SelectionManager

class Selection.SelectionManager()

This class provides the main interface into the selection functionality of the viewer. The class manages a list of selection items that are optionally highlighted as the user selects objects in the scene.

Methods

Methods

add

SelectionManager.add(itemOrItems, suppressCallback)
Arguments

  • itemOrItems (null | NodeSelectionItem | [NodeSelectionItem]()) – A selectionItem or selectionItem array that will be added to the current selection set.

  • suppressCallback (boolean()) – Optional boolean param to suppress the selectionArray callbacks calls to this generate.

Manually adds an item or array of items to the selection set. Triggers a selection event.

Return type

void

advanceIncrementalSelection

SelectionManager.advanceIncrementalSelection(handle, predicate)
Arguments

  • handle (IncrementalSelectionId()) – The handle to an active area selection context.

  • predicate (null | function()) – An optional function that returns true if a given [[NodeSelectionItem]] should be added to the selection set. If false is returned, the item will not be added.

Adds the next batch of instances selected by the supplied selection context to the selection set.

Returns

true if there are possibly more items to select and false if not.

Return type

Promise <boolean>

SelectionManager.predicate(item)
Arguments
Return type

Promise <boolean>

beginConvexPolyhedronSelection

SelectionManager.beginConvexPolyhedronSelection(volumePlanes, heuristicOrigin, config)
Arguments

  • volumePlanes ([Plane]()) – The planes used to define volume. A point p is inside the volume if and only if (plane.determineSide(p) == true) for all supplied planes.

  • heuristicOrigin (Point3()) – A point used to compute distances against for ordering returned results. This is typically (but not necessarily) the center of the volume.

  • config (IncrementalPickConfig()) – The configuration object used for this selection operation.

Creates a new and active selection context for the provided selection volume. The selection volume is a convex polyhedron defined by the bounded intersection of its half-spaces.

Returns

The handle for the selection context.

Return type

Promise <IncrementalSelectionId>

beginRayDrillSelection

SelectionManager.beginRayDrillSelection(rayCssOrigin, rayCssBoxRadius, config, view)
Arguments

  • rayCssOrigin (Point2()) – The coordinate in css pixel space for the selection ray’s origin.

  • rayCssBoxRadius (number()) – The radius around the ray in css pixel space used for line and point selection proximity.

  • config (IncrementalPickConfig()) – The configuration object used for this selection operation.

  • view (View()) – The view to use when projecting the point into the scene.

Creates a new and active selection context for the provided selection ray. The ray is created at the supplied ray origin and is cast into the scene. Faces are selected if they lie along the ray. Lines and points are selected if they lie within the ray’s box radius.

Note: Somewhat confusingly ray drill selection is actually a selection by volume. The provided ray origin and radius are used to create a frustum to preform the selection. This has some consequences. For example, the ``SelectionResult``s returned by advancing a ray drill selection will not have selection positions, since they were not selected at a single point.

Returns

The handle for the selection context.

Return type

Promise <IncrementalSelectionId>

beginScreenSelectByArea

SelectionManager.beginScreenSelectByArea(areaCssMin, areaCssMax, config, view)
Arguments

  • areaCssMin (Point2()) – The minimum coordinate in css pixel space for the selection window.

  • areaCssMax (Point2()) – The maximum coordinate in css pixel space for the selection window.

  • config (IncrementalPickConfig()) – The configuration object used for this selection operation.

  • view (View()) – The view to use when projecting the point into the scene.

Creates a new and active selection context for the provided selection window.

Returns

The handle for the selection context.

Return type

Promise <IncrementalSelectionId>

beginSphereSelection

SelectionManager.beginSphereSelection(sphereCenter, sphereRadius, config)
Arguments

  • sphereCenter (Point3()) – The center of the selection sphere.

  • sphereRadius (number()) – The radius of the selection sphere.

  • config (IncrementalPickConfig()) – The configuration object used for this selection operation.

Creates a new and active selection context for the provided selection sphere.

Returns

The handle for the selection context.

