GEO-MAPS – High Quality GeoJSON maps programmatically generated

November 23, 2017

GEO-MAPS – High Quality GeoJSON maps programmatically generated

The purpose of this project is to programmatically extract maps from open databases like OpenStreetMap providing you with a ready to use GeoJSON map that fits your needs.

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Canvas Flowmap Layer

November 23, 2017

Canvas Flowmap Layer

Explore origin-to-destination layers with different relationships:

  • ONE 2 MANY
  • MANY 2 ONE
  • ONE 2 ONE

Leaflet.Canvas-Flowmap-Layer

The Leaflet.Canvas-Flowmap-Layer is a custom layer plugin for LeafletJS to map the flow of objects from an origin point to a destination point by using a Bezier curve. GeoJSON point feature coordinates are translated to pixel space so that rendering for the points and curves are mapped to an HTMLCanvasElement.

Flowmap

November 23, 2017

Flowmap is a program for geographical analyses. It is specialized in displaying interaction data, like commuting and migration flows, interaction analysis like accessibility analysis, network analysis, and interaction modeling.

Flowmap uses several kinds of data, which can be grouped into three classes: maps, flow data and distance table

 

 

Layer Spy

November 20, 2017

Layer Spy

 

GIS (Geographic Information Systems): Terms & Concepts

November 20, 2017

GIS (Geographic Information Systems): Terms & Concepts

Need to know what raster data is? Did someone say “Horizontal geodetic datum?”

Check out Esri’s comprehensive GIS Dictionary! For exploring GIS research in depth, see the GIS Bibliography, a massive index of GIS research.

 

EPA Geospatial Data Download Service

November 19, 2017

To improve public health and the environment, the EPA collects information about facilities or sites subject to environmental regulation. The EPA Geospatial Data Access Project provides downloadable files of these facilities or sites in the following formats: Extensible Markup Language (XML), Keyhole Markup Language (KML), ESRI Geodatabase, and Comma Separated Value (CSV). Within the file is key facility information, along with associated environmental interests for use in mapping and reporting applications. If you find erroneous data within the download file(s), please click on the “Report an Error” button to notify the EPA of data errors.

Find additional EPA data through EPA’s Environmental Dataset Gateway (EDG). Use the EDG to search for, discover, view, and access EPA’s environmental resources.

OSM landuse tool

November 19, 2017

OSM landuse tool calculates the landuse based on OpenStreetMap (OSM) data.

Batch conversion from KML to ESRI shapefile using Arcview 3.x

November 15, 2017

Batch conversion from KML to ESRI shapefile using Arcview 3.x

One the ways to convert data from kml to shape-file format is to use special extension for Arcview GIS 3.x. This extension switches on additional menu which contains 3 instruments: import for polygons, lines and points. Import can be done in batches, for this, several KMLs should be selected pressing SHIFT while selecting in Arcview “Open Google KML file” box.

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To start using this extension – download, install and switch it on – kml2shp.avx (File\Extensions…)

OGC GeoPackage: Expanding the Realm of Geospatial Capabilities

November 14, 2017

OGC GeoPackage: Expanding the Realm of Geospatial Capabilities

An OGC GeoPackage is a portable database that may contain raster maps and imagery, vector features, and elevation data. GeoPackages are optimized for sharing and displaying these types of geospatial data on mobile mapping systems, and GeoPackage extensions may be developed to support additional types of geospatial data such as routing networks. This blog post will discuss what GeoPackage extensions are, how they are developed, and how they can provide new geospatial capabilities to meet the requirements of a diverse user base.

OSM Geography Awareness Week

November 14, 2017

OSM Geography Awareness Week

Nov 12-18, 2017

Teachers, students, community groups, map lovers, in the US and around the world, join together to celebrate geography and make maps with OpenStreetMap, the free and openly editable map of the world.