General Description

Scope - Pair-wise Connections

Joint parameters are given in a list following this order:

side-to-side parallel in-plane | side-to-side parallel | side-to-side out-of-plane | top-to-side | cross | top-to-top | side-to-side non-parallel
division length | shift | type |
{ 1000, 0.5, 1, 1000, 0.5, 10 , 1000, 0.5, 20 , 1000, 0.5, 30 , 1000, 0.5, 40 , 1000, 0.5, 50 }

Code implementation:

how to a custom construct joint
- string, name of a joint e.g. “ss_e_ip_0”
- std::vector<CGAL_Polyline> m[2] - 2 plines lists, where 1st list are bottom and 2nd are top plines
- std::vector<CGAL_Polyline> f[2] - 2 plines lists, where 1st list are bottom and 2nd are top plines
- std::vector<char> - list of boolean types for the “m” array, length matches m list length
- std::vector<char> - list of boolean types for the “f” array, length matches f list length
joint class that stores adjacency information
change-basis transformation from unit tile to joint volume defined by two rectangles
assignment of joints based and search categories and connection types
store each parameterized joint inside std::unordered_map<string, joint> that is not remapped yet

Joints in the Joint Library:

Types_0	Types_1-9	Types_10-19	Types_20-29	Types_30-39	Types_40-49	Types_50-59
skip	side-to-side	side-to-side	top-to-side	cross	top-to-top	side-to-side
	in-plane	out-of-plane				rotated
	default ss_e_ip_1	default ss_e_op_1	default ts_e_p_3	default cr_c_ip_0	default	default
	1 - (ss_e_ip_1)	10 - (ss_e_op_1)	20 - (ts_e_p_1)	30 - (cr_c_ip_0)
	2 - (ss_e_ip_0)	11 - (ss_e_op_2)	21 - (ts_e_p_2)	31 - (cr_c_ip_1)
		12 - (ss_e_op_0)	22 - (ts_e_p_3)
			23 - (ts_e_p_0)
	custom 9 ss_e_ip_9	custom 19 ss_e_op_9	custom 29 ts_e_p_9	custom 39 cr_c_ip_9	custom 49 tt_e_p_9	custom 59 ss_e_r_9

Joints have two properties m_boolean_type and f_boolean_type to guide the fabrication process:

Joint: ss_e_op_1 Nejiri Arigata

Joint: ss_e_op_2 Dovetail

Joint: ss_e_ip_0 Dovetail

Joint: tenon mortise ts_e_p_2 (ts_e_p_0 - original) (start and end point of the joint line are skipped)

Joint: Annen joint - ts_e_p_3 (ts_e_p_2 - original)

Joint: cr_c_ip_0 cross

Joint: cr_c_ip_1 conic cross

To-do joints types:

To-do others:

Code Implementation:

Element is specified as a pair of polylines, with planes for each side, in a beam case it is only a central polylines
j_mf property track joints (joint id, male/female, parameter on edge)
mesh boolean: a) reference shapes, b) joints polygon pairs

Merge:

plate geometry can be merged, for beams boolean difference must be performed
Insert face joints inside edge
Insert between multiple edges (open polylines + closed polygons)
Cut projection and insert in polygon (case when side-side joints are rotated e.g. butterfly)
Mesh boolean: a) reference shapes, b) joints polygon pairs