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File:VFPt charges plus minus thumb.svg

Ifayela ewu ngqo ‎(SVG file, nominally 220 × 165 pixels, file size: 18 KB)

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Isifinyezo

Incazelo
English: Field of a positive and a negative point charge. Thumbnail version
Usuku
Umthombo Own work
Umlobi Geek3
Other versions

VFPt charges plus minus.svg (full size version)

VFPt_charges_plus_minus_thumb_potential.svg (with electric potential)
SVG genesis
InfoField
 
The SVG code is valid.
 
This vector image was created with Inkscape, or with something else.

Quality image

This image has been assessed using the Quality image guidelines and is considered a Quality image.

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Umkitizo
InfoField

SVG code

# paste this code at the end of VectorFieldPlot 2.5
doc = FieldplotDocument('VFPt_charges_plus_minus_thumb',
    width=220, height=165, unit=30., commons=True)
field = Field([['monopole', {'x':-1, 'y':0, 'Q':1}],
    ['monopole', {'x':1, 'y':0, 'Q':-1}]])
doc.draw_charges(field, scale=11./14.)
n = 16
for i in range(n):
    a = 2.0 * pi * (0.5 + i) / n
    if abs(i - (n-1)/2.) > 6:
        fix = {'start':False, 'leave_image':False, 'enter_image':False, 'end':False}
    else:
        fix = {'start':True, 'leave_image':False, 'enter_image':False, 'end':True}
    line = FieldLine(field, [-1,0], start_v=[cos(a), sin(a)],
        directions='forward')
    doc.draw_line(line, linewidth=1.0, arrows_style={
        'dist':1.6, 'min_arrows':1, 'offsets':
        {'start':.65,'leave_image':.5,'enter_image':.5,'end':.65},
        'fixed_ends':fix, 'scale':1.4})
doc.write()


Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
w:en:Creative Commons
attribution yabelana ngokufana
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Ukhululekile:
  • ukwabelana – to copy, distribute and transmit the work
  • to remix – to adapt the work
Ngaphansi kwezimo ezilandelayo:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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Captions

Add a one-line explanation of what this file represents
Electric field of two opposite charges

Items portrayed in this file

depicts i-English

dipole i-English

creator i-English

some value

author name string i-English: Geek3
Wikimedia username i-English: Geek3
URL i-English: http://commons.wikimedia.org/wiki/User:Geek3

copyright status i-English

copyrighted i-English

inception i-English

uNhlaba 2010

MIME type i-English

image/svg+xml

Umlando womqulu

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Usuku/IsikhathiIsithonjanaDimensionsUmsebenzisiAmazwana
Njengamanje19:12, 14 uNdasa 2020Isithonjana senguquko eyenziwa nge-19:12, 14 uNdasa 2020220 × 165 (18 KB)Geek3I appreciate the compression. However, 18kB savings in the source code are no relevant advantage. The original image has a clear internal structure for simple reusability. It contains useful meta information. The approximation of lines by straight segments is the most simple one, and it is more precise than the "simplified" version with Beziers. Note e.g. that the arrows should be centered on each line.
19:41, 21 uNhlolanja 2020Isithonjana senguquko eyenziwa nge-19:41, 21 uNhlolanja 2020220 × 165 (3 KB)JarvisaSimplified SVG source
22:43, 7 uMandulo 2019Isithonjana senguquko eyenziwa nge-22:43, 7 uMandulo 2019220 × 165 (21 KB)Geek3validator fix
20:24, 6 uNhlangulana 2010Isithonjana senguquko eyenziwa nge-20:24, 6 uNhlangulana 2010220 × 165 (21 KB)Geek3VFPt_charges_plus_minus_thumb

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