There has never been a more comprehensive, powerful, all-in-one data conversion software solution that provides an easy-to-use and intuitive user interface for digitizing, georeferencing, coordinate reprojection, tiling, and creating image mosaics. Didger solves the problem of combining data files in different file formats and in different coordinate systems, by providing extensive tools to transform your GIS data into one cohesive coordinate system.


Click on the Edition to see more information and pricing

Didger 5.0


Didger 5.0

Didger is a highly accurate digitising program that precisely transforms points, lines, or areas from your paper maps, graphs, aerial photos, scanned raster images, imported vector files, or GeoTIFF images to a versatile digital format you can use with your other software.

There are three ways you can digitise information from your source documents or files. You can digitise hard copy documents using any WinTab32 compatible digitising tablet. You can digitise digital information, such as vector or raster files, onscreen. You can also use your GPS unit to digitise your position or trace your route directly onto a map imported into a vector project.

Map Projections and Coordinate Conversions

Converting data from one coordinate system to another is one of Didger's advanced features. Didger supports over 20 projections and over 200 datums. Easily calibrate or import your files using one of these projections and convert your coordinates between them. For example, with a few simple steps Didger can transform your Lat/Long point data into Universal Transverse Mercator (UTM) coordinates to be used by other mapping applications.

In addition to projection and datum transformations, Didger can also convert coordinates of vector projects by utilising either a math or georeference operation. Converting coordinates by applying a simple math operation allows the user to specify a value to add, subtract, multiply, or divide to the current vector project. Advanced georeferencing conversion is also available. By specifying the source and destination coordinates of the vector project, Didger’s georeferencing methods allow the user to convert the current project to the new destination coordinate system.

Import and Export Formats

Many sophisticated import and export filters come with Didger, simplifying the transfer of your data and images to and from your other applications.

Spatially referenced formats: GeoTIFF, TFW, and RSF.

Vector import formats: EMF, GSI, GSB, BNA, DLG, LGO, LGS, DXF, PLT, BLN, CLP, WMF, SHP, MIF, DDF, E00.

Raster import formats: TIF, BMP, TGA, PCX, GIF, WPG, DCX, EPS, JPG, PNG, PCT.

Data import formats: XLS, SLK, DAT, CSV, TXT, BNA, WKx, WRx, BLN.


Features of Didger

  • Digitise any map, graph, aerial photo, site map, or printed image regardless of size using any Wintab32 compatible tablet.

  • Digitise a vector or raster project onscreen.

  • Digitise directly into a vector project using a GPS unit.

  • Display all the raw data being sent form the GPS unit or save it to a data or text file.

  • Average the data from the GPS over x number of sample points.

  • See the current position of the satellites that are being used for a lock for the GPS.

  • Display all GPS displays and settings.

  • View the current elevation with the GPS unit.

  • Thin and smooth objects by selecting point selection removal, deviation distance, vertex averaging, or spline smoothing options.

  • Reshape objects by adjusting individual nodes.

  • Combine, split, and/or reverse islands and lakes.

  • Merge two polygons together, or create a polygon from the intersection of two polygons.

  • Import any vector file and retain or apply up to 23 map projections. Projections supported are: Universal Transverse Mercator (UTM), State Plane 1927, State Plane 1983, Albers Equal Area Conic, Azimuthal Equidistant, Eckert IV and VI, Equidistant Conic, Equidistant Cylindrical, Gauss-Kruger/Gauss-Conformal, Lambert Azimuthal Equal Area, Lambert Conformal Conic, Mercator, Miller Cylindrical, Molleweide, Orthographic, Polyconic, Robinson, Robinson-Sterling, Sinusoidal, Stereographic, Transverse Mercator, and Unprojected Lat./Long.

  • Specify one of over 200 datums for your project.

  • Convert the projection of a bitmap in a raster project.

  • Warp, or rubber sheet, your calibrated raster image to fit any calibration units.

  • Import a georeferenced bitmap into a vector project and overlay it with other data or vector files, or tile it with other georeferenced bitmaps.

  • Add a graticule or a grid automatically to your project.

  • Display the coordinates of selected objects in the Coordinate Manager.

  • Define a polygon and use it to clip a bitmap

  • Specify up to 256 colors to be transparent for a bitmap.

  • Export directly to Surfer using the Create Surfer Base Map command.

  • Use the Create Post Map option when importing a data file.

  • Organise your data into different layers with the easy-to-use Layer Manager.

  • Select objects with And/Or criteria.

  • Resample polylines at a specified interval along either the X or Y axis.

  • Use the built-in scanning features to import a bitmap using any TWAIN compatible scanning device.

  • Import vector or raster files using any of the 27 formats that Didger supports.

  • Import data points from 9 different data formats.

  • Export vector or raster files using any of the 23 formats that Didger supports.

  • Import and export spatially referenced images including GeoTIFF, TFW, and RSF.

  • Calibrate your project using Cartesian or Projected coordinate space types.

  • Specify map datum parameters and perform datum transformations using the following methods: Molodensky, Bursa-Wolfe, DMA Multiple Regression Equations (RME), and user defined.

  • Specify projection parameters when importing data or vector files.

  • Combine vector maps from different projections into a single map projection.

  • Digitise different cultures on separate layers and export only selected layers.

  • Use Didger data with Surfer®, Grapher™, MapViewer™, or any other mapping, graphing, or database application.

  • Associate and display up to four data values or identifiers for each object.

  • Use any units (feet, angstroms, miles, meters, kilometers, etc.) with any combination of linear or logarithmic axes.

  • Determine allowable error for your project and work within acceptable standards based on statistical calibration analyses.

  • Obtain length information from polylines.

  • Obtain polygon area and perimeter length.

  • Zoom in or out to display any portion of the project.

  • Set project limits for the extent of your project, or let Didger define default limits.

  • Automatically assign IDs or assign data as you digitise.

  • Edit polylines and polygons with the numerous editing tools.

  • Define tolerance settings controlling the chaining and sensitivity of polyline and polygon creation.

  • Get immediate help for all aspects of Didger, including useful digitising examples, from the extensive online help system.

  • Use the highly accurate and simple-to-use Tablet Calibration Wizard using between 3 and 256 calibration points.

  • Receive unlimited technical support for as long as you own Didger.

  • Create and print a report of all or selected objects in your Didger project.

  • Print the entire map in full color.

  • Use the mouse, the digitising tablet pointer, or both while completing project work.

  • Enjoy over 440 Megabytes of Digital Line Graphs and Digital Raster Graphs for the Grand Canyon, Rocky Mountain, and Yellowstone National Parks included on the CD.

  • Enjoy over 80 Megabytes of boundary files, including boundaries for US 3- and 5-digit ZIP codes, US states, US counties, US State Plane delineations, US city point locations, and world countries.