e-dat GridRat is based on the OS OpenSpace mapping toolkit supplied by Ordnance Survey, which is under-pinned by OpenLayers technology.
The information is obtained by moving the mouse pointer over the underlying Ordnance Survey or Google Map and is fedback to the user through the Map Controls panel which is to the left of the page. This information displays the British National Grid Reference for that 'point' on the map and also highlights the 'area' this Grid Reference refers to. This area is defined by selction through the appropriate radio button within the Map Controls Grid panel. There is also an option which allows measurement by sketching on the map. This can be either a linear or area measurement.
The map has zoom and pan controls available, and covers the whole of the British Isles.
To access this page click on the e-dat GridRat heading above or the image to the right.
e-dat GridNet is based on Bing Maps supplied by Microsoft. GridNet is currently under active development and is available here as preview software with limited functionality. GridNet uses the Bing Maps AJAX Control v7 and makes available OS Explorer (1:25000) and Landranger (1:50000) maps.
The application currently has only limited zoom and pan controls available, with convenience controls for certain zoom levels and map locations.
To access this page click on the e-dat GridNet heading above or the GridNet map image.
e-dat GridNet+ is based on the Silverlight Bing Maps Control supplied by Microsoft. GridNet+ is currently under active development and is available here as preview software with limited functionality. GridNet+ requires Microsoft SilverLight to be installed on your PC, and will prompt you to install/update your version where required.
The interface is updated from GridRat and toolbars can now be dragged around the map and be made semi-transparent to allow viewing of the underlying map detail. A useful feature of silverlight is the ability to run in full screen mode with no borders. This means the whole screen area can be filled with a map, as shown in the image to the right which is a direct full screen capture from the development machine.
The OS Explorer 1:25000 range of maps is available at certain zoom levels and the application can be run in full-screen mode which maximises the working surface and allows viewing of greater map extents at one time.
GridDoubleMap is based on the OS OpenSpace mapping toolkit supplied by Ordnance Survey, which is under-pinned by OpenLayers technology.
Leading on from the foundation work of GridRat, GridDoubleMap extends GridRat to give the user the option of switching between a single or dual map interface. Maps can be linked to allow automatic tracking when zoom levels and locations are changed in one map to reflect the changes in the other map. A suggestion for use if maps are not linked is to use one map as an overview map while the other can be zoomed in to show a more detailed view of an area. After some further development and testing this will replace the current 'single view only' interface of GridRat.
Like GridRat the maps have zoom and pan controls available, and cover the whole of the British Isles. If maps are unlinked then the controls act independently on each map.
To access this page click on the GridDoubleMap heading above or the image to the right.
The interface has been updated recently to reflect more the design within GridRat which accomodates the tools for zooming and moving around the map. This gives easy access to the tools for these necessary map functions.
This is a Geographic Information Systems (GIS) web page which is currently under development and is updated regularly when more features are added to the application - particularly for supporting Attribute and Import/Export functionality. The map supports Point, Line and Polygon features and is projected between the Ordnance Survey OpenSpace base map and the Google maps so there can 'appear' to be shifting in the drawn features. This is due to the differences in the way the OS and Google display the maps and the features are 'shifted' on the layers to accomodate these different projections and zoom levels.
e-dat SquareTag is designed to allow simple tagging of National Grid Squares for the purposes of recording and survey work. As an example, this could be the assignation of squares to a surveyor for a particular survey, or simply used to highlight coverage of an atlas through a particular phase in its production. All frequently encountered National Grid Square sizes are available for selection and different resolutions can be mixed within one map. To 'tag' a square simply click on the map and the Grid Square at the chosen resolution will be highlighted. Then type in the appropriate Feature Info in the panel for that square. To remove a square simply click on it again.
Currently there is an option to export the plotted squares as a text file which can be saved through any text editor (for example 'notepad' in Microsoft Windows) to the local machine by selecting 'Polygon' as the export type and then copying the text in the import/export panel and pasting into the text editor application. To import the text document in a later browser session the text document should be pasted into the import/export panel and 'Polygon' should then be chosen as the import type. This standard text file can also easily be e-mailed for distribution.