polarplot
polarplot — Plot polar coordinates
Calling sequence
polarplot(theta,rho,[style,strf,leg,rect])
polarplot(theta,rho,<opt_args>)
Parameters
| rho | : a vector, the radius values |
| theta | : a vector with same size than rho, the angle values. |
| <opt_args> | : a sequence of statements key1=value1, key2=value2, ... where keys may be style,leg,rect,strf or frameflag |
| style | : is a real row vector of size nc. The style to use for curve i is defined by style(i). The default style is 1:nc (1 for the first curve, 2 for the second, etc.). | - | if style(i) is negative, the curve is plotted using the mark with id abs(style(i))+1; use xset() to see the mark ids. | | - | if style(i) is strictly positive, a plain line with color id style(i) or a dashed line with dash id style(i) is used; use xset() to see the color ids. | | - | When only one curve is drawn, style can be the row vector of size 2 [sty,pos] where sty is used to specify the style and pos is an integer ranging from 1 to 6 which specifies a position to use for the caption. This can be useful when a user wants to draw multiple curves on a plot by calling the function plot2d several times and wants to give a caption for each curve. |
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| strf | : is a string of length 3 "xy0". | default | The default is
"030". | | x | : controls the display of captions, | x=0 | : no captions. | | x=1 | : captions are displayed. They are given by the optional argument leg. |
| | y | : controls the computation of the frame. same as frameflag | y=0 | : the current boundaries (set by a previous call to another high level plotting function) are used. Useful when superposing multiple plots. | | y=1 | : the optional argument rect is used to specify the boundaries of the plot. | | y=2 | : the boundaries of the plot are computed using min and max values of x and y. | | y=3 | : like y=1 but produces isoview scaling. | | y=4 | : like y=2 but produces isoview scaling. | | y=5 | : like y=1 but plot2d can change the boundaries of the plot and the ticks of the axes to produce pretty graduations. When the zoom button is activated, this mode is used. | | y=6 | : like y=2 but plot2d can change the boundaries of the plot and the ticks of the axes to produce pretty graduations. When the zoom button is activated, this mode is used. | | y=7 | : like y=5 but the scale of the new plot is merged with the current scale. | | y=8 | : like y=6 but the scale of the new plot is merged with the current scale. |
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| leg | : a string. It is used when the first character x of
argument strf is 1. leg has the
form "leg1@leg2@...." where
leg1, leg2, etc. are respectively
the captions of the first curve, of the second curve, etc.
The default is " ". |
| rect | : This argument is used when the second character y of argument strf is 1, 3 or 5. It is a row vector of size 4 and gives the dimension of the frame: rect=[xmin,ymin,xmax,ymax]. |
Description
polarplot creates a polar coordinate plot of the angle theta
versus the radius rho. theta is the angle from the x-axis to the
radius vector specified in radians; rho is the length of the radius
vector specified in dataspace units.
Examples
t= 0:.01:2*%pi;
xbasc();polarplot(sin(7*t),cos(8*t))
xbasc();polarplot([sin(7*t') sin(6*t')],[cos(8*t') cos(8*t')],[1,2])
