Constructor
new LayerGroup(containerDiv)
| Name | Type | Description |
|---|---|---|
containerDiv | HTMLElement | The associated HTML div. |
- Source
Classes
Methods
addDrawLayer() → {DrawLayer}
Add a draw layer.
The new layer will be marked as the active draw layer.
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The created layer.
- Type:
- DrawLayer
addEventListener(type, callback)
Add an event listener to this class.
| Name | Type | Description |
|---|---|---|
type | string | The event type. |
callback | function | The function associated with the provided event type, will be called with the fired event. |
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addScale(scaleStep, center)
Add scale to the layers. Scale cannot go lower than 0.1.
| Name | Type | Description |
|---|---|---|
scaleStep | number | The scale to add. |
center | Point3D | The scale center Point3D. |
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addTranslation(translation)
Add translation to the layers.
| Name | Type | Description |
|---|---|---|
translation | Scalar3D | The translation as {x,y,z}. |
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addViewLayer() → {ViewLayer}
Add a view layer.
The new layer will be marked as the active view layer.
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The created layer.
- Type:
- ViewLayer
canScroll() → {boolean}
Can one of the view layers be scrolled.
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True if one view layer can be scrolled.
- Type:
- boolean
display(flag)
Display the layer.
| Name | Type | Description |
|---|---|---|
flag | boolean | Whether to display the layer or not. |
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draw()
Draw the layer.
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empty()
Empty the layer list.
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fitToContainer(divToWorldSizeRatio)
Fit to container: set the layers div to world size ratio.
| Name | Type | Description |
|---|---|---|
divToWorldSizeRatio | number | The ratio. |
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flipScaleZ()
Flip all layers along the Z axis without offset compensation.
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getActiveDrawLayer() → {DrawLayer|undefined}
Get the active draw layer.
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The layer.
- Type:
- DrawLayer |
undefined
getActiveLayer() → {ViewLayer|DrawLayer|undefined}
Get the active image layer.
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getActiveViewLayer() → {ViewLayer|undefined}
Get the active image layer.
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The layer.
- Type:
- ViewLayer |
undefined
getAddedScale() → {Scalar3D}
Get the added scale: the scale added to the base scale.
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The scale as {x,y,z}.
- Type:
- Scalar3D
getBaseScale() → {Scalar3D}
Get the base scale.
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The scale as {x,y,z}.
- Type:
- Scalar3D
getBaseViewLayer() → {ViewLayer|undefined}
Get the base view layer.
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The layer.
- Type:
- ViewLayer |
undefined
getDivId() → {string|undefined}
Get the Id of the container div.
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The id of the div.
- Type:
- string |
undefined
getDivToWorldSizeRatio() → {number|undefined}
Calculate the div to world size ratio needed to fit the largest data.
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The ratio.
- Type:
- number |
undefined
getDrawLayerById(id) → {DrawLayer|undefined}
Get a draw layer associated to a data id.
| Name | Type | Description |
|---|---|---|
id | string | The layer id. |
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The layer.
- Type:
- DrawLayer |
undefined
getDrawLayers(callbackFnopt) → {Array.<DrawLayer>}
Get a list of draw layers according to an input callback function.
| Name | Type | Attributes | Description |
|---|---|---|---|
callbackFn | function | <optional> | A function that takes a DrawLayer as input and returns a boolean. If undefined, returns all draw layers. |
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The layers that satisfy the callbackFn.
- Type:
- Array.<DrawLayer>
getDrawLayersByDataId(dataId) → {Array.<DrawLayer>}
Get the draw layers associated to a data id.
| Name | Type | Description |
|---|---|---|
dataId | string | The data id. |
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The layers.
- Type:
- Array.<DrawLayer>
getMaxWorldSize() → {Scalar2D|undefined}
Get the largest data world (mm) size.
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The largest size as {x,y}.
- Type:
- Scalar2D |
undefined
getNumberOfLayers() → {number}
Get the number of layers handled by this class.
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The number of layers.
- Type:
- number
getNumberOfViewLayers() → {number}
Get the number of view layers handled by this class.
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The number of layers.
- Type:
- number
getOffset() → {Scalar3D}
Get the layer offset.
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The offset as {x,y,z}.
- Type:
- Scalar3D
getPositionHelper() → {PositionHelper}
Get the position helper.
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The position helper.
- Type:
- PositionHelper
getScale() → {Scalar3D}
Get the layer scale.
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The scale as {x,y,z}.
- Type:
- Scalar3D
getShowCrosshair() → {boolean}
Get the showCrosshair flag.
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True to display the crosshair.
- Type:
- boolean
getViewDataIndices() → {Array.<string>}
Get the view layers data indices.
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The list of indices.
- Type:
- Array.<string>
getViewLayerById(id) → {ViewLayer|undefined}
Get a view layer associated to a data id.
| Name | Type | Description |
|---|---|---|
id | string | The layer id. |
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The layer.
- Type:
- ViewLayer |
undefined
getViewLayers(callbackFnopt) → {Array.<ViewLayer>}
Get the view layers that satisfy the input callback function.
| Name | Type | Attributes | Description |
|---|---|---|---|
callbackFn | function | <optional> | A function that takes a ViewLayer as input and returns a boolean. If undefined, returns all view layers. |
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The layers that satisfy the callbackFn.
