ASC to ASC - Revision history

Pavlina Monhartova at 06:17, 18 April 2025

2025-04-18T06:17:51Z

← Older revision		Revision as of 16:17, 18 April 2025
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	=2023-03-AA (and later)=		=2023-03-AA (and later)=
	<span style="color:red;font-size:14">This release incorporates new GIS/GRID formats included in the 2023-03-AA TUFLOW release. Some slight changes to the ~~command~~ ~~line~~ interface have been made to accomodate the new formats therefore please be aware that some of behaviour in 2023 release contradicts documentation presented elsewhere on this page (these are explicitly listed in <b><u>[[#Changes_to_Old_Switches \| Changes to Old Switches]]</u></b> below). Where contradiction occurs, the behaviour listed here is the latest information and supersedes the behaviour listed elsewhere. </span> <span style="font-size:11"></span><br>		<span style="color:red;font-size:14">This release incorporates new GIS/GRID formats included in the 2023-03-AA TUFLOW release. Some slight changes to the console window interface have been made to accomodate the new formats therefore please be aware that some of behaviour in 2023 release contradicts documentation presented elsewhere on this page (these are explicitly listed in <b><u>[[#Changes_to_Old_Switches \| Changes to Old Switches]]</u></b> below). Where contradiction occurs, the behaviour listed here is the latest information and supersedes the behaviour listed elsewhere. </span> <span style="font-size:11"></span><br>

	The '''ASC_to_ASC-2023-03-AA''' release incorporates several new GIS formats - '''GeoTIFF''', '''GPKG''', '''NetCDF''' (note: NetCDF was previously supported but now has better integration with all operations). The commands are largely unchanged and now support input and output to a range of new formats.		The '''ASC_to_ASC-2023-03-AA''' release incorporates several new GIS formats - '''GeoTIFF''', '''GPKG''', '''NetCDF''' (note: NetCDF was previously supported but now has better integration with all operations). The commands are largely unchanged and now support input and output to a range of new formats.

ElizaCollison: /* No Data Values */

2025-04-17T03:18:27Z

No Data Values

← Older revision		Revision as of 13:18, 17 April 2025
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	<b>"-ndv <val>"</b><br>		<b>"-ndv <val>"</b><br>
	An additional option to set the "no data value" is also possible when running the conversion function: <tt>-ndv <val></tt>. Note, this option will identify NaN values ("not a number") in the input grid, and treat them as no data values during the conversion (regardless of whether they are explicitly labelled as "no data values" in the grid header). This is useful if the user wants to remove all NaN values from the grid.		An additional option to set the "no data value" is also possible when running the conversion function: <tt>-ndv <val></tt>. Note, this option will identify NaN values ("not a number") in the input grid, and treat them as no data values during the conversion (regardless of whether they are explicitly labelled as "no data values" in the grid header). This is useful if the user wants to remove all NaN values from the grid. Note, from the 2025.1 release and onwards, NaN's values in grid inputs are always treated as “no data values” and therefore grids can be read into TUFLOW directly without undertaking the below process.

	*Converts asc to tif and sets the "no data value" to -999		*Converts asc to tif and sets the "no data value" to -999
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	*Removes all NaN values in a tif and replace them with -999		*Removes all NaN values in a tif and replace them with -999
	:<tt>asc_to_asc.exe -conv -tif -ndv -999 <input.tif> -out <output.tif></tt><nowiki>**</nowiki><br>		:<tt>asc_to_asc.exe -conv -tif -ndv -999 <input.tif> -out <output.tif></tt><nowiki>**</nowiki><br>
	~~<b>~~<nowiki>**</nowiki> Note~~</b>~~, in the above example it is important to specify an output name with <tt>-out</tt> when converting to the same format (e.g. tif to tif) as otherwise the output will overwrite the input.<br>		<nowiki>**</nowiki> Note, in the above example it is important to specify an output name with <tt>-out</tt> when converting to the same format (e.g. tif to tif) as otherwise the output will overwrite the input.<br>
	<b><nowiki>**</nowiki> Note</b>, from the 2025.1 release and onwards, NaN's values in grid inputs are always treated as “no data values” and therefore grids can be read into TUFLOW directly without undertaking the above process.

