![]() The application has a well-organized user interface that allows the easy loading and scaling of data so the user can easily select points displayed in the geometry. All the program does is to reverse-engineer graphs to their source data. This tool is a handy application that can be used to convert graphical data into numbers. However, when it comes to data to be fed into machines, the best route is to use data on a spreadsheet because computers understand numbers better than graphics. There are some that stick to graphical representation that allows the human to easily view the trends and statistical patterns without really studying the nitty-gritty of the data involved. Once the data is in a file it can be opened with a spreadsheet program like OpenOffice Calc or perhaps further processed with an interactive mathematics program like SciLab.In report presentations, there are several standards applicable to different projects. Once the export settings are configured go ahead and use File->Export to save the data to a file. This is what the data will look like that is exported into the text file. A preview of the export is shown at the bottom of the screen. The export settings screen allows the user to set several different options for the data export. The next step is to have a look at the export setup. I like to export them as a CSV format, a text file with each line having paired values separated by a comma. Once the full curve is selected it is necessary to export the curve to a plain text file. If you mouse over one of these groups the corners of a box which define the area of the curve are shown.Įach time you click on a line it will convert the pixels in that group into data points and show them with cross marks. The program has divided up the lines from the file into groups. Next, cruse over to Digitize->Segment Fill and it will re-highlight the curves on the graph and activate the line fill mode. Just make sure you carefully position the cross hairs where you want them and try to keep the x & y axis point inline with the origin as much as possible. The three points are (0, 0) / (x_max, 0) / (0, y_max).ĭefining the axis points is quite simple. These three points will define the origin and scale used to translate pixels from the picture file into data points. Next head over to the Digitize->Axis Points menu item and this is where you will define three points on the graph. bmp/.jpg/.gif/.png file you selected it will be shown with the curves from the image auto highlighted by the program in green. Its named engauge and sports an icon with a graphical curve and axis.įire up the program and head over to the File->Import menu command as shown.Īfter importing the. Just find the application in the folder you downloaded and double click it to fire it up. It doesn’t come with an “installer” program that adds it to your start menu. Only little quirk is you’ll need to run it directly from the downloaded folder. An executable file is available for Windows. Here is where you can find the author and the program. Then open it with Engauge and turn it into a CSV file of paired data points. Take a screen shot of the data and then copy and paste it into a paint program and save it as a JPEG. What a wealth of information but it can be a bit laborious to extract the data for calculations in a program like SciLab. Thanks to the wonder of Google Books the ASM Atlas of Stress Strain Curves is available online. As of late I’ve been using Engauge Digitizer to create data points from stress-strain curves. This is quite useful if you’ve got historical documents or perhaps just a screen shot of the information in graphical form. I was reading emails from the yahoo CalculiX users group and somebody had mentioned using a digitizing program create a dataset from scanned data. I discovered this nifty program a few weeks back.
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