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    <title>MaplePrimes - answers and comments on Question, Cylindrical fieldplot3d</title>
    <link>http://www.mapleprimes.com/questions/123842-Cylindrical-Fieldplot3d</link>
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    <lastBuildDate>Sat, 13 Jun 2026 06:54:00 GMT</lastBuildDate>
    <pubDate>Sat, 13 Jun 2026 06:54:00 GMT</pubDate>
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    <description>The latest answers and comments added to the Question, Cylindrical fieldplot3d</description>
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      <title>MaplePrimes - answers and comments on Question, Cylindrical fieldplot3d</title>
      <link>http://www.mapleprimes.com/questions/123842-Cylindrical-Fieldplot3d</link>
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    <item>
      <title>possibility</title>
      <link>http://www.mapleprimes.com/questions/123842-Cylindrical-Fieldplot3d?ref=Feed:MaplePrimes:Cylindrical fieldplot3d:Comments#answer123847</link>
      <itunes:summary>&lt;p&gt;Do you mean something like this?&lt;/p&gt;
&lt;pre&gt;with(plots):with(VectorCalculus):with(plottools):

SetCoordinates(cartesian[r,phi,z]):

fld := VectorField(Vector([r,z,phi])):

F:=fieldplot3d(fld,0..1,0..2*Pi,0..1,
               lightmodel=light2,axis[3]=[location=origin],
               axes=normal,thickness=2):

display(changecoords(F,cylindrical),
        transform((x,y)-&amp;gt;[x,y,0])(coordplot(polar,labelling=true,
                                            scaling=constrained)));
&lt;/pre&gt;
&lt;p&gt;I guess that the axis[3]=[location=origin] option is not necessary there, although it can make a contribution to this (which doesn't seem to be the coordinate system you want):&lt;/p&gt;
&lt;pre&gt;restart:
with(plots):with(VectorCalculus):with(plottools):
SetCoordinates(cylindrical[r,phi,z]):
fld := VectorField(Vector([r,z,phi])):
fieldplot3d(fld,0..1,0..2*Pi,0..1,
               lightmodel=light2,axis[3]=[location=origin],
               axes=normal,thickness=2);
&lt;/pre&gt;</itunes:summary>
      <description>&lt;p&gt;Do you mean something like this?&lt;/p&gt;
&lt;pre&gt;with(plots):with(VectorCalculus):with(plottools):

SetCoordinates(cartesian[r,phi,z]):

fld := VectorField(Vector([r,z,phi])):

F:=fieldplot3d(fld,0..1,0..2*Pi,0..1,
               lightmodel=light2,axis[3]=[location=origin],
               axes=normal,thickness=2):

display(changecoords(F,cylindrical),
        transform((x,y)-&amp;gt;[x,y,0])(coordplot(polar,labelling=true,
                                            scaling=constrained)));
&lt;/pre&gt;
&lt;p&gt;I guess that the axis[3]=[location=origin] option is not necessary there, although it can make a contribution to this (which doesn't seem to be the coordinate system you want):&lt;/p&gt;
&lt;pre&gt;restart:
with(plots):with(VectorCalculus):with(plottools):
SetCoordinates(cylindrical[r,phi,z]):
fld := VectorField(Vector([r,z,phi])):
fieldplot3d(fld,0..1,0..2*Pi,0..1,
               lightmodel=light2,axis[3]=[location=origin],
               axes=normal,thickness=2);
&lt;/pre&gt;</description>
      <guid>123847</guid>
      <pubDate>Thu, 14 Jul 2011 06:09:18 Z</pubDate>
      <itunes:author>Pseudomodo</itunes:author>
      <author>Pseudomodo</author>
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    <item>
      <title>Looks nice!</title>
      <link>http://www.mapleprimes.com/questions/123842-Cylindrical-Fieldplot3d?ref=Feed:MaplePrimes:Cylindrical fieldplot3d:Comments#comment123856</link>
      <itunes:summary>&lt;p&gt;That helped alot already. Now I understand the command "transform". One can even add one polar on the top of the cylinder. like:&lt;/p&gt;
&lt;p&gt;display(transform((x,y)-&amp;gt;[x,y,0])(coordplot(polar)),transform((x,y)-&amp;gt;[x,y,-3])(coordplot(polar)));&lt;br&gt;&lt;br&gt;&lt;/p&gt;</itunes:summary>
      <description>&lt;p&gt;That helped alot already. Now I understand the command "transform". One can even add one polar on the top of the cylinder. like:&lt;/p&gt;
&lt;p&gt;display(transform((x,y)-&amp;gt;[x,y,0])(coordplot(polar)),transform((x,y)-&amp;gt;[x,y,-3])(coordplot(polar)));&lt;br&gt;&lt;br&gt;&lt;/p&gt;</description>
      <guid>123856</guid>
      <pubDate>Thu, 14 Jul 2011 11:40:07 Z</pubDate>
      <itunes:author>xaratustra</itunes:author>
      <author>xaratustra</author>
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