api:dk11:activex:tatukgis_xdk11.itgis_classificationpixel
Table of Contents
ITGIS_ClassificationPixel interface
DK11 for ActiveX | TatukGIS_XDK11.ITGIS_ClassificationPixel | Interfaces | Methods | Properties
Class that enables performing advanced pixel data classification in the process of creating choropleth (thematic) maps.
Syntax
// C# public interface ITGIS_ClassificationPixel: ITGIS_ClassificationAbstract { }
' VisualBasic Public Interface ITGIS_ClassificationPixel Implements ITGIS_ClassificationAbstract End Class
// Oxygene type ITGIS_ClassificationPixel = public interface( ITGIS_ClassificationAbstract ) end;
Implements
Methods
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| AddClassBreak | public | Adds a new class break. (Inherited from ITGIS_ClassificationAbstract) |
|
| AttachDelphiObj | public | Only for internal use of TatukGIS. (Inherited from ITBaseObject) |
|
| Classify | public | Performs the classification. (Inherited from ITGIS_ClassificationAbstract) |
|
| Classify_2 | public | Performs the classification and applies to defined ParamsList. (Inherited from ITGIS_ClassificationAbstract) |
|
| Create_ | public | Creates an object. | |
| DelphiObj | public | Only for internal use of TatukGIS. (Inherited from ITBaseObject) |
|
| EstimateNumClasses | public | Performs the pre-classification and sets NumClasses property. (Inherited from ITGIS_ClassificationAbstract) |
|
| MustCalculateStatistics | public | If True, statistics from layer assigned to classification need to be calculated. (Inherited from ITGIS_ClassificationAbstract) |
|
Properties
Inherited
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| Band | public | Band from which values are used in classification. | |
| ClassBreaks | public | Computed class breaks. (Inherited from ITGIS_ClassificationAbstract) |
|
| ColorRamp | public | The color ramp used to generate colors for class breaks. (Inherited from ITGIS_ClassificationAbstract) |
|
| EndColor | public | Ending color used to generate ramp for class breaks. (Inherited from ITGIS_ClassificationAbstract) |
|
| Interval | public | Class interval size; default is 1. (Inherited from ITGIS_ClassificationAbstract) |
|
| Layer | public | Layer assigned to object. (Inherited from ITGIS_ClassificationAbstract) |
|
| Method | public | Classification method; NaturalBreaks by default. (Inherited from ITGIS_ClassificationAbstract) |
|
| NumClasses | public | Number of classes; default is 5, max is 30. (Inherited from ITGIS_ClassificationAbstract) |
|
| ShowLegend | public | If True, features will be shown in legend panel. (Inherited from ITGIS_ClassificationAbstract) |
|
| StartColor | public | Starting color used to generate ramp for class breaks. (Inherited from ITGIS_ClassificationAbstract) |
|
| Target | public | Indicates the data to be used for classification. (Inherited from ITGIS_ClassificationAbstract) |
|
Remarks
Example
Pseudocode:
// while 'lyr' is opened raster layer classifier = new TGIS_Classification( lyr ); // select one of available classification methods classifier.Method = TGIS_ClassificationMethod.EqualInterval; // specify number of classes classifier.NumClasses = 5; // specify attribute field with numerical values classifier.Band = '1'; // check if layer's statistics require recalculation if classifier.MustCalculateStatistics then lyr.Statistics.Calculate ; // run classification process, visual properties will be applied automatically classifier.Classify ; // check generated class breaks values // class breaks count equals NumClasses + 1 for i from 0 to classifier.NumClasses value = classifier.ClassBreaks[i];
2022/11/16 01:08