IVZTreeMap.TextVisual

Syntax

Description

The TextVisual property determines text visualizer.

Example

Executing the example requires that the repository contains an express report with the EXP identifier. The module containing the example should have links to the Express, Metabase and Visualizators system assemblies. The specified procedure should be called from the Main entry point.

Next, capitalize first letters of entrant strings:

// Determine custom data transformer
Class MyAdapter: object, IVZDataAdapter
    // Capitalize first letters of all strings
    Function GetData(Value: Variant): Variant;
    Var
        str: String;
        chr: Char;
    Begin
        str := Value As String;
        // Get the first character of the line
        chr := str.Chars(0);
        // Capitalize this character
        chr := Char.ToUpper(chr);
        // Get string with capital letter
        str := chr + str.SubString(1, str.Length -1);
        Return str;
    End Function GetData;
End Class MyAdapter;

Sub UserProc;
Var
    Metabase: IMetabase; // Metabase
    EaxAnalyzer: IEaxAnalyzer; // Express report
    TreeMap: IVZTreeMap; // Tree map
    TextVisual: IVZTextVisual; // Text visualizator
    DataSourceMapping: IVZDataSourceMapping; // Settings used to correlate data
    DataTransformer: IVZDataAdapter; // Data transformer
Begin
    // Get metabase object
    Metabase := MetabaseClass.Active;
    // Get express report object
    EaxAnalyzer := Metabase.ItemById("EXP").Edit As IEaxAnalyzer;
    // Get tree map
    TreeMap := EaxAnalyzer.TreeMap.TreeMap;
    // Create new instance of text visualizer
    TextVisual := New VZTextVisual.Create;
    // Get settings of data mapping
    DataSourceMapping := TextVisual.TextMapping;
    // Set mapping type "Data transformer"
    DataSourceMapping.MappingType := VisualizatorDataMappingType.DataMappingTransformer;
    // Create and set custom data transformer
    DataTransformer := New MyAdapter.Create;
    DataSourceMapping.DataTransformer := DataTransformer As IVZDataAdapter;
    Debug.WriteLine("String transformation:");
    Debug.IndentLevel := 1;
    Debug.WriteLine("Input: ""prognoz"", output: " +
        (DataTransformer.GetData("prognoz") As String ));
    Debug.WriteLine("Input: ""tree map"", output: " +
        (DataTransformer.GetData("tree map") As String ));
    // Set visualizer used to determine bubble tree element size
    TreeMap.TextVisual := TextVisual;
End Sub UserProc;

After executing the example, the custom data transformer is created, used to capitalize first letters of entrant strings:

String transformation:

Input: "prognoz", output: Prognoz

Input: "tree map", output: Tree map