Add some usage examples for the Script Interpreter

And replace the Script Interpreter image with a slightly nicer one.

_pages/scripting/interpreter.md

@@ -12,11 +12,52 @@ Start it via {% include bc path='Plugins|Scripting|Script Interpreter'%} or by t
 
 ![Script_Interpreter.png](/media/scripting/script-interpreter.png)
 
-## Usage
+## Usage Examples
 
-### Get the active dataset
+The examples below are written in "C-like" syntax. They should work as-is e.g. in [Groovy](groovy), [Jython](jython), and [JavaScript](javascript), but will need adjustment for languages like [Clojure](clojure) whose syntax diverges more from C.
 
-### Run an op
+| Operation                       | Code                                                  |
+|---------------------------------|-------------------------------------------------------|
+| Get the active dataset          | `image = imageDisplay.getActiveDataset()`             |
+| Run an op                       | `blurred = op.run("filter.gauss", image, 5)`          |
+| Quick display (no metadata!)    | `ui.show("Blurred", blurred)`                         |
+| Wrap image to dataset           | `ds = dataset.create(blurred)`                        |
+| Get dataset dimensionality      | `ds.numDimensions()`                                  |
+| Get length of dim #d            | `ds.dimension(d)`                                     |
+| Get dim #d axis type            | `ds.axis(d).type()`                                   |
+| Override dim #d axis type       | `ds.axis(d).setType(Axes.CHANNEL)`                    |
+| Blend channels when displaying  | `ds.setCompositeChannelCount(3)`                      |
+| Wrap dataset to data view       | `dv = imageDisplay.createDataView(ds); dv.rebuild()`  |
+| Set color table for channel #0  | `dv.setColorTable(ColorTables.MAGENTA, 0)`            |
+| Set color table for channel #1  | `dv.setColorTable(ColorTables.GREEN, 1)`              |
+| Set color table for channel #2  | `dv.setColorTable(ColorTables.BLUE, 2)`               |
+| Wrap data view to display       | `disp = display.createDisplay("Blurred", dv)`         |
+| Get a display by title          | `disp = display.getDisplay("Blurred")`                |
+| Get `DataView` from display     | `dv = disp[0]`                                        |
+| Get dataset from `DataView`     | `ds = dv.getData()`                                   |
+
+You can import `Axes` from `net.imagej.axis`, and `ColorTables` from `net.imagej.display`.
+
+See the [ImageJ2 Tutorials](https://github.com/imagej/tutorials) for more recipes.
+
+## Inspecting API of an Object
+
+The script interpreter does not yet have tab completion. :-( But you can using the following (Python) function to list the methods of an object:
+```python
+def methods(obj, prefix=""):
+    return "\n".join(row["name"] + "(" + row["arguments"] + ") -> " + row["returns"] for row in notebook.methods(obj, prefix))
+```
+E.g.:
+```
+>>> methods(imageDisplay, "getActive")
+getActiveDataset(<none>) -> net.imagej.Dataset
+getActiveDataset(net.imagej.display.ImageDisplay) -> net.imagej.Dataset
+getActiveDatasetView(<none>) -> net.imagej.display.DatasetView
+getActiveDatasetView(net.imagej.display.ImageDisplay) -> net.imagej.display.DatasetView
+getActiveImageDisplay(<none>) -> net.imagej.display.ImageDisplay
+getActivePosition(<none>) -> net.imagej.Position
+getActivePosition(net.imagej.display.ImageDisplay) -> net.imagej.Position
+```
 
 ## Issues