File:Nonagon annotated.svg
Summary
| Description |
English: Regular 9-gon with annotation + s. |
| Date | |
| Source | Own work |
| Author | László Németh |
| Other versions |
|
| SVG development | |
| Source code | LibreOffice code; Created in LibreOffice 4 with this LibreLogo program.
; Usage: Put this code into 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 ]
HOME HEADING β * 1.5 PENUP FORWARD 201
HEADING 0 CIRCLE 22 TEXT “s”
]
]
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Licensing
I, the copyright holder of this work, hereby publish it under the following license:
  |
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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