For a browser to display an image with an image map, the following sequence of events must have occurred:

1. The browser sends a HTTP request to the server.
   
   
2. The server returns a HTML web page that contains an <IMG> tag for the image, and the <MAP> and <AREA> tags for the image map.
   
   
3. The browser receives the HTML web page. It then sends another HTTP request to the server using the URL in the <IMG> tag for the actual image.
   
   
4. The server returns the actual image to the browser.

Note that a ChartDirector chart image needs to be generated in step (2), so that we can produce the image map. However, the image itself can only be delivered to the browser in step (4), which is another HTTP connection. So after the chart image is produced in step (2), it must be saved in "some place". When step (4) occurs, the server can send the image to the browser.

The "some place" can be a "temporary file" or a "session variable". The clickable examples in this documentation will be based on the "session variable" approach.

Class	Description
XYChart	The XYChart class represents XY charts. The XYChart class is a subclass of BaseChart.
PlotArea	The PlotArea class represents plot areas in XY charts.
Axis	The Axis class represents x and y axes in XY charts.
Mark	The Mark class represents mark lines. It is a subclass of TextBox. Mark objects are created using Axis.addMark.
Layer	The Layer class is the base class for all XYChart layer classes.
BarLayer	The BarLayer class represents bar layers. BarLayer is a subclass of Layer.
LineLayer	The LineLayer class represents line layers. LineLayer is a subclass of Layer.
SplineLayer	The SplineLayer class represents spline layers. SplineLayer is a subclass of LineLayer.
StepLineLayer	The StepLineLayer class represents step line layers. StepLineLayer is a subclass of LineLayer.
TrendLayer	The TrendLayer class represents trend layers. TrendLayer is a subclass Layer.
InterLineLayer	The InterLineLayer class represents interline layers. InterLineLayer is a subclass of Layer.
ScatterLayer	The ScatterLayer class represents scatter layers. ScatterLayer is a subclass of Layer.
AreaLayer	The AreaLayer class represents area layers. AreaLayer is a subclass of Layer.
HLOCLayer	The HLOCLayer class represents high-low-open-close layers. HLOCLayer is a subclass of Layer.
CandleStickLayer	The CandleStickLayer class represents candlestick layers. CandleStickLayer is a subclass of Layer.
BoxWhiskerLayer	The BoxWhiskerLayer class represents box-whisker layers. BoxWhiskerLayer is a subclass of Layer.
DataSet	The DataSet class represents data sets.

Class	Description
PolarChart	The PolarChart class represents polar charts (including radar charts). The PolarChart class is a subclass of BaseChart.
RadialAxis	The RadialAxis class represents radial axes in polar charts. The radial axis is the axis representing the radius component of a polar coordinate.
AngularAxis	The AngularAxis class represents angular axes in polar charts. The angular axis is the axis representing the angular component of a polar coordinate.
PolarLayer	The PolarLayer class is the base class for all PolarChart layer classes.
PolarLineLayer	The PolarLineLayer class represents polar area layers. PolarLineLayer is a subclass of PolarLayer.
PolarAreaLayer	The PolarAreaLayer class represents polar area layers. PolarAreaLayer is a subclass of PolarLayer.
PolarSplineLineLayer	The PolarSplineLineLayer class represents polar spline line layers. PolarSplineLineLayer is a subclass of PolarLineLayer.
PolarSplineAreaLayer	The PolarSplineAreaLayer class represents polar spline area layers. PolarSplineAreaLayer is a subclass of PolarAreaLayer.

Class	Description
DrawArea	The DrawArea class represents drawing surfaces, with methods for performing graphics primitives (such as drawing lines, shapes and texts) and the surfaces.
TTFText	The TTFText class represents text blocks.

Class	Description
ArrayMath	The ArrayMath class is a utility class used to perform array computations.
RanTable	RanTable is a utility class to produce tables with random numbers.