Combo Overlay - Revision history

Frank@tygron.nl: /* Attributes */

2026-04-29T08:41:50Z

Attributes

← Older revision		Revision as of 08:41, 29 April 2026
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	* [[How to remove a waterway from the heightmap]]		* [[How to remove a waterway from the heightmap]]
	* [[How to use building attributes in a Combo Overlay]]		* [[How to use building attributes in a Combo Overlay]]
			* [[How to visualize the year of construction using an overlay]]

	\|seealso=		\|seealso=

Frank@tygron.nl at 14:17, 13 April 2026

2026-04-13T14:17:38Z

← Older revision		Revision as of 14:17, 13 April 2026
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	The Combo Overlay is a [[Grid Overlay]] which can be used to create additional spatial calculation models. Up to ten [[prequel\|input Overlay]]s can be selected in combination with an attribute and [[Globals]] as input for the calculations. A large set of functions and operators are available which can then perform the desired computations.		The Combo Overlay is a [[Grid Overlay]] which can be used to create additional spatial calculation models. Up to ten [[prequel\|input Overlay]]s can be selected in combination with an attribute and [[Globals]] as input for the calculations. A large set of functions and operators are available which can then perform the desired computations.

	Combo Overlays can take any [[Grid Overlay]] as [[prequel\|input]]. It is often combined with one or more [[Average Overlay]]s or [[Travel Distance Overlay]]s. The Combo Overlay can also use the results of more complex calculation models, such as the [[Water Overlay]] or the [[Heat Overlay]] to further process the computed results of those models. Finally, Combo Overlays can also refer to other Combo Overlays, to create even more powerful, varied, and complex spatial calculation models.		Combo Overlays can take any [[Grid Overlay]] as [[prequel\|input]]. It is often combined with one or more [[Average Overlay]]s or [[Travel Distance Overlay]]s. The Combo Overlay can also use the results of more complex calculation models, such as the [[Water Overlay]] or the [[Heat Stress Overlay]] to further process the computed results of those models. Finally, Combo Overlays can also refer to other Combo Overlays, to create even more powerful, varied, and complex spatial calculation models.

	{{clear}}		{{clear}}
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	\| GT(A2, 38)		\| GT(A2, 38)
	\| Assuming:		\| Assuming:
	*A is a [[Heat Overlay]] with [[Pet result type (Heat Overlay)\|Physiological Equivalent Temperature]] as result type		*A is a [[Heat Stress Overlay]] with [[Pet result type (Heat Stress Overlay)\|Physiological Equivalent Temperature]] as result type
	Will indicate whether any given location is (1) or is not (0) hotter than 38 {{celsius}}, on the third computed timeframe of the [[Heat Overlay]].		Will indicate whether any given location is (1) or is not (0) hotter than 38 {{celsius}}, on the third computed timeframe of the [[Heat Stress Overlay]].
	\|-		\|-
	\| A0:2		\| A0:2
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	\| AVG(A0:2)		\| AVG(A0:2)
	\| Assuming:		\| Assuming:
	*A is a [[Heat Overlay]] with [[Pet result type (Heat Overlay)\|Physiological Equivalent Temperature]] as result type		*A is a [[Heat Stress Overlay]] with [[Pet result type (Heat Stress Overlay)\|Physiological Equivalent Temperature]] as result type
	Will show the average of the computed temperatures of the first three timeframes of the [[Heat Overlay]].		Will show the average of the computed temperatures of the first three timeframes of the [[Heat Stress Overlay]].
	\|-		\|-
	\| AT		\| AT

