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LuciadCPillar C# 2024.0.04
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LuciadCPillar C# 2024.0.04
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This provider can create handles to edit Polyline geometries.
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| interface | IHandleFactory |
| Allows you to specify which handles are used by this handles provider. More... | |
Properties | |
| Luciad.Geometries.Constraints.IPolylineConstraint | Constraint [get, set] |
| The constraint that is applied to the handles' edit actions. More... | |
| Luciad.Edit.Geometries.PolylineHandlesProvider.IHandleFactory | HandleFactory [get, set] |
| The handle factory used by the handles provider. More... | |
| uint | MaxPointCount [get, set] |
| The maximum number of points a polyline can have. More... | |
| uint | MinPointCount [get, set] |
| The minimum number of points a polyline can have. More... | |
This provider can create handles to edit Polyline geometries.
It offer the following handles:
move point handles insert point handles prepend point handle append point handle remove point handles elevation point handles. Note that the default implementation of PointHandlesProvider.IHandleFactory automatically omits these handles on a 2D map, or on a 3D map for polylines without elevation. Note: the handle to translate the entire feature is typically created by the IFeatureHandlesProvider. FeatureHandlesProvider does this by default.
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Creates a new handles provider that can create handles to modify Polyline geometries.
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Indicates if this handles provider can create handles for the given geometry.
| geometry | an observable geometry, cannot be null |
| context | the context. Contains additional information about the edited feature, cannot be null. |
Feature Implements Luciad.Edit.Geometries.IGeometryHandlesProvider.
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Returns the handles for the given feature.
Note: translation of features is handled by IFeatureHandlesProvider. So geometry handles providers should not provide handles to translate a geometry.
| geometry | the observable geometry for which to provide handles, cannot be null. |
| context | the context. Contains additional information about the edited feature, cannot be null. |
| geometryEditCallback | a callback that notifies the caller when the Feature has changed, cannot be null. |
null. Implements Luciad.Edit.Geometries.IGeometryHandlesProvider.
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Provides a translate action that can be used by the caller to add translation behavior.
A translation handle is typically added by an IFeatureHandlesProvider, like for example the FeatureHandlesProvider implementation. It calls this method to retrieve a translate action, and uses it to create a TranslateEditHandle.
When ITranslateEditAction.Translate is called, the returned implementation must:
IGeometryHandlesProvider's constraint (if configured) on the translated geometry IGeometryEditCallback with the resulting geometry | geometry | the observable geometry for which to provide a translate action, cannot be null |
| context | the context, cannot be null |
| geometryEditCallback | a callback that notifies the caller of this method when a translation has occurred, cannot be null |
null. Implements Luciad.Edit.Geometries.IGeometryHandlesProvider.
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The constraint that is applied to the handles' edit actions.
Returns the constraint that is applied to the handles' edit actions. Can be null if no constraint is set.
Sets the constraint that is applied to the handles' edit actions. They always call this constraint with a PolylineChange, describing a single change. More specifically:
Move point handles and elevation point handles provide a PolylineChange containing one moved point index. Insert point handles and the prepend or append point handle provide a PolylineChange containing one inserted point index. Remove point handles provide a PolylineChange containing one removed point index.
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getset |
The handle factory used by the handles provider.
Returns the handle factory used by the handles provider.
Sets the handle factory used by the handles provider. If this method is not called, a default handle factory is used. You can change the behavior of this default handle factory by:
IHandleFactory implementation, by delegating to the default factory | System.ArgumentNullException | when null is passed. |
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The maximum number of points a polyline can have.
Returns the maximum number of points a polyline can have.
Sets the maximum number of points a polyline can have. If a polyline's point count is higher than or equal to this value, this handles provider will not provide handles to insert, prepend or append new points for that polyline. By default, this value is the maximum value of size_t, which realistically corresponds to "no maximum".
| System.ArgumentException | if maxPointCount is lower than the current min point count. |
MaxPointCount
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The minimum number of points a polyline can have.
Returns the minimum number of points a polyline can have.
Sets the minimum number of points a polyline can have. If a polyline's point count is lower than or equal to this value, this handles provider will not provide handles to remove points from that polyline. By default, this value is 2.
| System.ArgumentException | if minPointCount is lower than 2, or higher than the current maximum point count. |
MinPointCount 
1.9.4