EOIR Texture Maps

You can add texture maps and specify their associated parameters in EOIR. Click Atmosphere and Textures... from the EOIR Configuration window and select the Texture Maps tab.

Create, copy, delete, and prioritize texture maps using the following toolbar buttons at the top of the dialog box:

Button	Name	Function
	NewTexture Map	Creates a new texture map.
	Cut Texture Map	Removes the currently selected texture map from the list and copies it to the clipboard.
	Copy Texture Map	Makes a copy of the currently selected texture map to the clipboard.
	Paste Texture Map	Inserts a copy of the texture map that is currently on the clipboard.
	Delete Texture Map	Deletes the currently selected texture map.
	Move Texture Map Up in Priority	Moves the currently selected texture map over the one above it, making it a higher priority than that one.
	Move Texture Map Up in Priority	Moves the currently selected texture map under the one below it, making it a lower priority than that one.

The texture maps list displays the maps in priority order from top down, as you can see by the priority number on the left. This means that a map will take precedence over other maps of the same Type with lower priority, which STK needs to know if the maps overlap.

For each texture map in the list, you can either select the Show check box to make the map effective for the configuration or clear the Show check box to remove the effects of that texture map. This is particularly useful in testing with different background conditions and creating time-varying background effects.

Select either an existing texture map to modify or one that you just created. Then you can define the following parameters:

Parameter	Description
Name	If you are adding a texture map, enter its name in this text box. You can also modify an existing map's name.
Type	Select one of the following options: Emissivity, as a percentage Radiance, in W/(cm2 sr um); this is spectral radiance Reflectance, as a percentage Temperature, in degrees Kelvin Then select below this the source of the value(s): Value: Specify a constant value in the text box. File: Browse to and select the CSV file with the values for this type. Values should form an N-by-M grid. STK will apply the first row of M values evenly from west to east across the northern boundary of the map. It will apply each row evenly in descending latitude, with row N across the southernmost boundary.
Wavelength Start	Specify the value of the lower limit of wavelength for the map. This parameter does not apply if you select Temperature as the Type.
Wavelength Stop	Specify the value of the upper limit of wavelength for the map. This parameter does not apply if you select Temperature as the Type.
NW Corner, NE Corner, SW Corner, SE Corner	For each texture map, specify the lattitude and longitude for each of the four corners, to define the map boundary.