Input Points
Use the Inputs Points tab to specify a set of points that can be used to constrain the surface of the
Points
Select this check box to constrain the modelling process so that surface of the model is coincident with a set of input points.
File
Double click (or click on the Select icon) to select an Input file. Typically, the Type of the Input file will be a DAT file containing point sample data. Other file types are also supported; including Survey, Structure and Report. You can optionally apply a Filter to the records in the file.
Note: For the attributes on the tab, you can select an value using the list button or right-click and select Edit Expression to open the Expression Editor and use an expression. Note also the information in Output Field Name Attributes.
East, North and Z fields
Specify the names of the fields in which Easting, Northing, and Z coordinates are stored in the Input points file.
Orientation
The orientation of the generated wireframe is influenced by the Dip and Dip Direction of the points or strings in the Input file.
Use the inputs to include structural information (dip and dip direction) to points, and the surface will honour that orientation. Enter an orientation that is normal to the surface where it coincides with the input points.
Double-click (or click on the List icon) to select the name of the Dip Direction field (see Dip and Dip Direction). The available fall direction range is 0-360 degrees.
Double-click (or click on the List icon) to select the name of the Dip field (see Dip and Dip Direction). The available incidence angle range is 90-(-90) degrees.
Any dip direction or dip values outside of the specified ranges (i.e. negative dips) are ignored and a warning message is displayed after processing is complete.
Examples of use, cross-sectional view:
|
Dip direction = 270, Dip =90 |
Dip direction = 270, Dip = 45 |
|
|
|
|
Dip Direction = 90, Dip = 45 |
Dip direction = 270, Dip =0 |
|
|
|
Control Point Value field
Optionally, select the field in the Input file where the point values are stored. If a field name is specified, when looking at the input point values:
-
Positive values (+1) are the points or strings representing the ROOF
-
Zero values (0) are the points or strings representing the MID
-
Negative values (-1) are the points or strings representing the FLOOR
If the field name is left blank, then a default value of -1/0/1 is used for all custom input points when modelling the Footwall / Mid surface / Hanging wall surface.
Weight field
Use the Weight field option to select the field in the input file which contains the Weight attribute, if required.
In some cases, custom data points may contain a Weight attribute which is useful where a guide which does not need not be honoured exactly is required by the modeller. This is especially useful where the Snap to data option is enabled and you do not want the resulting wireframe to snap to the custom data points.
With a Weight field selected, if the weight attribute for a custom data point has a value of less than 1, it will not be snapped onto.
