api:dk11:delphi:gislayervector.tgis_dynamicaggregatorabstract
Table of Contents
TGIS_DynamicAggregatorAbstract class
DK11 for Delphi | GisLayerVector.TGIS_DynamicAggregatorAbstract | Classes | Constructors | Fields | Methods | Properties
Base class for TGIS_LayerVector.DynamicAggregator implementation. Purpose of this class is to dynamically add and hide shapes upon drawing process. Sample use is dynamic binning or clustering.
Syntax
// Delphi type TGIS_DynamicAggregatorAbstract = class( TGIS_BaseObjectDisposable ) end;
// C++ Builder class PASCALIMPLEMENTATION TGIS_DynamicAggregatorAbstract : public TGIS_BaseObjectDisposable { };
Inheritance
Constructors
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| Create | public | Create a processor instance. | |
Fields
Inherited
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| useConfig | protected | If true then initialization of visual appearance is blocked because it is going to be read from a project/config file. | |
Methods
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| AddShape(TGIS_Shape; TObject) | public | Adds a new shape to be drawn | |
| AddShape(TGIS_Shape; Variant; TGIS_UidArray) | public | Adds a new shape to be drawn | |
| applyConfigOptions | protected | Read config option parameters. | |
| HideShape | public | Hide a shape against being drawn. | |
| Prepare | public | Prepares dynamic shapes. | |
| SetUp | public | Perform internal aggregator setup. | |
| storeConfigOptions | protected | Write config option parameters. | |
| useShapeType | protected | Set shape type t be used by aggregator. | |
Properties
Inherited
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| Caption | public | User friendly name (translated). | |
| IsPreparing | public | True if aggregator is executing Prepare(). | |
| Layer | public | Layer on which the processor is constructed. | |
| Name | public | Unique aggregator name. | |
| Radius | public | A radius within which shapes will be aggregated. | |
| RadiusAsText | public | A radius within which shapes will be aggregated expressed in human readable form, like '10pt', '3in'.Uses AsText parameter syntax. | |
| Threshold | public | Minimum number of shapes to form an aggregator. | |
Remarks
All dynamic aggregation implementation classes inherit from this base class.
This class provides properties to customize aggregation behavior:
2022/11/16 01:22