#include <BFeatureCollection.h>
Public Member Functions | |
| virtual void | Add (const BFeatureCollection &features)=0 |
| Appends the BFeature objects in the specified collection to this collection. | |
| virtual void | Add (const BFeaturePtr &feature)=0 |
| Adds a BFeature to this collection. | |
| virtual void | Add (const BFeature &feature)=0 |
| Copies the specified BFeature and adds it to this collection. | |
| BFeatureCollection (const BFeatureCollection &feats) | |
| Copy constructor. | |
| BFeatureCollection () | |
| Default constructor. | |
| virtual void | Clear (void) |
| Removes all BFeature objects from this collection. | |
| virtual const BFeaturePtr | GetAt (size_t index, bool inclCachedAttrs=true) const =0 |
| Gets the BFeature at the specified index in this collection. | |
| virtual BFeaturePtr | GetAt (size_t index, bool inclCachedAttrs=true)=0 |
| Gets the BFeature at the specified index in this collection. | |
| virtual size_t | GetCount (void) const =0 |
| Gets the number of BFeature objects in this collection. | |
| BGeometryCounts & | GetGeometryCounts (void) |
| Get the count of geometry types in this collection. | |
| const BGeometryCounts & | GetGeometryCounts (void) const |
| Get the count of geometry types in this collection. | |
| const BRect & | GetMBR (void) const |
| Gets the minimum bounding rectangle for all BFeature objects in this collection. | |
| EGeometryClass | GetSingleGeometryClass (void) const |
| Get the geometry class that limits this collection. | |
| bool | Is3d (void) const |
| Gets the flag indicating whether or not this collection contains three- dimensional BFeature objects. | |
| bool | IsSingleGeometryClass (void) const |
| Indicates whether or not the contents of this collection are limited to a single geometry class. | |
| virtual void | Release (size_t index)=0 |
| Releases the memory associated with a BFeature. | |
| virtual void | Remove (size_t index)=0 |
| Removes a BFeature from this collection. | |
| virtual void | Reserve (size_t size)=0 |
| Reserves space for the requested number of elements in this collection. | |
| void | Set3d (bool is3d) |
| Sets the flag indicating whether or not this collection contains three- dimensional BFeature objects. | |
| void | SetSingleGeometryClass (EGeometryClass gc) |
| Set the geometry class that will be used to limit this collection. | |
| virtual void | Transform (const BTransform &cst)=0 |
| Transforms the geometry of each BFeature in this collection to a different coordinate system. | |
| virtual void | TransformReverse (const BTransform &cst)=0 |
| Transforms the geometry of each BFeature in this collection to a different coordinate system using the "reverse" of the BTransform. | |
| virtual | ~BFeatureCollection () |
| Destructor. | |
Protected Member Functions | |
| void | CheckGeometryClass (const BFeaturePtr &feature) |
| Determines whether or not the input feature can be added to the collection based on its associated geometry class. | |
| void | CheckGeometryClass (const BFeature &feature) |
| Determines whether or not the input feature can be added to the collection based on its associated geometry class. | |
| virtual BRect | ComputeMBR (void) const =0 |
| Computes the current minimum bounding rectangle for all BFeature objects in this collection. | |
| void | SetChanged (bool val=true) |
| Sets the indicator of whether or not this collection has changed since the last time the MBR was calculated. | |
Protected Attributes | |
| EGeometryClass | m_geoClass |
| Only features that contain geometries with this class can be added to this collection. | |
| BGeometryCounts | m_geoCounts |
| The count of each type geometry type in this collection. | |
| bool | m_is3d |
| Indicates whether or not this collection contains three-dimensional BFeature objects. | |
| bool | m_isChanged |
| Indicates if this collection has changed since the last time the MBR was calculated. | |
| BRect | m_mbr |
| The minimum bounding rectangle for the BFeature objects in the collection. | |
| BFeatureCollection | ( | ) | [inline] |
Default constructor.
This constructor will create an empty collection.
| BFeatureCollection | ( | const BFeatureCollection & | feats | ) | [inline] |
| virtual ~BFeatureCollection | ( | ) | [inline, virtual] |
Destructor.
| virtual void Add | ( | const BFeatureCollection & | features | ) | [pure virtual] |
Appends the BFeature objects in the specified collection to this collection.
| features | The collection of BFeature objects to be added. |
Implemented in BFeatures, and BFeaturesOnDisk.
| virtual void Add | ( | const BFeaturePtr & | feature | ) | [pure virtual] |
Adds a BFeature to this collection.
| feature | Pointer to the feature to be added. |
Implemented in BFeatures, and BFeaturesOnDisk.
| virtual void Add | ( | const BFeature & | feature | ) | [pure virtual] |
Copies the specified BFeature and adds it to this collection.
| feature | The BFeature to be copied and added to this collection. |
Implemented in BFeatures, and BFeaturesOnDisk.
| void CheckGeometryClass | ( | const BFeaturePtr & | feature | ) | [inline, protected] |
Determines whether or not the input feature can be added to the collection based on its associated geometry class.
| feature | The BFeature object to be checked |
| BUnknownGeometryException | This exception will be thrown if the geometry associated with the specified feature is not of the correct class. |
| void CheckGeometryClass | ( | const BFeature & | feature | ) | [inline, protected] |
Determines whether or not the input feature can be added to the collection based on its associated geometry class.
| feature | The BFeature object to be checked |
| BUnknownGeometryException | This exception will be thrown if the geometry associated with the specified feature is not of the correct class. |
| virtual void Clear | ( | void | ) | [inline, virtual] |
Removes all BFeature objects from this collection.