Return type

Promise <IncrementalSelectionId>

clear

SelectionManager.clear(triggerCallback)
Arguments

  • triggerCallback (boolean()) – triggers a null selection callback when true.

Removes all items from the selection set.

Return type

void

contains

SelectionManager.contains(item)
Arguments
Return type

boolean

containsParent

SelectionManager.containsParent(item)
Arguments

Checks if the parent of a selection item is in the selection set.

Returns

parent selection item, or null if not found

Return type

null | NodeSelectionItem

each

SelectionManager.each(func)
Arguments

  • func (function()) – a function to be called for every selection item.

Iterates over all selection items. The function passed in will be called once for every selection item and will receive the item as its parameter.

Return type

void

SelectionManager.func(s)
Arguments
Return type

void

endIncrementalSelection

SelectionManager.endIncrementalSelection(handle)
Arguments

Deactivates and destroys the provided selection context.

Return type

Promise <void>

exportSelectionData

SelectionManager.exportSelectionData()

Exports selection objects so that they may be loaded back into the the system at a later time using loadSelectionData.

Returns

exported selection data.

Return type

[object]

getFirst

SelectionManager.getFirst()

Gets the least recent selection item.

Returns

the least recently selected item (if any).

Return type

null | NodeSelectionItem

getHighlightFaceElementSelection

SelectionManager.getHighlightFaceElementSelection()

Gets whether face elements will be highlighted on selection.

Returns

boolean the current value for face element selection highlighting.

Return type

boolean

getHighlightLineElementSelection

SelectionManager.getHighlightLineElementSelection()

Gets whether line elements will be highlighted on selection.

Returns

boolean the current value for line element selection highlighting.

Return type

boolean

getHighlightNodeSelection

SelectionManager.getHighlightNodeSelection()

Gets whether nodes will be highlighted on selection.

Returns

the current value for node selection highlighting.

Return type

boolean

getHighlightPointElementSelection

SelectionManager.getHighlightPointElementSelection()

Gets whether point elements will be highlighted on selection.

Returns

boolean the current value for point element selection highlighting.

Return type

boolean

getIgnoreEntityWhenTogglingChildSelection

SelectionManager.getIgnoreEntityWhenTogglingChildSelection()

Gets whether ignore entity when toggling child selection mode is enabled. See also: [[setIgnoreEntityWhenTogglingChildSelection]]

Return type

boolean

getLast

SelectionManager.getLast()

Gets the most recent selection item.

Returns

the most recently selected item (if any).

Return type

null | NodeSelectionItem

getNodeElementSelectionColor

SelectionManager.getNodeElementSelectionColor()

Gets the color to use for face and line selection.

Returns

the color used for face and line selection.

Return type

Color

getNodeElementSelectionHighlightMode

SelectionManager.getNodeElementSelectionHighlightMode()
Return type

SelectionHighlightMode

getNodeElementSelectionOutlineColor

SelectionManager.getNodeElementSelectionOutlineColor()

Gets the color to use for outlining face and line selection.

Returns

color the color used for outlining face and line selection.

Return type

Color

getNodeSelectionColor

SelectionManager.getNodeSelectionColor()

Gets the color to be used when selecting nodes.

Returns

the color that is applied to a selected node.

Return type

Color

getNodeSelectionHighlightMode

SelectionManager.getNodeSelectionHighlightMode()

Gets the highlighting mode for selected nodes.

Returns

the current

Return type

SelectionHighlightMode

getNodeSelectionOutlineColor

SelectionManager.getNodeSelectionOutlineColor()

Gets the color to be used for outlining the node selection.

Returns

the color for node selection outline.

Return type

Color

getPickTolerance

SelectionManager.getPickTolerance()

Gets the pick tolerance in pixels for line and point picking.

The default value is 20.

Returns

number Pick tolerance value in pixels

Return type

number

getPruneSelectionDescendants

SelectionManager.getPruneSelectionDescendants()

Gets whether descendant pruning is enabled. See also: [[setPruneSelectionDescendants]]

Return type

boolean

getResult

SelectionManager.getResult(index)
Arguments

  • index (number()) – index of selection item to get

Gets a selection at the specified index. The first selected item will be at index 0.

