StraboTools
Free
1.5for iPhone, iPad and more
9.9
9 Ratings
The University of Kansas
Developer
14.6 MB
Size
Aug 30, 2023
Update Date
Education
Category
4+
Age Rating
Age Rating
StraboTools Screenshots
About StraboTools
StraboTools is designed to aid geologic field work by providing quantitative data that are otherwise difficult to estimate in the field. The app was developed for work in plutonic rocks such as granite, but it can be useful in field work in any type of rock and for study of thin sections as well. The app analyzes a photograph taken within the app or imported into it.
•The Edge Fabric tool plots an ellipse that summarizes the orientations of image brightness gradients. In rocks with a fabric produced by deformation, this ellipse provides the orientation of the fabric and an axial ratio, which correlates with bulk deformation. The tool also reports the orientation in space of the line defined by the long axis of the ellipse. If, for example, the fabric being measured is planar, then these intersection lineations will lie on a great circle. Edge fabric diagrams are useful both in the field and for analysis of photomicrographs.
•The Color Index tool allows quantitative determination of the color index (CI; area percent dark minerals) from a photograph. The user takes a photograph and then moves a slider to highlight those pixels darker than a certain threshold. The resulting area percent is displayed. Both adaptive and full-image thresholding are available.
•Edge Detect applies an edge detection filter to the image. This can be useful in highlighting subtle features in an outcrop and in interpreting edge fabric ellipses.
•The Edge Fabric tool plots an ellipse that summarizes the orientations of image brightness gradients. In rocks with a fabric produced by deformation, this ellipse provides the orientation of the fabric and an axial ratio, which correlates with bulk deformation. The tool also reports the orientation in space of the line defined by the long axis of the ellipse. If, for example, the fabric being measured is planar, then these intersection lineations will lie on a great circle. Edge fabric diagrams are useful both in the field and for analysis of photomicrographs.
•The Color Index tool allows quantitative determination of the color index (CI; area percent dark minerals) from a photograph. The user takes a photograph and then moves a slider to highlight those pixels darker than a certain threshold. The resulting area percent is displayed. Both adaptive and full-image thresholding are available.
•Edge Detect applies an edge detection filter to the image. This can be useful in highlighting subtle features in an outcrop and in interpreting edge fabric ellipses.
Show More
What's New in the Latest Version 1.5
Last updated on Aug 30, 2023
Old Versions
Added Modal Tool.
Added Spot Name and Notes Fields for better alignment with StraboSpot field app.
Updated StereoNet export for new data format.
Added Spot Name and Notes Fields for better alignment with StraboSpot field app.
Updated StereoNet export for new data format.
Show More
Version History
1.5
Aug 30, 2023
Added Modal Tool.
Added Spot Name and Notes Fields for better alignment with StraboSpot field app.
Updated StereoNet export for new data format.
Added Spot Name and Notes Fields for better alignment with StraboSpot field app.
Updated StereoNet export for new data format.
1.2
May 3, 2020
Improved Edge Fabric Functionality
Redesigned UI Layout for Smaller Devices
Edge Detect Enhanced for More Clarity
Redesigned UI Layout for Smaller Devices
Edge Detect Enhanced for More Clarity
1.1
Mar 3, 2020
This version has several bug fixes, including the fix of crashes due to Location Services being unavailable.
1.0
Feb 25, 2020
StraboTools FAQ
Click here to learn how to download StraboTools in restricted country or region.
Check the following list to see the minimum requirements of StraboTools.
iPhone
Requires iOS 12.0 or later.
iPad
Requires iPadOS 12.0 or later.
iPod touch
Requires iOS 12.0 or later.
StraboTools supports English