contour.im

From spatstat v1.11-2 by Adrian Baddeley

Contour plot of pixel image

Generates a contour plot of a pixel image.

Keywords: hplot, spatial

Usage

## S3 method for class 'im':
contour(x, \dots, main, axes=TRUE, add=FALSE)

Arguments

x: Pixel image to be plotted. An object of class "im".
main: Character string to be displayed as the main title.
axes: Logical. If TRUE, coordinate axes are plotted (with tick marks) around a region slightly larger than the image window. If FALSE, no axes are plotted, and a box is drawn tightly around the image window. Ignored if
add: Logical. If FALSE, a new plot is created. If TRUE, the contours are drawn over the existing plot.
...: Other arguments passed to contour.default controlling the contour plot; see Details.

Details

This is a method for the generic contour function, for objects of the class "im". An object of class "im" represents a pixel image; see im.object.

This function displays the values of the pixel image x as a contour plot on the current plot device, using equal scales on the $x$ and $y$ axes.

The appearance of the plot can be modified using any of the arguments listed in the help for contour.default. Useful ones include: [object Object],[object Object],[object Object] See contour.default for a full list of these arguments.

The defaults for any of the abovementioned arguments can be reset using spatstat.options.

Value

none.

Examples

# an image
   Z <- setcov(owin())
   contour(Z)
   contour(Z, axes=FALSE)

Documentation reproduced from package spatstat, version 1.11-2, License: GPL version 2 or newer

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