CSOBoolOp

MLModule

genre	CSOModificator
author	Grzegorz Chlebus
package	FMEstable/ReleaseMeVis
dll	MLCSOBoolOp
definition	MLCSOBoolOp.def
keywords	cso, bool, union, difference, intersection

Purpose

Perform boolean operations on input CSOList.

Details

All CSOs from inCSOList0 and inCSOList1 should be closed, in-plane, not self-intersecting and parallel to each other.

CSOs within one CSOList are treated as if they belonged to one structure, i.e. inner CSOs are treated as holes.

Windows

Default Panel

Parameter Fields

Field Index

[]: Trigger	inSkipSelfIntersectionTest: Bool	Unprocessed CSO IDs: String
Add output CSOs to CSOGroup: Bool	Min area factor: Double	Update: Trigger
Allowed plane distance: Double	On Input Change Behavior: Enum
Angle epsilon: Double	Operation: Enum
Clear: Trigger	PathPoint color: Color
CSOGroup label: String	Skip CSOs on error: Bool
doNotClearOnFailedUpdate: Bool	Status Code: Enum
Has Valid Output: Bool	Status Message: String

Visible Fields

Update

name: update, type: Trigger

Initiates update of all output field values.

Clear

name: clear, type: Trigger

Clears all output field values to a clean initial state.

On Input Change Behavior

name: onInputChangeBehavior, type: Enum, default: Clear, deprecated name: shouldAutoUpdate,shouldUpdateAutomatically

Declares how the module should react if a value of an input field changes.

Values:

Title	Name	Deprecated Name
Update	Update	TRUE
Clear	Clear	FALSE

Status Code

name: statusCode, type: Enum, persistent: no

Reflects module’s status (successful or failed computations) as one of some predefined enumeration values.

Values:

Title	Name
Ok	Ok
Invalid input object	Invalid input object
Invalid input parameter	Invalid input parameter
Internal error	Internal error

Status Message

name: statusMessage, type: String, persistent: no

Gives additional, detailed information about status code as human-readable message.

Has Valid Output

name: hasValidOutput, type: Bool, persistent: no

Indicates validity of output field values (success of computation).

[]

name: updateDone, type: Trigger, persistent: no

Notifies that an update was performed (Check status interface fields to identify success or failure).

Angle epsilon

name: inAngleEpsilon, type: Double, default: 0.001, minimum: 0, maximum: 1, deprecated name: inEpsilon

Epsilon used to test whether CSOs are in same plane. The test whether cso0 and cso1 are in same plane is as follows:

1. if cso0 or cso1 is not planar, return false
2. n0 <- normal vector of cso0, n1 <- normal vector of cso1
3. if abs(n0 dot n1) <= 1 - epsilon, return false
4. p0 <- first seed point of cso0, p1 <- first seed point of cso1
5. if abs((p0 - p1) dot n0) >= epsilon, return false
6. return true

Allowed plane distance

name: inMinPlaneDistanceInMM, type: Double, default: 0.0001, minimum: 0

Plane distance used to test wheter CSOs are in same plane.

Min area factor

name: inMinAreaFactor, type: Double, default: 0, minimum: 0, maximum: 1

Factor in range of [0, 1] used for postprocessing of bool op results on each plane. All resulting CSOs on a given plane having area smaller than A*minAreaFactor, where A is the total area of all input CSOs on the given plane, are removed.

Operation

name: inOperation, type: Enum, default: UNION

Select boolean operation to be performed on input CSOLists.

Values:

Title	Name	Description
Diff	DIFF	inCSOList0 \ inCSOList1
Union	UNION	inCSOList0 || inCSOList1
Intersection	INTERSECTION	inCSOList0 && inCSOList1
Sym Difference	SYM_DIFFERENCE	inCSOList0 xor inCSOList1

PathPoint color

name: inPathPointColor, type: Color, default: 0.8 0.4 0

Choose color of output CSOs’ path points.

Add output CSOs to CSOGroup

name: inAddOutputToCSOGroup, type: Bool, default: TRUE

Add output CSOs to a CSOGroup.

CSOGroup label

name: inOutCSOGroupLabel, type: String

Set the label of the output CSOGroup.

Skip CSOs on error

name: inSkipCSOsOnError, type: Bool, default: FALSE

When enabled, then CSOs causing errors won’t be processed.

Unprocessed CSO IDs

name: outUnprocessedCSOIDs, type: String, persistent: no

Unprocessed CSO IDs in the following format: (1,2,3:1)(4:2), meaning that CSOs with ID 1, 2 and 3 from the inCSOList0 couldn’t be processed together with CSO with ID 1 from the inCSOList1 and CSO with ID 4 from inCSOList0 couldn’t be processed with CSO with ID 2 from inCSOList1.

Hidden Fields

doNotClearOnFailedUpdate

name: doNotClearOnFailedUpdate, type: Bool, persistent: no

Prevents automated clear after update failed. This does not affect status fields. It enables the developer to analyze module’s state after failure.

inSkipSelfIntersectionTest

name: inSkipSelfIntersectionTest, type: Bool, default: FALSE