.shp, .lyr, .tif for free
.shp can be viewed with most free GIS programs, including qgis, www.qgis.org, .lyr is proprietary and can only be viewed (as far as i know) with ESRI software, their free viewer (ArcExplorer) cannot view .lyr. .lyr's main purpose is to hold metadata, such as color and labels, so there is no info in them that is different than the info in the shapefiles.
download here
An eBook to get you started learning ArcGIS. The dataset for this ebook is also included here. Though the ebook version is for the ArcGIS Desktop 10.X release, you can still use it to work in 9.3.1.
here
Taille: 18.54 MiB (19444969 Bytes)
The steps covered here are intended to help you load Shapefile data into ArcGIS and perform simple visualization of that data. If you require any further guidance on using ArcGIS then please contact your Site Representative who will be able to point you to resources within your own institution. ArcGIS has information that can be accessed from the Help menu and there are learning resources available from the ESRI Virtual Campus
For a short video showing how to view Geology Data in ArcGIS, click on the image below:
1. Accessing ArcGIS
ArcGIS, produced by ESRI, is available to UK academic institutions which are licensed under the CHEST/ESRI Agreement. Further details can be found at EDUSERV CHEST's web pages:http://www.eduserv.org.uk/lns/agreements/esri. Not all institutions hold licenses under this agreement, in which case ArcGIS may not be available.
Instructions for starting ArcGIS will vary depending on how it is installed at your institution so you will need to find out how to run it locally. In Windows, a program can usually be run by either double clicking on an icon on the desktop, or by locating the program under the Windows Start menu. The ArcGIS program group may be at the following location: Start -> Programs -> ArcGIS
The ArcGIS program suite consists of a number of sub-programs; this document covers ArcMap and ArcCatalog only.
2. Preview and Prepare Data in ArcCatalog
When you download the shapefile data from Geology Digimap you will see that there are four component files to each layer and up to eleven layers per tile. These files need to be managed carefully as if the components are separated or renamed different things then the shapefile will not work. ArcCatalog provides an environment in which you can manage these files more easily, treating he component files as a single entity.
We strongly recommend that if you use ArcCatalog to move or rename shapefiles. You can also use ArcCatalog to establish a spatial reference for the data. This is stored in a separate .prj file not provided in the download. This is not necessary for the shapefile to display properly though it will help if you want to use the geology data with other different kinds of data.
ArcCatalog can be run from the ArcGIS programs group, usually: Start -> Programs -> ArcGIS -> ArcCatalog
After the ArcCatalog splash screen, the main ArcCatalog Interface will appear. Essentially you navigate to the location of your GIS data using the left panel and use the tabbed panels at right to find or change information about the dataset.
The first step in using ArcCatalog is to establish a link to your data held as Shapefiles. To do this click on the connect to folder icon highlighted in the image above. A dialogue showing the windows directory tree will appear which you should use to navigate to the folder containing your data, select the folder and then click OK, adding an entry to the Catalog Tree. To see the full contents of this now connected folder, simply click the + node to expand the tree. Doing so should give you something like this:
You can at this point assign a spatial reference to the data. To do this, right click on a shapefile and select Properties, which will bring up the Shapefile Properties form. Go to the XY Coordinate System tab and click on the Select... button to select a predefined coordinate system.
Navigate through the folders:
Projected Coordinate Systems >National Grids > Europe >British National Grid.prj
Select this file and click Add. Finally click Apply and then OK to return to ArcCatalog; this step should be repeated for each of your Shapefile datasets.
Move on to the next section to see how to open up the shapefiles in ArcMap, this part of ArcGIS can be accessed directly from ArcCatalog by clicking on the ArcMap Icon:
3. Viewing data in ArcMap
ArcMap sits at the heart of ArcGIS and is used for all map-based tasks including cartography, spatial analysis and editing.
After the splash screen, the main ArcMap interface will appear.
The ArcMap interface consists of a table of contents on the left and a large panel to the right known as the data frame. Above these are a selection of drop-down menus and buttons which allow access to the various functions of ArcGIS. To add data to the data frame, click on the Add Data button located on the standard toolbar which will allow you to navigate to your data.
