Small object format - Revision history

Neocaridina at 18:48, 20 January 2026

2026-01-20T18:48:53Z

← Older revision		Revision as of 18:48, 20 January 2026
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	[[Category:File formats]]		[[Category:File formats]]
	[[Category:Algorithms]]		[[Category:Algorithms]]
			__NOTOC__

Sokwe: replaced block with block


2024-12-15T04:02:27Z
replaced <code> block with <pre> block

				
				
				
				
				
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				Revision as of 04:02, 15 December 2024
				
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The following is a [[glider]] in SOF format: The following is a [[glider]] in SOF format:



<code> <pre>
3-12-0111. (Glider) !This is a glider 3-12-0111. (Glider) !This is a glider
</code> </pre>



==See also== ==See also==



Confocal: /* External links */ category
2023-03-24T06:55:20Z
External links:  category

				
				
				
				
				
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				Revision as of 06:55, 24 March 2023
				
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[[Category:Everything else]] [[Category:Everything else]]
[[Category:File formats]] [[Category:File formats]]
[[Category:Algorithms]]



Confocal: formatting, move external link to footnote, web.archive.org
2022-09-17T12:36:49Z
formatting, move external link to footnote, web.archive.org

				
				
				
				
				
				← Older revision
				Revision as of 12:36, 17 September 2022
				
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==Description of format== ==Description of format==
Each object takes up one line in an ASCII file. The format itself specifies each line as an alternating list of ON and OFF [[cell]]s, starting with an ON cell. Each object takes up one line in an ASCII<ref>{{LinkWikipedia|ASCII|pagename=ASCII|nobullet=nobullet}}</ref> file. The format itself specifies each line as an alternating list of ON and OFF [[cell]]s, starting with an ON cell.



Using the minimal [[bounding box]], a single object is specified as follows: Using the minimal [[bounding box]], a single object is specified as follows:
# If the line starts with off cells, write "0". Otherwise, skip this step. # If the line starts with off cells, write "0". Otherwise, skip this step.
# If the count of consecutive cell of the same type (ON or OFF) is no more than 78, write the count of consecutive cells as ASCII(x + 0x30). For counts of 0-9, this results in the characters "0" through "9" ([http://en.wikipedia.org/wiki/ASCII ASCII at Wikipedia]). Otherwise, skip this step. # If the count of consecutive cell of the same type (ON or OFF) is no more than 78, write the count of consecutive cells as ASCII(x + 0x30). For counts of 0-9, this results in the characters "0" through "9". Otherwise, skip this step.
# If the count of consecutive cell of the same type (ON or OFF) is larger than 78, write the 78 using the encoding given in Step 2 (which gives "~"), then a "0" to signify a zero length run, followed by the value for (count-78), as described in Step 2. Repeat as necessary. For example, a count of 80 would be encoded as "~02". # If the count of consecutive cell of the same type (ON or OFF) is larger than 78, write the 78 using the encoding given in Step 2 (which gives "~"), then a "0" to signify a zero length run, followed by the value for (count-78), as described in Step 2. Repeat as necessary. For example, a count of 80 would be encoded as "~02".
# At the end of a row of a pattern, write "-".  For patterns containing multiple blank lines, write "+" followed by the count of consecutive line feeds as ASCII(x + 0x30).  Thus "3+43." is equivalent to "3----3." (two horizontal blinkers separated by three blank rows). # At the end of a row of a pattern, write "-".  For patterns containing multiple blank lines, write "+" followed by the count of consecutive line feeds as ASCII(x + 0x30).  Thus "3+43." is equivalent to "3----3." (two horizontal blinkers separated by three blank rows).
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==See also== ==See also==
* [[File formats]] * [[File formats]]

==References==
<references />



==External links== ==External links==
*[http://www.pentadecathlon.com/objects/definitions/definitions.php Description of SOF file format] at Pentadecathlon.com * [https://web.archive.org/web/20211102020428/http://pentadecathlon.com/objects/definitions/definitions.php Description of SOF file format] at pentadecathlon.com



[[Category:Everything else]][[Category:File formats]] [[Category:Everything else]]
[[Category:File formats]]



Book at 22:45, 29 April 2022
2022-04-29T22:45:44Z


				
				
				
				
				
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				Revision as of 22:45, 29 April 2022
				
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3-12-0111. (Glider) !This is a glider 3-12-0111. (Glider) !This is a glider
</code> </code>

==See also==
* [[File formats]]



==External links== ==External links==



Ian07 at 22:19, 3 January 2022
2022-01-03T22:19:37Z


				
				
