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Symbols

 

The Symbols window in the Map Viewer Module allows you to define the symbology of station groups, sample sets, and queries that have been added to the map.

The Symbols window can be accessed for the selected layer by clicking the Data layer setup button in the Layer Tree toolbar.

Symbology Options

The Charts and Symbols Data Settings allows you to define the symbology for the selected station group or sample set using one of the following options:

 

Symbols

Simple Symbol: symbols will be placed at the station coordinates. The symbols may be uniform or ramped based on a selected numeric parameter field.
 

Sample Symbol: symbols based on the symbols defined in the symbol editor and shown in the sample list will be placed at the station coordinates.

 

For each of these options one symbol will be placed on the map per record in the attribute table based on the aggregate data option in the Data Settings for that layer. This may result in overlapping symbols, particularly if the Station or AllSamples options are selected.

 

Simple Symbol

The simple symbol option allows you to place uniform symbols or ramped symbols for each record in the layer attributes:

 

Uniform Symbols

The simple (uniform) symbols option allows you to specify the settings for a symbol that will be used to represent all records uniformly:

Shape: choose from: diamond, ellipse (circle), hexagon, rectangle (square), pentagon, star, or triangle

Size: set the size of the symbol

Color: set the fill color of the symbol

Outline: toggle the visibility of the symbol outline

Outline Color: set the color of the symbol outline

Outline thickness: set the thickness of the outline

 

 

Ramped Symbols

The simple (ramped) symbols option allows you to define a specified number of symbols that will be ramped/graduated by either size and/or color based on the value of a given parameter for each record:

Field: allows you to specify a numeric parameter in the attribute table that will be used to ramp/graduate the symbols

Add Parameter: opens the data settings window so that you can add a parameter if it is missing from the list
 

Ramp color checkbox: allows you to specify if the symbols will be ramped/graduated by color

Ramp size checkbox: allows you to specify if the symbols will be ramped/graduated by size

 

Shape: choose from: diamond, ellipse (circle), hexagon, rectangle (square), pentagon, star, or triangle

 

Start Color: set the fill color of the symbol (with the lowest value if ramp color is off)

End Color: set the fill color of the symbol with the highest value (shown if ramp color on)
 

Outline: toggle the visibility of the symbol outline

Outline Color: set the color of the symbol outline

Outline thickness: set the thickness of the outline

 

Start Color: set the fill color of the symbol (with the lowest value if ramp size is off)

End Color: set the fill color of the symbol with the highest value (available if ramp size on)

 

Groups: specify the number of graduated symbols to use. Note that one of the groups will always be the "Undefined" category in case one of the records includes a null value (e.g. no measurement) as shown below. The minimum number of groups is 2: which would include records with a numeric value and those without. The maximum number of groups is 20.

 

 

The ramp symbols option also includes a preview window allows you to review and edit the range of values for each symbol.

Sample Symbol [HGA+ only]

The simple (ramped) symbols option allows you to plot the defined in the symbol editor and shown in the sample list on the map. No special controls are provided for this option.

 

 


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