How to improve the estimated foliage overlay - Revision history

Frank@tygron.nl at 14:15, 13 April 2026

2026-04-13T14:15:06Z

← Older revision		Revision as of 14:15, 13 April 2026
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	\|seealso=		\|seealso=
	* [[WMS Overlay]]		* [[WMS Overlay]]
	* [[Heat Overlay]]		* [[Heat Stress Overlay]]
	}}		}}

	[[Category:How-to's]]		[[Category:How-to's]]

Frank@tygron.nl at 15:30, 30 January 2024

2024-01-30T15:30:10Z

← Older revision		Revision as of 15:30, 30 January 2024
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	* [[Heat Overlay]]		* [[Heat Overlay]]
	}}		}}

			[[Category:How-to's]]

Frank@tygron.nl at 10:48, 22 December 2023

2023-12-22T10:48:55Z

← Older revision		Revision as of 10:48, 22 December 2023
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	{{gallery		{{gallery
	\|~~File:~~how_to_custom_foliage_height.jpg\|Estimated foliage height.		\|how_to_custom_foliage_height.jpg\|Estimated foliage height.
	\|~~File:~~how_to_improved_foliage_height.jpg\|Improved estimated foliage height.		\|how_to_improved_foliage_height.jpg\|Improved estimated foliage height.
	}}		}}

Frank@tygron.nl at 10:48, 22 December 2023

2023-12-22T10:48:19Z

← Older revision		Revision as of 10:48, 22 December 2023
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	{{gallery		{{gallery
	File:how_to_custom_foliage_height.jpg\|Estimated foliage height.		\|File:how_to_custom_foliage_height.jpg\|Estimated foliage height.
	File:how_to_improved_foliage_height.jpg\|Improved estimated foliage height.		\|File:how_to_improved_foliage_height.jpg\|Improved estimated foliage height.
	}}		}}

Frank@tygron.nl at 10:48, 22 December 2023

2023-12-22T10:48:05Z

← Older revision		Revision as of 10:48, 22 December 2023
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	\| Select the formula field and type the following formula: <code>IF(GT (A, 0) , B , 0)</code>.		\| Select the formula field and type the following formula: <code>IF(GT (A, 0) , B , 0)</code>.
	\| Select the update now link to calculate the ''Improved Foliage Height''.		\| Select the update now link to calculate the ''Improved Foliage Height''.
			}}

			{{gallery
			File:how_to_custom_foliage_height.jpg\|Estimated foliage height.
			File:how_to_improved_foliage_height.jpg\|Improved estimated foliage height.
	}}		}}

Frank@tygron.nl at 10:46, 22 December 2023

2023-12-22T10:46:05Z

← Older revision		Revision as of 10:46, 22 December 2023
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	\| Click on the update now button to calculate the Average Overlay.		\| Click on the update now button to calculate the Average Overlay.
	\| Hover over Overlays in the ribbon bar, and under Grid Calculation, select '''Combo'''.		\| Hover over Overlays in the ribbon bar, and under Grid Calculation, select '''Combo'''.
	\| In the ~~Combo~~ Overlay's detail panel, select the combo box for ''Grid Input A'' and select the ''Custom Foliage Height'' Overlay.		\| In the combo Overlay's detail panel, select the name field and name it ''Improved Foliage Height''.
			\| Select the combo box for ''Grid Input A'' and select the ''Custom Foliage Height'' Overlay.
	\| Select the combo box for ''Grid Input B'' and select the ''Average Value'' Overlay.		\| Select the combo box for ''Grid Input B'' and select the ''Average Value'' Overlay.
	\| Select the formula field and type the following formula: <code>IF(GT (A, 0) , B , 0)</code>		\| Select the formula field and type the following formula: <code>IF(GT (A, 0) , B , 0)</code>.
			\| Select the update now link to calculate the ''Improved Foliage Height''.
	}}		}}

Frank@tygron.nl at 10:42, 22 December 2023

2023-12-22T10:42:57Z

← Older revision		Revision as of 10:42, 22 December 2023
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	\| In the Average Overlay's detail panel, click on the ''Configuration Wizard'' button.		\| In the Average Overlay's detail panel, click on the ''Configuration Wizard'' button.
	\| In the ''Operator'' step of the wizard, select the ''MAX'' option.		\| In the ''Operator'' step of the wizard, select the ''MAX'' option.
	\| In the ''Type'' step select ''Input based on an other [[Grid Overlay]]''		\| In the ''Type'' step select ''Input based on an other [[Grid Overlay]]''.
	\| In the ''Overlay'' step select the Custom Foliage Height overlay that we created using the previous [[How to use a Infrared WMS to estimate foliage height\|how-to]].		\| In the ''Overlay'' step select the Custom Foliage Height overlay that we created using the previous [[How to use a Infrared WMS to estimate foliage height\|how-to]].
	\| Select finish to close the wizard.		\| Select finish to close the wizard.
	\| In the Average Overlay's detail panel, select the Cell averaging distance field and provide the value '12'.		\| In the Average Overlay's detail panel, select the Cell averaging distance field and provide the value '12'.
			\| Click on the update now button to calculate the Average Overlay.
			\| Hover over Overlays in the ribbon bar, and under Grid Calculation, select '''Combo'''.
			\| In the Combo Overlay's detail panel, select the combo box for ''Grid Input A'' and select the ''Custom Foliage Height'' Overlay.
			\| Select the combo box for ''Grid Input B'' and select the ''Average Value'' Overlay.
			\| Select the formula field and type the following formula: <code>IF(GT (A, 0) , B , 0)</code>
	}}		}}

