After a plane is defined (by marking three coordinates on the picture), one can mouse over the graph to find the numerical coordinates of each points.Ĭan it be automated? Online documentation seems to be nil. But in PlotDigitizer, you also can modify, delete, and sort the extracted data.DataThief is a nifty Shareware utility for extracting the coordinates from an image of a graph. In Datathief, you can save the extracted data and retrieve it back.
.DATATHIEF SOFTWARE
Automatic extractionīoth the software offers automatic extraction. Plotdigitizer allows its users to share the extracted data into numerous formats, that includes, CSV, JSON, MS Excel, Array. With Datathief, you can only export the extracted data into “.txt” files. Further, you can customize the level of magnification. PlotDigitizer is equipped with a zoom panel. This tool magnifies the portion of graphs around the cursor, so you can more accurately mark points. The zoom panel is a very useful tool, especially when you are extracting data points manually. With PlotDigitizer, you can extract the data from linear and nonlinear scales (logarithmic, date, polar, time, inverse). Axis scalesĭatathief has limited axis scales. Conversely, Datathief has no such useful features. You can crop, zoom, flip, rotate, and scale the image. In PlotDigitizer, all required image editing attributes are embedded. We need to edit the image, for example, cropping the image to remove the unwanted portion. Many a time, the image or scanned document available to us is not perfect. On the other side, PlotDigitizer, besides common formats, accepts several image formats. Images supportĭatathief accepts only standard image file formats, like PNG, JPG, GIF.
In contrast, Datathief has an old, outdated GUI. PlotDigitizer provides a modern, aesthetic, and easy-to-use interface and user experience, which could save significant time for newbies. PlotDigitizer shines out among all digitizers in the user interface and user experience. Further, you can calculate distance, angle, and area on an image. With PlotDigitizer, you can extract data from XY, bar (horizontal), bar/column (vertical), ternary, polar, maps, and pie/doughnut. There is no support for other types of graphs. Graph typesĭatathief only works with XY graphs and polar diagrams.
.DATATHIEF INSTALL
Unlike in Datathief, there is no need to install any other external dependencies. PlotDigitizer is also available for all operating systems. However, you need to install Java from its official website to execute the software. Since Datathief is coded in Java, it would run in any OS: Windows, Linux, and macOS.
.DATATHIEF PRO
To access all the features, you have to purchase the pro version. Though the free version has limited features, they are ample enough for basic data extraction. PlotDigitizer, in contrast, offers its users a FREE online version.
You can use it only offline after installing the software on your machine. Online interfaceĭatathief provides no web version. This guide lists and compares the differences between both software. Although Datathief is able to extract data, it lacks a lot of features and functionalities compared to PlotDigitizer, which is available at a similar price. A single license of Datathief III costs around $25.
As said earlier, it is shareware, so you need to purchase the license after evaluation. Since it is written in Java, you need to have Java installed on your computer to run the software. Datathief is a shareware made in Java that is capable of extracting data from XY graphs.
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