Label Capture Basic Overlay
Defined in framework ScanditLabelCapture
- SDCLabelCaptureBasicOverlay
@interface SDCLabelCaptureBasicOverlay : NSObject <SDCDataCaptureOverlay>
Added in version 6.0.0
Overlay for label capture that displays captured labels and their fields on top of the frames. When labels are successfully recognized, the label background as well as the fields are highlighted. Fields are highlighted using a default brush (capturedFieldBrush, predictedFieldBrush), a brush set through a user-defined SDCLabelCaptureBasicOverlayDelegate or calls to setBrush:forField:ofLabel:.
- + overlayWithLabelCapture:forDataCaptureView:
+ (
instancetype
)overlayWithLabelCapture:(nonnull SDCLabelCapture *)labelCapture forDataCaptureView:(nullable SDCDataCaptureView *)viewAdded in version 6.0.0
Constructs a new overlay to visualize the process of label capture. When view is non-nil, the overlay is automatically added to the view. Otherwise, the overlay needs to be added through a call to SDCDataCaptureView.addOverlay:.
- + overlayWithLabelCapture:
+ (
instancetype
)overlayWithLabelCapture:(nonnull SDCLabelCapture *)labelCaptureAdded in version 6.0.0
Constructs a new overlay to visualize the process of label capture. The overlay needs to be added through a call to SDCDataCaptureView.addOverlay:.
- delegate
@property (nonatomic, weak, nullable)
id
<SDCLabelCaptureBasicOverlayDelegate> delegateAdded in version 6.0.0
- - setBrush:forField:ofLabel:
- (
void
)setBrush:(SDCBrush *)brush forField:(SDCLabelField *)field ofLabel:(SDCCapturedLabel *)labelAdded in version 6.0.0
The method can be called to change the visualization style of a field. This method is thread-safe; it can be called from any thread.
When delegate is set to a non-nil instance, the delegate continues to be asked for the brush to use for this field whenever the state changes, thereby replacing any brushes set by calling setBrush:forField:ofLabel:.
- - setBrush:forLabel:
- (
void
)setBrush:(SDCBrush *)brush forLabel:(SDCCapturedLabel *)labelAdded in version 6.0.0
The method can be called to change the visualization style of a label. This method is thread-safe; it can be called from any thread.
When delegate is set to a non-nil instance, the delegate continues to be asked for the brush to use for this label whenever the state of one its fields changes, thereby replacing any brushes set by calling setBrush:forLabel:.
- defaultPredictedFieldBrush
@property (class, nonatomic, nonnull, readonly) SDCBrush *defaultPredictedFieldBrush
Added in version 6.4.0
The default brush applied to predicted fields. This is the brush used if SDCLabelCaptureBasicOverlayDelegate is not set.
- defaultCapturedFieldBrush
@property (class, nonatomic, nonnull, readonly) SDCBrush *defaultCapturedFieldBrush
Added in version 6.4.0
The default brush applied to captured fields. This is the brush used if SDCLabelCaptureBasicOverlayDelegate is not set.
- defaultLabelBrush
@property (class, nonatomic, nonnull, readonly) SDCBrush *defaultLabelBrush
Added in version 6.4.0
The default brush used for drawing labels. This brush is used when no delegate is set, or the SDCLabelCaptureBasicOverlayDelegate.labelCaptureBasicOverlay:brushForLabel: returns a nil brush.
- predictedFieldBrush
@property (nonatomic, strong, nonnull) SDCBrush *predictedFieldBrush
Added in version 6.4.0
The brush applied to predicted fields if no SDCLabelCaptureBasicOverlayDelegate is set. By default this brush is set to defaultPredictedFieldBrush.
The brush applied to predicted fields if no SDCLabelCaptureBasicOverlayDelegate is set.
- capturedFieldBrush
@property (nonatomic, strong, nonnull) SDCBrush *capturedFieldBrush
Added in version 6.4.0
The brush applied to captured fields if no SDCLabelCaptureBasicOverlayDelegate is set. By default this brush is set to defaultCapturedFieldBrush.
- labelBrush
@property (nonatomic, strong, nonnull) SDCBrush *labelBrush
Added in version 6.4.0
The brush used for drawing labels if no delegate is set, or the SDCLabelCaptureBasicOverlayDelegate.labelCaptureBasicOverlay:brushForLabel: returns a nil brush. By default this brush is set to defaultLabelBrush.
- shouldShowScanAreaGuides
@property (nonatomic, assign)
BOOL
shouldShowScanAreaGuidesAdded in version 6.0.0
Whether to show scan area guides on top of the preview. This property is useful during development to visualize the current scan areas on screen. It is not meant to be used for production. By default this property is NO.
- viewfinder
@property (nonatomic, strong, nullable)
id
<SDCViewfinder> viewfinderAdded in version 6.8.0
Sets the viewfinder. By default, the viewfinder is nil. Set this to an instance of SDCViewfinder if you want to draw a viewfinder.