IBypass

Returned by BypassApi — the bypass shank: two arms that cross past each other instead of meeting. Multiple gems, so no single mother gem. Adds to IParametricObject:

Member	Meaning
RingSizeLabel / RingSizeRegion	Ring size as label + region
RingDiameterMm	Inner diameter, mm
Shank	The band, arms and bridge — IBypassShank
Gems	The gems row — IBypassGems

Both sections are live views over the shank’s stored parameters: their getters read the current values and every setter regenerates the shank in place (same Guid), gems and prongs included.

Band and arms (IBypassShank)

The band can be driven two ways: by the top/bottom gradient, or — with UseStations on — by a list of stations that each set their own section.

Member	Meaning
ProfileName	RING_PROFILE asset name, "" when unset
UseStations	Build from Stations instead of the top/bottom gradient
SharedProfile	Every station uses the same profile asset
Stations	The per-station sections — IBypassStation each
TopWidth / TopHeight / BottomWidth / BottomHeight	Band sections, mm
ArmAngle	degrees
ArmWidth / ArmHeight / ArmTangent / CapDistance	The arms, mm
TipRotation	Roll of the tip about the rail tangent, degrees (signed)
Displacement	How far the arms pass each other, mm
DisplacementStart	Rail point where the displacement starts
BridgeEnabled / BridgeAngle / BridgeWidth / BridgeThickness / BridgeDiameter	The bridge
SetProfile(assetName)	RING_PROFILE asset by name
SetUseStations / SetSharedProfile
SetStations(stations)	Replace the whole list (at least 2); turns UseStations on
SetStation(index, position, width, height, profileName=None)	Edit one station in place
SetTopWidth / SetTopHeight / SetBottomWidth / SetBottomHeight	mm
SetArmAngle / SetArmWidth / SetArmHeight / SetArmTangent / SetCapDistance
SetTipRotation / SetDisplacement / SetDisplacementStart
SetBridgeEnabled / SetBridgeAngle / SetBridgeWidth / SetBridgeThickness / SetBridgeDiameter

A station (IBypassStation)

Member	Meaning
Position	0 = arm tip, 1 = ring bottom
Width / Height	Section at that position, mm
ProfileName	RING_PROFILE asset name, "" when unset

Gems row (IBypassGems)

Member	Meaning
Enabled	Whether the row is built
GemShape / GemSize	The stone template
Angle	Arc covered by the row from each tip, degrees
MinDistance / Margin / InnerMargin / Vertical / GemInside	Placement, mm
InnerWidth / InnerHeight / BrightCut	Inner channel, mm
Gradient / GradientPoints / GradientMiddlePosition	Stone-size gradient along the row
GemSizeStart / GemSizeMiddle / GemSizeEnd	Gradient sizes, mm
ProngType / ProngHeight	"NONE", "SHARED" or "SCALLOPED"
AutomaticProngDiameter / ProngDiameter / ProngGrow / ProngMinDiameter	Prong sizing, mm
EndProngCount / ProngSpacing / ProngDistance	Prong layout
DrillEnabled / DrillType / DrillWidth / DrillHeight / DrillVisible / DrillAllowIntersection	Drills
ExtensionForManufacturing	mm
DoubleProngSetting / ScallopRemoveChannel	Scalloped-setting switches
ScallopGemWidth … ScallopProngHeight	Scalloped proportions (percentages, not mm)
SetEnabled, SetGemShape, SetGemSize, SetAngle	The row itself
SetMinDistance, SetMargin, SetInnerMargin, SetVertical, SetGemInside	Placement
SetInnerWidth, SetInnerHeight, SetBrightCut	Channel
SetGradient, SetGradientPoints, SetGradientMiddlePosition, SetGemSizeGradient(start, middle, end)	The gradient
SetProngType, SetProngHeight, SetAutomaticProngDiameter, SetProngDiameter, SetProngGrow, SetProngMinDiameter, SetEndProngCount, SetProngSpacing, SetProngDistance	Prongs
SetDrillEnabled, SetDrillType, SetDrillWidth, SetDrillHeight, SetDrillVisible, SetDrillAllowIntersection	Drills
SetExtensionForManufacturing, SetDoubleProngSetting, SetScallopRemoveChannel
SetScallopGem(w, h) / SetScallopRail(w, h) / SetScallopProng(w, h)	Scalloped proportions

String parameters are case-insensitive and tolerate dashes/spaces; an unknown value raises a clear error listing the valid ones.