Sample Code
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PilotGaea 2D O'view
PilotGaea 2D O'view
ol
extent
isEmpty
Function isEmpty
is
Empty
(
extent
)
:
boolean
Determine if an extent is empty.
Parameters
extent
:
Extent
Extent.
Returns
boolean
Is empty.
Api
stable
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PilotGaea 2D O'view
MapView
CMapView
CONTROL_TYPE
QUERY_TYPE
MapViewMeasureProperty
MapViewEventMap
MapViewSelectFeatureOn
SnapSetting
MapDocument
CMapDocument
ENUM_IMAGE_FORMAT
2D圖層
CLayer2D
CSingleTileLayer
CTileMapLayer
CVectorLayer
CVectorTileLayer
CWMSLayer
ENTITY_TYPE
LAYER_TYPE_2D
UNIT
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Determine if an extent is empty.