If you didn't use ArcCatalog before you opened up ArcMap then you will need to connect to your data folder to make finding your data more easily. Click on the connect to folder icon and then navigate to the folder that contains your data. Highlight your folder and then click OK, you will now be able to navigate directly to this folder every time you wan to add data.
Add in the shapefiles you have downloaded, you can use Ctrl or Shift keys to select multiple files at once:
To turn a layer on or off, simply click the tick box beside each layer. The properties of an ArcMap layer are accessed through the Layer Properties form. To access this form, double click on a layer item in the table of contents, or select a layer, and then right-click, and from the context menu choose, Properties.
4. Applying the BGS legend Colours
Although there are many properties associated with a layer we are perhaps most interested in setting how our data is drawn in ArcMap. To do this, click on the Symbology tab in the Layer Properties.
The symbology options available will vary depending on whether the layer is a point, line or polygon. You can manually edit the symbology but there are AVL files provided in your download that let you apply the official BGS Colour Scheme.
On the Layer Properties form, under the Symbology tab, click the Import button to bring up the Import Symbology form.
Set the radio button to Import symbology definition from an ArcView 3 legend file (*.avl): and then click the open file button to navigate to the AVL file; there is one for each shapefile in the data downloaded from Geology Digimap. Ensure that the lower left radio button panel is set to Complete symbology definition and then click OK.
At the Import Symbology Matching Dialog ensure that the Value Field drop-down for LEX_ROCK is also set to LEX_ROCK, and then click OK, returning you to the main Layer Properties form with the symbology applied. Note that for linear feature layers the Value Field should be Features not LEX_ROCK.
Finally click, Apply to return to ArcMap; repeat this process for the other layers to finish your geology map.
A full explanation of ArcMap's visualisation, Analysis and Editing functionality is beyond the scope of this document. However more detailed tutorials and information may be provided by your own institution. Every installation of ArcGIS comes with a number of ESRI digital books in PDF format which provide comprehensive coverage of ArcCatalog and ArcMap. To gain access to these you should contact the person who setup ArcGIS at your institution. Another alternative is the ESRI virtual campus which provides a number of tutorials on ArcGIS.
USGSprovidesusers with aseries ofLIDARpointcloudin the form oftiles.
The Viewer User Instructions give an overview of the map interface page.
The overview is a comprehensive list of tools and functionality of all Web Mapping
map interfaces. The tools and funtionality are not available on all map interface
pages. Depending on the purpose of the page, different tools are available, as well
as, initial map region, reference layers, and download capability. In addtion to the
Viewer User Instructions, a tutorial (.pdf) has been written for the Seamless Data
Distribution System website that can be used a reference tool.
Viewer User Instructions are organized in four sections:
A. Move
B. Zoom
C. Query
D. Tools
E. Download
F. Docs or Misc
A. Move
The move category provides tools to aid in navigating within the map region
The Pan arrows (the grey and pink line with arrows) will move the map in
one direction by about 1/2 of the current screen extent. Imagine a
window that is shifted/moved in the given direction to show a new view.
B. Zoom
The zoom category provides tools to aid in navigating within the map region.
The
Zoom In tool, default, is used to enlarge a portion of the map.
Select this tool, then click and draw a box on the map around the area
what you wish to see in more detail. Clicking without drawing a box,
will zoom in with the center point where you clicked by a factor of 2.
The Full Extent Zoom tool will zoom out to the starting/initial extent of the map.
The Zoom Out Tool is used to zoom out a portion of the map. The box drawn with this tool is used to
calculate a zoom out factor. A smaller box will zoom out more than a large box. Clicking without
drawing a box, will zoom out with the center point where you clicked by a factor of 2.
The Zoom to Region or Area tool allows you to zoom to a region, state, or locale. Click on the
tool, below the map region are drop down menus to choose a Region, State, or Locale. Once an area
is choosen, the map will automatically zoom to the location.