Returns

the selection result at the given index.

Return type

null | NodeSelectionItem

getResults

SelectionManager.getResults()

Gets all current selection items.

Returns

array of all selection items.

Return type

[NodeSelectionItem]

getSelectParentIfSelected

SelectionManager.getSelectParentIfSelected()

Gets whether automatic parent selection is enabled. See also: [[setSelectParentIfSelected]]

Return type

boolean

getSelectedLayers

SelectionManager.getSelectedLayers()

Gets all selected layers.

Return type

[string]

getSelectedTypes

SelectionManager.getSelectedTypes()

Gets all selected IFC types.

Return type

[string]

getSelectionFilter

SelectionManager.getSelectionFilter()
Returns

[[SelectionFilter]] function or null if none is set.

Return type

null | SelectionFilter

getSingleEntityToggleModeEnabled

SelectionManager.getSingleEntityToggleModeEnabled()

Gets whether single entity toggle mode is enabled. See also: [[setSingleEntityToggleModeEnabled]]

Return type

boolean

getSuppressImplicitRemovalCallback

SelectionManager.getSuppressImplicitRemovalCallback()

Gets whether implicit removal callbacks are being suppressed See also: [[setSuppressImplicitRemovalCallback]]

Return type

boolean

isNodeSelected

SelectionManager.isNodeSelected(nodeId)
Arguments

  • nodeId (number()) – Node to check for

Checks whether a node, or its parents, appear in the selection set or not. Note: for the purposes of this function element selections on a node are considered the same as node selection.

Returns

true if the node or its parents appear in the selection set. false otherwise

Return type

boolean

isSelected

SelectionManager.isSelected(item)
Arguments
Return type

boolean

loadSelectionData

SelectionManager.loadSelectionData(datas)
Arguments

  • datas (string | [object]()) – None

Loads serialized selection items exported using [[exportSelectionData]] back into the [[SelectionManager]]. The current selection will be cleared. A selection event will be triggered for each loaded item. This method should not be called before the [[CallbackMap.modelStructureReady]] callback has been triggered.

Return type

void

remove

SelectionManager.remove(itemOrItems, suppressCallback)
Arguments

  • itemOrItems (NodeSelectionItem | [NodeSelectionItem]()) – A selectionItem or an array of selection items that will be removed from the current selection set.

  • suppressCallback (boolean()) – Optional boolean param to suppress the selectionArray callbacks calls to this generate.

Manually removes an item or an array of items from the selection set. Triggers a selection event.

Return type

void

selectAllFromPoint

SelectionManager.selectAllFromPoint(point, config, selectionMode, view)
Arguments

  • point (Point2()) – The canvas position to select from.

  • config (PickConfig()) – The configuration object used for this picking operation.

  • selectionMode (SelectionMode()) – The mode to use for this selection.

  • view (View()) – The view to use when projecting the point into the scene.

Performs a selection operation from the given position on the canvas. All candidate entities are selected. This method triggers a selection event.

Returns

Promise that resolves when this operation has completed.

Return type

Promise <void>

selectAllFromRay

SelectionManager.selectAllFromRay(ray, config, selectionMode, view)
Arguments

  • ray (Ray()) – The world-space ray to perform the selection with.

  • config (PickConfig()) – The configuration object used for this picking operation.

  • selectionMode (SelectionMode()) – The mode to use for this selection.

  • view (View()) – The view to use when projecting the point into the scene.

Performs a selection operation from the given world-space ray. All candidate entities are selected. This method triggers a selection event.

Returns

Promise that resolves when this operation has completed.

Return type

Promise <void>

selectFromPoint

SelectionManager.selectFromPoint(point, config, selectionMode, view)
Arguments

  • point (Point2()) – The canvas position to select from.

  • config (PickConfig()) – The configuration object used for this picking operation.

  • selectionMode (SelectionMode()) – The mode to use for this selection.

  • view (View()) – The view to use when projecting the point into the scene.

