File:VFPt Earths Magnetic Field Confusion.svg

Original file(SVG file, nominally 320 × 300 pixels, file size: 30 KB)


English: Magnetic field around a spherical dipole magnet like the earth with a schematic dipole magnet drawn to its center.
Source Own work
Author Geek3
Other versions

Earths Magnetic Field Confusion.svg

SVG development
VectorFieldPlot symbol.svg
This plot was created with VectorFieldPlot.


VectorFieldPlot source code
# paste this code at the end of VectorFieldPlot 1.3
doc = FieldplotDocument('VFPt_Earths_Magnetic_Field_Confusion',
    commons=True, width=320, height=300, unit=15)
phi = radians(-70.0)
r = 1.0
field = Field({'coils':[[0, 0, phi, r, 2*r, 1]]})
n = 11
for i in range(n):
    a = -1.0 + 2.0 * (i + 0.5) / n
    line = FieldLine(field, [sin(phi)*a*r, -cos(phi)*a*r], directions='both', maxr=30)
    doc.draw_line(line, linewidth=2, arrows_style={'dist':10, 'scale':1.2,
        'max_arrows':2, 'min_arrows':1, 'offsets':[0.6, 0.5, 0.5, 0.6]})
doc.draw_object('circle', {'r':'6', 'cx':'0', 'cy':'0',
    'style':'fill:#add8e6; stroke:#0000ff; stroke-width:0.066667; opacity:0.4'})

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current20:59, 13 December 2010Thumbnail for version as of 20:59, 13 December 2010320 × 300 (30 KB)Geek3own work
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