5.1.2 Series Data Types

There are 6 data types, however, various series use only several of them. This chapter provides information which data types must be used for various series.

This series include Spline, Scatter, Direct Line, Percentage Area and Stepped Line strategies.

All LineSeries must have 2 data values.

• KEY - X value

• VALUE - Y value

This series include Spline, Scatter, Direct Line, Percentage Area and Stepped Line 3D strategies.

All LineSeries3D must have 3 data values.

• KEY - X value

• VALUE - Y value

• EXTENT - Z value

• KEY - X value

• VALUE - Y value

Error bar strategy may have either 3 or 4 data values.

• KEY - X value

• VALUE - Y value

• EXTENT - Symmetric error value or in case of asymmetric error bottom value

• EXTRA - In case of asymmetric error it is top error value

• KEY - X value

• VALUE - Y value

The further values on X or Y axis will be elevated as the previous VALUE.

• KEY - X value

• VALUE - Y value

• EXTENT - Elevation of the bar value

• Event bar is the implementation of Floating Bar strategy, but its values in data model are placed a little bit different.

• KEY - start time of the event

• VALUE - elevation of the event (value)

• EXTENT - end time of the event

BarSeries3D must have 3 data values:

• KEY - X value

• VALUE - Y value

• EXTENT - Z value

Surface Series is also known as density series, which represent a matrix as a different color map.

Surface must have matrix data model, meaning that if you pass a matrix to the constructor of ChartDataModel it must be a three dimensional matrix, where first dimension is just for data columns and contains only one column (corresponding to KEY column).

This series must have these data values:

• KEY - centre of bubble

• VALUE - elevation of bubble centre

• EXTENT - value for calculating diameters of bubbles

Stock Series must have these data values:

• KEY - key on X-axis (date)

• VALUE - maximum value

• EXTENT - minimum value

• EXTRA - open value

• EXTRA2 - close value

This Series must have these data values:

• KEY - vector's start x coordinate

• VALUE - vector's start y coordinate

• EXTENT - vector's end x coordinate

• EXTRA - vector's end y coordinate

This Series must have these data values:

• KEY - sector's label

• VALUE - sector's value

This Series must have these data values:

• KEY - position on the axis.

This Series must have these data values:

• KEY - angle of the polar coordinate;

• VALUE - radius of the polar coordinate;