	==Maximum==		==Maximum==

ElizaCollison: /* No Data Values */

2025-04-17T03:17:42Z

No Data Values

← Older revision		Revision as of 13:17, 17 April 2025
Line 111:		Line 111:
	*Removes all NaN values in a tif and replace them with -999		*Removes all NaN values in a tif and replace them with -999
	:<tt>asc_to_asc.exe -conv -tif -ndv -999 <input.tif> -out <output.tif></tt><nowiki>**</nowiki><br>		:<tt>asc_to_asc.exe -conv -tif -ndv -999 <input.tif> -out <output.tif></tt><nowiki>**</nowiki><br>
	<b><nowiki>**</nowiki> Note</b>, in the above example it is important to specify an output name with <tt>-out</tt> when converting to the same format (e.g. tif to tif) as otherwise the output will overwrite the input.		<b><nowiki>**</nowiki> Note</b>, in the above example it is important to specify an output name with <tt>-out</tt> when converting to the same format (e.g. tif to tif) as otherwise the output will overwrite the input.<br>
			<b><nowiki>**</nowiki> Note</b>, from the 2025.1 release and onwards, NaN's values in grid inputs are always treated as “no data values” and therefore grids can be read into TUFLOW directly without undertaking the above process.

	==Maximum==		==Maximum==

Ellis Symons: /* No Data Values */

2025-02-03T11:56:02Z

No Data Values

← Older revision		Revision as of 21:56, 3 February 2025
Line 111:		Line 111:
	*Removes all NaN values in a tif and replace them with -999		*Removes all NaN values in a tif and replace them with -999
	:<tt>asc_to_asc.exe -conv -tif -ndv -999 <input.tif> -out <output.tif></tt><nowiki>**</nowiki><br>		:<tt>asc_to_asc.exe -conv -tif -ndv -999 <input.tif> -out <output.tif></tt><nowiki>**</nowiki><br>
	<nowiki>**</nowiki> ~~<b>~~Note</b>, in the above example it is important to specify an output name with <tt>-out</tt> when converting to the same format (e.g. tif to tif) as otherwise the output will overwrite the input.		<b><nowiki>**</nowiki> Note</b>, in the above example it is important to specify an output name with <tt>-out</tt> when converting to the same format (e.g. tif to tif) as otherwise the output will overwrite the input.

	==Maximum==		==Maximum==

Ellis Symons: /* No Data Values */

2025-02-03T11:55:37Z

No Data Values

← Older revision		Revision as of 21:55, 3 February 2025
Line 111:		Line 111:
	*Removes all NaN values in a tif and replace them with -999		*Removes all NaN values in a tif and replace them with -999
	:<tt>asc_to_asc.exe -conv -tif -ndv -999 <input.tif> -out <output.tif></tt><nowiki>**</nowiki><br>		:<tt>asc_to_asc.exe -conv -tif -ndv -999 <input.tif> -out <output.tif></tt><nowiki>**</nowiki><br>
	<nowiki>**</nowiki> Note, in the above example it is important to specify an output name with <tt>-out</tt> when converting to the same format (e.g. tif to tif) as otherwise the output will overwrite the input.		<nowiki>**</nowiki> <b>Note</b>, in the above example it is important to specify an output name with <tt>-out</tt> when converting to the same format (e.g. tif to tif) as otherwise the output will overwrite the input.

	==Maximum==		==Maximum==

Ellis Symons: /* No Data Values */

2025-02-03T11:54:32Z

No Data Values

← Older revision		Revision as of 21:54, 3 February 2025
Line 104:		Line 104:
	===No Data Values===		===No Data Values===

	<b>"-ndv <val>"""</b><br>		<b>"-ndv <val>"</b><br>
	An additional option to set the "no data value" is also possible when running the conversion function: <tt>-ndv <val></tt>. Note, this option will identify NaN values ("not a number") in the input grid, and treat them as no data values during the conversion (regardless of whether they are explicitly labelled as "no data values" in the grid header). This is useful if the user wants to remove all NaN values from the grid.		An additional option to set the "no data value" is also possible when running the conversion function: <tt>-ndv <val></tt>. Note, this option will identify NaN values ("not a number") in the input grid, and treat them as no data values during the conversion (regardless of whether they are explicitly labelled as "no data values" in the grid header). This is useful if the user wants to remove all NaN values from the grid.

