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File:Logarithmic spiral.svg

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Original file (SVG file, nominally 510 × 400 pixels, file size: 2 KB)

Summary

Description
English: Logarithmic spiral.
Français : Spirale logarithmique.
Italiano: Spirale logaritmica.
Deutsch: Logarithmische Spirale.
Date
Source

Own work

Made using gnuplot (script below), minor fixes in Inkscape. Reworked using cubic bézier curves.
Author Leafnode
Permission
(Reusing this file)		 public domain


This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Use cubic bézier curves instead of polygons.

Gnuplot script

# Output to svg file:
set terminal svg size 1024 768
set output "logarithmic_spiral.svg"

# Same scale for both axes, half-size output:
set size ratio -1 0.5, 0.5

# More sample points to produce smoother picture:
set samples 480

# Axes in the center, no tick marks:
set zeroaxis
unset xtics
unset ytics
unset border
set polar

plot [-4*pi:4*pi] [-8:10] [-8:6] 1.19**t notitle

Licensing

Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Captions

Logarithmic spiral.

Items portrayed in this file

depicts

inception

5 May 2008

media type

image/svg+xml

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current12:15, 21 August 2010Thumbnail for version as of 12:15, 21 August 2010510 × 400 (2 KB)Georg-JohannUse smooth curve with cubic béziers instead of polylines
05:47, 23 August 2009Thumbnail for version as of 05:47, 23 August 2009510 × 398 (8 KB)AnonMoosremoving non-functional code, cropping margins
09:16, 5 May 2008Thumbnail for version as of 09:16, 5 May 2008600 × 480 (11 KB)Leafnode
09:13, 5 May 2008Thumbnail for version as of 09:13, 5 May 2008600 × 480 (9 KB)Leafnode{{Information |Description=Logarithmic spiral |Source=własna praca |Date=5.05.2008 |Author= Leafnode |Permission=public domain |other_versions= }} Category:Gnuplot diagrams Category:Logarithmic spiral

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