Maxim@tygron.com: /* Operators */

2026-03-02T12:48:45Z

Operators

← Older revision		Revision as of 12:48, 2 March 2026
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	{{Combo operators\|type=row\| combo_operator=SWITCH \| \|category=Multi \|combo_type=Function \|display=Switch-case function. First argument is the testable expression. Second argument is the default result. Each next pair of 2 arguments is a case value and a result value. When a pair's first argument matches the initial expression, that pair's second argument is returned. If no case matches, the default result is returned.}}		{{Combo operators\|type=row\| combo_operator=SWITCH \| \|category=Multi \|combo_type=Function \|display=Switch-case function. First argument is the testable expression. Second argument is the default result. Each next pair of 2 arguments is a case value and a result value. When a pair's first argument matches the initial expression, that pair's second argument is returned. If no case matches, the default result is returned.}}
	{{Combo operators\|type=row\| combo_operator=COLOR \| \|category=Constant \|combo_type=Function \|display=Create a color given a red, green and blue value. A fourth alpha value is optional.}}		{{Combo operators\|type=row\| combo_operator=COLOR \| \|category=Constant \|combo_type=Function \|display=Create a color given a red, green and blue value. A fourth alpha value is optional.}}
	{{Combo operators\|type=row\| combo_operator=RED \| \|category=Constant \|combo_type=Function \|display=Get a red channel value for a legend color or pixel value.}}		{{Combo operators\|type=row\| combo_operator=RED \| \|category=Constant \|combo_type=Function \|display=Get a red channel value (0-255) for a legend color or pixel value.}}
	{{Combo operators\|type=row\| combo_operator=GREEN \| \|category=Constant \|combo_type=Function \|display=Get a green channel value for a legend color or pixel value.}}		{{Combo operators\|type=row\| combo_operator=GREEN \| \|category=Constant \|combo_type=Function \|display=Get a green channel value (0-255) for a legend color or pixel value.}}
	{{Combo operators\|type=row\| combo_operator=BLUE \| \|category=Constant \|combo_type=Function \|display=Get a blue channel value for a legend color or pixel value.}}		{{Combo operators\|type=row\| combo_operator=BLUE \| \|category=Constant \|combo_type=Function \|display=Get a blue channel value (0-255) for a legend color or pixel value.}}
	{{Combo operators\|type=row\| combo_operator=ALPHA \| \|category=Constant \|combo_type=Function \|display=Get an alpha channel value for a legend color or pixel value.}}		{{Combo operators\|type=row\| combo_operator=ALPHA \| \|category=Constant \|combo_type=Function \|display=Get an alpha channel value (0-255) for a legend color or pixel value.}}

	{{Combo operators\|type=row\| combo_operator=NO_DATA \| \|category=Constant \|combo_type=Constant \|display=The NO_DATA value for grid data, indicating no data exists.}}		{{Combo operators\|type=row\| combo_operator=NO_DATA \| \|category=Constant \|combo_type=Constant \|display=The NO_DATA value for grid data, indicating no data exists.}}

Maxim@tygron.com: /* Operators */

2026-03-02T12:48:05Z

Operators

← Older revision		Revision as of 12:48, 2 March 2026
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	{{Combo operators\|type=row\| combo_operator=SWITCH \| \|category=Multi \|combo_type=Function \|display=Switch-case function. First argument is the testable expression. Second argument is the default result. Each next pair of 2 arguments is a case value and a result value. When a pair's first argument matches the initial expression, that pair's second argument is returned. If no case matches, the default result is returned.}}		{{Combo operators\|type=row\| combo_operator=SWITCH \| \|category=Multi \|combo_type=Function \|display=Switch-case function. First argument is the testable expression. Second argument is the default result. Each next pair of 2 arguments is a case value and a result value. When a pair's first argument matches the initial expression, that pair's second argument is returned. If no case matches, the default result is returned.}}
	{{Combo operators\|type=row\| combo_operator=COLOR \| \|category=Constant \|combo_type=Function \|display=Create a color given a red, green and blue value. A fourth alpha value is optional.}}		{{Combo operators\|type=row\| combo_operator=COLOR \| \|category=Constant \|combo_type=Function \|display=Create a color given a red, green and blue value. A fourth alpha value is optional.}}
	{{Combo operators\|type=row\| combo_operator=RED \| \|category=Constant \|combo_type=Function \|display=Get a red channel value for a color.}}		{{Combo operators\|type=row\| combo_operator=RED \| \|category=Constant \|combo_type=Function \|display=Get a red channel value for a legend color or pixel value.}}
	{{Combo operators\|type=row\| combo_operator=GREEN \| \|category=Constant \|combo_type=Function \|display=Get a green channel value for a color.}}		{{Combo operators\|type=row\| combo_operator=GREEN \| \|category=Constant \|combo_type=Function \|display=Get a green channel value for a legend color or pixel value.}}
	{{Combo operators\|type=row\| combo_operator=BLUE \| \|category=Constant \|combo_type=Function \|display=Get a blue channel value for a color.}}		{{Combo operators\|type=row\| combo_operator=BLUE \| \|category=Constant \|combo_type=Function \|display=Get a blue channel value for a legend color or pixel value.}}
	{{Combo operators\|type=row\| combo_operator=ALPHA \| \|category=Constant \|combo_type=Function \|display=Get an alpha channel value for a color.}}		{{Combo operators\|type=row\| combo_operator=ALPHA \| \|category=Constant \|combo_type=Function \|display=Get an alpha channel value for a legend color or pixel value.}}

