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3.3. ATTRIBUTES

Line types SOLID (1), DASHED (2), DOTTED (3), DASHED-DOTTED (4)
Linewidth fixed
Line shading method no
Hardware marker types DOT (1), PLUS (2), ASTERISK (3), CIRCLE (4), CROSS (5)
Software marker types -1 to -95
Marker size fixed for hardware markers continuous for software markers
Interior style HOLLOW, SOLID (*), HATCH, EMPTY
Polygon holes yes
Data mapping method yes
Reflectance model yes
Facet distinguish yes
Facet culling yes
Interior shading method NONE
Light source types AMBIENT, DIRECTIONAL, POSITIONAL, SPOT
Edge types See Line types
Edgewidth See Linewidth
Hardware text fonts no (GPHIGS uses font -3 when hard font is requested)
Software text fonts -1 to -72
Text precision STRING, CHAR, STROKE
Maximum NUBS curve order Unlimited
Curve approximation criteria type All
Maximum NUBS surface order Unlimited
Surface approximation criteria type CONSTANT PARAMETRIC SUBDIVISION BETWEEN KNOTS
Trimming curve approximation criteria type All
Maximum trimming curve order Unlimited
Parametric surface characteristics types ISOPARAMETRIC CURVES
Depth cueing yes
COLOR mapping methods PSEUDO 3 PSEUDO, TRUE, PSEUDO
Rendering COLOR models RGB
COLOR model RGB, HLS, HSV
HLHSR modes PAINTER (2)

Note : (*) If workstation type is one of the HPGL II types, polygon filling is realised by HPGL II. Otherwise, GPHIGS simulates polygon filling by a scanline algorithm. This can produce very large files.


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