World Digital Library !

The World Digital Library (WDL) makes available on the Internet, free of charge and in multilingual format, significant primary materials from countries and cultures around the world from 8000 BC to 2009 AD and DOWNLOAD them in TIF and other known formats !

Type of Data/Materials Available :

• Maps
• Prints, Photographs
• Books
• Manuscripts
• Motion Pictures
• Sound Recordings

The principal objectives of the WDL are to:

• Promote international and intercultural understanding;
• Expand the volume and variety of cultural content on the Internet;
• Provide resources for educators, scholars, and general audiences;
• Build capacity in partner institutions to narrow the digital divide within and between countries.

Easy Drag & Navigable tool to locate the period, identify/select data and download

Topics

History & geography, Earth sciences & geology, Geography & travel, Geology, hydrology & meteorology, Landscape architecture, Historical, geographic & persons treatment, History of Europe, North America, Asia, Middle East & North Africa, Latin America & Caribbean, Africa, Oceania & Pacific, Atlases, maps, charts & plans, Social sciences, Arts & recreation, Religion, Technology, Social groups, Science, Other religions, Social problems & social services, Customs, etiquette & folklore, Agriculture, Architecture, Language, Christianity & Christian theology, Political science, Public administration & military science, Other languages, Plants (Botany), Medicine & health, Landscaping & area planning, Painting, Photography & computer art, Sports, games & entertainment, History of Europe, History of Africa, Creeds & catechisms, Religions of Indic origin, Islam, Babism & Bahai Faith, International relations, General considerations of public administration, Social welfare problems & services, Other social problems & services and many more !

The WDL makes it possible to discover, study, and enjoy cultural treasures from around the world on one site, in a variety of ways. These cultural treasures include, but are not limited to, manuscripts, maps, rare books, musical scores, recordings, films, prints, photographs, and architectural drawings.

Items on the WDL may easily be browsed by place, time, topic, type of item, and contributing institution, or can be located by an open-ended search, in several languages. Special features include interactive geographic clusters, a timeline, advanced image-viewing and interpretive capabilities. Item-level descriptions and interviews with curators about featured items provide additional information.

Navigation tools and content descriptions are provided in Arabic, Chinese, English, French, Portuguese, Russian, and Spanish. Many more languages are represented in the actual books, manuscripts, maps, photographs, and other primary materials, which are provided in their original languages.

The WDL was developed by a team at the U.S. Library of Congress, with contributions by partner institutions in many countries; the support of the United Nations Education, Scientific, and Cultural Organization (UNESCO); and the financial support of a number of companies and private foundations.

  Click here to ACCESS The World Digital Library !

DEM Surface Tools for ArcGIS

Description:  This extension provides you with tools to generate a variety of surface characteristics of a landscape, using both projected and unprojected (i.e. latitude / longitude) digital elevation model (DEM) rasters. These tools include:

1. Surface Area and Ratio of a landscape
2. Slope, with 3 slope algorithm options
3. Aspect, with 3 aspect algorithm options, and an additional tool to apply a traditional directional Aspect symbology to an existing Aspect raster.
4. Hillshade, with optional hypsometric tinting
5. Multi-directional Oblique-Weighted Hillshade, with optional hypsometric tinting
6. Seven types of Landscape Curvature

ArcGIS has many useful tools for calculating slope, aspect, hillshade and curvature from DEM rasters. This extension offers some advantages over these existing tools in that:

• These tools correctly handle Latitude / Longitude Data: The existing ArcGIS tools typically do not work well with data in a geographic coordinate system (i.e. Latitude / Longitude coordinates). They expect the vertical units of a digital elevation model to be the same as the horizontal units, and at best they only allow you to enter in an adjustment factor (generally called a "Z-factor") to adjust your Z-units to your X/Y-units. This Z-factor adjustment method is cumbersome to implement with latitude/longitude coordinate systems because the correct Z-factor is both hard to calculate and changes with latitude. Geographic data is especially confounding because the X-units are not the same as the Y-units. Both are in "degrees", but a degree in latitude (Y-units) is not the same distance as a degree in longitude (X-units).                                                                         Unfortunately, most free elevation data available online is only available in latitude/longitude coordinates. This data can be projected, but projecting raster data introduces errors in resolution and precision (see horizontal and vertical artifacts on illustration in manual). This extension modifies the algorithms used to calculate common morphological characteristics of the landscape so that they accurately work with latitude/longitude data without projecting the data or using Z-factor adjustments. All methods are described in detail in the manual, but in general this extension will always automatically detect the coordinate system of the raster and use the method appropriate for that coordinate system

• These tools offer several options not available in the standard ArcGIS tools: Including multiple slope and aspect algorithms, optional hypsometric shading for hillshades, the MDOW model for hillshades, and many more options for landscape curvature. 