The Zoom to Previous Extent tool will change the extent to the last extent (like
an undo feature just for the zoom scale).
The Zoom to a Point tool allows you to enter a coordinate. Click on the tool and
a window will pop up. Enter coordinates, Longitude and Latitude in decimal degrees, then click
OK. The map will zoom in and center around the coordinates entered at a scale of
approximately 1:3,700,000.
C. Query
The Query category provides tool to query information from the map.
The Identify button provides information about a certain point. Click the button,
then click on the map. A window will appear with information about the point and the layers.
The Find (binoculars) button allows you to locate a certain point. Click the button,
then a window will appear to enter a populated place. Click OK. A list of names is diplayed
below the map region. Scroll to see the choices. Click on the Goto to have the map
zoom to that specific area.
The Elevation Point Query button allows you to click a location on the map and an elevation
is returned. Click the button, then click anywhere on the map. Below the map region
an elevation, in feet, latitude, and longitude are displayed for the specific point. The
data source uses the best available elevation data.
The US National Grid Conversion button allows you to click a location on the map
and the US National Grid coordinate, Latitude, and Longitude is returned. Click the button,
then click anywhere on the map. Below the map region the USNG coordinate, latitude, and longitude
are displayed for the specific point.
The Elevation Profile button allows you to click points on the map and receive a graph with
the elevation profile between the points. Click on the button, then click a starting point
on the map, then click an ending point. Below the map region, options will appear for generating
the profile graph. To generate the graph, click "Generate Profile for 2 Points" Once the
information is processed a graph will appear in a new window illustrating a profile between the two
selected points.
D. Tools
The Tools category provides the user with different capabilities to apply to the map.
Some Tools listed are not available on all map interfaces.
Pan Tool (hand icon) is used to drag the map in any direction and recenter the view. Simply
click on the Pan Tool, then drag the map to a new location.
Measure Tool allows you to measure distances on the map. Click the tool, then
click a point on the map. Then move the mouse and distances are displayed on the top of the map.
Click another point and this will draw an line between the two points.
Eraser Tool allows you to clear any tool that was applied to the map. Click on
the button and the map is cleared.
Print Icon allows you to create a .pdf file of the area displayed on the
screen. Manipulate the map to display the area and layers to be printed. Click the
printer icon. A window will appear with options to add a title, adjust the page layout, and
the image size. Click "Get Image" to generate a .pdf file. A processing page window will appear.
Once completed a .pdf file is created. This file can be saved or printed.
Metadata Tool allows you display metadata for a specific layer and location. Click on button, a
drop down list will be displayed below the map region. Choose a product, then click
on the desired layer on the map. FGDC metadata will be displayed.
Transparency Tool allows you to adjust a layer to be transparent. Click the button,
choose a layer and adjust the transparency. Click Apply Transparency button.
E. Download
The download category provides tools to download data.
The Define Tiled Selection button allows you to draw a box on the map over the desired area
to download. Click on the button, then using the mouse click and drag a box over the
area of interest. Once the mouse is released the download pages will start processing to find pre-existing tiled datasets.
F. Docs or Misc
The Docs or Misc category provides links to documents, like metadata, or
tools, depending on the map interface. Some map interfaces contain a Misc category and all tools
mentioned above, except move and zoom, are included in the category.
OGC Metadata button lists all of the layers reference layers available. Click on the button and
a list will appear.
The Legend button allows the user to display the legends for the map layers. Click the
button, then in the Display list the legends will appear. Clear the legend button again and
the legends will toggle off.
Refresh button allows the user to refresh the map interface.
Viewer User Instructions button displays the help for the map interface page.
The Scale Information category provides a quick mechanism to display the map in or out.
Depending on the scale, more layers become available. The scale is displayed for quick
reference.
B. Layers
The Layers category provides the list of reference layers and with some map interfaces the download layers list.
The Display tab lists the major categories of layers that can be
overlayed on the map. Click the twist
tie to reveal the reference layers available within the categories. The
map will automatically refresh. As an area is zoomed in more layers
will become available to add to the map. Some map interfaces do not
have a tab, but the list of categories. Then within the categories the
reference layers available.
