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Didger®
.All the advanced digitizing features you need in a low-cost,
unbelievably versatile program
All the advanced georeferencing, digitizing, coordinate conversion, and
mapping features you need in a low-cost, unbelievably versatile program.
This is the ultimate geoprocessing and data conversion tool for any map
maker, cartographer, geologist, oil and gas professional, or GIS
analyst.
What Would You Like to Learn
About Didger?
-
One Program
- Innumerable Uses
There are innumerable uses for this powerful
application. We have compiled this list to give you an idea of the
versatility of Didger, but the ways in which you can use Didger go far
beyond this list. If you aren’t sure whether Didger is right for your
needs, give us a call and we’ll be happy to discuss the possibilities with
you.
- Georeference your raster and vector files
for export to other applications.
- Convert your UTM data to Lat/Long or vice
versa.
- Create maps from multiple Digital Line
Graphs.
- Resample your well log data on specified
intervals.
- Digitize oil & gas or monitoring
wells.
- Digitize soil, rock-chip, or other sample
locations.
- Digitize contours from topo sheets,
hand-drawn maps, or computer-generated maps.
- Digitize from aerial or satellite
photographs either onscreen or from your tablet.
- Reproduce well logs or strip charts even
when you don’t have the original data.
- Digitize township and range lines,
section lines, or claim boundaries.
- Digitize owner, operator, or property
boundaries.
- Digitize seismic section lines with shot
point locations.
- Digitize stream, river, watershed
boundaries, lakes, and coastal shorelines.
- Map archeological sample sites.
- Determine stream length, shoreline
length, or watershed or lake area.
- Apply Didger in medical research, such as
digitizing radiation dose calculations from patient films.
- Study urban growth such as expansion of
residential areas.
- Digitize road and street maps and obtain
route distances.
- Reproduce hand-drawn cross
sections.
- Digitize wildlife information such as
animal habitats, migratory routes, and territorial boundaries.
- Digitize geological rock formations,
lithologic types, and faults from maps and aerial photos.
- Digitize vegetation boundaries, burn
areas, restoration projects, and lumbering areas.
- Determine the area under a curve from a
graph.
- Digitize meteorological data to produce
isobar maps.
- Create spreadsheet files for data
analysis.
- And many other uses!
Some of
Didger’s Superb Features
- Digitize any map, graph, aerial photo,
site map, or printed image regardless of size using any Wintab32
compatible tablet.
- Digitize a vector or raster project
onscreen.
- Digitize 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.
- Organize 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.
- Digitize 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 digitize.
- 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 digitizing 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 digitizing 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.
- And much more!
Digitizing
Options
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!
Raster Based
Maps
With Didger you can perform onscreen
digitizing using an imported bitmap or an image you scanned using Didger’s
scanning functionality. Performing "Heads-Up" digitizing has never been
easier. Didger has all the functionality necessary to import or scan in a
bitmap and calibrate the image in real world coordinates using one of ten
georeferencing methods.
Once the image has been calibrated, Didger
allows you to digitize points, polylines, and polygons with ease. You can
export the digitized objects with the image in GeoTIFF format. Or, simply
export the digitized objects without the underlying bitmap and still
retain the georeferencing information. Use the numerous bitmap filtering
options on the bitmap to make identifying and digitizing the objects a
breeze.

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.
Georeferenced
Raster Based Maps
A georeferenced raster image retains all
georeferencing parameters. When you import a georeferenced raster image,
you can skip the calibration process and start digitizing immediately. You
can import a georeferenced raster image into a vector or a raster
project.
If you import a georeferenced bitmap into a
vector project, you can overlay it with other data or vector files or tile
it with other georeferenced bitmaps.

Import georeferenced
bitmaps into a vector project and then overlay it with data and vector
files.
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.

Import a bitmap into a
raster project, calibrate it, and warp it to fit the calibration
points.
Didger also supports importing and/or
exporting ESRI World Files [TFW] and Blue Marble [RSF] files when
exporting georeferenced bitmaps. This is a powerful and advanced feature
of Didger!
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.

This graphic shows three
vector files and a data file imported into a vector project in the
Lambert Azimuthal Equal Area projection.
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. All supported projections
include:
Albers Equal
Area Conic |
Orthographic |
Azimuthal
Equidistant |
Polyconic |
Eckert
IV |
Robinson |
Eckert
VI |
Robinson-Sterling |
Equidistant
Conic |
Sinusoidal |
Equidistant
Cylindrical |
State Plane
1927 |
Gauss-Kruger/Gauss Conformal |
State Plane
1983 |
Lambert
Azimuthal Equal Area |
Stereographic |
Lambert
Conformal Conic |
Transverse
Mercator |
Mercator |
Unprojected
Lat/Long |
Miller
Cylindrical |
UTM |
Mollweide |
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In addition to projection and datum
transformations, Didger can also convert coordinates of vector projects by
utilizing 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 allows the user to convert the current project to the new
destination coordinate system. The possibilities are endless and the
flexibility is astounding!

Create stunning world maps in
a variety of projections to convey your information easily. The graphic
above uses the Equidistant Conic projection.
Advanced
Editing Features
- Create line intersections from
overlapping polylines.
- Snap undershoot polylines and trim
overshoot polylines.
- Create polygons by using a polygon
locator in the center of linked polyline objects.
- Reshape polylines and polygons.
- Create complex polygons.
- Thin and smooth polylines using one of
four different methods.
- Resample polylines to specified
intervals.
- Break or Trim polylines.
- Convert polylines to polygons and vice
versa.
- Connect polylines.
- Create polygons by locator or by
ID.
- Merge two polygons together, or create a
polygon from the intersection of two polygons.
- Combine, split, and/or reverse islands
and lakes.
- Select up to 256 colors to be transparent
for a bitmap.
- Sharpen bitmaps, or adjust the
brightness, contrast, and saturation.
- Apply Median or Spatial filters to
bitmaps.
- View the coordinates of selected objects
in the Coordinate Manager.
- Edit the coordinates of selected objects
in vector projects in the Coordinate Manager.
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.
These are some of the formats ...
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.
Export formats: LAS, EMF, GSI, GSB,
DAT, DXF, SHP, BLN, BNA, GIF, BMP, WMF, CGM, MIF, CLP, TIF, TGA, PCX, WPG,
PNG, JPG, PCT, DCX.
Important News
about Digitizing Tablets
Nearly all digitizing tablets work with
Didger. If you already have a tablet, Didger requires a 32-bit WinTab
compliant digitizing tablet driver, available from most tablet
manufactures (for no charge) or from third party vendors.
If you don’t currently own a tablet, you
shouldn’t be discouraged. The price of new, high-resolution digitizing
tablets is astonishingly low. And with Didger’s capabilities, large maps
are easily digitized in a single project so even smaller tablets work
quite well.
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