	{{Combo operators\|type=row\| combo_operator=NO_DATA \| \|category=Constant \|combo_type=Constant \|display=The NO_DATA value for grid data, indicating no data exists.}}		{{Combo operators\|type=row\| combo_operator=NO_DATA \| \|category=Constant \|combo_type=Constant \|display=The NO_DATA value for grid data, indicating no data exists.}}

Rudolf@tygron.nl at 12:47, 25 February 2026

2026-02-25T12:47:09Z

← Older revision		Revision as of 12:47, 25 February 2026
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	* When multiple input Overlays are referenced with a "T" syntax and those have varying amounts of [[timeframe]]s, the maximum amount of timeframes among those input Overlays is used.		* When multiple input Overlays are referenced with a "T" syntax and those have varying amounts of [[timeframe]]s, the maximum amount of timeframes among those input Overlays is used.
	* When the "T" syntax is used to refer to an input Overlay with fewer [[timeframe]]s than the Combo Overlay itself, any [[timeframe]] referenced via the "T" syntax beyond what the input Overlay offers uses whichever value the last [[timeframe]] of that input Overlay had. I.e. if a [[Water Overlay]] has 10 [[timeframe]]s but the Combo Overlay attempts to compute an 11th [[timeframe]] and beyond, the value from the last (10th) [[timeframe]] of the [[Water Overlay]] is used.		* When the "T" syntax is used to refer to an input Overlay with fewer [[timeframe]]s than the Combo Overlay itself, any [[timeframe]] referenced via the "T" syntax beyond what the input Overlay offers uses whichever value the last [[timeframe]] of that input Overlay had. I.e. if a [[Water Overlay]] has 10 [[timeframe]]s but the Combo Overlay attempts to compute an 11th [[timeframe]] and beyond, the value from the last (10th) [[timeframe]] of the [[Water Overlay]] is used.
	* Conditionally include grid information in Combo Overlay calculation: https://community.tygron.com/forum/discussion/551/conditionally-include-grid-information-in-a-combo-overlay-calculation
	* Biodiversity analysis: bats (Dutch only):		* Biodiversity analysis: bats (Dutch only):
	{{video\|link=https://www.youtube.com/watch?v=vrfkI9oFYec&t=0s\|language=Dutch\|description=Example of the Combo overlay for bat routes in the {{software}}.}}		{{video\|link=https://www.youtube.com/watch?v=vrfkI9oFYec&t=0s\|language=Dutch\|description=Example of the Combo overlay for bat routes in the {{software}}.}}

Rudolf@tygron.nl: American english

2025-11-11T06:49:37Z

American english

← Older revision		Revision as of 06:49, 11 November 2025
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	* [[Combo Overlay with masking]]		* [[Combo Overlay with masking]]
	* [[Combo Overlay with distance filtering]]		* [[Combo Overlay with distance filtering]]
	* [[How to adjust the height map with a Combo Overlay]] - an example for ~~kerbs~~		* [[How to adjust the height map with a Combo Overlay]] - an example for curbs
	* [[How to compute the presence of features of a particular size]] - an example for public green		* [[How to compute the presence of features of a particular size]] - an example for public green
	* [[How to combine results of multiple Overlays as timeframes in a Combo Overlay]]		* [[How to combine results of multiple Overlays as timeframes in a Combo Overlay]]

