CERN home page CERN home page Consult pages Consult pages Writeups at CERN Writeups at CERN Garfield pages Garfield pages Help Help Call Call This page This page Table of contents Keyword index

Call: PLOT_CONTOURS


matrix

The matrix to be plotted.

This matrix should be 2-dimensional, and have a length of at least 2 in both directions. In the descriptions, the first index of the matrix will be written x, the second y.

The overall size of the matrix is limited to an amount that depends on the graphics system used (NAG or HIGZ) but is in both cases very large (around 10000 words at least).


n_contours

Number of contours to be drawn. If the ROUND option is used, this number is used as an indication only - the actual number will usually be larger.

The permissible range depends on the underlying graphics system, but usually covers [2,50].


options

A string containing options chosen from the following list. Most options are only applicable to one graphics system and are neglected on the others.

Option Effect Notes
POLAR Polar coordinate system Not with HIGZ
CARTESIAN Cartesian coordinate system -
ROUND Select nearest round numbers for contour heights -
LABEL Labels the contours Not with HIGZ
COLOUR Produces a colour map, or colours the contours Not with NAG
TYPE Distinguish the contours by line type Not with NAG


x-vector

Vector with the x-coordinates of the matrix.

Only the first and last element are used to set the scale along the x-axis of the plot.

If omitted, a range of [0, 1] is assumed.


y-vector

Vector with the y-coordinates of the matrix.

Only the first and last element are used to set the scale along the x-axis of the plot.

If omitted, a range of [0, 1] is assumed.


x-label

A string to be placed along the x-axis.

If omitted, the name of the global variable associated with x-vector is used, if there is one, otherwise the string 'x-axis' is taken.


y-label

A string to be placed along the y-axis.

If omitted, the name of the global variable associated with y-vector is used, if there is one, otherwise the string 'y-axis' is taken.


title

A string to be placed above the plot.

If omitted, the name of the global variable associated with matrix is used, if there is one, otherwise the title is left blank.


Go to the top level, to Call, to PLOT_CONTOURS, to the topic index or to the table of contents.

Formatted on 0100-08-27 at 04:53.