File:Regular polygon 18 annotated.svg

Original file (SVG file, nominally 507 × 515 pixels, file size: 26 KB)

Summary

Description
English: Regular octadecagon with annotation.
Date
Source Own work
Author László Németh
Other versions
SVG development
InfoField
 
The SVG code is valid.
 
This geometry was created with OpenOffice.org.
; Created in LibreOffice 4 with this LibreLogo program.
; Usage: Copy it in an English language document in LibO Writer,
; and click on the Start icon of the View»Toolbar»Logo toolbar.
FONTSIZE 22 FONTFAMILY “Nimbus Sans L”
FOR vertices IN [3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20] [
;    PICTURE “regular_polygon_%d_annotated.svg” % vertices [ ; from LibO 4.1.1
    PICTURE [
	HOME CLEARSCREEN HIDETURTLE
	FILLCOLOR “WHITE” PENCOLOR “SILVER” 
	PENDOWN PENSIZE 2 CIRCLE 400
	β = 360/vertices
	CIRCLE [80 + vertices * 10, 80 + vertices * 10, 0, β]
	FONTCOLOR “SILVER”
	IF vertices >= 18 [ f = 0.011 ] [ f = 0.013 ]
	HEADING β*0.57 PENUP FORWARD (80 + vertices * 10) * (0.23 + (f * vertices))
	HEADING 0 LABEL “%d°” % β
	HOME HEADING 0 PENDOWN
	dots = []
	REPEAT vertices [
		FORWARD 200
		where = POSITION
		dots = dots + [where]
		BACK 200 RIGHT β
	]
	HOME
	PENSIZE 2 CIRCLE 10
	PENCOLOR “BLACK” FONTCOLOR “BLACK”
	α = ((vertices-2)/vertices)*180
	PENUP FORWARD 200 PENDOWN
	CIRCLE [90 + 105/vertices, 90 + 105/vertices, 180 – α/2, 180 + α/2]
	PENUP BACK 20 + 70/vertices LABEL “%d°” %  α
	HOME PENUP PENSIZE 4 PENUP
	FOR i IN dots + dots[0:1] [ POSITION i PENDOWN ] PENSIZE 2
	FOR i IN dots [ PENUP POSITION i PENDOWN CIRCLE 10 ]
    ]
]

Licensing

László Németh, the copyright holder of this work, hereby publishes it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

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17 July 2013

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Date/TimeThumbnailDimensionsUserComment
current21:16, 18 July 2013Thumbnail for version as of 21:16, 18 July 2013507 × 515 (26 KB)Nl74valid SVG
13:33, 17 July 2013Thumbnail for version as of 13:33, 17 July 2013508 × 515 (26 KB)Nl74User created page with UploadWizard

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