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 This is quite useful if you’ve got historical documents or perhaps just a screen shot of the information in graphical form.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.

Engauge digitizer program