Ellis Symons: /* No Data Values */

2025-02-03T11:54:21Z

No Data Values

← Older revision		Revision as of 21:54, 3 February 2025
Line 104:		Line 104:
	===No Data Values===		===No Data Values===

			<b>"-ndv <val>"""</b><br>
	An additional option to set the "no data value" is also possible when running the conversion function: <tt>-ndv <val></tt>. Note, this option will identify NaN values ("not a number") in the input grid, and treat them as no data values during the conversion (regardless of whether they are explicitly labelled as "no data values" in the grid header). This is useful if the user wants to remove all NaN values from the grid.		An additional option to set the "no data value" is also possible when running the conversion function: <tt>-ndv <val></tt>. Note, this option will identify NaN values ("not a number") in the input grid, and treat them as no data values during the conversion (regardless of whether they are explicitly labelled as "no data values" in the grid header). This is useful if the user wants to remove all NaN values from the grid.

Ellis Symons: /* Convert */

2025-02-03T11:53:20Z

Convert

← Older revision		Revision as of 21:53, 3 February 2025
Line 101:		Line 101:
	*Converts the file "DEM_M01.asc" for .flt format.<br>		*Converts the file "DEM_M01.asc" for .flt format.<br>
	:<tt>asc_to_asc.exe -conv DEM_M01.asc</tt>		:<tt>asc_to_asc.exe -conv DEM_M01.asc</tt>

			===No Data Values===

	An additional option to set the "no data value" is also possible when running the conversion function: <tt>-ndv <val></tt>. Note, this option will identify NaN values ("not a number") in the input grid, and treat them as no data values during the conversion (regardless of whether they are explicitly labelled as "no data values" in the grid header). This is useful if the user wants to remove all NaN values from the grid.		An additional option to set the "no data value" is also possible when running the conversion function: <tt>-ndv <val></tt>. Note, this option will identify NaN values ("not a number") in the input grid, and treat them as no data values during the conversion (regardless of whether they are explicitly labelled as "no data values" in the grid header). This is useful if the user wants to remove all NaN values from the grid.

Ellis Symons: /* Convert */

2025-02-03T11:52:28Z

Convert

← Older revision		Revision as of 21:52, 3 February 2025
Line 106:		Line 106:
	*Converts asc to tif and sets the "no data value" to -999		*Converts asc to tif and sets the "no data value" to -999
	:<tt>asc_to_asc.exe -conv -tif -ndv -999 DEM_M01.asc</tt>		:<tt>asc_to_asc.exe -conv -tif -ndv -999 DEM_M01.asc</tt>
	*Removes all NaN values in a tif and ~~replaces~~ them with -999		*Removes all NaN values in a tif and replace them with -999
	:<tt>asc_to_asc.exe -conv -tif -ndv -999 <input.tif> -out <output.tif></tt><nowiki>**</nowiki><br>		:<tt>asc_to_asc.exe -conv -tif -ndv -999 <input.tif> -out <output.tif></tt><nowiki>**</nowiki><br>
	<nowiki>**</nowiki> Note, in the above example it is important to specify an output name with <tt>-out</tt> when converting to the same format (e.g. tif to tif) as otherwise the output will overwrite the input.		<nowiki>**</nowiki> Note, in the above example it is important to specify an output name with <tt>-out</tt> when converting to the same format (e.g. tif to tif) as otherwise the output will overwrite the input.

Ellis Symons: /* Convert */

2025-02-03T11:51:48Z

Convert

← Older revision		Revision as of 21:51, 3 February 2025
Line 101:		Line 101:
	*Converts the file "DEM_M01.asc" for .flt format.<br>		*Converts the file "DEM_M01.asc" for .flt format.<br>
	:<tt>asc_to_asc.exe -conv DEM_M01.asc</tt>		:<tt>asc_to_asc.exe -conv DEM_M01.asc</tt>

			An additional option to set the "no data value" is also possible when running the conversion function: <tt>-ndv <val></tt>. Note, this option will identify NaN values ("not a number") in the input grid, and treat them as no data values during the conversion (regardless of whether they are explicitly labelled as "no data values" in the grid header). This is useful if the user wants to remove all NaN values from the grid.

			*Converts asc to tif and sets the "no data value" to -999
			:<tt>asc_to_asc.exe -conv -tif -ndv -999 DEM_M01.asc</tt>
			*Removes all NaN values in a tif and replaces them with -999
			:<tt>asc_to_asc.exe -conv -tif -ndv -999 <input.tif> -out <output.tif></tt><nowiki>**</nowiki><br>
			<nowiki>**</nowiki> Note, in the above example it is important to specify an output name with <tt>-out</tt> when converting to the same format (e.g. tif to tif) as otherwise the output will overwrite the input.

	==Maximum==		==Maximum==