• Surface Area and Ratio: This extension allows you to generate Surface Area and Surface Ratio rasters from an existing Elevation raster. The cell values for these new rasters reflect the surface area and (surface area) / (planimetric area) ratio for the land area contained within that cell's boundaries. Both Surface Area and Surface Ratio provide useful indices of topographic roughness and convolutedness, and can give a more realistic estimate of the land area available than you can get from the simple planimetric area. 

• These tools do not require Spatial Analyst: This extension uses only standard ArcGIS ArcObjects functions and therefore does not require a license for either Spatial Analyst or 3D Analyst.

Requires:  ArcGIS 9.2 or better, at any license level, or ArcGIS 10.

Important:  This extension does not require Spatial Analyst or 3D Analyst.  It will work just fine without any add-on extensions

Thanks to  Jeff Jenness    

To download the extension :

http://www.jennessent.com/arcgis/surface_area.htm

DEM Surface Tools Manual

Hawth’s Tools – Free Tools for Spatial Analysis

Hawth’s Analysis Tools provides a suite of solutions for tasks common in spatial analysis. Specifically developed for ecological studies, these tools can be used in any application for analyzing spatial data. They extend (and in some cases simplify) core ArcGIS functionality that is not available out-of-the-box. The extension consists of more than fifty tools that cover a broad range of analysis types including analyzing, sampling, and editing vector as well as raster data, and tools for common operations in tables and CSV files. All tools and descriptions can be found here:

Tool Descriptions

Analysis Tools Intersect Point Tool Distance Between Points (Within Layer) Distance Between Points (Betw. Layer) Count Points In Polygons Polygon In Polygon Analysis Sum Line Lengths in Polygons Line Raster Intersection Statistics Enumerate Intersecting Features Line Metrics Sampling Tools Create Random Selection Random Selection Within Subsets Generate Random Points Generate Regular Points Conditional Point Sampling Tool Create Vector Grid (lines/polygons) Create Sample Shapes (various shapes) Generare Random 3D Points Animal Movements Create Minimum Convex Polygons Calculate Movement Parameters Convert Locations To Paths Convert Paths to Points CRW Simulation I CRW Simulation II Kernel Tools Fixed Kernel Density Estimator Batch Fixed Kernel Density Estimator Percent Volume Contour Raster Tools Clip Raster Clip Raster By Polygons Landscape Characterization (fast) Extract Raster Edge Thematic Raster Summary (by polygon) Zonal Statistics ++ (by polygon) Spatial Replace Tool Maximum Grid Separation Tool Cellular Automata (1D x Time) Grid Spread (Cellular Automata) Raster Pixel Type Conversion Table Tools Add Area Field To Table Add Length Field To Table Add XY To Table List Unique Values Sum Values Delete Multiple Fields Add XY Line Data (creates line layer) CSV Management Tool Vector Editing Tools Create Buffers (Retain Attributes) Vector Rotation and Shifting Tool Snap Points To Lines Tool Intersect Lines (Make Points) Split Vector Layer By Unique Value Field Specialist Tools River Sample Extraction Point Redistribution Tool PLSS Point Finder Julian Day Lookup Other Tools Digitize XY Coordinates Set/Zoom To View Extent Bookmark

The tools run on ArcGIS 9.x at the ArcView, ArcEditor, and ArcInfo license levels. *These tools do not support on-the-fly projection changes, so it is important that tools that use more than one input layer have the same projection.

Download:
http://www.spatialecology.com/htools/download.php

Tools for Comparing and Analyzing Geodatabase Schemas

I found a very intersting  suite of tools written in Python for analyzing components of a geodatabase and for finding the differences between geodatabase schemas and thanks to Brooke Reams , Geospatial Analyst at Esri, for this suite. 
 The tools are accessible through an ArcGIS Toolbox called SchemaInspector.tbx. They are grouped into three categories:
1. Analyzer Tools
2. Diff & Compare Tools
3. Diff Tools

There are five tools under the Analyzer Tools toolset. These tools are for printing properties of a single geodatabase component. Each tool has parameters for the input workspace and the output text file (the output text file does not have to pre-exist).
1. Analyze Domains
- Prints properties to a text file for each domain in a workspace including Domain Type, Range, Field Type, Merge Policy, and Split Policy.

