Graph Digitizing

Step 1: Calculate conversion coefficients for converting screen pixels to the graph’s units

(a) Click a point with known coordinates on the y-axis, then enter its (x,y) coordinates

x:

y:

Is the y-axis on a logarithmic scale? Please enter 1 for “Yes”, or 0 for “No”:

(b) Click a point with known coordinates on the x-axis, then enter its (x,y) coordinates

x:

y:

Is the x-axis on a logarithmic scale? Please enter 1 for “Yes”, or 0 for “No”:

Step 2: Start digitizing:

Click along the line of interest, then click the “Digitize and print results” button. The coordinates of the point at each click will be recorded as an “X,Y” pair and stored in a text file called “xy.txt”. To download the results click the “Download file ‘xy.txt'” button.

X,Y :

Download file ‘xy.txt’