Log Viewer

This log viewer is a general purpose tool for viewing time series data. We needed a way to easily plot and scale serial port data for numerous embeded projects.

Download:

LogViewer V3 for Windows

Screenshot of Logviewer examining a MFTS log

Getting Started

TBD

Features

Load Data

Software will load *.txt, *.csv and *.log files with commas or spaces as delimiters. No limit for how many data categories.

AUTOSCALE

Checking the autoscale function will try to make the data readable by normalizing it to [0,100]. Data with nevative values will be normalized to [-100,100]. The scaling factor will be displayed and can be edited by the user individually for each data category.

SCROLL

Checking the scroll function will limit the x-value on the display to n number of points, making it easier to view a sliding window of data points.

Data Format

Data-Formats can be loaded and saved. A data format contains all of the scaling values and names of each column.

Changelog

V4 (Work in progress)

Added support for .csv and .log files
On-click display x-value and delta x
Left/Right (+Ctrl) arrow steps vertical marker
Added horizontal scroll bar for data categories
Add style selection (default, scope, etc.)
Merged LogViewer.pyw as a class within PlotViewer
Built-in right-click pan without needing to click navigation toolbar
Convert logformat to JSON loader
Added "open recent" for log files

V3

Added individual labels, scale and offset for each plot
Added support to load/save all of the above settings
Locked legend to one side
Added built-in data loading function
Improved data processing including variable delimiter
Added search feature for log events
Lines now retain their color when toggling them on and off
Added Delta numbers for measurement lines (Ctrl + click)
Remember last directory (via log)
Supports Linux native file dialog

V2

Added scrolling
Added vertical line on click with data display

Planned Additions

Custom delimiter list