Taking Measurements

In Ubuntu, the OpenDrop.py file can be made "double-clickable" by changing the default Nautilus preferences (Edit --> Preferences --> Behaviour).

Alternatively, run the code in the terminal using the script file "run" with the command:

.\run

The following window will open, ready for user input:

Here we can set the physical properties of the system, and choose the graphical outputs we want to show as opendrop is running. We also choose the directory and the file we want our output data to be written to. We can also specify whether we want to use an already generated image (Local images), or whether we want to acquire and process images using a camera (currently either Flea3 or USB).

Setup

Select drop region:

Processing frame 1 of 1...
__________________________________________________________________________
| Step |  Error   | x-centre | z-centre | Apex R_0 |   Bond   | w degree |
|   1  |   0.7254 | 510.0042 | 355.0740 | 190.4734 |  0.21730 | -0.74084 |
|   2  |   0.2172 | 510.0236 | 355.0909 | 190.4750 |  0.21725 | -0.74488 |
|   3  |   0.2171 | 510.0237 | 355.0909 | 190.4750 |  0.21725 | -0.74489 |
|   4  |   0.2171 | 510.0237 | 355.0909 | 190.4750 |  0.21725 | -0.74489 |
Convergence in parameters

In [ ]:

Time (s),IFT (mN/m),Volume (uL),Area (mm2),x-apex (px),y-apex (px),Apex radius (px),Bond number,Rotation (degree)
   0.00000,  71.78098,  10.95089,  23.80818, 510.02365, 355.09087, 190.47503,   0.21725,  -0.01300