Parameters of Chromaticity Coordinates Tool
With Chromaticity coordinates tool, you can view colorimetric data at the point on which the cursor is located.
With the first list of values, you can choose the units you want in the chromaticity diagram.
The link between xyY and u'v'Y coordinates systems is given by: u' = 4.x / (-2.x+12.y+3) v' = 9.y / (-2.x+12.y + 3)
Current Color
On the chromaticity diagram, you can zoom by drawing a rectangle.
L* is the average value of all the L* of the area.
Reference Color
You can select the Reference color check box to set a reference color and to calculate the DeltaE between reference color and selected color.
Colorimetric Data 3D
The Colorimetric Data 3D button allows you to display a 3D representation of the colorimetry map.
Refer to 3D Colorimetric Data chapter for more details.
CLS File
By right-clicking on the diagram, you can display contextual menu and choose to display some information.
By clicking Standard, Select standard..., you can display Colorimetric Standard File (*.cls) box.
By double-clicking on directories, you can select a .cls file.
The definition of a standard is stored in a .cls file. The installation creates some .cls files in C:\ProgramData\Ansys\v2XX\Optical Products\Colorimetry directory.
CLS File format is the following for a definition with line equations.
Line 1
This is a header line. OPTIS standard color v1.0
Line 2
This is a comment line as the standard description. SAE J578 June 27th
Line 3
This line is the definition with line equations. 0
Line 4
This line is the number of areas. 7
Line 5
This line is the name of first area. Selective Yellow
Line 6
The colorimetric diagram is a limit of the area. 1
Line 7
The line is the number of lines without limits given by the colorimetric diagram. 3
Line 8, 9, 10
The lines are operators a and b. Operators a and b correspond to the line equation y= ax+b. Operators < and > give the position of the area regarding the line. Use = for x = constant, for example = 0.5 0 for x=0.5. > 0.58 0.14> -1 0.97>1.29 -0.1
N Lines
Next lines are for the next area as described from lines 5 to 10.
CLS File format is the following for a definition with list of vertexes.
Line 1
This is a header line. OPTIS standard color v1.0
Line 2
This is a comment line as the standard description. MIL-S-22885/101C
Line 3
This line is the definition with list of vertices. 1
Line 4
This line is the number of areas. 7
Line 5
This line is the name of first area. Red
Line 6
The colorimetric diagram is a limit of the area. 1
Line 7
The line is the number of vertexes. 4
Line 8
The line is the (x,y) of first vertex. 0.665 0.334
Line 9
The line is the (x,y) of second vertex. 0.659 0.335
N Lines
Next lines are for the (x,y) of the next vertex and then lines for the next area as described from lines 5 to 9.