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Annotating crossplots
Highlight crossplot features by drawing either a polygon
or ellipse in the Crossplot Viewer and then changing the default annotation
display properties. The data points that fall within the polygon you draw are highlighted on the synthetic. This enables you to see where data points of interest that are on the crossplot come from. For details on creating a crossplot, see Related topics below.
When drawing an ellipse, you can specify an eccentricity
of 0 to 0.99 where 0 represents a circle and 0.99 represents the narrowest
(most eccentric) ellipse. Typing 1 draws a line instead of an ellipse.
To annotate crossplots:
- With at least
one crossplot created in the main synthetic display, from the Edit
menu, select Crossplot properties
(
).
The Crossplot
Viewer and dialog box opens.

- Click the Enclosures tab.
- Do either of the
following:
- To
draw a polygon, click Start,
and then click to define the anchor points for the polygon segments in
the Crossplot Viewer. Click End
to complete and automatically enclose the polygon.
- To
draw an ellipse, type a decimal value from 0 to 0.99 in the eccentricity
box. Click Start and then click
to anchor one end of the ellipse. Move your mouse across from the start
anchor point to the desired end point and then click to anchor that point.
As you draw polygons and ellipses, they're added
to the Enclosure list below the drawing controls. Draw multiple annotations to encompass different features.
- In the Enclosure List, select the annotation with which to work (SHIFT+CLICK or
CTRL+CLICK for multiple selection).
In
the Name box, type a descriptive name for the annotation(s) selected above.
- Select from the
following display properties:
- Outline
to specify the annotation border color.
- Infill
to specify the annotation fill color within the annotation border.
- Both
to select one color for both the annotation border and fill.
- In the Link List pane, click the synthetic or log on which to display the data point highlighting.
To hide an annotation from the Crossplot Viewer, clear the check box in the Show column of the Enclosure list. You can also select the enclosure and then press Delete.
Related topics
Creating crossplots
Color mapping crossplots
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