[SUBROUTINE]
icon = circle.png
name = Helix by Center
image = circle.png
type = Helix
help = <b>Creates a helix around a center</b>
order = act pv h1 cx al_x cy al_y h3 opt dir rot s u_s dpt u_dpt h4 maj_d min_d pitch starts h5 teeth lead_clearance cut_depth

[PARAM_ACT]
name = Active
type = bool
value = 1

[PARAM_PV]
name = Show design
type = bool
value = 1

[PARAM_H1]
name = Coords, size
type = sub-header

[PARAM_CX]
name = cX
type = float
icon = center.png
tool_tip = Center of helix
value = 0.0
metric_value = 0.0
header = h1

[PARAM_AL_X]
name = X axis align
type = combo
options = Left=0:Center=1:Right=2
header = h1
value = 1
tool_tip = Define X reference point

[PARAM_CY]
name = cY
type = float
icon = center.png
tool_tip = Center of helix
value = 0.0
metric_value = 0.0
header = h1

[PARAM_AL_Y]
name = Y axis align
type = combo
options = Top=0:Center=1:Bottom=2
header = h1
value = 1
tool_tip = Define Y reference point

[PARAM_H3]
name = Milling
type = sub-header

[PARAM_OPT]
name = Option
type = combo
options = Internal=2:External=3
icon = g4x.png
tool_tip = Select Helix Side
value = 2
header = h3

[PARAM_DIR]
name = Direction
type = combo
options = Clockwise (RH)=3:Counter-Clockwise (LH)=2
icon = cw-ccw.png
tool_tip = Direction of path
value = 3
header = h3

[PARAM_ROT]
name = Rotation
type = float
digits = 2
icon = angle.png
tool_tip = Rotation of start location
value = 0.0
header = h3
suffix = °

[PARAM_S]
name = Helix Top
type = combo-user
options = User defined=0:Surface=1:Half=2:One quarter=3:Three quarter=4
icon = surface.png
tool_tip = Pre or user defined
value = 1
header = h3
links = u_s=0

[PARAM_U_S]
name = User Top
type = float
value = 0.0
metric_value = 0.0
header = h3
hidden = 1

[PARAM_DPT]
name = Helix Bottom
type = combo-user
options = User defined=0:Through=1:Bottom=2:Half=3:One quarter=4:Three quarter=5
icon = depth.png
tool_tip = Pre or user defined
value = 1
header = h3
links = u_dpt=0

[PARAM_U_DPT]
name = User Bottom
type = float
value = 0.5
metric_value = 12.0
header = h3
hidden = 1

[PARAM_H4]
name = Helix
type = sub-header

[PARAM_MAJ_D]
name = Major Diameter
type = float
minimum_value = 0.0
icon = diameter.png
tool_tip = Major Diameter
value = 1.5
header = h1
metric_value = 20
no_zero = 1

[PARAM_MIN_D]
name = Minor Diameter
type = float
minimum_value = 0.0
icon = diameter.png
tool_tip = Minor Diameter
value = 1.5
header = h1
metric_value = 17.5
no_zero = 1

[PARAM_PITCH]
name = Pitch
type = float
minimum_value = 0.0
tool_tip = Helix Pitch
value = 0.2
header = h4
metric_value = 2
no_zero = 1

[PARAM_STARTS]
name = Starts
type = int
minimum_value = 1
tool_tip = Number of Helix Starts
value = 1
header = h4
metric_value = 1
no_zero = 1

[PARAM_H5]
name = Cutter
type = sub-header

[PARAM_CUT_DEPTH]
name = Cutter Engagement
type = float
minimum_value = 0.1
tool_tip = Depth of cutter engagment (In units) per pass
value = 0.2
header = h5
metric_value = 0.5
no_zero = 1

[PARAM_CUT_TEETH]
name = Cutter Teeth
type = int
minimum_value = 1
tool_tip = Number of Cutting Teeth
value = 1
header = h5
metric_value = 1
no_zero = 1

[PARAM_LEAD_CLEARANCE]
name = Lead-in Clearance
type = float
tool_tip = Distance from face (In units) before engaging cutter
value = 0.010
header = h5
metric_value = 0.25
no_zero = 1


[DEFINITIONS]
content =
;	<eval>self.include_once(file name here)</eval>

[CALL]
content =
	(begin helix from center)
	(author : Fernand Veilleux)
	o<#self_id_active> if [#param_act] (if enabled)
		o<select> CALL [31] [#param_s] [#param_u_s] [#<surface>] [#<surface> - #<wp_depth> / 2] [#<surface> - #<wp_depth> / 4] [#<bottom> + #<wp_depth> / 4]
		o<select> CALL [32] [#param_dpt] [#param_u_dpt] [#<bottom_through>] [#<bottom>] [#<surface> - #<wp_depth> / 2] [#<surface> - #<wp_depth> / 4] [#<bottom> + #<wp_depth> / 4]
		
		o<select> CALL [33] [#param_al_x] [#param_maj_d * #<_units_radius> / 2] [0] [-#param_maj_d * #<_units_radius> / 2]
		o<select> CALL [34] [#param_al_y] [-#param_maj_d * #<_units_radius> / 2] [0] [#param_maj_d * #<_units_radius> / 2]
		
		o<helical> CALL [#param_cx + #33] [#param_cy + #34] [#param_maj_d * #<_units_radius>] [#param_min_d * #<_units_radius>] [#param_pitch] [#param_starts] [#param_cut_teeth] [#param_cut_depth] [#param_rot] [#param_opt] [#param_dir] [#31] [#32] [#param_lead_clearance] [#param_pv] [1]
	o<#self_id_active> endif