Performs a selection operation from the given position on the canvas. The best candidate entity is selected. This method triggers a selection event.

Returns

Promise that resolves when this operation has completed.

Return type

Promise <void>

selectFromRay

SelectionManager.selectFromRay(ray, config, selectionMode, view)
Arguments

  • ray (Ray()) – The world-space ray to perform the selection with.

  • config (PickConfig()) – The configuration object used for this picking operation.

  • selectionMode (SelectionMode()) – The mode to use for this selection.

  • view (View()) – The view to use when projecting the point into the scene.

Performs a selection operation from the given world-space ray. The best candidate entity is selected. This method triggers a selection event.

Returns

Promise that resolves when this operation has completed.

Return type

Promise <void>

selectLayer

SelectionManager.selectLayer(layerName, selectionMode)
Arguments

  • layerName (string()) – None

  • selectionMode (SelectionMode()) – None

Adds all items in a layer to the selection set.

Return type

void

selectNode

SelectionManager.selectNode(nodeId, selectionMode)
Arguments

  • nodeId (null | number()) – nodeId of the node to select. Pass null to clear the selection.

  • selectionMode (SelectionMode()) – None

Selects a node with the given Id.

Returns

the selection type of this operation.

Return type

SelectionType

selectType

SelectionManager.selectType(genericType, selectionMode)
Arguments

  • genericType (string()) – None

  • selectionMode (SelectionMode()) – None

Adds all items with an IFC type to the selection set.

Return type

void

set

SelectionManager.set(selection)
Arguments

  • selection (null | NodeSelectionItem()) – None

Manually removes all currently selected items (if any) from the selection set and adds the supplied item. Triggers a selection event.

Return type

void

setHighlightFaceElementSelection

SelectionManager.setHighlightFaceElementSelection(highlightFaceElementSelection)
Arguments

  • highlightFaceElementSelection (boolean()) – value indicating whether selected face elements should be highlighted.

Sets whether face elements should be highlighted when a selection occurs. By default the system will automatically highlight face elements associated with a selection item.

Return type

Promise <void>

setHighlightLineElementSelection

SelectionManager.setHighlightLineElementSelection(highlightLineElementSelection)
Arguments

  • highlightLineElementSelection (boolean()) – value indicating whether selected line elements should be highlighted.

Sets whether line elements should be highlighted when a selection occurs. By default the system will automatically highlight line elements associated with a selection item.

Return type

Promise <void>

setHighlightNodeSelection

SelectionManager.setHighlightNodeSelection(highlightSelection)
Arguments

  • highlightSelection (boolean()) – None

Sets whether nodes should be highlighted when a selection occurs. By default, the system will automatically highlight the node associated with a selection item.

Return type

Promise <void>

setHighlightPointElementSelection

SelectionManager.setHighlightPointElementSelection(highlightPointElementSelection)
Arguments

  • highlightPointElementSelection (boolean()) – value indicating whether selected point elements should be highlighted.

Sets whether point elements should be highlighted when a selection occurs. By default the system will automatically highlight point elements associated with a selection item.

Return type

Promise <void>

setIgnoreEntityWhenTogglingChildSelection

SelectionManager.setIgnoreEntityWhenTogglingChildSelection(strictMode)
Arguments

  • strictMode (boolean()) – None

Enables / disables ignore entity when toggling child selection mode.

When enabled, a [[NodeSelectionItem]] that has a selected ancestor may only be toggled if it does not contain an entity selection. A selection item without an entity selection is usually generated from selecting a node via a model tree control. A selection item containing an entity selection is usually generated as a result of a viewport picking operation.

This behavior is enabled by default. See Also: [[toggle]]

Return type

void

setNodeElementSelectionColor

SelectionManager.setNodeElementSelectionColor(color)
Arguments

  • color (Color()) – the color to apply to selected node elements.

Sets the color to use for node element selection. This method should not be called before the sceneReady callback has been triggered.

Return type

Promise <void>

setNodeElementSelectionHighlightMode

SelectionManager.setNodeElementSelectionHighlightMode(highlightMode)
Arguments

  • highlightMode (SelectionHighlightMode()) – the highlighting mode that will be applied to selected nodes.

