Didger Digitizing Options

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Raster Maps

There are three ways you can digitize information from your source documents or files. You can digitize hard copy documents using any Wintab32 compatible digitizing tablet. You can digitize digital information, such as vector or raster files, onscreen. You can also use your GPS unit to digitize your position or trace your route directly onto a map imported into a vector project.

Didger-Georeferencing, digitizing, and coordinate conversion software
The graphic above shows the boundary of the Modoc Plateau in Northern California being digitized in blue from a calibrated raster image of the geology of California.

Georeference and Rubber Sheeting

If you import a georeferenced bitmap into a raster project, you can convert the projection of the bitmap (if it contains a projection) or you can warp (rubber sheet) the image to fit your calibration points.

Didger also supports importing and/or exporting ESRI World Files [TFW] and Blue Marble [RSF] files when exporting georeferenced bitmaps.

Import a bitmap into a raster project, calibrate it, and warp it to fit the calibration points.

Vector Based Maps and Data Files
With Didger you can import a variety of vector based maps and data files in many formats. Create large coverages easily by importing several vector or data files into one project. The files will align according to their coordinate systems. Digitize new features onto an existing vector plot from your digitizing tablet and map, or digitize onscreen. Change line styles, object IDs, and add labels to objects with ease. Even import different files onto separate layers!

If the files are projected and contain different projection information, they will be converted to the projection of the first imported file using a datum transformation. You can also convert vector or data files from one projection to another.

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