Can i get the Constraint Data?

[JadeKim042386]

First, I specified constrain in AutoCAD and saved it as a dxf file. (I drew a triangle simply for the test)

but i don'k now how to get constraint data. Can i get the constraint data? How?

I have read related docs but i didn't found.

I also checked code and value using lldxf.tragger.ascii_tags_loader but target entity handle is not visible. For example is below.

0 ACDBASSOC2DCONSTRAINTGROUP
5 2F8
330 2F5
100 AcDbAssocAction
90         1
90         0
330 2F5
360 0
90         1
90         3
90         0
90         2
70      0
10 0.0
20 0.0
30 0.0
10 1.0
20 0.0
30 0.0
10 0.0
20 1.0
30 0.0
360 0
90         3
360 2F9
360 2FA
360 2FB
90        23
90        21
1 AcPointCurveConstraint
330 2F8
90         8
70      0
90         2
90         7
90         6
90         0
290      1
290      1
1 AcPointCoincidenceConstraint
330 2F8
90        16
70      0
90         2
90         4
90         9
90         0
290      0
290      1
1 AcConstrainedBoundedLine
330 2F8
90         1
70      1
90         3
90         3
90         5
90        22
330 2F9
90         0
10 0.0
20 0.0
30 0.0
10 1.0
20 0.0
30 0.0
290      0
10 0.0
20 0.0
30 0.0
11 20.0
21 0.0
31 0.0
1 AcConstrainedImplicitPoint
330 2F8
90         9
70      1
90         2
90        10
90        16
330 0
90         0
280      1
90        -1
90         6
1 AcPointCoincidenceConstraint
330 2F8
90        17
70      0
90         2
90         7
90        14
90         0
290      0
290      1
1 AcConstrainedImplicitPoint
330 2F8
90         2
70      1
90         2
90         3
90        18
330 0
90         0
280      0
90        -1
90         1
1 AcPointCurveConstraint
330 2F8
90        10
70      0
90         2
90         9
90         6
90         0
290      1
290      1
1 AcPointCoincidenceConstraint
330 2F8
90        18
70      0
90         2
90         2
90        12
90         0
290      0
290      1
1 AcPointCurveConstraint
330 2F8
90         3
70      0
90         2
90         2
90         1
90         0
290      1
290      1
1 AcConstrainedBoundedLine
330 2F8
90        11
70      1
90         3
90        13
90        15
90        19
330 2FB
90         0
10 0.0
20 0.0
30 0.0
10 0.7071067811865476
20 0.7071067811865476
30 0.0
290      0
10 0.0
20 0.0
30 0.0
11 10.0
21 10.0
31 0.0
1 AcPerpendicularConstraint
330 2F8
90        19
70      0
90         2
90        11
90         6
90         0
290      0
290      1
1 AcConstrainedImplicitPoint
330 2F8
90         4
70      1
90         2
90         5
90        16
330 0
90         0
280      1
90        -1
90         1
1 AcConstrainedImplicitPoint
330 2F8
90        12
70      1
90         2
90        13
90        18
330 0
90         0
280      0
90        -1
90        11
1 AcConstrainedDatumLine
330 2F8
90        20
70      0
90         0
330 0
90         0
10 0.0
20 0.0
30 0.0
10 1.0
20 0.0
30 0.0
1 AcPointCurveConstraint
330 2F8
90         5
70      0
90         2
90         4
90         1
90         0
290      1
290      1
1 AcPointCurveConstraint
330 2F8
90        13
70      0
90         2
90        12
90        11
90         0
290      1
290      1
1 AcConstrainedBoundedLine
330 2F8
90         6
70      1
90         3
90         8
90        10
90        19
330 2FA
90         0
10 10.0
20 10.0
30 0.0
10 0.7071067811865479
20 -0.7071067811865479
30 0.0
290      0
10 10.0
20 10.0
30 0.0
11 20.0
21 0.0
31 0.0
1 AcConstrainedImplicitPoint
330 2F8
90        14
70      1
90         2
90        15
90        17
330 0
90         0
280      1
90        -1
90        11
1 AcHorizontalConstraint
330 2F8
90        22
70      0
90         1
90         1
90         0
290      0
290      1
90        20
1 AcConstrainedImplicitPoint
330 2F8
90         7
70      1
90         2
90         8
90        17
330 0
90         0
280      0
90        -1
90         6
1 AcPointCurveConstraint
330 2F8
90        15
70      0
90         2
90        14
90        11
90         0
290      1
290      1