Sets the highlighting mode for selected node elements. The default behavior is to highlight the node element and render an overlay outline. This method should not be called before the sceneReady callback has been triggered.

Return type

Promise <void>

setNodeElementSelectionOutlineColor

SelectionManager.setNodeElementSelectionOutlineColor(color)
Arguments

  • color (Color()) – the color used for outlining face and line selection.

Gets the color to use for outlining node element selection. This method should not be called before the sceneReady callback has been triggered.

Return type

Promise <void>

setNodeSelectionColor

SelectionManager.setNodeSelectionColor(color)
Arguments

  • color (Color()) – the color to apply to the selected node.

Sets the color to be used when selecting nodes. This method should not be called before the sceneReady callback has been triggered.

Return type

Promise <void>

setNodeSelectionHighlightMode

SelectionManager.setNodeSelectionHighlightMode(highlightMode)
Arguments

  • highlightMode (SelectionHighlightMode()) – the highlighting mode that will be applied to selected nodes.

Sets the highlighting mode for selected nodes. The default behavior is to highlight the node and render an overlay outline. This method should not be called before the sceneReady callback has been triggered.

Return type

Promise <void>

setNodeSelectionOutlineColor

SelectionManager.setNodeSelectionOutlineColor(color)
Arguments

  • color (Color()) – the color to apply to the node selection outline.

Sets color for the node selection outline. This method should not be called before the sceneReady callback has been triggered.

Return type

Promise <void>

setPickTolerance

SelectionManager.setPickTolerance(tolerance)
Arguments

  • tolerance (number()) – None

Sets the pick tolerance in pixels for line and point picking. If a line or point is within this pixel tolerance of the click point, it will be prioritized over the face at the click position.

The default value is 20.

Return type

void

setPruneSelectionDescendants

SelectionManager.setPruneSelectionDescendants(pruneSelectionDescendants)
Arguments

  • pruneSelectionDescendants (boolean()) – None

Enables / disables descendant pruning and clears the current selection set. When enabled, a parent and child will not be present in the same selection set. This behavior is enabled by default.

Return type

void

setSelectParentIfSelected

SelectionManager.setSelectParentIfSelected(selectParent)
Arguments

  • selectParent (boolean()) – None

Enables / disables automatic parent selection. When enabled, if a selected part is selected again, its parent will be selected. This behavior is enabled by default.

Return type

void

setSelectionFilter

SelectionManager.setSelectionFilter(selectionFilter)
Arguments

  • selectionFilter (null | SelectionFilter()) – function that manipulates the selected NodeId.

This allows manipulating the selected NodeId. To reset the filter, set it to null.

Return type

void

setSingleEntityToggleModeEnabled

SelectionManager.setSingleEntityToggleModeEnabled(enabled)
Arguments

  • enabled (boolean()) – None

Enables / disables single entity toggle mode.

When enabled, limits the selection set to containing only one entity selection for each node id. Toggling with an entity selection that has the same node id as a [[NodeSelectionItem]] already in the selection set will remove that item from the selection set.

This behavior is disabled by default. See Also: [[toggle]]

Return type

void

setSuppressImplicitRemovalCallback

SelectionManager.setSuppressImplicitRemovalCallback(suppress)
Arguments

  • suppress (boolean()) – None

Sets whether to generate selectionArray callbacks with implicitly removed nodes.

For example, consider the case where you have a parent node that has a multiple child nodes. Normally, if the parent begins selected and then a child is removed from the selection set there will be two selectionArray callbacks generated. The first will for the removal of the parent node. The second wil be for the addition of all of it’s children except the one that was initially removed.

When this behavior is enabled only a single selectionArray callback will be generated for the child node that was removed.

This behavior is disabled by default.

Return type

void

size

SelectionManager.size()

Gets the number of selection items.

Returns

the number of selected items.

Return type

number

toggle

SelectionManager.toggle(item)
Arguments

Manually adds or removes an item from the selection set. Triggers a selection event.

Return type

void