labelmaker 0.2.0

Simple labeling tool for segyio files

# Labelmaker #

The Labelmaker tool provides a method to categorize layers in seismic data. The tool uses segyio to read seismic data and Matplotlib to produce the graphical overview to the user.

The user draws an area (polygon) containing the layer at hand and selects the type.

### Command line arguments:

`-d` or `--compare`: Specify overlay results. Previously exported segy results

from the labelmaker may be added with this argument. In such case the results will overlay the inputfile and it will not be possible to create new polygons.

`-t` or `--threshold`: Set point selection sensitivity. The setting impacts the

radius when selecting points to move. Default: 0.01.

`-p` or `--prefix`: File path prefix for exported results.

Default:’Labelmade-‘.

Mouse shortcuts:

`<Left Mousebutton>` Creates a point in the plot. Further addition of points

creates a line between the points.

### Keyboard shortcuts:

`<enter>` Draws a polygon based on the points selected by the user. Also resets

the points in the line, such that the next point created by clicking the mousebutton starts on a new line.

`<escape>` Clear drawn points.

`<z>` Undo last created point.

`<d>` Removes the polygon which the cursor currently hovers. This action

will do nothing if the cursor is not hovering a polygon.

`<u>` Undo deletion of last polygon. This action will only add the latest

removed polygon.

`<e>` Export the results. The Labelmaker creates a new segy file with the

same headers, text content and dimensions as the input file. The segy file contains 0-values for all coordinates outside of any drawn polygon. Depending on the type chosen by the user, the coordinates within polygons will have values from 1 to n.