Computes generic scalar surfel data comparisons (squared error) (given from an input data file and from a reference one).

Usage: 3dCompSurfelData [input] [reference]

Allowed options are:

-h [ --help ]                    display this message
-i [ --input ] arg               input file: sdp (sequence of discrete 
                                 points with attribute)
-r [ --reference ] arg           input reference file: sdp (sequence of 
                                 discrete points with attribute)
-l [ --compAccordingLabels ]     apply the comparisons only on points with 
                                 same labels (by default fifth colomn)
-a [ --drawSurfelAssociations ]  Draw the surfel association.
-o [ --fileMeasureOutput ] arg   specify the output file to store (append) 
                                 the error stats else the result is given to 
                                 std output. 
-n [ --noWindows ]               Don't display Viewer windows.
-d [ --doSnapShotAndExit ] arg   save display snapshot into file. Notes that 
                                 the camera setting is set by default 
                                 according the last saved configuration (use 
                                 SHIFT+Key_M to save current camera setting 
                                 in the Viewer3D).
--fixMaxColorValue arg           fix the maximal color value for the scale 
                                 error display (else the scale is set from 
                                 the maximal value)
--labelIndex arg                 set the index of the label (by default set 
                                 to 4)  
--SDPindex arg                   specify the sdp index (by default 0,1,2,3).

Example:

To use this tools we need first to have two differents surfel set with an attribute to be compared. We can use for instance the curvature from the sample file of DGtal/examples/samples/cat10.vol:

# generating another input vol file using tutorial example (eroded.vol):
$ $DGtal/build/examples/tutorial-examples/FMMErosion
# Estimate curvature using other DGtalTools program:
$ 3dCurvatureViewer -i $DGtal/examples/samples/cat10.vol -r 3 --exportOnly -d curvatureCat10R3.dat
$ 3dCurvatureViewer -i eroded.vol -r 3 --exportOnly -d curvatureCat10ErodedR3.dat

Now we compare the different curvature values from the two shapes:

./visualisation/3dCompSurfelData -i curvatureCat10ErodedR3.dat -r curvatureCat10R3.dat --fixMaxColorValue 1.0 -o statMeasures.dat

You should obtain such a visualisation:

resulting visualisation of curvature comparison.

See also: 3dCompSurfelData.cpp 3dCurvatureViewer