- Type:
- Array.<ViewLayer>
getViewLayersByDataId(dataId) → {Array.<ViewLayer>}
Get the view layers associated to a data id.
| Name | Type | Description |
|---|---|---|
dataId | string | The data id. |
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The layers.
- Type:
- Array.<ViewLayer>
getViewLayersFromActive(callbackFnopt) → {Array.<ViewLayer>}
Get the view layers that satisfy the input callback function starting from the active layer.
| Name | Type | Attributes | Description |
|---|---|---|---|
callbackFn | function | <optional> | A function that takes a ViewLayer as input and returns a boolean. If undefined, returns all view layers. |
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The layers that satisfy the callbackFn.
- Type:
- Array.<ViewLayer>
includes(id) → {boolean}
Check if this layerGroup contains a layer with the input id.
| Name | Type | Description |
|---|---|---|
id | string | The layer id to look for. |
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True if this group contains a layer with the input id.
- Type:
- boolean
isPositionInBounds(position) → {boolean}
Can the input position be set on one of the view layers.
| Name | Type | Description |
|---|---|---|
position | Point | The input position. |
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True if one view layer accepts the input position.
- Type:
- boolean
moreThanOne(dim) → {boolean}
Does one of the view layer have more than one slice in the given dimension.
| Name | Type | Description |
|---|---|---|
dim | number | The input dimension. |
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True if one view layer has more than one slice.
- Type:
- boolean
removeEventListener(type, callback)
Remove an event listener from this class.
| Name | Type | Description |
|---|---|---|
type | string | The event type. |
callback | function | The function associated with the provided event type. |
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removeLayer(layer)
Remove a layer from this layer group. Warning: if current active layer, the index will be set to undefined. Call one of the setActive methods to define the active index.
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removeLayersByDataId(dataId)
Remove all layers for a specific data.
| Name | Type | Description |
|---|---|---|
dataId | string | The data to remove its layers. |
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removeTooltipDiv()
Remove the tooltip html div.
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reset()
Reset the stage to its initial scale and no offset.
- Deprecated
- Since v0.35, prefer resetZoomPan.
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resetViews()
Reset the position and window level of all view layers.
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resetZoomPan()
Reset the zoom and pan of all layers.
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searchViewLayers(meta) → {Array.<ViewLayer>}
Search view layers for equal image meta data.
| Name | Type | Description |
|---|---|---|
meta | object | The meta data to find. |
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The list of view layers that contain matched data.
- Type:
- Array.<ViewLayer>
setActiveLayer(index)
Set the active layer.
| Name | Type | Description |
|---|---|---|
index | number | The index of the layer to set as active. |
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setActiveLayerByDataId(dataId)
Set the active layer with a data id.
| Name | Type | Description |
|---|---|---|
dataId | string | The data id. |
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setActiveLayerById(id)
Set the active layer with a layer id.
| Name | Type | Description |
|---|---|---|
id | string | The layer id. |
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setImageSmoothing(flag)
Set the imageSmoothing flag value.
| Name | Type | Description |
|---|---|---|
flag | boolean | True to enable smoothing. |
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setOffset(newOffset)
Set the layers' offset.
| Name | Type | Description |
|---|---|---|
newOffset | Scalar3D | The offset as {x,y,z}. |
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setScale(newScale, centeropt)
Set the layers' scale.
| Name | Type | Attributes | Description |
|---|---|---|---|
newScale | Scalar3D | The scale to apply as {x,y,z}. | |
center | Point3D | <optional> | The scale center Point3D. |
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setShowCrosshair(flag)
Set the showCrosshair flag.
| Name | Type | Description |
|---|---|---|
flag | boolean | True to display the crosshair. |
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showTooltip(point)
Displays a tooltip in a temporary span. Works with css to hide/show the span only on mouse hover.
| Name | Type | Description |
|---|---|---|
point | Point2D | The update point. |
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someViewLayer(callbackFn) → {boolean}
Test if one of the view layers satisfies an input callbackFn.
| Name | Type | Description |
|---|---|---|
callbackFn | function | A function that takes a ViewLayer as input and returns a boolean. |
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True if one of the ViewLayers satisfies the callbackFn.
- Type:
- boolean
updateLayersToPositionChange(event)
Update layers (but not the event source layer) to a position change.
| Name | Type | Description |
|---|---|---|
event | object | The position change event. |
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Events
activelayerchange
Active layer change event.
- object
| Name | Type | Description |
|---|---|---|
type | string | The event type. |
value | Array | The changed value. |
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offsetchange
Offset change event.
- object
| Name | Type | Description |
|---|---|---|
type | string | The event type. |
value | Array | The changed value. |
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removelayer
Remove layer event.
- object
| Name | Type | Description |
|---|---|---|
type | string | The event type. |
layerid | string | The layer id. |
layergroupid | string | The layer group id. |
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zoomchange
Zoom change event.
- object
| Name | Type | Description |
|---|---|---|
type | string | The event type. |
value | Array | The changed value. |
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