Frank@tygron.nl: /* Operators */

2025-11-10T15:41:26Z

Operators

← Older revision		Revision as of 15:41, 10 November 2025
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	{{Combo operators\|type=row\| combo_operator=AVG_LTE_PERCENTILE \| \|category=Multi \|combo_type=Function \|display=Calculates the average of the provided arguments which are below the calculated linear interpolated k-th percentile (value between 0 and 1). The last provided argument should be the percentile.}}		{{Combo operators\|type=row\| combo_operator=AVG_LTE_PERCENTILE \| \|category=Multi \|combo_type=Function \|display=Calculates the average of the provided arguments which are below the calculated linear interpolated k-th percentile (value between 0 and 1). The last provided argument should be the percentile.}}
	{{Combo operators\|type=row\| combo_operator=SWITCH \| \|category=Multi \|combo_type=Function \|display=Switch-case function. First argument is the testable expression. Second argument is the default result. Each next pair of 2 arguments is a case value and a result value. When a pair's first argument matches the initial expression, that pair's second argument is returned. If no case matches, the default result is returned.}}		{{Combo operators\|type=row\| combo_operator=SWITCH \| \|category=Multi \|combo_type=Function \|display=Switch-case function. First argument is the testable expression. Second argument is the default result. Each next pair of 2 arguments is a case value and a result value. When a pair's first argument matches the initial expression, that pair's second argument is returned. If no case matches, the default result is returned.}}
			{{Combo operators\|type=row\| combo_operator=COLOR \| \|category=Constant \|combo_type=Function \|display=Create a color given a red, green and blue value. A fourth alpha value is optional.}}
			{{Combo operators\|type=row\| combo_operator=RED \| \|category=Constant \|combo_type=Function \|display=Get a red channel value for a color.}}
			{{Combo operators\|type=row\| combo_operator=GREEN \| \|category=Constant \|combo_type=Function \|display=Get a green channel value for a color.}}
			{{Combo operators\|type=row\| combo_operator=BLUE \| \|category=Constant \|combo_type=Function \|display=Get a blue channel value for a color.}}
			{{Combo operators\|type=row\| combo_operator=ALPHA \| \|category=Constant \|combo_type=Function \|display=Get an alpha channel value for a color.}}

	{{Combo operators\|type=row\| combo_operator=NO_DATA \| \|category=Constant \|combo_type=Constant \|display=The NO_DATA value for grid data, indicating no data exists.}}		{{Combo operators\|type=row\| combo_operator=NO_DATA \| \|category=Constant \|combo_type=Constant \|display=The NO_DATA value for grid data, indicating no data exists.}}
	{{Combo operators\|type=row\| combo_operator=DX \| \|category=Constant \|combo_type=Constant \|display=The cell size in meters of this Combo Overlay.}}		{{Combo operators\|type=row\| combo_operator=DX \| \|category=Constant \|combo_type=Constant \|display=The cell size in meters of this Combo Overlay.}}

Maxim@tygron.com at 16:07, 17 October 2025

2025-10-17T16:07:18Z

← Older revision		Revision as of 16:07, 17 October 2025
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	\|howtos=		\|howtos=
	* [[How to add and remove an Overlay]]		* [[How to add and remove an Overlay]]
	* [[How to edit a Combo Overlay's formula]]		* [[How to edit a Combo Overlay formula]]
	* [[How to edit an overlay legend]]		* [[How to edit an overlay legend]]
	* [[How to use building attributes in a Combo Overlay]]		* [[How to use building attributes in a Combo Overlay]]

Maxim@tygron.com at 13:06, 17 October 2025

2025-10-17T13:06:13Z

← Older revision		Revision as of 13:06, 17 October 2025
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	* [[How to edit an overlay legend]]		* [[How to edit an overlay legend]]
	* [[How to use building attributes in a Combo Overlay]]		* [[How to use building attributes in a Combo Overlay]]
			* [[How to use neighborhood attributes in a Combo Overlay]]
	* [[How to add and remove an Attribute]]		* [[How to add and remove an Attribute]]
	: Examples:		: Examples:

Frank@tygron.nl: /* Attributes */

2025-10-10T12:21:15Z

Attributes

← Older revision		Revision as of 12:21, 10 October 2025
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	* [[How to make a Grid Overlay of residences]]		* [[How to make a Grid Overlay of residences]]
	* [[How to remove a waterway from the heightmap]]		* [[How to remove a waterway from the heightmap]]
			* [[How to use building attributes in a Combo Overlay]]