2. Analyze Feature Classes
 - Prints properties to a text file for each feature class in a workspace (geodatabase or feature dataset) including Shape Type, Shape Field Name, Feature Type, Spatial Index, Has M, and Has Z.

3. Analyze Fields
- Prints properties to a text file for each selected field in a feature class including Type, Alias, Base Name, Domain, Editable, Nullable, Length, Precision, Required, and Scale.

4. Analyze Relationship Classes
- Prints properties to a text file for each relationship class in a workspace including Backward Path Label, Cardinality, Class Key, Destination Class Names, Forward Path Label, Attachment Relationship, Attributed, Composite, Reflexive, Key Type, Notification, and Origin Class Names.

5. Analyze Tables
- Prints properties to a text file for each table in a workspace including Has OID and OID Field Name.


There are six tools under the Diff & Compare Tools toolset. These tools are for comparing particular geodatabase components between two workspaces. Each tool has parameters for the two schemas to compare and the output text file.
 1. Domain Diff & Compare
- Prints the names of domains that are not common between workspaces to a text file. Searches common domains and prints domain names and properties (same properties as the Analyze Domains tool) for domains with the same name but with different properties.

2. Feature Class Diff & Compare
- Prints the names of feature classes that are not common between workspaces to a text file. Searches both standalone feature classes and feature classes in feature datasets. Searches common feature classes and prints feature class names and properties (same properties as the Analyze Feature Classes tool) for feature classes with the same name but with different properties.

3. Field Diff & Compare (by Feature Class)
- Prints the names of fields that are not common between feature classes to a text file. Searches common fields and prints field names and properties (same properties as the Analyze Fields tool) for fields with the same name but with different properties.

4. Field Diff & Compare (by Workspace)
- Prints the names of fields that are not common between all feature classes in the workspaces to a text file. Searches both standalone feature classes and feature classes in feature datasets. Searches common fields and prints field anmes and properties (same properties as the Analyze Fields tool) for fields with the same name but with different properties.

5. Relationship Class Diff & Compare
- Prints the names of relationship classes that are not common between workspaces to a text file. Searches common relationship classes and prints relationship class names and properties (same properties as the Analyze Relationship Classes tool) for relationship classes with the same name but with different properties.

6. Table Diff & Compare
- Prints the names of tables that are not common between workspaces to a text file. Searches common tables and prints table names and properties (same properties as the Analyze Tables tool) for tables with the same name but with different properties.


There is one tool under the Diff Tools toolset. This tool is called Workspace Diff and combines all of the tools under Diff & Compare toolset into a single tool. There are parameters for the two schemas to compare and the output text file.


All of the tools can be used with Basic, Standard, and Advanced license levels. The tools can be used with ArcGIS 10.0 or higher, with the exception of the Analyze Domains tool, the Domain Diff & Compare tool, and the Workspace Diff tool which require ArcGIS 10.1 or higher (to use the Workspace Diff tool on 10.0, simply comment out the lines that compare domains [361 - 387] in the ws_diff.py file).

The SchemaInspector.tbx and all of the tools described above can be downloaded from the Geospatial Database for free. Right click on the link below and select Save As... to download the zip containing the .tbx and .py files. Unzip all of the files to the same folder location (toolbox and scripts use relatives paths). The tools can be accessed and executed from both ArcMap and ArcCatalog.

Schema Inspector Toolbox

Below is an image of the Workspace Diff tool and the output text file that is created when the tool is executed.

Free Remote Sensing Software :OPTICKS 4.10.0

Opticks is an expandable remote sensing and imagery analysis software platform that is free and open source. If you are interested you can learn about the history of Opticks.

If you've used commercial tools like: ERDAS IMAGINE, RemoteView, ENVI, or SOCET GXP, then you need to give Opticks a try. Unlike other competing tools, you can add capability to Opticks by creating an extension. Opticks provides the most advanced extension capability of any other remote sensing tool on the market.