				
				
				
				← Older revision
				Revision as of 22:19, 3 January 2022
				
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The '''small object format''' (or '''SOF''' for short) is a [[File Formats|file format]] designed by [[Heinrich Koenig]] that is primarily used for storing multiple [[pattern]]s in a single file, with one object per line in the file. It is about as human-readable as an [[RLE]] file, but it has the added benefit of increased compression. The '''small object format''' (or '''SOF''' for short) is a [[File formats|file format]] designed by [[Heinrich Koenig]] that is primarily used for storing multiple [[pattern]]s in a single file, with one object per line in the file. It is about as human-readable as an [[RLE]] file, but it has the added benefit of increased compression.



==Description of format== ==Description of format==



Book at 23:20, 23 December 2021
2021-12-23T23:20:03Z


				
				
				
				
				
				← Older revision
				Revision as of 23:20, 23 December 2021
				
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The '''small object format''' (or '''SOF''' for short) is a file format designed by [[Heinrich Koenig]] that is primarily used for storing multiple [[pattern]]s in a single file, with one object per line in the file. It is about as human-readable as an [[RLE]] file, but it has the added benefit of increased compression. The '''small object format''' (or '''SOF''' for short) is a [[File Formats|file format]] designed by [[Heinrich Koenig]] that is primarily used for storing multiple [[pattern]]s in a single file, with one object per line in the file. It is about as human-readable as an [[RLE]] file, but it has the added benefit of increased compression.



==Description of format== ==Description of format==



Apple Bottom: Correct example; see talk page
2017-09-20T11:17:11Z
Correct example; see talk page

				
				
				
				
				
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				Revision as of 11:17, 20 September 2017
				
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<code> <code>
011-021-3. (Glider) !This is a glider 3-12-0111. (Glider) !This is a glider
</code> </code>






Nathaniel: SOF moved to Small object format: full name
2009-07-30T16:57:43Z
SOF moved to Small object format: full name

				
				← Older revision
				Revision as of 16:57, 30 July 2009
				
(No difference)



Nathaniel: minor fixes, added full name
2009-07-30T16:57:28Z
minor fixes, added full name

				
				
				
				
				
				← Older revision
				Revision as of 16:57, 30 July 2009
				
Line 1:
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The '''SOF''' file format is a file format designed by [[Heinrich Koenig]] that is primarily used for storing multiple [[pattern]]s in a single file, with one object per line in the file. It is about as human-readable as an [[RLE]] file, but it has the added benefit of increased compression. The '''small object format''' (or '''SOF''' for short) is a file format designed by [[Heinrich Koenig]] that is primarily used for storing multiple [[pattern]]s in a single file, with one object per line in the file. It is about as human-readable as an [[RLE]] file, but it has the added benefit of increased compression.



==Description of format== ==Description of format==
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<code> <code>
(Glider)011-021-3.!This is a glider 011-021-3. (Glider) !This is a glider
</code> </code>

← Older revision		Revision as of 04:02, 15 December 2024
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	The following is a [[glider]] in SOF format:		The following is a [[glider]] in SOF format:

	<~~code~~>		<pre>
	3-12-0111. (Glider) !This is a glider		3-12-0111. (Glider) !This is a glider
	</~~code~~>		</pre>

	==See also==		==See also==

← Older revision		Revision as of 06:55, 24 March 2023
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	[[Category:Everything else]]		[[Category:Everything else]]
	[[Category:File formats]]		[[Category:File formats]]
			[[Category:Algorithms]]

← Older revision		Revision as of 12:36, 17 September 2022
Line 2:		Line 2:

	==Description of format==		==Description of format==
	Each object takes up one line in an ASCII file. The format itself specifies each line as an alternating list of ON and OFF [[cell]]s, starting with an ON cell.		Each object takes up one line in an ASCII<ref>{{LinkWikipedia\|ASCII\|pagename=ASCII\|nobullet=nobullet}}</ref> file. The format itself specifies each line as an alternating list of ON and OFF [[cell]]s, starting with an ON cell.

