NAME
g.gui.tplot - Plots the values of temporal datasets.
KEYWORDS
general,
GUI,
temporal,
plot
SYNOPSIS
g.gui.tplot
g.gui.tplot --help
g.gui.tplot [-hl] [stvds=name[,name,...]] [strds=name[,name,...]] [coordinates=east,north] [cats=string] [attr=string] [output=name] [csv=name] [title=string] [xlabel=string] [ylabel=string] [size=string] [--overwrite] [--help] [--verbose] [--quiet] [--ui]
Flags:
- -h
- Set the header of CSV file, to be used with csv option
- -l
- Show simple linear regression model line
- --overwrite
- Allow output files to overwrite existing files
- --help
- Print usage summary
- --verbose
- Verbose module output
- --quiet
- Quiet module output
- --ui
- Force launching GUI dialog
Parameters:
- stvds=name[,name,...]
- Name of the input space time vector datasets
- strds=name[,name,...]
- Name of the input space time raster datasets
- coordinates=east,north
- Coordinates
- cats=string
- Categories of vectores features
- To use only with stvds
- attr=string
- Name of attribute
- Name of attribute which represent data for plotting
- output=name
- Name for output graphical file
- Full path for output file containing the plot, ddd extension to specify format (.png, .pdf, .svg)
- csv=name
- Name for output CSV file
- Full path for the CSV file containing the plotted data
- title=string
- Title for plot
- The title for the output plot
- xlabel=string
- Label for x axis
- The x axis label for the output plot
- ylabel=string
- Label for y axis
- The y axis label for the output plot
- size=string
- The size for output image
- It works only with output parameter
The
Temporal Plot Tool is a
wxGUI
component that queries and plots the values of a point, defined by a coordinate
pair, in one or more temporal datasets (strds, stvds, str3ds).
Supported features:
- temporal datasets with interval/point and absolute/relative time,
- show simple linear regression model line with calculated formula
y = a + b*x (y is dependent variable, a is intercept, b is slope, x is explanatory variable)
and
r-squared (parameter of goodness-of-fit measure for linear regression model)
- pop-up annotations with values information,
- query and plot multiple points via the command line,
- zoom and pan,
- change labels to x and y axes,
- add title to the plot, and
- export the time series values to a CSV file (x axis data has date time string format,
if you want to use for calculating simple regression model in the
R environment,
LibreOffice
etc., you will obtain a different calculated formula
y = a + b*x
because these software packages use a reference date other than
the UNIX Epoch time (00:00:00 UTC on 1 January 1970)).
Figure: Temporal Plot Tool
To optionally add a title to the temporal plot and/or change the x and y
axes labels, first type the desired text and then click
Draw as
showed below.
Figure: Add title and labels to a time series plot
To export the time series data to a text file (date and data values), type a
name for the file and click
Draw again. Optionally, set the
check-box to print headers, as well.
Figure: Export time series values to a text file
g.gui.tplot requires the Python plotting library
Matplotlib.
Temporal data processing
wxGUI
wxGUI components
Luca Delucchi,
Fondazione Edmund Mach, Italy
SOURCE CODE
Available at:
wxGUI Temporal Plot Tool source code
(history)
Latest change: Saturday Jul 16 18:18:43 2022 in commit: 1961472afeb7633c9b744b0a60c923fb9b1d4411
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GRASS Development Team,
GRASS GIS 8.3.dev Reference Manual