Skin

The Skin primitive causes two or more cross-sections defined by the Data points to be connected by a surface, or skin.

The NumFrames, NumFramePts, and Data parameters must be specified in a Skin primitive.

Skin primitive parameters

NumFrames <Value>

Parameter	<Value>
Range	> 2
Default	N/A
(R)eal #, (I)nteger?	I
Description	Number of cross-sections used to draw the skin.

NumFramePts <Value>

The NumFramePts parameter defines the number of cross-sections contained in the Data parameter.

Parameter	<Value>
Range	> 2
Default	N/A
(R)eal #, (I)nteger?	I
Description	Number of points used in each cross-section.

Data < x> < y> < z>

Each row in the Data parameter specifies one point of the Skin.

When defining a Skin primitive, the Data keyword must be on a line by itself. In addition, each point (defined by < x>, < y>, and < z>) of the Skin must be on a line by itself.

Parameter	<Value>
Range	any real #
Default	N/A
(R)eal #, (I)nteger?	R
Description	X, Y, and Z positions for each of the vertices specified in the two frames.

OpenFrame

Parameter	<Value>
Range	N/A
Default	Frame closed
(R)eal #, (I)nteger?	N/A
Description	If included in the primitive, the first and last data points are not connected.

The CAPESTGEORGE.mdl model uses the Skin primitive to define the forward deck house:

Component FwdSprStr

Skin
Translate 265.0 0.0 22.0
FaceColor gray50
NumFrames 3
NumFramePts 5
Data
70.0 25.0 0.0
106.5 24.0 0.0
106.5 -24.0 0.0
70.0 -25.0 0.0
70.0 25.0 0.0
70.0 25.0 19.5
106.5 24.0 24.0
106.5 -24.0 24.0
70.0 -25.0 19.5
70.0 25.0 19.5
70.0 17.0 39.5
100.5 17.0 39.5
100.5 -17.0 39.5
70.0 -17.0 39.5
70.0 17.0 39.5
EndSkin

EndComponent

The total number of points provided should be NumFrames multiplied by the NumFramePts.