	Using the minimal [[bounding box]], a single object is specified as follows:		Using the minimal [[bounding box]], a single object is specified as follows:
	# If the line starts with off cells, write "0". Otherwise, skip this step.		# If the line starts with off cells, write "0". Otherwise, skip this step.
	# If the count of consecutive cell of the same type (ON or OFF) is no more than 78, write the count of consecutive cells as ASCII(x + 0x30). For counts of 0-9, this results in the characters "0" through "9" ~~([http://en.wikipedia.org/wiki/ASCII ASCII at Wikipedia])~~. Otherwise, skip this step.		# If the count of consecutive cell of the same type (ON or OFF) is no more than 78, write the count of consecutive cells as ASCII(x + 0x30). For counts of 0-9, this results in the characters "0" through "9". Otherwise, skip this step.
	# If the count of consecutive cell of the same type (ON or OFF) is larger than 78, write the 78 using the encoding given in Step 2 (which gives "~"), then a "0" to signify a zero length run, followed by the value for (count-78), as described in Step 2. Repeat as necessary. For example, a count of 80 would be encoded as "~02".		# If the count of consecutive cell of the same type (ON or OFF) is larger than 78, write the 78 using the encoding given in Step 2 (which gives "~"), then a "0" to signify a zero length run, followed by the value for (count-78), as described in Step 2. Repeat as necessary. For example, a count of 80 would be encoded as "~02".
	# At the end of a row of a pattern, write "-". For patterns containing multiple blank lines, write "+" followed by the count of consecutive line feeds as ASCII(x + 0x30). Thus "3+43." is equivalent to "3----3." (two horizontal blinkers separated by three blank rows).		# At the end of a row of a pattern, write "-". For patterns containing multiple blank lines, write "+" followed by the count of consecutive line feeds as ASCII(x + 0x30). Thus "3+43." is equivalent to "3----3." (two horizontal blinkers separated by three blank rows).
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	==See also==		==See also==
	* [[File formats]]		* [[File formats]]

			==References==
			<references />

	==External links==		==External links==
	*[http://~~www.~~pentadecathlon.com/objects/definitions/definitions.php Description of SOF file format] at ~~Pentadecathlon~~.com		* [https://web.archive.org/web/20211102020428/http://pentadecathlon.com/objects/definitions/definitions.php Description of SOF file format] at pentadecathlon.com

	[[Category:Everything else]][[Category:File formats]]		[[Category:Everything else]]
			[[Category:File formats]]

← Older revision		Revision as of 22:45, 29 April 2022
Line 20:		Line 20:
	3-12-0111. (Glider) !This is a glider		3-12-0111. (Glider) !This is a glider
	</code>		</code>

			==See also==
			* [[File formats]]

	==External links==		==External links==

← Older revision		Revision as of 22:19, 3 January 2022
Line 1:		Line 1:
	The '''small object format''' (or '''SOF''' for short) is a [[File ~~Formats~~\|file format]] designed by [[Heinrich Koenig]] that is primarily used for storing multiple [[pattern]]s in a single file, with one object per line in the file. It is about as human-readable as an [[RLE]] file, but it has the added benefit of increased compression.		The '''small object format''' (or '''SOF''' for short) is a [[File formats\|file format]] designed by [[Heinrich Koenig]] that is primarily used for storing multiple [[pattern]]s in a single file, with one object per line in the file. It is about as human-readable as an [[RLE]] file, but it has the added benefit of increased compression.

	==Description of format==		==Description of format==

← Older revision		Revision as of 23:20, 23 December 2021
Line 1:		Line 1:
	The '''small object format''' (or '''SOF''' for short) is a file format designed by [[Heinrich Koenig]] that is primarily used for storing multiple [[pattern]]s in a single file, with one object per line in the file. It is about as human-readable as an [[RLE]] file, but it has the added benefit of increased compression.		The '''small object format''' (or '''SOF''' for short) is a [[File Formats\|file format]] designed by [[Heinrich Koenig]] that is primarily used for storing multiple [[pattern]]s in a single file, with one object per line in the file. It is about as human-readable as an [[RLE]] file, but it has the added benefit of increased compression.

	==Description of format==		==Description of format==

← Older revision		Revision as of 11:17, 20 September 2017
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	<code>		<code>
	~~011~~-~~021~~-3. (Glider) !This is a glider		3-12-0111. (Glider) !This is a glider
	</code>		</code>

← Older revision	Revision as of 16:57, 30 July 2009
(No difference)

Small object format - Revision history

Neocaridina at 18:48, 20 January 2026

Sokwe: replaced block with block

Confocal: /* External links */ category

Confocal: formatting, move external link to footnote, web.archive.org

Book at 22:45, 29 April 2022

Ian07 at 22:19, 3 January 2022

Book at 23:20, 23 December 2021

Apple Bottom: Correct example; see talk page

Nathaniel: SOF moved to Small object format: full name

Nathaniel: minor fixes, added full name

Sokwe: replaced `block with block`