identify.lintess: Interactively Identify Tiles of a Tessellation on a Network

In spatstat.linnet: Linear Networks Functionality of the 'spatstat' Family

Interactively Identify Tiles of a Tessellation on a Network

Description

If a tessellation on a linear network is plotted in the graphics window, then each time the left mouse button is pressed, this function will find the tile which contains the mouse position, print the serial number of the tile containing this position, and draw the tile in a different colour.

Usage

  ## S3 method for class 'lintess'
identify(x, ..., labels=tilenames(x),
                             n=nobjects(x), plot=TRUE, paint=plot,
                             paint.args=list())

Arguments

x	A tessellation on a linear network (object of class "lintess").
...	Arguments passed to identify.default.
labels	Labels associated with the tiles of the tessellation, to be plotted when the tiles are identified. A character vector or numeric vector of length equal to the number of tiles of x.
n	Maximum number of tiles to be identified.
plot	Logical. Whether to plot the labels when a tile is identified.
paint	Logical. Whether to redraw each identified tile, using a different colour.
paint.args	Optional list of arguments passed to plot.psp determining the colour and style in which each identified tile will be redrawn, if paint=TRUE.

Details

This is a method for the generic function identify for tessellations on a linear network.

The tessellation x, or the underlying network, should first be plotted using plot.lintess or plot.linnet.

Then identify(x) reads the position of the graphics pointer each time the left mouse button is pressed. It then determines which tile of x contains the mouse position. The index of this tile will be returned as part of the value of the call.

Each time a tile is identified, text will be displayed alongside the tile showing the name of the tile, and the tile will be re-drawn in a different colour.

The procedure terminates when the right mouse button is pressed.

Value

A data.frame with columns id and name containing the serial numbers and names of the tiles of x that were identified, in the order that they were identified; If x is marked, subsequent columns contain the marks for these tiles.

Author(s)

\spatstatAuthors

.

See Also

identify, plot.lintess, plot.psp

spatstat.linnet documentation built on Aug. 8, 2025, 6:35 p.m.