ColorFromName

MLModule

author	Wolf Spindler
package	FMEwork/ReleaseMeVis
dll	MLColorFromName
definition	MLColorFromName.def
see also	ColorModelConverter, ColorTable, ChangeLUTColor, ColorMatrix, SoLUTEditor
keywords	color, colour, assign, regular, expression, data, base

Purpose

The ColorFromName editor allows the definition of regular expressions with colors and transparencies. These expressions are checked against the string from Input String To Filter and - if any of the expressions match - assign a the color to that string. The matching expression, color, and transparencies as well as a status field are available as output fields such that they can easily be used to propagated them to other modules and fields via field connections.

Notes:

• The first matching expression is used and set in the matching fields.
• Therefore it is useful to add the specific expressions first and the general expressions at the end of the list.
• Using ‘.*’ as final expression can be useful to define a default color for all non matching strings.

Windows

Default Panel

Parameter Fields

Field Index

Add Color Row: Trigger	Is Valid: Bool
Color Row Index: Integer	Matching Alpha: Float
Current Color: Color	Matching Color: Color
Current Filter Expression: String	Matching Color Expression: String
Current Transparency: Float	Move Row Down: Trigger
Delete Color Row: Trigger	Move Row Up: Trigger
Expressions And Color List: String
Input String To Filter: String

Visible Fields

Current Filter Expression

name: currentColorExpression, type: String, default: .*

The editable regular expression objects set in the current selected row by Color Row Index.

Current Color

name: currentColor, type: Color, default: 0 0 0

The editable color set in the current selected row by Color Row Index.

Current Transparency

name: currentTransparency, type: Float, default: 0, minimum: 0, maximum: 1

The editable transparency set in the current selected row by Color Row Index.

Add Color Row

name: addColorRow, type: Trigger

Inserts a new expression with the values from Current Color and Current Transparency at Color Row Index.

Delete Color Row

name: deleteColorRow, type: Trigger

Removes the row indexed by Color Row Index.

Move Row Up

name: moveRowUp, type: Trigger

Moves the selected row one line up, or - if it is at top position - to the end of the list. CTRL-Up is the keyboard accelerator for this.

Move Row Down

name: moveRowDown, type: Trigger

Moves the selected row one line down, or - if it is at last position - to the beginning of the list. CTRL-Down is the keyboard accelerator for this.

Color Row Index

name: colorRowIndex, type: Integer, default: 0

Indexes the currently edited row in expression + color + transparency list.

Expressions And Color List

name: expressionsAndColorList, type: String

The list of regular expressions with editable colors with lines of type ‘expr ## R G B A’ with R,G,B,A from [0,1].

Input String To Filter

name: inputStringToFilter, type: String

The input string to be filtered with the regular expressions and from which the color and transparency shall be determined.

Matching Color Expression

name: matchingColorExpression, type: String

Output string showing the regular expression from the Expressions And Color List if any is matching, otherwise set to an empty string.

Matching Color

name: matchingColor, type: Color, default: 1 1 1

Output field showing the color from the Expressions And Color List if any is matching, otherwise set to white.

Matching Alpha

name: matchingAlpha, type: Float, default: 0

Output field showing the transparency from the Expressions And Color List if any is matching, otherwise set to 0.

Is Valid

name: isValid, type: Bool, default: FALSE

Boolean set to true if any expression from Expressions And Color List is matching, otherwise set to false. It is set after all other matching fields are set.