Feature:

• Free and open source
• Supports the following file formats: NITF 2.0/2.1, GeoTIFF, ENVI, ASPAM/PAR, CGM, DTED, Generic RAW, ESRI Shapefile, HDF5, AVI, MPEG, JPEG, GIF, PNG, BMP
• Zoom, pan, rotate spatially large datasets
• Quickly layer GIS features, annotations, results, and other information over your data to provide context
• Many image display controls such as colormap, histogram, transparency, etc.
• Support for datasets larger than four gigabytes
• Analysts can quickly combine steps using graphical wizards
• Support for processing data in its native interleave of BIP, BSQ or BIL
• Get extensions to drop in new capability.

Download :

http://opticks.org/confluence/display/opticks/Download

Geographic Translator : MSP Geotrans 3.2

Geotrans 3.2 has been released. Geotrans is the coordinate conversion application or a geographic translator program among a wide variety of coordinate systems, map projections, and datums. Geotrans runs in Microsoft Windows, LINUX and UNIX environments. GEOTRANS can also be used to convert large numbers of coordinates contained in either text files (.txt) or comma separated values (.csv).

To convert a set of coordinates, simply select the coordinate system or map projection, the datum, in which your coordinates are defined, then enter the source coordinates, select the coordinate system or map projection, and the datum, to which you want the coordinates to be converted, and click on the Convert button. The resulting coordinates will be displayed.

 Download :

http://earth-info.nga.mil/GandG/geotrans/geotrans3.2/install.exe

AutoDEM (create DEM from scanned topographic maps)

AutoDEM (aka as AutoMNT) is a freeware GIS software to create Digital Elevation Models (DEM) from scanned topographic maps for Windows.
Through different data layers (map, contours, DEM, etc.), AutoDEM provides many tools for :

    Topographic map analysis
    Contour lines extraction and reconstruction
    Contours to DEM interpolation and DEM analysis
    DEM to TIN conversion
    Toponyms extraction

Most of the worldwide file formats used in the GIS community are supported. AutoDEM can also directly import data from web servers (TerraServer, WebMapService, WFS, …) 

What AutoDEM can do
Here are most relevant features of the software :

    Multi-layers interface to manage original map, extracted contours, elevation grid and triangular mesh.
    Common classical image editing tools (zoom, hand, selection, pen, eraser, lines etc.)
    Support every common image file formats supported by GDAL (JPEG, PNG, PGM, PNM, BMP, GIF …). Complete list
    Support most DEM file formats supported by GDAL. Complete list
    Plug-in based architecture through a DLL mechanism (a Development Kit is coming)
    Contour lines extraction from map through different filters
    Contour lines reconstruction and edition
    Tools to semi-auto set contour lines' elevations
    Contour lines interpolation with different methods like geodesic distances, Partial Differential Equations, Inverse Distance Weighted Averaging, Radial Basis Functions and kriging
    Elevations related tools
    Embossing filter to preview the terrain rendering
    Realtime 3D visualization and navigation with the Level of Detail (LOD) Duchaineau's `Realtime Optimally-Adapting Meshes' (ROAM) algorithm included (need an OpenGL graphic card)
    DEM to regular or irregular (TIN) mesh generation and export
    Import maps and DEM from WebMapFeature (WMS) or TerraServer
    Lot of other features…

As AutoDEM is still a research tool, it's updated very soon and will be developped for many years, and you are encouraged to ask us the improvements you would like to see and help us to make AutoDEM an easy-to-use and powerful tool. 

Download :

http://www.autodem.com/download/AutoDEM-v1.6.2b.zip

Image Analysis for ArcGIS

Interesting Courses  of image analysis for  ArcGIS


Table of content :

Introducing Image Analysis for ArcGIS . . . . . . . . . .. . . . . . . . 1

Quick-start tutorial . . . . . . . . . . . . . . . . . . . . . . . ..…... . . . . . 9

Applying data tools . . . . . . . . . . . . . . . . . . . . ... . ….. . . . . . . 51

Using Data Preparation  . . . . . . . . . . . . . . . . ...... .. . . . . . . . 67

Performing Spatial Enhancement . . . . . . . . . . . . . . . . . . .  . 79

Using Radiometric Enhancement . . . . . . . .. . . . . . . . . . . . . 95

Applying Spectral Enhancement  . . . . . . . . . . . . ... . .. . . . . 109

Performing GIS Analysis  . . . . . . . . . . . . . .. .. . . . . . . .. . . . 121

Using Utilities  . . . . . . . . . . . . . . . . . . . . . . ..….. . . . . . . . . . 137

Understanding Classification . . . . . . . . . …. . .. . . . . . . . . . 145

Using Conversion  . . . . . . . . . . . . . . . . . . . . . . ……. . . . . . 159

Applying GeoCorrection tools  . . . . . . . . . . . .. … . . . . . . . . 167

To download  the course :

http://gis.depaul.edu/geography/courses/243/IAfA.pdf

Split Layer By Attributes for ArcGIS

This is an intresting tool I used a lot to split a layer by attribute .

