Engauge Digitizer 3.0 review

Engauge Digitizer project is digitizing software that converts an image showing a graph or map into numbers

License: GPL (GNU General Public License) File size: 0K Developer: Mark Mitch

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Engauge Digitizer project is digitizing software that converts an image showing a graph or map into numbers. The image file can come from a scanner, digital camera, or screenshot. The numbers can be read on the screen, and written or copied to a spreadsheet.

Highlights for beginners include an intuitive interface and extensive context-sensitive documentation. Highlights for experts include compensation for image distortion, cartesian and polar coordinates, linear and logarithmic coordinates, automatic scanning, graphical previews, and browser help.

Requirements:
The following image file formats are supported:

BMP Windows Bitmap
GIF Graphics Interchange Format
JPG Joint Photographic Experts Group
PNG Portable Network Graphics
PNM Portable aNy Map
XPM X PixMap

A graph must have two labeled axes, and can have any number of curves. The user sets up the coordinates by adding points along the two axes, and then digitizes the image by adding points along the curves. The digitized data is then available for export to other tools.
A map must have a scale bar. The user sets up the scale by adding a new scale bar on top of the scale bar in the image, and then digitizes the image by adding measures. The measures show angle, distance and area information. The digitized data is then available for copying and pasting into other tools.

What's New in This Release:
This release offers browser-based support for dates and times.
Also, for the rare polar plot with decibel units for the radial coordinate, this release supports a nonzero radius at the origin.