	\|seealso=		\|seealso=

← Older revision		Revision as of 12:48, 2 March 2026
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	{{Combo operators\|type=row\| combo_operator=SWITCH \| \|category=Multi \|combo_type=Function \|display=Switch-case function. First argument is the testable expression. Second argument is the default result. Each next pair of 2 arguments is a case value and a result value. When a pair's first argument matches the initial expression, that pair's second argument is returned. If no case matches, the default result is returned.}}		{{Combo operators\|type=row\| combo_operator=SWITCH \| \|category=Multi \|combo_type=Function \|display=Switch-case function. First argument is the testable expression. Second argument is the default result. Each next pair of 2 arguments is a case value and a result value. When a pair's first argument matches the initial expression, that pair's second argument is returned. If no case matches, the default result is returned.}}
	{{Combo operators\|type=row\| combo_operator=COLOR \| \|category=Constant \|combo_type=Function \|display=Create a color given a red, green and blue value. A fourth alpha value is optional.}}		{{Combo operators\|type=row\| combo_operator=COLOR \| \|category=Constant \|combo_type=Function \|display=Create a color given a red, green and blue value. A fourth alpha value is optional.}}
	{{Combo operators\|type=row\| combo_operator=RED \| \|category=Constant \|combo_type=Function \|display=Get a red channel value for a legend color or pixel value.}}		{{Combo operators\|type=row\| combo_operator=RED \| \|category=Constant \|combo_type=Function \|display=Get a red channel value (0-255) for a legend color or pixel value.}}
	{{Combo operators\|type=row\| combo_operator=GREEN \| \|category=Constant \|combo_type=Function \|display=Get a green channel value for a legend color or pixel value.}}		{{Combo operators\|type=row\| combo_operator=GREEN \| \|category=Constant \|combo_type=Function \|display=Get a green channel value (0-255) for a legend color or pixel value.}}
	{{Combo operators\|type=row\| combo_operator=BLUE \| \|category=Constant \|combo_type=Function \|display=Get a blue channel value for a legend color or pixel value.}}		{{Combo operators\|type=row\| combo_operator=BLUE \| \|category=Constant \|combo_type=Function \|display=Get a blue channel value (0-255) for a legend color or pixel value.}}
	{{Combo operators\|type=row\| combo_operator=ALPHA \| \|category=Constant \|combo_type=Function \|display=Get an alpha channel value for a legend color or pixel value.}}		{{Combo operators\|type=row\| combo_operator=ALPHA \| \|category=Constant \|combo_type=Function \|display=Get an alpha channel value (0-255) for a legend color or pixel value.}}

	{{Combo operators\|type=row\| combo_operator=NO_DATA \| \|category=Constant \|combo_type=Constant \|display=The NO_DATA value for grid data, indicating no data exists.}}		{{Combo operators\|type=row\| combo_operator=NO_DATA \| \|category=Constant \|combo_type=Constant \|display=The NO_DATA value for grid data, indicating no data exists.}}

← Older revision		Revision as of 12:48, 2 March 2026
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	{{Combo operators\|type=row\| combo_operator=SWITCH \| \|category=Multi \|combo_type=Function \|display=Switch-case function. First argument is the testable expression. Second argument is the default result. Each next pair of 2 arguments is a case value and a result value. When a pair's first argument matches the initial expression, that pair's second argument is returned. If no case matches, the default result is returned.}}		{{Combo operators\|type=row\| combo_operator=SWITCH \| \|category=Multi \|combo_type=Function \|display=Switch-case function. First argument is the testable expression. Second argument is the default result. Each next pair of 2 arguments is a case value and a result value. When a pair's first argument matches the initial expression, that pair's second argument is returned. If no case matches, the default result is returned.}}
	{{Combo operators\|type=row\| combo_operator=COLOR \| \|category=Constant \|combo_type=Function \|display=Create a color given a red, green and blue value. A fourth alpha value is optional.}}		{{Combo operators\|type=row\| combo_operator=COLOR \| \|category=Constant \|combo_type=Function \|display=Create a color given a red, green and blue value. A fourth alpha value is optional.}}
	{{Combo operators\|type=row\| combo_operator=RED \| \|category=Constant \|combo_type=Function \|display=Get a red channel value for a color.}}		{{Combo operators\|type=row\| combo_operator=RED \| \|category=Constant \|combo_type=Function \|display=Get a red channel value for a legend color or pixel value.}}
	{{Combo operators\|type=row\| combo_operator=GREEN \| \|category=Constant \|combo_type=Function \|display=Get a green channel value for a color.}}		{{Combo operators\|type=row\| combo_operator=GREEN \| \|category=Constant \|combo_type=Function \|display=Get a green channel value for a legend color or pixel value.}}
	{{Combo operators\|type=row\| combo_operator=BLUE \| \|category=Constant \|combo_type=Function \|display=Get a blue channel value for a color.}}		{{Combo operators\|type=row\| combo_operator=BLUE \| \|category=Constant \|combo_type=Function \|display=Get a blue channel value for a legend color or pixel value.}}
	{{Combo operators\|type=row\| combo_operator=ALPHA \| \|category=Constant \|combo_type=Function \|display=Get an alpha channel value for a color.}}		{{Combo operators\|type=row\| combo_operator=ALPHA \| \|category=Constant \|combo_type=Function \|display=Get an alpha channel value for a legend color or pixel value.}}