Data Download allows you to download data files for all the British
Geological Survey map data products that are available through Geology
Digimap for use within GIS software packages.
Data Download works through a series of pages that guide you through
the downloading process. These help pages describe the stages of that
process in the order that you will come across them.
To see a short video of how to use Geology Download click on the image
below:
A quick guide on how to download tiles of BGS data from the Geology Download part of Geology Digimap.
Geology Digimap is a service providing BGS maps and data to subscribing UK Higher and Further Education institutions.
Logging in
To be able to use Geology Download, you must log in with Personal Digimap
Registration, not Class or Casual Reference Registration.
Geology Download can be accessed from the Geology Digimap homepage,
select Geology Download. If the link is not available,
the most likely cause is that you have logged into Geology Digimap using
a Class or Casual Reference Registration. Please contact our help desk
if you cannot get access to this service: edina@ed.ac.uk
Process
To download data you must work through the following stages:
Identify which scale product you are interested in.
Select which of the tiles you wish to download.
Select which layers you would like to download for the tiles you
have selected.
Set the archiving and compression options for the download process.
Download the data to your computer.
Interface
At the top of every page in Data Download is a header bar which contains
links to Help, Logout, and a bread crumb trail (on the left hand side)
which will link to the Geology Digimap homepage. Below the links there
is a Start Again button, which you can click this at
any point to abandon your current search.
, construites sur le même modèle que les fiches d'aide à l'utilisation de ArcView ou celles de MapInfo (que vous retrouverez dans leur rubrique respective).
L'avantage d'un même modèle de construction de ces fiches, est de pouvoir passer plus facilement de la manipulation d'un de ces logiciels à un autre.
Caractéristiques des fiches :
Les fiches d'aide à l'utilisation de GvSIG rassemblent les fonctions du logiciel les les plus utilisées.
Leur utilisation pour la création d'exercices assure un gain de temps.
Pour l'apprenant, l'utilisation de ces fiches permet une réflexion centrée sur le fonctionnement du logiciel.
TD 1 : Prise en main d'un logiciel SIG (ArcGis, MapInfo ou GvSig) TD 2 : Découverte des projections (ArcGis, MapInfo ou GvSig) TD 3 : Intersection et échelle de travail (ArcGis, MapInfo ou GvSig) Thématique : Environnement/ Urbanisme TD 4 : Zone tampon et découpage (ArcGis, MapInfo ou GvSig) Thématique : Protection sanitaire TD 5 : Découpage et représentation des données (ArcGis, MapInfo ou GvSig) Thématique : Occupation du territoire et urbanisation TD 6 : Jointure et discrétisation (ArcGis, MapInfo ou GvSig) Thématique : Géographie TD 7 : Fusion et cartographie (ArcGis, MapInfo ou GvSig) Thématique : Occupation du territoire et agriculture
Retrouvez un exercice entier de l'Académie de Nantes, sous le titre "géoréférencer des documents avec le système d'information géographique gvSIG" qui reprend tous ces points:
Télécharger et installer gvSIG
Changer la langue de travail et le système de projection
Créer un nouveau projet, charger un projet existant, sauvegarder le projet courant
Insérer une couche d'information vectorielle pour commencer le travail
Géoréférencer une carte numérisée avec des coordonnées connues
Exporter l'image géoréférencée
Géoréférencer une photo numérisée avec des points de repère
Once again our
talented procurement department has done its job. This time they
bring us a gem of data in the form of 1:250K geological vector data
over the entire country of Iraq. It is truly an astonishing feat
to have this data on hand and the benefits it can bring to our
clients are endless.
1:250K Geological Vector Index Map
- Iraq
Scale:
1:250,000
Coverage: Complete,
35 sheet series
Publish years:
1995-2008
Publisher: State
Establishment of Geological Survey and Mining (GEOSURV), Baghdad,
Iraq.
Language: English
language
Also available:
Digital explanatory notes for each map sheet (Word or .pdf format)
also in English.
