- Positions
- An array containing new positions (in the order x, y, z) for the polyline.
- Colors
- An array containing the numeric representation of colors for
the polyline. There must be one color for each position in
positions. The first color is ignored, each additional color
defines the color of the line segment ending at that position. In
.NET a Color should be translated to a number by calling its
ToArgb
method and casting the result as an unsigned integer.
This call overwrites the primitive's previous positions and per-position colors. To update a subset of positions and colors, use SetPartial.
If the polyline's Position
Interpolator is not null
, positions are
interpolated before they are rendered. If the polyline's Polyline
Type is LineStrip
, for each position after the
first position, a line segment is rendered that connects the
position to the previous position. Otherwise, if Lines
is used, a line segment is rendered for every two positions.
Each color in colors corresponds to a position in positions with the same location. For example, the first color in colors is applied to the first position in positions. These colors override the primitive's Color and Translucency properties. Accessing these properties will result in an Invalid Operation Exception.
To create translucent line segments, use the Color's alpha component. An alpha of 0 is completely transparent and an alpha of 255 is completely opaque.
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