Re: How to show PolarPlot with circles coordinate

*To*: mathgroup at smc.vnet.net*Subject*: [mg90089] Re: How to show PolarPlot with circles coordinate*From*: "David Park" <djmpark at comcast.net>*Date*: Sat, 28 Jun 2008 05:53:58 -0400 (EDT)*References*: <g42erp$nor$1@smc.vnet.net>

The Presentations package has a DrawPolarGrid command. The user can control the angular and radial ranges, subdivisions and labeling. The following draws a polar curve on top of a polar grid. ComplexPolar[r,theta] is a Presentations expression for representing complex numbers in polar form and is usesful for making many plots. Needs["Presentations`Master`"] f[\[Theta]_] := 5 + 2 Sin[\[Theta]] + Sin[2 \[Theta] + \[Pi]] + Sin[5 \[Theta] + \[Pi]/4] Draw2D[ {DrawPolarGrid[{ComplexPolar[0, 0 =B0], ComplexPolar[10, 360 =B0], ComplexPolar[5, 45 =B0], {5, 5}}], Red, PolarDraw[f[\[Theta]], {\[Theta], 0, 2 \[Pi]}]}, PlotRangePadding -> 1, PlotLabel -> f[\[Theta]], ImageSize -> 300] This particular polar grid goes from 0 < r < 10 and 0 Degree < theta < 360 Degree with labeled positions spaced by delta r = 5 and delta theta == 45 Degree. There are 5 subdivisions in both the r and theta directions. The labeled coordinates are drawn with black lines and the subdivisions are drawn with very faint gray lines. -- David Park djmpark at comcast.net http://home.comcast.net/~djmpark/ "Galaxia" <forgalaxia at gmail.com> wrote in message news:g42erp$nor$1 at smc.vnet.net... > The PolarPlot of Mathematica gives still the X-Y axes coordinate. Is > there any way to plot the figure with coordinate system with rays and > circle target? Thanks. >