Re: how to orient Polar Plot 0 Degrees at the North Pole

*To*: mathgroup at smc.vnet.net*Subject*: [mg128820] Re: how to orient Polar Plot 0 Degrees at the North Pole*From*: "djmpark" <djmpark at comcast.net>*Date*: Thu, 29 Nov 2012 06:01:46 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*Delivered-to*: l-mathgroup@wolfram.com*Delivered-to*: mathgroup-newout@smc.vnet.net*Delivered-to*: mathgroup-newsend@smc.vnet.net*References*: <18362751.6152.1354090949486.JavaMail.root@m06>

And do you want positive angles on the right or on the left? If on the right you have to reflect your data about 0 degrees and then rotate it by 90 degrees. Then the Presentations application has a DrawPolarGrid primitive that allows quite a bit of adjustment in the labeling. The following is the form of just such a Northward plot I recently helped a customer with. <<Presentations` Draw2D[ {DrawPolarGrid[ {ComplexPolar[0, 0 \[Degree]], ComplexPolar[30., 180 \[Degree]], ComplexPolar[5., 15 \[Degree]], {1, 1}}, PGMajorStyle -> Directive[GrayLevel[.7]], PGRadiusNumberFunction -> (# - 30 &), PGAngleNumberFunction -> (-# + 90 \[Degree] &), PGLabelAxis -> 90 \[Degree]], Red, PolarDraw[f[\[Theta]], {\[Theta], \[Theta]min, \[Theta]max}], Black, Text[Style["dB", 12], {20, -3}]}, AspectRatio -> Automatic, Frame -> None, PlotRange -> {{-35, 40}, {0, 30}}, PlotRangePadding -> 5, ImageSize -> 600] // Framed[#, FrameStyle -> GrayLevel[0.7]] & // Labeled[#, Style["Making a Northward Facing Polar Plot", 14, FontFamily -> "Times"], {{Bottom, Left}}] & David Park djmpark at comcast.net http://home.comcast.net/~djmpark/index.html From: mathgroup [mailto:fizzymath at knology.net] Sometimes I want the 0 Degree direction of PolarPlot to be at the North Pole......I have been able to do this by applying Rotate to the PolarPlot, e.g.... Rotate[PolarPlot[expr...],Pi/2] but this also Rotates the numbers for the Degrees, etc. which I don't want..... is there another way ?....I looked at the Options to see if there was one which allowed you to do this but, if there is such an Option, I didn't see it.... Thanks.....Jerry Blimbaum