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Clicking the Advanced button on an OGC Layer will allows you to configure the following information for your Layer.

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To display the thematic options first check the Thematics box. Here you can specify how you wish the thematic information to be configured. You will see one of the following dialogs depending upon whether you layer is an Area (or polygon) or a Point Layer.

Field Name

Select the Field name that you wish to use to create your Thematic. Only fields of numeric types may be selected for thematic calculations.

Method

Equal Count: This will classify your data such that for each range of data, there are an equal number of records (or rows in the table). Ranges will not be of equal size.

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Standard Deviation: This places ranges at various standard deviations either side of the mean value of your data. Ranges will not necessarily be the same size, or contain the same number of records.Note that records with null values for the thematic field will be ignored.

Number of Ranges

Select the number of Ranges you wish for your Thematic Layer

Shape

Select the Shape you wish for your Point Thematic Layer

Min Size

Select the minimum size you wish for your Point Thematic Layer

Max Size

Select the minimum size you wish for your Point Thematic Layer

Colour

Choose the colour you wish for the Point Thematic Layer.

Start Colour

Choose the colour you wish for the Start of your Area range.

End Colour

Choose the colour you wish for the End of your Area range.

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To display the geometry options first check the Geometry box.

Source

This can be used to specify a Select statement for retrieving the geometry for a different table. Please speak to your Astun Consultant for more information if required.

Field

Use the Field drop down to select the field containing the geometry information.