DGM · Software · Examples

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Standard examples (A-F) (1.3 mb) openCarp examples (G-H) (2.6 gb)

For each different type of input we provide an example. You can download these examples below and try them out yourself to see what results you can get. Below you will find some possible renderings made from these example files.


A. Regular reentry 3D
B. Regular focal 2D
C. Irregular reentry 2D
D. Irregular focal 3D

Clinical **

E. Regular reentry CARTO *
F. Regular focal CARTO *

openCarp simulation

G. openCarp 3D irregular reentry
H. openCarp 2D irregular reentry (will render to C. starting from an openCarp file)

* Click here to find out how to export CARTO and RHYTHMIA data to your computer

** RHYTHMIA is also supported but for privacy reasons we are unable to provide an example


Please check the data table to see which input files correspond to which cycle length and time interval. After setting the cycle length, DGM will automatically use the correct time interval.

  • Download and unpack the above example files
  • Start the application
  • Click Select File and select one of the main files from the examples
  • Set the correct cycle length as found in the data table below
    If you press enter, the time interval will automatically be set and a first visualization is made
  • Hit calculate to start calculating loops and focal sources
    When done you can play around with different templates or try more specific renderings in the advanced layout
    Below you will find some images made with DGM from these example input files

A. simulation regular reentry

B. simulation regular focal

C. simulation irregular reentry / H. openCarp 2D

D. simulation irregular focal

E. CARTO regular reentry

F. CARTO regular focal

G. openCarp 3D simulation

Data table

For irregular data, a cycle length of -1 should be set

Main fileCycle lengthTime interval
A. Regular reentry 3DLAT_p2000.txt2130, 213
B. Regular focal 2DLAT_p529.txt5000, 500
C. Irregular reentry 2DLAT_p900.txt-1290, 2860
D. Irregular focal 3DLAT_p2000.txt-1122, 1806
Clinical *
E. Regular reentry CARTODGM_260ms_car.txt2600, 260
F. Regular focal CARTODGM_290ms_car.txt2900, 290
openCarp simulation
G. openCarp 3D irregular reentryvm.igb-1610, 5490
H. openCarp 2D irregular reentryvm.igb-1290, 2860

How to export clinical cases

Currently a parser is present to automatically convert both CARTO (_car.txt) and RHYTHMIA (.mat) files to the correct DGM input LAT_p{nodes}.txt file. We plan to add support for the Ensite mapping system in the future as well.


DGM has been tested with CARTO version V7.1.80.33

Load Study and export Study data

  • Go to start screen of CARTO
  • Click Review Study and select the Study from the case you want to export
  • Now you can make movies and gures which will be also exported to your external hard drive
  • Click Study (top left) > Export Study Data
  • Make sure 'Base' and 'CARTO VISITAG Module' is ticked on
  • Now a pop up appears: 'Create File in progress'. This may take a while depending on how many points the study contains
  • When this pop up disappears, you exit the study by clicking Study > Exit

Export Study data to external hard drive

  • Go to start screen of CARTO
  • Go to System > Export Data ...
  • Go to the case and select the 'Export Study....zip' and put it in the queue
  • Enter a password and confi rm it (top right)
  • Select the the folder in which you want to save the export data on your external hard drive and click export
  • Now the export is saved on your external hard drive

Decompress export

Finally we need to decompress the files on our own computer. Popular tools to do so are 7zip and winrar. After decrompressing to your preferred folder, you will see a lot of files appear. The ones needed for DGM are the files ending with .mesh and _car.txt.

If present, Ablation file is typically found under VisiTagExport/Sites.txt and PPI in an xml file named Study ....

You are now ready to analyze your own CARTO data with DGM! See examples 5 and 6 for more info.


To export your RHYTHMIA case you need to select Export as > MATLAB - Map Data Basic which is available for systems running SW 3 (Lumipoint), SW 4 (Autotag) and later.