DBDB-V Configuration Panel (Shaded Relief)

The data describes depths for a variable grid of points and is available at multiple levels. The DBDBV filter converts each point to a colour depending on its depth value.

The Format Configuration panel allows automatic or user-defined colours to be allocated to depth ranges. The resulting raster can comprise of simple colours or can have sunlight-shading applied to it.

The DBDB-V Configuration Panel allows the definition of the colours to be used with the DBDBV data. The panel is available at dataset or file level. Configuring the dataset allows the same colours to be applied to all of the data in the dataset.

The panel is divided into 9 sections:

• Resolution: This selects the resolution level of the data
• Mode: This selects if the shading is based on height (in metres) or slope (gradient)
• Slope Algorithm: This selects which algorithm is used to calculate the slope between adjacent points.
• Sun Shading: This applies sunlight shading to the terrain when in height mode.
• Statistics: This gives minimum/maximum height to assist in setting levels. The grid spacing of the file (number of posts in x/y) is displayed as well.
• Contour Levels: This area defines a set of colour bands.
• Land Colour: This defines the colour or transparency of values above the shallowest level.
• Terrain Exaggeration: This control enables the terrain heights to be exaggerated by the factor entered.
• Z Factor Scale: This control enables the grid units to be adjusted or scaled to so as to match the altitude units, e.g. scaling degrees to metres.

Note: Land Colour is only available if Legacy Slope and Legacy Shading is selected. Otherwise the land is coloured by the first contour in the list.

Land Colour

To define the colour of the land (elevation 0):

• Click the Select button.
• Select the colour in the colour dialog.
• Hit OK.

Links:

• Vector Configuration Panel
• Raster Configuration Panel
• Terrain Configuration Panel