	{{Combo operators\|type=row\| combo_operator=NO_DATA \| \|category=Constant \|combo_type=Constant \|display=The NO_DATA value for grid data, indicating no data exists.}}		{{Combo operators\|type=row\| combo_operator=NO_DATA \| \|category=Constant \|combo_type=Constant \|display=The NO_DATA value for grid data, indicating no data exists.}}

← Older revision		Revision as of 15:41, 10 November 2025
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	{{Combo operators\|type=row\| combo_operator=AVG_LTE_PERCENTILE \| \|category=Multi \|combo_type=Function \|display=Calculates the average of the provided arguments which are below the calculated linear interpolated k-th percentile (value between 0 and 1). The last provided argument should be the percentile.}}		{{Combo operators\|type=row\| combo_operator=AVG_LTE_PERCENTILE \| \|category=Multi \|combo_type=Function \|display=Calculates the average of the provided arguments which are below the calculated linear interpolated k-th percentile (value between 0 and 1). The last provided argument should be the percentile.}}
	{{Combo operators\|type=row\| combo_operator=SWITCH \| \|category=Multi \|combo_type=Function \|display=Switch-case function. First argument is the testable expression. Second argument is the default result. Each next pair of 2 arguments is a case value and a result value. When a pair's first argument matches the initial expression, that pair's second argument is returned. If no case matches, the default result is returned.}}		{{Combo operators\|type=row\| combo_operator=SWITCH \| \|category=Multi \|combo_type=Function \|display=Switch-case function. First argument is the testable expression. Second argument is the default result. Each next pair of 2 arguments is a case value and a result value. When a pair's first argument matches the initial expression, that pair's second argument is returned. If no case matches, the default result is returned.}}
			{{Combo operators\|type=row\| combo_operator=COLOR \| \|category=Constant \|combo_type=Function \|display=Create a color given a red, green and blue value. A fourth alpha value is optional.}}
			{{Combo operators\|type=row\| combo_operator=RED \| \|category=Constant \|combo_type=Function \|display=Get a red channel value for a color.}}
			{{Combo operators\|type=row\| combo_operator=GREEN \| \|category=Constant \|combo_type=Function \|display=Get a green channel value for a color.}}
			{{Combo operators\|type=row\| combo_operator=BLUE \| \|category=Constant \|combo_type=Function \|display=Get a blue channel value for a color.}}
			{{Combo operators\|type=row\| combo_operator=ALPHA \| \|category=Constant \|combo_type=Function \|display=Get an alpha channel value for a color.}}

	{{Combo operators\|type=row\| combo_operator=NO_DATA \| \|category=Constant \|combo_type=Constant \|display=The NO_DATA value for grid data, indicating no data exists.}}		{{Combo operators\|type=row\| combo_operator=NO_DATA \| \|category=Constant \|combo_type=Constant \|display=The NO_DATA value for grid data, indicating no data exists.}}
	{{Combo operators\|type=row\| combo_operator=DX \| \|category=Constant \|combo_type=Constant \|display=The cell size in meters of this Combo Overlay.}}		{{Combo operators\|type=row\| combo_operator=DX \| \|category=Constant \|combo_type=Constant \|display=The cell size in meters of this Combo Overlay.}}