Tool Focal Mechanism (Beachball Plots)
This tool creates a new polygon layer with beachball plots as representation of focal mechanism solution data. Focal mechanism data of earthquakes have to be supplied as strike and dip angles of the fault plane and rake angle (slip vector) as deviation from the strike angle.
References
- Cronin, V. (2010): A Primer on Focal Mechanism Solutions for Geologists. Baylor University. pdf.
- Author: O.Conrad (c) 2018
- Menu: Visualization|Shapes
Parameters
Name | Type | Identifier | Description | Constraints | |
---|---|---|---|---|---|
Input | Points | Shapes, input | POINTS | - | - |
Output | Focal Mechanism Beachballs | Shapes, output | PLOTS | - | - |
Options | Strike | Table field | STRIKE | - | - |
Dip | Table field | DIP | - | - | |
Rake | Table field | RAKE | - | - | |
Size (*) | Table field | SIZE | - | - | |
Default | Floating point | SIZE_DEF | - | Minimum: 0.000000 Default: 1.000000 | |
Scale to... | Value range | SIZE_RANGE | - | - | |
Arc Vertex Distance [Degree] | Floating point | DARC | - | Minimum: 0.100000 Maximum: 10.000000 Default: 5.000000 | |
Style | Choice | STYLE | - | Available Choices: [0] one [1] two Default: 0 | |
(*) optional |
Command-line
Usage: saga_cmd shapes_tools 29 [-POINTS <str>] [-STRIKE <str>] [-DIP <str>] [-RAKE <str>] [-SIZE <str>] [-SIZE_DEF <double>] [-SIZE_RANGE_MIN <double>] [-SIZE_RANGE_MAX <double>] [-PLOTS <str>] [-DARC <double>] [-STYLE <str>] -POINTS:<str> Points Shapes, input -STRIKE:<str> Strike Table field -DIP:<str> Dip Table field -RAKE:<str> Rake Table field -SIZE:<str> Size Table field -SIZE_DEF:<double> Default Floating point Minimum: 0.000000 Default: 1.000000 -SIZE_RANGE_MIN:<double> Scale to... Value range -SIZE_RANGE_MAX:<double> Scale to... Value range -PLOTS:<str> Focal Mechanism Beachballs Shapes, output -DARC:<double> Arc Vertex Distance [Degree] Floating point Minimum: 0.100000 Maximum: 10.000000 Default: 5.000000 -STYLE:<str> Style Choice Available Choices: [0] one [1] two Default: 0