be
added to “SQL where
clause”.
“Test” show you whether the condition expression is
correct or not, and the number of matched features
Input “AREA >= 20,000,000”
( m2 -> km2 )
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12 cities are selected.
Deselect
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Select features under plural conditions
AND and OR enable to select features under plural conditions.
case1: ku which has more than 10 km2 and less than 20km2 in area
AREA >= 10000000 AND AREA < 20000000
AREA < 10000000 OR AREA >= 20000000
Also, NOT is useful when you’d like to select features under
opposite conditions.
case3: ku which doesn’t have not less than 20km2
NOT AREA < 20000000
case2: ku which has less than 10 km2 or more than 20 km2
36. Copyright (C) 2013 microbase.LLC All Rights Reserved.
Exercise 2
1) Select city features which has more than 50km in “PERIMETER” and
doesn’t have less than 50km2 in “AREA”
2) Save the selected features as “large_wards.shp” in “tokyo23” folder.
3) Open “large_wards.shp” in QGIS
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Answer
PERIMETER >= 50000 AND NOT AREA < 50000000
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Join table
“Join table” is to combine different table based on a key field in
common.
This function is very useful when you combine GIS data with others or
external data such as csv and dbf data.
NAME AREA
0
1
2
Hokkaido 83456.38
Aomori 8918.45
Iwate 15278.85
PREF POP
0
1
2
Hokkaido 5506419
Aomori 1373339
Iwate 1330147
NAME AREA PREF POP
0
1
2
Hokkaido 83456.38 Hokkaido 5506419
Aomori 8918.45 Aomori 1373339
Iwate 15278.85 Iwate 1330147
name, area name,population
add pop field into the target
table based on the
prefecture name.
39. Copyright (C) 2013 microbase.LLC All Rights Reserved.
The column “pop” has population data inTokyo in 2010.
Load “ku_pop.csv” in “tokyo23” into QGIS.
“Layer” > “add vector” > import csv
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CSV data has been added.
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Join population data inTokyo special districts into “ku” layer.
Choose a “join” tab above menu of the layer property “ku” layer
csv layer
Use city name as a key field
shp csv
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You can join / unjoin other data more.
“ku_pop” layer is joined to “ku” layer.
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“ku_pop” attributes has been joined.
Attributes of “ku” Attributes of “ku_pop”
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Decide where one
wants to save the files.
Save the joined layer as “ku_pop.shp” in “tokyo23”.
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Open “ku_pop.shp” and check that the attribute table is joined one or not.
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Calculate field
“Calculate field” enable to handle field values at once.
Calculate a population density in each area using “pop” and “AREA” fields
in the attribute of “ku”.
Population density = Population / Area [pop / km2]
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Toggle edit mode
Toggle edit mode before
calculate field.
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Click “calculate field”.
Calculate field
“pop” field is loaded
as string. the field in
CSV are all regarded
as string.
Caution:
“calculate field can’t
be conducted
when string and
figure data coexist
together.
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to int ( ) = ( ) 内のフィールド値を整数に変換
Fill as above
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Exercise1
Add following data in the folder “tokyo23”.
subway.shp (Line data: a subway in Tokyo Special district)
station.shp (Point data: a station in Tokyo Special district)
convenience.shp (Point data: a convenience store in Tokyo
Special district)
elevation.shp (Polygon data: an terrain data in Tokyo special
district)
Again
53. Copyright (C) 2013 microbase.LLC All Rights Reserved.
Change point styles
Click “Property” on the right mouse
button station(or double click the layer).
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Open the window “layer proper ty” and
choose “style” tab.
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“Symbol proper ties” window will open.
1) Change symbol layer type to “SVG marker”
2) Choose a mark of “train” from the image list.
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The station symbol has changed.
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Uncheck the check box other than
“elevation” layer and open its
properties(or double click the layer).
Change polygon styles
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Change a color of “elevation layer”
according to elevation value.
Low High
Generally, higher area colors
warm color(ex.red,yellow).
Lower area colors cold
color(ex. blue,green).
59. Copyright (C) 2013 microbase.LLC All Rights Reserved.
1) Choose “Graduated”. 2) Choose a column “ELEV” which has elevation value.
3) Choose any color ramp.An
original color ramp can be made.
4) Choose a number
of classed and a
classification mode.
5) Finally, click “Classify”.Then the classification
result will be displayed above.
If you’d like to arrange your way, just click
“Symbol color”,“Range” and “Label”.
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Change par tial symbol styles
show different markers depending on attributes.
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1) Choose “Graduated”.
2) Choose and double click a rule row
which you’d like to change.Then the rule
property will open.
(Default setting has no rule)
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4) Input “CNAME LIKE ‘Circle%’ on
“Expression” form.
(or “CNAME = “circleK”)
‘LIKE’ : partial matching
‘=‘ : perfect matching
3)Input any name in “Label” form.
Click “...” next to “Filter” form.
5) Marker type can be chosen
as mentioned before.
A filter rule can be input from
“Expression string builder”.
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Existing rule has been edited.
If you’d like to add an another rule or delete
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Only “CircleK” has been displayed.
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Display a label
1) Choose “Label” tab from tab menu in Properties “ku”
2) check the checkbox
of “Display labels”.
3) Choose “NAME” in “Field
containing label” form.
67. Copyright (C) 2013 microbase.LLC All Rights Reserved.
The name of “ku” has been displayed as a
label on the polygon data.
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Exercise 2
1) Delete the label “ku”.
2) Add pop.shp(population on street scale).
3) Classify poplation in 1995(“P1995”) into 4 categories as follows.
class 1 : 0 ∼ 1000 (blue)
class 2 : 1001 ∼ 2500 (green)
class 3 : 2501 ∼ 5000 (yellow)
class 4 : 5001 ∼ (red)
71. Copyright (C) 2013 microbase.LLC All Rights Reserved.
Map Expor t
Export your map an imagery file for printing. QGIS has an additional
function such as adding a direction symbol and a scale bar for printing.
Click “New print composer” icon from toolbars.
Add a map, symbols and others to
Initial screen from the menu.
72. Copyright (C) 2013 microbase.LLC All Rights Reserved.
1) Click “Add new map” icon
Add a map into composer screen
2) Drag at any place on the composer
screen while choosing “Add new map” icon
map size and other settings
can be adjusted freely.
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Those elements can be
modified from “Item
Properties” at the right side
Add icon and
pictures.
Add Label
Add legend
Export as an
imagery, PDF, SVG.
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Contents Today
1st session
1 What’s QGIS?
2 Basic usage
3 Basic data management
4 Map Design
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DATA
homework1
pref_pop.csv
Japan_pref.shp
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(1) Add Japan_pref.shp and pref_pop.csv on layer.
(2) Join Japan_pref layer with pref_pop and save it as
Japan_pref_new.shp .
(3) Calculate population density in all prefecture using both
pop2010 and pop2035 field.
(4) Classify the poplation density in 2010 and 2035 into 5
categories.