Compilation error

[fabienbaldacci]

I get many compilation errors.

• Line3D doesn't compile, but I guess it's just for comparison purpose so I can avoid it
• I get a compilation error (my version of eigen is 3.3.4):

/home/fab/Prog/semidense-lines/src/Optimizer.cc:1255:1: required from here
/usr/include/eigen3/Eigen/src/Core/AssignEvaluator.h:834:3: error: static assertion failed: YOU_MIXED_DIFFERENT_NUMERIC_TYPES__YOU_NEED_TO_USE_THE_CAST_METHOD_OF_MATRIXBASE_TO_CAST_NUMERIC_TYPES_EXPLICITLY
EIGEN_CHECK_BINARY_COMPATIBILIY(Func,typename ActualDstTypeCleaned::Scalar,typename Src::Scalar);

[Shida He]

It seems this error happens to ORB-SLAM2 as well.
Maybe you can try these two possible solutions:
raulmur/ORB_SLAM2#68 (comment)
raulmur/ORB_SLAM2#202 (comment)

[fabienbaldacci]

Thanks for the reply. I get it to compile after fixing Line3D too (because a .so is required to build yours).
Now I get a segmentation fault while running the first example :
./Examples/Monocular/mono_euroc Vocabulary/ORBvoc.bin Examples/Monocular/EuRoC.yaml Data/mav0/cam0/data Examples/Monocular/EuRoC_TimeStamps/MH01.txt

Camera Parameters:

• fx: 458.654
• fy: 457.296
• cx: 367.215
• cy: 248.375
• k1: -0.283408
• k2: 0.0739591
• p1: 0.00019359
• p2: 1.76187e-05
• fps: 20
• color order: RGB (ignored if grayscale)

ORB Extractor Parameters:

• Number of Features: 1000
• Scale Levels: 8
• Scale Factor: 1.2
• Initial Fast Threshold: 20
• Minimum Fast Threshold: 7
  Offline semi-dense mapping and line segment extraction
  updating model
  Erreur de segmentation (core dumped)

[Shida He]

Could you check your input data path? The directory structure is different for Vicon Room sequences and Machine Hall sequences in EuRoC dataset.

[fabienbaldacci]

Unfortunately my path is right. I also can get the segmentation fault a little bit later :

ORB Extractor Parameters:

• Number of Features: 1000
• Scale Levels: 8
• Scale Factor: 1.2
• Initial Fast Threshold: 20
• Minimum Fast Threshold: 7
  Offline semi-dense mapping and line segment extraction
  updating model

---

Start processing sequence ...
Images in the sequence: 3682

Erreur de segmentation (core dumped)

[poiwu]

I face the same problem...

[xinzhichao]

Unfortunately my path is right. I also can get the segmentation fault a little bit later :

ORB Extractor Parameters:

* Number of Features: 1000

* Scale Levels: 8

* Scale Factor: 1.2

* Initial Fast Threshold: 20

* Minimum Fast Threshold: 7
  Offline semi-dense mapping and line segment extraction
  updating model

Start processing sequence ... Images in the sequence: 3682

Erreur de segmentation (core dumped)

i get the same problem, could you tell me how do you solve it?

[...]

Unfortunately my path is right. I also can get the segmentation fault a little bit later :
ORB Extractor Parameters:

* Number of Features: 1000

* Scale Levels: 8

* Scale Factor: 1.2

* Initial Fast Threshold: 20

* Minimum Fast Threshold: 7
  Offline semi-dense mapping and line segment extraction
  updating model

Start processing sequence ... Images in the sequence: 3682
Erreur de segmentation (core dumped)

i get the same problem, could you tell me how do you solve it?

do you solve it?