Layer Theme Editor

Add

Add new sub theme. This displays a blank Sub Theme Editor Pane. Enter a name for the new sub-theme and specify the desired settings.

Delete

Deletes the current sub theme. Clicking this button brings up a confirmation message . Click Yes to confirm permanent deletion of the sub theme or click No to cancel.

Move Up

Promotes the current sub theme. Clicking this button raises the selected sub theme to the next level. You can click this button several times to bring the sub theme up one level per click.

Move Down

Demotes the current sub-theme. Clicking this button lowers the selected sub theme to the next level. You can click this button several times to bring the sub theme down one level per click.

Duplicate

Copies the current sub theme. Clicking this button creates a copy of the currently selected sub theme. The sub theme editor pane will contain the same settings as the copied sub-theme.

Enables / disables the current sub theme. Clicking this button shows / hides the theme so that it is / it is not displayed on the GeoPlan Window. When a sub theme is disabled, its icon is greyed out with the disable icon displayed on top.

Click the button again to enable (show) the theme.

Name

Name of the current theme.

Field

The field name in the dropdown list is the name in the database.

The list will contain any SQL expressions previously added using the Edit SQL functionality described below.

SQL

Use the SQL button to add and edit SQL expressions. The Edit Expressions dialog will be displayed.

Added SQL expressions will become available in the Field name dropdown list (see above).

Visible Range

A visible range over which the theme is applied should be set.

For each, select an existing level from the drop-down list or type in a new level.

Legend Control

Controls whether the current theme is to be shown in the Thematic Key Window and printed legend.

Range

The most valid range settings for your previous selections are selected by default. You can select the range settings you require if the default ones are not suitable.

Range Settings are:

Continuous. Displays objects differently based on a series of ranges of a parameter. Suitable for parameters with continually variable values.

Individual. Displays objects differently based on individual values (rather than ranged values) of a parameter. Suitable for parameters with a small number of discrete values.

Flag. This is a special case of the Individual settings where the discrete value being displayed is the data flag.

Use AutoRange - With this option checked, IWLive Pro Operator Client automatically re-scales the values if you open a different network.

Absolute Values - Removes any sign and simply uses the absolute value of the parameter. Ideal for removing the effect of direction.

Theme Nulls - Allows the user to set up a theme for field values that have not been explicitly assigned #NULL values. Ticking this box :

• adds a #NULL row in the Ranged Themes grid .
• adds a "bin" for #NULL value in the Draw Style Preview.

Draw Style Preview

Displays a preview of the current theme for the permitted values detailed in the Value column of the Ranged Themes grid. If not all of the permitted values are shown in the preview section due to lack of space, the preview area will be outlined with dashed lines.

A cumulative frequency histogram of the theme ranges is displayed at the bottom of the preview. This may be used in conjunction with the Ranged Themes AutoScale functionality in order to select a suitable distribution.

Properties

Specifies the theme properties that are shown and customisable in the Ranged Themes grid. Property check boxes that are ticked in the Properties box will have a corresponding column in the Ranged Themes grid.

Select the desired properties for your theme.

Ranged Themes

• Plus and minus buttons - respectively add or remove values within the range; hold the button down to add or remove multiple values. The number of ranges is displayed next to the buttons. When values are added, these are calculated according to the distribution type that has been selected (see below).
• Value column: Either use the values automatically set up by IWLive Pro Operator Client or fill in the values you need manually.
• Autoscale button. Click to apply a different type of distribution for the values. Click the button until the desired distribution is obtained. Use in conjunction with the cumulative frequency histogram displayed in the Draw Style Preview to select a suitable distribution. Available distribution types are:
  • Linear (default)
  • S curve
  • N curve
  • Exponential - (useful if most of the parameter values are in the low end)
  • Log - (useful if most of the parameter values are in the high end)
• Fix column - Check this box to fix the value of the range to the current value. When fixed, this value will not change when the value column is scaled (When the Use AutoRange checkbox in Range is ticked). It is possible to fix/unfix all the values at once, by using the Toggle All button (see below).
  • Toggle All - click this button to turn on/ off the fix for all the values of the range at once.
• Available attributes - these are listed in the sections below. Use the checkboxes and the dropdown boxes to set up the sub theme.
  • Auto-Theme button - this button is very similar to the Autoscale button for the Value column. It is particularly useful if you have added intermediate values by using the Plus button at the top right-hand corner of the Ranged Themes section. Set a value for the top and bottom property settings in the grid and then click the Auto-Theme button so that the software interpolates between the low and high values to create a graduated distribution. For properties relating to colour, clicking again on this button cycles through different ways of traversing the colour space between the high and low value.

Symbol

Tick the checkbox to use a symbol other than the default setting (None).

Select the desired symbol for each value in the corresponding dropdown list.

Symbol size

Tick the checkbox to use a symbol size other than the default setting (60).

Select the desired size for each value in the corresponding dropdown list.

Symbol colour

Tick the checkbox to use a symbol colour other than the default setting (black).

Select the desired colour for each value in the corresponding dropdown list.

Symbol visibility (%)

Tick the checkbox to use a visibility other than the default one (100%) for the symbol.

Use the slider to control the symbol visibility for each value (Slider at the left end indicates 0% visibility whilst slider at the right end means 100% visibility).

Symbol font

Tick the checkbox to use a font other than the default one (Ariel) for the character symbols.

Select the desired font for each value from the dropdown list in the Choose Symbol dialog.

Tick the checkbox to use symbol characters in the theme.

Select the desired character for each value from the chart in the Choose Symbol dialog.

Line Colour

Tick the checkbox to use a line colour other than the default setting (black).

Select the desired colour for each value in the corresponding dropdown list.

Line Visibility

Tick the checkbox to use a visibility other than the default one (100%) for the line.

Use the slider to control the symbol visibility for each value.

Line Style

Tick the checkbox to use a line style other than the default setting (solid).

Select the desired style for each value in the corresponding dropdown list.

Line Width

Tick the checkbox to use a line width other than the default setting (1).

Select the desired style for each value in the corresponding dropdown list.

Arrows

Tick this checkbox to use arrows in the theme.

Select the desired number of arrows for each value in the corresponding dropdown list.

Arrow Style

To be used in conjunction with the Arrow property.

Select the desired style (-->-- or <--->) for each value in the corresponding dropdown list.