How to Start
- Bathymetry Toolbar button of the
- Create Static Surface option of the Layer menu in the Main Menu bar
What it Does
This dialog launches a job to create a static surface from a line selection.
Make sure you have selected the lines you want to use to build the static surface then select the option to create a static surface and the above dialog will appear. By default it will be called "StaticSurface" but it is suggested that you choose a more meaningful name for your surface. If the current project already has a static surface named "StaticSurface" it will append a dash followed by a number as the default name. The system will use the selected lines to suggest a potentially good default resolution for processing but you can override it with whatever value you feel is suitable. By default a static surface will be built to enclose all the data chosen to be added. You can override this by entering in custom bounds (in the project's coordinate system) and making sure the "Limit Horizontal bounds" option is selected. If you selected a rectangular area from the main window before bringing up this dialog then those bounds will be shown as the "Limit Horizontal bounds". By default all available systems in the raw survey data are selected to be included in the surface and are listed in the systems section. You can choose to remove data from specific systems by un-checking that system. If you are building a Static Surface from Processed Point files there will be no systems to choose from.
The gridding type will specify the gridding algorithm that controls how a set of points are gridded. There are five types of surfaces that can be used from irregularly spaced XYZ data:
- Weighted Moving Average – the default weighted average algorithm. Specify the weight diameter in the 'Weight Diameter' section.
- Shallow Biased – minimum value in the cell
- Median Filtered – median value in the cell
- Deep - the deepest value in the cell
- Root Mean Square - uses a RMS algorithm
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