C = contourc(Z)
C = contourc(Z,n)
C = contourc(Z,v)
C = contourc(x,y,Z)
C = contourc(x,y,Z,n)
C = contourc(x,y,Z,v)
contourc
calculates the contour matrix C
used by the M-file contour
to draw actual contour plots.
C = contourc(Z)
computes the contour matrix for a contour plot of matrix Z
. The contours are level lines in the units of Z
. The number of contour lines and their corresponding values are chosen automatically by contourc
.
C = contourc(Z,n)
computes contours of matrix Z
with n
contour levels.
C = contourc(Z,v)
computes contours of Z
with contour levels at the values specified in vector v
.
C = contourc(x,y,Z)
, C
=
contourc(x,y,Z,n)
, and C = contourc(x,y,Z,v)
compute contours of Z
and use the data in vectors x
and y
to control the axis scaling on the x- and y-axes. The elements of x
and y
are equally spaced.
The contour matrix C
is a two-row matrix of contour lines. Each contiguous drawing segment contains the value of the contour, the number of (x,y)
drawing pairs, and the pairs themselves. The segments are appended end-to-end,
C = [level1 x1 x2 x3...level2 x2 x2 x3...;
pairs1 y1 y2 y3...pairs2 y2 y2 y3...]
contourc
assumes that vectors x
and y
are monotonically increasing. If x
and y
are irregularly spaced, the contours are simply stretched apart, which is not the same as contouring the irregularly spaced data.
contour
,contour3
(c) Copyright 1994 by The MathWorks, Inc.