Within the Projection Control frame, the mechanics of a projection, such as type and direction, are specified:
Use options in the Projection Control frame to set up type, direction and more.
- Type: Refers to the type of projection to be performed. Four different projection methods are available, each with its own advantages as
described in the Types section. The naming convention for the projection methods is based loosely on analogies with
coordinate system types. Each method, however, is simply a ray-surface intersection calculation. The methods differ in how the rays are cast.
Note: The projection type selected for the Project command will be stored as an attribute of a domain so that when
using Grid, Solve, the Projection Method will default to the same.
- Direction: Allows you to specify which direction the projection should take. This control depends on the relative position of the grid and
database. The options are:
- In: Sets grid points to be projected onto the first database encountered along a line starting from infinity and continuing toward the
- Out: Sets grid points to be projected onto the first database encountered along a line starting at the source specified, going through the
grid point and continuing on to infinity.
- Project Points: Allows you to project not only the shape but also the grid points of a connector on the target database surface. This option
is disabled if the entity to be projected is a database curve.
- Project Shape: Allows you to project only the shape of a connector on the target database surface while retaining its original grid point
distribution function. This option is disabled if the entity to be projected is a database curve.
- Interior Only: Allows you to project only the interior points of a domain or connector on only the interior of a database surface. If, for
example, your domain's connectors are already database constrained (e.g., Line on DB segment types) you should probably check this option. Otherwise, your
Line on DB segments will be replaced by General segments.
Examples of the directional arrows mentioned above can be seen in green in the figures shown in the Types section.