Formats
available:
Paper
Raster
Georeferenced raster
GIS/Vector
1:250K
Geological Vector Data - Iraq
The maps that make
up this dataset are extremely rare and difficult to obtain. We
have gotten the hard part out of the way and now they are easily
available to you.
The ArcGIS geology data model has been built specifically for the
mining/geosciences industry. The basemap data model has been used
throughout the natural resources community:
THE UNITED STATES GEOLOGICAL SURVEY: (http://www.usgs.gov/). Home of the National Mapping Division, host for the Federal Geographic Data Committee (http://fgdc.er.usgs.gov/), the National Spatial Data Infrastructure, and headquarters for the data archive at the EROS Data Center (http://edcftp.cr.usgs.gov/). THE UNITED STATES CENSUS BUREAU, Department of Commerce: Home of the TIGER data for computer mapping. (http://www.census.gov/) TERRASERVER: An amalgam of government and private-sector companies, this site is part of the Microsoft network, in collaboration with the USGS, Compaq, Storage Works and Spin-2. The site allows users to download aerial photos and satellite images, searchable by name or location in a variety of scales. Claiming to be the largest online database, it contains over 3 TeraBytes of digital information. Very cool! (http://www.terraserver.microsoft.com/) NATIONAL GEOPHYSICAL DATA CENTER: Location for all sorts of geologial and earth resources information and data. (http://www.ngdc.noaa.gov/ngdc.html) NATIONAL OCEAN SERVICE: Center of information for mapping and charting of ports and oceans etc. (http://www.nos.noaa.gov/) NATIONAL IMAGERY AND MAPPING AGENCY. The Agency's site provides ready access to the world's imagery, imagery intelligence and geospatial information. (http://164.214.2.59/) DEFENSE MAPPING AGENCY TERRAIN MAPPING PROJECT OFFICE: Data collections and information on terrain mapping. (http://164.214.2.53:8001/) NASA: Source of much existing data, and includes details of planned future systems. Many links to follow, including a master data base to facilitate searching. (http://www.nasa.gov/)
In
general terms, a model is a representation
of reality. A model represents
onlythose factors that are importantto your workflow andcreates asimplified,
manageable view of the real world.
ModelBuilderis
an interface used to conduct
geographic processing or geoprocessing functions in ArcGIS.
It is part of ArcGIS’s core
technology. Visually, it looksa lot like a flow chart. The power of ModelBuilder is that
it allows users to automate geoprocessing functions on their data easily withoutwriting
any code. The visual natureof the
interface makes it very easy to design
and follow workflows andmakes it a great tool for teaching students.
What
is geoprocessing?
Geoprocessing
is based on a framework of datatransformation. A typical geoprocessing
tool performs an operation onan ArcGIS dataset (such
asa shapefile,feature class, raster, or
table) and produces a new dataset asthe result
of the tool.
A geoprocessing tutorial can be found under theTutorials
in ArcView 8.x/9.x on the
ESRI Canada website
– http://www.esricanada.com/english/3552.asp, if you need a review.
Whybuildmodels?
Building
a model helps youmanage andautomate
your geoprocessing
work flow. Managing processes
and their supporting data can bedifficult
without the aid ofa
model.
Advantagesof ModelBuilder
• Visually representing
workflow (excellent
for students)
• Automating workflows
• Rerunning geoprocesses
unlimited times with differentdata and parameters
• Sharing models with other users
• Exporting models as
graphics for reports
It is easiest to think about ModelBuilderlike amathematical equation. There isan input or multiple inputs of data, an operation is performed
onthe
input datathat alters it in a certain way, and the data is returned asa
new output.
In this Tutorial,youwill learn:
• What is ModelBuilder
• What you cando with ModelBuilder
• How you can create your own model using geoprocessing tools
• How to export a model asa
graphic or as a script to sharewith others
highlighted in the image above. A dialogue showing the windows directory tree will appear which you should use to navigate to the folder containing your data, select the folder and then click OK, adding an entry to the 
button located on the standard toolbar which will allow you to navigate to your data.
