File:VFPt charges plus minus.svg
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Size of this PNG preview of this SVG file: 800 × 600 pixels. Other resolutions: 320 × 240 pixels | 640 × 480 pixels | 1,024 × 768 pixels | 1,280 × 960 pixels | 2,560 × 1,920 pixels.
Original file (SVG file, nominally 800 × 600 pixels, file size: 27 KB)
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This is a file from the Wikimedia Commons |
Summary
| Description |
English: Field of a positive and a negative point charge |
| Date | |
| Source | Own work |
| Author | Geek3 |
| Other versions | VFPt charges plus minus thumb.svg (thumbnail version) |
| SVG development |  This plot was created with VectorFieldPlot. |
| Source code | Python code# paste this code at the end of VectorFieldPlot 3.0
doc = FieldplotDocument('VFPt_charges_plus_minus', commons=True)
field = Field([['monopole', {'x':-1, 'y':0, 'Q':1}],
['monopole', {'x':1, 'y':0, 'Q':-1}]])
doc.draw_charges(field)
n = 16
for i in range(n):
a = 2.0 * pi * (0.5 + i) / n
line = FieldLine(field, [-1,0], start_v=[cos(a), sin(a)],
directions='forward')
doc.draw_line(line, arrows_style={'dist':1.6, 'min_arrows':1,
'fixed_ends':[True, False, False, True]})
doc.write()
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Licensing
I, the copyright holder of this work, hereby publish it under the following licenses:
|
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. |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- 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.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
You may select the license of your choice.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:30, 27 March 2020 | | 800 × 600 (27 KB) | Geek3 | I appreciate the compression. However, 19kB 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 was in fact more precise than the simplified version with Beziers. Note e.g. that the arrows should be centered on each line. |
| 22:48, 29 February 2020 |  | 800 × 600 (3 KB) | Jarvisa | Simplified SVG source | |
| 14:06, 29 April 2017 |  | 800 × 600 (22 KB) | Geek3 | validator fix | |
| 18:05, 31 May 2010 |  | 800 × 600 (22 KB) | Geek3 | VFPt_charges_plus_minus |
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