Web Mapping

Spatial Ventures designed a variety of webmapping applications, mainly using Geoserver and ArcGis Server (ArcGis for Server).

Lately, we have been developing webmaps based on Openlayers 3 (and v4), in combination using ajax based database server requests. Automated zoom and getfeature information with ‘on-click’ events have been implemented, see a demo for the PNG-Region.

Openlayers 4 Demo Map
Below Web mapping demonstration is built on Geoserver, Openlayers & Geoext, using vector and raster layers (GeoTiff & ErdasImg formats, ArcGis Rest and Google):

NC Forest Cover Change


Principles of browser-based data entry based on Web Feature Service (WFS) are a shown here as a way of capturing GIS information through a simple browser interface, handy for non-technical office personnel.
Open Source Application for the Government of Afghanistan, 2011, to collect rural information from provincial offices, based on Geoserver and Openlayers:

Web-based data entry - wfs & geoserver

A test version is available here.


The early days –
Integrating GIS and textual MIS information through ArcGis Server and MS SqlServer – delivering a webbased mapping platform
for the Minsitry of Rural Rehabilitation and Development (MRRD), Afghanistan, 2009/10.
‘On-the-fly’ ArcServer and SqlServer data Linkage, implemented in .net (VisualStudio), visualising country-wide project development data.
Workflow:
Sql-User request (according to Filter) => Result/Data aggregation from SqlServer =>
Classification in ArcGis Server (ClassBreaks) => Creation of a colour-shaded GraphicsLayer as backdrop.

Map-tips showing polygon feature related detail, mouse-clicks are triggering SqlServer request and display.

webmap2