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Forum: Fields: Magnetic and Otherwise
Re: Question Geant4 non-uniform magnetic field (Victor Bobrovnikov)
Re: Feedback Re: Geant4 non-uniform magnetic field (Gumplinger Peter)
Re: None Re: Geant4 non-uniform magnetic field (Victor Bobrovnikov)
Date: 23 Nov, 2011
From: John Apostolakis <John Apostolakis>

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Dear Victor,

The coordinates used for magnetic fields are all *global* coordinates.

Regards,

John

John Apostolakis
Email: john.apostolakis@cern.ch<mailto:john.apostolakis@cern.ch>
Office Tel:  +41-22-767-7239




On Nov 23, 2011, at 8:44 AM, Victor Bobrovnikov wrote:


*** Discussion title: Fields: Magnetic and Otherwise

Ok, I see :)

I guess, that I have to use the method "void GetFieldValue(const double
Point[3],double *Bfield ) const" - for describe my non-uniform field.

So next questions, coordinates "const double Point[3]" must be global
(for all world), or should I use the local coordinates of logical volume
in which I set this field ?

Victor

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<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=
1">
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space; ">
Dear Victor,
<div><br>
</div>
<div>The coordinates used for magnetic fields are all *global* coordinates.=
</div>
<div><br>
</div>
<div>Regards,</div>
<div><br>
<div apple-content-edited=3D"true"><span class=3D"Apple-style-span" style=
=3D"border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica;=
 font-style: normal; font-variant: normal; font-weight: normal; letter-spac=
ing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; tex=
t-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-s=
pacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertica=
l-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size=
-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span c=
lass=3D"Apple-style-span" style=3D"border-collapse: separate; color: rgb(0,=
 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; f=
ont-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2=
; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-s=
pace: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spaci=
ng: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-=
effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0p=
x; font-size: medium; ">
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; ">
<div>
<div>John</div>
<div><br>
</div>
<div>
<div apple-content-edited=3D"true"><span class=3D"Apple-style-span" style=
=3D"border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica;=
 font-style: normal; font-variant: normal; font-weight: normal; letter-spac=
ing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; tex=
t-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-s=
pacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertica=
l-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size=
-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; ">
<div>John Apostolakis</div>
<div>Email: <a href=3D"mailto:john.apostolakis@cern.ch">john.apostolakis@ce=
rn.ch</a></div>
<div>Office Tel: &nbsp;&#43;41-22-767-7239</div>
<div><br>
</div>
</span></div>
</div>
</div>
</div>
</span><br class=3D"Apple-interchange-newline">
</span><br class=3D"Apple-interchange-newline">
</div>
<br>
<div>
<div>On Nov 23, 2011, at 8:44 AM, Victor Bobrovnikov wrote:</div>
<br class=3D"Apple-interchange-newline">
<blockquote type=3D"cite">
<div><br>
*** Discussion title: Fields: Magnetic and Otherwise<br>
<br>
Ok, I see :)<br>
<br>
I guess, that I have to use the method &quot;void GetFieldValue(const doubl=
e<br>
Point[3],double *Bfield ) const&quot; - for describe my non-uniform field.<=
br>
<br>
So next questions, coordinates &quot;const double Point[3]&quot; must be gl=
obal<br>
(for all world), or should I use the local coordinates of logical volume<br=
>
in which I set this field ?<br>
<br>
Victor<br>
<br>
-------------------------------------------------------------<br>
Visit this GEANT4 at <a href=3D"http://hypernews.slac.stanford.edu">hyperne=
ws.slac.stanford.edu</a> message (to reply or unsubscribe) at:
<br>
<a href=3D"http://hypernews.slac.stanford.edu/HyperNews/geant4/get/emfields=
/186/1/1.html">http://hypernews.slac.stanford.edu/HyperNews/geant4/get/emfi=
elds/186/1/1.html</a>
<br>
</div>
</blockquote>
</div>
<br>
</div>
</body>
</html>

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