TSMAD20/DIPWG2-08.2A
S-100 SYMBOL MODEL
DIPWG-2
May 2010
The S-100 Symbol Model
Taking into account the previously proposed model, the new implementation
does not deal with the graphic definition of shape’s symbols.
The FIRST objective for the register is to be able to generate the equivalent
of the current S-52 “symbol addendum” with a minimum of information
(metadata, bounding box, pivot point, colors used, line style used, etc.)
Manufacturers can build their own “library” of symbols in conformance with
information supplied by the “symbol addendum.”
The portrayal catalog will supply metadata information for symbols used by
the portrayal function.
The S-100 Symbol Model
The S-100 Symbol Model defines symbol structure
taking into account their type :
“Color Symbol Part”
“Simple Line Style Symbol Part”
“Shape Symbol Part”
“Point Symbol Part”
“Complex Line Style Symbol Part”
“Pattern Symbol Part”
“Text Symbol Part”
The S-100 Point Symbol Part
Graphic elements do not become part of the model,
only bounding box, the pivot point ,colors referenced
and an overview of the shape’s symbol will be
supplied, as they are in the current addendum)
CATALOG SUB MODEL
SYMBOL SUB MODEL
REFERENCE SUB MODEL
GRAPHIC SUB MODEL
The S-100 Color Model
The S-100 Color Model
(Color Graphic Instructions)
A S100_ColorSymbol may be defined in
two color spaces (at least one) with the
help of ColorGraphicInstructions
elements.
The CIE color definition and the RGB
color definition.
The ideal encoding is to definite it with
its X, Y, Luminance CIE coordinates and
let the ECDIS manufacturers convert CIE
to RGB color coordinates, following the
color calibration of the CRT monitor.
The ColorGraphicInstructions enables
linking color definitions to an illumination
condition (this attribute is mandatory).
The S-100 Color Model
(Reference)
The reference for color symbol enables the possibility of specifying a transparency value.
float value [0-1]
EXAMPLE
0 means no transparency
0.25 means 25% transparency
0.50 means 50% transparency
0.75 means 75% transparency
1 means a full transparency
The S-100 Simple Line Style Model
The S-100 Simple Line Style Model
(Graphic Instructions)
Only basic definitions (SOLD, DASH) of simple
line style are registered in this version
The definition of a “DASH” line style has been improved by adding
the possibility to define a sequence of graphic marks:
•DashGraphicMarkLength - the length of dash segments.
•DashGraphicMarkSpace - the space between two dash segments.
•DashGraphicMarkStart - the space for starting the first dash segment
(== offset).
Extract from PL 3.4 (7.3.5 Parameters)
Here the definition of the unique dash line in the current PL:
'DASH' (- - - - -) dash: 3.6 mm; space: 1.8 mm
'DOTT' (.........) dot: 0.6 mm; space: 1.2 mm
The S-100 Simple Line Style Model
(Reference)
To reference a simple line style you have to specify :
1.
2.
Color Reference (mandatory)
Width (mandatory)
The reference has been improved to allow for
rendering the aspects of cap and joined segment
The S-100 Point Symbol Model
(Overview)
The S-100 Point Symbol Model
(Point Graphic Instructions)
The S-100 Point Symbol Model
(Shape ,Point Symbol and Reference)
The S-100 Pattern Symbol Model
(Overview)
The S-100 Complex Line Style Symbol
Model
The S-100 Text Symbol Model
The S-100 Coordinate Reference
System For Graphics
The S100_Graphic Coordinate Reference System.
The coordinate of pivot point and the coordinates of graphics (used by graphics to define a shape) must
reference a common “Coordinate Reference System” named S100_GraphicCRS :
•The “S100_GraphicCRS” has two dimensions (X,Y)
•The xAxis originates from the left side of the bounding box. The direction is DISPLAY_RIGHT. The unit is
0.01 mm (eg 100 = 1 mm)
•The yAxis originates from the top side of the bounding box. The direction is DISPLAY_DOWN. The unit is
0.01 mm (eg 100 = 1 mm)
•The unit for « width » of line style is 1 mmn.
X
0
Shape
Y
Pivot
Point
Bounding
Box