Frank@tygron.nl at 10:30, 22 December 2023

2023-12-22T10:30:08Z

← Older revision		Revision as of 10:30, 22 December 2023
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	This how-to assumes you have followed the previous [[How to use a Infrared WMS to estimate foliage height\|how-to]] on how to estimate foliage height using an Infrared [[WMS Overlay]].		This how-to assumes you have followed the previous [[How to use a Infrared WMS to estimate foliage height\|how-to]] on how to estimate foliage height using an Infrared [[WMS Overlay]].
			The how-to ends with a combo overlay that estimates the foliage height based on infra red images, a color filtering overlay and the subtraction of the surface and terrain height overlays.
			The resulting overlay provided a reasonable height for the tree trunks, but less for the branches of the trees. This how-to tries to improve the estimated foliage.
	<youtube>qk_5Qy1QkeM</youtube>		<youtube>qk_5Qy1QkeM</youtube>

	{{editor location\|overlays\|}}		{{editor location\|overlays\|}}

	{{editor steps\|title=~~compute a~~ foliage ~~estimation from an infrared WMS~~		{{editor steps\|title= improve the estimated foliage overlay
	\| ~~Add a new [[WMS Overlay]]~~, ~~with "Infrared" as its [[Project Source]]. This source is available by default~~.		\| Hover over Overlays in the ribbon bar, and under Grid Calculation select '''Average and Interpolation'''.
	\| ~~Select~~ the ~~most recent infrared layer.~~		\| In the Average Overlay's detail panel, click on the ''Configuration Wizard'' button.
	~~\| As result type~~, ~~select~~ the ~~"Red" color channel~~.		\| In the ''Operator'' step of the wizard, select the ''MAX'' option.
	\| ~~Add a [[Combo Overlay]]~~, ~~and set Grid Overlay "A" to~~ the ~~created [[WMS Overlay]] with the Infrared [[Project Source]]~~.		\| In the ''Type'' step select ''Input based on an other [[Grid Overlay]]''
	\| ~~As formula for~~ the [[~~Combo~~ Overlay]]~~, enter "GT(A, 160)"~~		\| In the ''Overlay'' step select the Custom Foliage Height overlay that we created using the previous [[How to use a Infrared WMS to estimate foliage height\|how-to]].
	\| ~~Duplicate~~ the ~~[[WMS~~ Overlay~~]], and set~~ the ~~result type of the duplicate to the "Green" color channel.~~		\| Select finish to close the wizard.
	~~\| Add~~ the ~~second~~ [[WMS ~~Overlay]]~~ to ~~the [[Combo Overlay]] as Grid Overlay "B".~~		\| In the Average Overlay's detail panel, select the Cell averaging distance field and provide the value '12'.
	\| ~~Change the formula for the [[Combo Overlay]]~~ to ~~MUL(GT(A, 160), GT(B, 80),14)~~
	~~\| Add a [[Heat Overlay~~]]~~, and open its configuration wizard~~.
	\| ~~Continue~~ to the ~~step regarding Foliage, and in that step opt to use a grid as input~~.
	\| ~~As foliage input grid~~, select the ~~configured [[Combo Overlay]]~~.
	~~\| The [[Heat Overlay]] now performs calculations using foliage which is derived from infrared imagery.~~
	}}		}}

	{{article end		{{article end
			\|notes=
			* The average distance of 12 meters is not set in stone, alternative average distances can be used.
	\|howtos=		\|howtos=
	*[[How to use a Infrared WMS to estimate foliage height]]		*[[How to use a Infrared WMS to estimate foliage height]]

Frank@tygron.nl at 10:22, 22 December 2023

2023-12-22T10:22:09Z

← Older revision		Revision as of 10:22, 22 December 2023
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	This how-to assumes you have followed the previous [[How to use a Infrared WMS to estimate foliage height\|how-to]] on how to estimate foliage height using an Infrared WMS ~~overlay~~.		This how-to assumes you have followed the previous [[How to use a Infrared WMS to estimate foliage height\|how-to]] on how to estimate foliage height using an Infrared [[WMS Overlay]].

	<youtube>qk_5Qy1QkeM</youtube>		<youtube>qk_5Qy1QkeM</youtube>

Frank@tygron.nl at 10:21, 22 December 2023

2023-12-22T10:21:58Z

← Older revision		Revision as of 10:21, 22 December 2023
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			This how-to assumes you have followed the previous [[How to use a Infrared WMS to estimate foliage height\|how-to]] on how to estimate foliage height using an Infrared WMS overlay.

	<youtube>qk_5Qy1QkeM</youtube>		<youtube>qk_5Qy1QkeM</youtube>


	{{editor location\|overlays\|}}		{{editor location\|overlays\|}}