The tool takes a single shapefile and splits it into many shapefiles based on the unique values of a chosen field

1. Open ArcMap
2. Open Arctoolbox. 
3. Right click on the top level of the Toolbox and you should see a menu come up and one of the choices will be add toolbox. 
4. Navigate to the python directory and add the .tbx file.

Download :

http://resources.arcgis.com/gallery/file/geoprocessing/details?entryID=37AEB018-1422-2418-A036-CA6D9920F808

Why Use GIS in the Petroleum Industry ?

 The ebook mentioned below  can answer you how GIS technologies are being applied throughout the E&P industry, including in acquisition, seismic planning, exploration, drilling, production, distribution, pipeline, decommisioning, HSE and data management.

Find out how an organisation focussed on the oil and gas sector can benefit from applying intelligent mapping and location analytics technology.

You can download it for free 

http://www.exprodat.com/Forms/Why-Use-GIS-in-Petroleum.htm

Download gvSIG

gvSIG is a project dedicate to geomatic science. Download gvSIG free and you will be able to obtain and analyze geographic information in a very precise way

Download gvSIG

MapInfo Tools

Mapinfo Tools  presents an important resources for mapinfo users, you can find a wide range of interesting Utilities and add- ons that help to increase the functionality of MapInfo and make work easier

www.mapinfotools.com

GADM database of Global Administrative Areas

GADM is a spatial database of the location of the world's administrative areas (or adminstrative boundaries) for use in GIS and similar software. Administrative areas in this database are countries and lower level subdivisions such as provinces, departments, bibhag, bundeslander, daerah istimewa, fivondronana, krong, landsvæðun, opština, sous-préfectures, counties, and thana. GADM describes where these administrative areas are (the "spatial features"), and for each area it provides some attributes, such as the name and variant names.

The data are available as shapefile, ESRI geodatabase, RData, and Google Earth kmz format. Shapefiles can be used for most mapping and "GIS" software. You can download a free program such as Q-GIS or DIVA-GIS. The RData files can be used in R with the 'sp' package loaded.

You can download the data by country or for the whole  world.

Open Signal Maps.

The Open Signal Maps designed for Androids monitors the signal strength in a network. The application shows the direction and the location of the tower the phone is connected to and also displays the strength of the signal that it is receiving. Network speed can also be easily determined by self run tests on the application.

  

 Users can share the data the app gathers with the OpenSignalMaps website, where the information is processed and visualized on a map.

The website allows users to drill down into the data by network and network type, allowing them to find which network has the best coverage  and  comparisons of download speeds   in any location.

web site  : http://opensignal.com/   
 Download Open Signal Maps          

ArcBruTile - Tile Services in ArcGIS Desktop

ArcBruTile display maps from OpenStreetMap, Bing, SpatialCloud, MapQuest, Europa Technologies, VR-TheWorld Online, Mapbox, Stamen Design, PDOK and others in ArcGIS Desktop.

Supported maps

• Stamen: Terrain, Toner, Watercolor http://maps.stamen.com
• Cloudmade: Fresh, Midnight Commander, Pale Dawn http://maps.cloudmade.com
• MapBox: Streets, Natural Earth http://mapbox.com/maps/
• OpenStreetMap: Hike and Bike Map http://hikebikemap.de/, Open Cycle Map http://www.opencyclemap.org/
• MapQuest: OpenAerialMap http://www.mapquest.com/
• PDOK: BAG, BRT, Natura2000, Nok2011, Top10nl, Top50 Raster, Top50 Vector, Top250 Raster (layerfiles)

Download ArcBru Tile

Screenshot:

Télécharger gratuitement ArcGIS

Download for free ArcGIS :
Télécharger gratuitement  ArcGIS:
http://www.esri.com/software/arcgis/trial