Derived classes should call Clear method in the base class implementation.
Reimplemented in BFeatures, and BFeaturesOnDisk.
| virtual BRect ComputeMBR | ( | void | ) | const [protected, pure virtual] |
Computes the current minimum bounding rectangle for all BFeature objects in this collection.
Implemented in BFeatures, and BFeaturesOnDisk.
| virtual const BFeaturePtr GetAt | ( | size_t | index, | |
| bool | inclCachedAttrs = true | |||
| ) | const [pure virtual] |
Gets the BFeature at the specified index in this collection.
| index | The zero-based index of the desired BFeature. | |
| inclCachedAttrs | Indicates whether the returned feature will contain attributes. This applies only when the features are stored in a disk cache, and can be used to improve performance in applications where attributes are not needed. If the features are stored in memory, this has no effect. |
| BIndexOutOfBoundsException | This exception will be thrown if the specified index does not correspond to a BFeature in this collection. |
Implemented in BFeatures, and BFeaturesOnDisk.
| virtual BFeaturePtr GetAt | ( | size_t | index, | |
| bool | inclCachedAttrs = true | |||
| ) | [pure virtual] |
Gets the BFeature at the specified index in this collection.
| index | The zero-based index of the desired BFeature. |
| inclCachedAttrs | Indicates whether the returned feature will contain attributes. This applies only when the features are stored in a disk cache, and can be used to improve performance in applications where attributes are not needed. If the features are stored in memory, this has no effect. |
| BIndexOutOfBoundsException | This exception will be thrown if the specified index does not correspond to a BFeature in this collection. |
Implemented in BFeatures, and BFeaturesOnDisk.
| virtual size_t GetCount | ( | void | ) | const [pure virtual] |
Gets the number of BFeature objects in this collection.
Implemented in BFeatures, and BFeaturesOnDisk.
| BGeometryCounts& GetGeometryCounts | ( | void | ) | [inline] |
Get the count of geometry types in this collection.
| const BGeometryCounts& GetGeometryCounts | ( | void | ) | const [inline] |
Get the count of geometry types in this collection.
| const BRect& GetMBR | ( | void | ) | const [inline] |
Gets the minimum bounding rectangle for all BFeature objects in this collection.
| EGeometryClass GetSingleGeometryClass | ( | void | ) | const [inline] |
Get the geometry class that limits this collection.
| bool Is3d | ( | void | ) | const [inline] |
| bool IsSingleGeometryClass | ( | void | ) | const [inline] |
Indicates whether or not the contents of this collection are limited to a single geometry class.
| virtual void Release | ( | size_t | index | ) | [pure virtual] |
Releases the memory associated with a BFeature.
| index | The zero-based index of the BFeature to be released. |
| BIndexOutOfBoundsException | This exception will be thrown if the specified index does not correspond to a BFeature in this collection. |
Implemented in BFeatures, and BFeaturesOnDisk.
| virtual void Remove | ( | size_t | index | ) | [pure virtual] |
Removes a BFeature from this collection.
| index | The zero-based index of the BFeature to be removed. |
| BIndexOutOfBoundsException | This exception will be thrown if the specified index does not correspond to a BFeature in this collection. |
Implemented in BFeatures, and BFeaturesOnDisk.
| virtual void Reserve | ( | size_t | size | ) | [pure virtual] |
Reserves space for the requested number of elements in this collection.
| size | The number of elements for which space shall be reserved. |
Implemented in BFeatures, and BFeaturesOnDisk.
| void Set3d | ( | bool | is3d | ) | [inline] |
| void SetChanged | ( | bool | val = true |
) | [inline, protected] |
Sets the indicator of whether or not this collection has changed since the last time the MBR was calculated.
| val | Optional parameter that indicates if this collection has been changed since the last time the MBR was calculated. |
| void SetSingleGeometryClass | ( | EGeometryClass | gc | ) | [inline] |
Set the geometry class that will be used to limit this collection.
Call this before adding any features to the collection.
| gc | All geometries added to this collection must have this geometry class. |
| virtual void Transform | ( | const BTransform & | cst | ) | [pure virtual] |
Transforms the geometry of each BFeature in this collection to a different coordinate system.
| cst | The BTransform that defines the transformation. |
Implemented in BFeatures, and BFeaturesOnDisk.
| virtual void TransformReverse | ( | const BTransform & | cst | ) | [pure virtual] |
Transforms the geometry of each BFeature in this collection to a different coordinate system using the "reverse" of the BTransform.
| cst | The BTransform that defines the transformation. |
Implemented in BFeatures, and BFeaturesOnDisk.
EGeometryClass m_geoClass [protected] |
Only features that contain geometries with this class can be added to this collection.
If the value is eClassNone, all features may be added.
BGeometryCounts m_geoCounts [protected] |
The count of each type geometry type in this collection.
bool m_is3d [protected] |
Indicates whether or not this collection contains three-dimensional BFeature objects.
bool m_isChanged [mutable, protected] |
Indicates if this collection has changed since the last time the MBR was calculated.
The minimum bounding rectangle for the BFeature objects in the collection.