The mask horizons module receives geologic input and an optional input masking surface, allowing horizons to be masked by an input area, by a mathematical expression, or by a line. The mask is normally applied to the first surface only. If this surface is removed, the mask is lost. However, the Allow Subsetting toggle will apply the mask to all horizons at the cost of slower processing and higher memory usage.
Ports
Direction
Name
Type
Description
Input
Input Field
Field
The field to be masked.
Input
Input Area
Field
The field to use for masking by area or by line input.
Output
Output Field
Field
The subset field.
Properties
Property
Type
Description
Masking Method
Choice: By Input Area, By Expression, By Line
Allows the user to choose between masking by the Input Area or by a user-defined expression.
Allow Subsetting
Boolean
When turned on, ensures that all layers receive the masking information so if they are later subset, they can still be masked.
Input Area Masking
Property
Type
Description
Masking Direction
Choice: Mask area in input surface, Mask area outside of input surface.
Sets whether the area inside or outside of the Input Area is masked.
Nested Surface Masking
Boolean
Allows you to cut doughnut-like shapes if you have polygons inside of other polygons.
Area Cells To Include
Choice: Contained by Area, Intersects With or Contained by Area
Allows the user to include a cell if all nodes are inside the selected area, or if any of the nodes are inside the selected area.
Expression Masking
Property
Type
Description
Masking Expression
String
The expression to use for masking.
Masking Variable List
String Array
The variables available for use during computation.
Expression Cells To Include
Choice: All Nodes Match Criteria, Any Node Matches Criteria
Allows the user to include a cell if all nodes match the expression criteria, or if any of the nodes match.