Plot2DCompanion (weka-dev 3.9.7 API)

```
public interface Plot2DCompanion
```
Interface for classes that need to draw to the Plot2D panel *before* Plot2D renders anything (eg. VisualizePanel may need to draw polygons etc.)

Version:

$Revision$

Author:

Mark Hall (mhall@cs.waikato.ac.nz)

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  void prePlot(Graphics gx)
  Something to be drawn before the plot itself

- Method Detail
  - prePlot
```
void prePlot(Graphics gx)
```
    Something to be drawn before the plot itself
    
    Parameters:
    
    gx - the graphics context to render to