Geometry Modeling > Create Actions > Creating Coordinate Frames
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Creating Coordinate Frames
Creating Coordinate Frames Using the 3Point Method
The 3Point method creates a rectangular, cylindrical or spherical coordinate frame by specifying three point locations. The point locations can be points, vertices, nodes or other point locations provided on the Point select menu. For more information, see Overview of Create Methods For Coordinate Frames.
More Help:
Select Menu (p. 35) in the Patran Reference Manual
Topology
Coordinate Frame Definitions
Coordinate Frame 3Point Method Example
Creates a cylindrical coordinate frame, Coord 100, using the Create/3Point method. Its origin is located at [0,0,0]; a point on its Z axis is at [0,0,1]; and a point on the R-Z plane is at [0,0,1]. The coordinate values are expressed within the global coordinate frame, Coord 0.
Coordinate Frame 3Point Method Example
Creates a cylindrical coordinate frame, Coord 200. Its origin is located at Point 8; a point on its Z axis is at [x8 y8 2] (which is at the X and Y coordinates of Point 8 and at Z=2); and a point on the R-Z plane is at Point 6.
Creating Coordinate Frames Using the Axis Method
The Axis method creates a rectangular, cylindrical or spherical coordinate frame by specifying three point locations for the coordinate frame’s origin, at the first, second or third axis and on one of the remaining two axes. The point locations can be points, vertices, nodes or other point locations provided on the Point select menu. See Overview of Create Methods For Coordinate Frames.
Tip: More Help:
Select Menu (p. 35) in the Patran Reference Manual
Topology
Coordinate Frame Definitions
Coordinate Frame Axis Method Example
Creates a rectangular coordinate frame, Coord 100, using the Create/Axis method. Its definition is expressed within the rectangular coordinate frame, Coord 0; its origin is located at [0,0,0]; a point on its X axis is at Point 20; and a point on its Y axis is at Point 12.
Creating Coordinate Frames Using the Euler Method
The Euler method creates a rectangular, cylindrical or spherical coordinate frame through three specified rotations about the axes of an existing coordinate frame. See Overview of Create Methods For Coordinate Frames.
Tip: More Help:
Select Menu (p. 35) in the Patran Reference Manual
Topology
Coordinate Frame Definitions
Coordinate Frame Euler Method Example
Creates a spherical coordinate frame, Coord 200, using the Create/Euler method. Its definition is expressed within the rectangular coordinate frame, Coord 100; its origin is located at Point 14 and it is rotated 45 degrees about Coord 100’s X axis.
Rotation Parameters Subordinate Form Example
The Rotation Parameters subordinate form appears when the Rotation Parameters button is pressed on the Geometry Application Create/Coord/Euler form. See Creating Coordinate Frames Using the Euler Method.
This form allows you to define up to three rotations to be performed about the specified Reference Coordinate Frame axes. The rotations are performed in sequence from top to bottom on the form.
Creating Coordinate Frames Using the Normal Method
The Normal method creates a rectangular, cylindrical or spherical coordinate frame with its origin at a point location on a specified surface or solid face, and its axis 3 direction normal to the surface or face. The coordinate frame’s axis 1 direction can be aligned with the surface’s or face’s parametric direction, and its axis 2 direction will be aligned with the direction or visa versa. See Overview of Create Methods For Coordinate Frames for more information.
You can plot the parametric and directions by pressing the Parametric Direction button on the Geometric Properties form under the Display/Display Properties/Geometric menu.
Tip: More Help:
Select Menu (p. 35) in the Patran Reference Manual
Topology
Coordinate Frame Definitions
Display>Named Attributes (p. 400) in the Patran Reference Manual
Coordinate Frame Normal Method Example
Creates a rectangular coordinate frame, Coord 1, using the Create/Normal method whose Z axis is normal to Surface 2 and its origin is at Point 16. Notice that Coord 1’s X and Y axis are aligned with Surface 2’s and directions.
Coordinate Frame Normal Method On a Face Example
Creates rectangular coordinate frame, Coord 2 at Point 17, whose Z axis is normal to the top face of Solid 1.
Creating Coordinate Frames Using the 2 Vector Method
The 2 Vector method creates a rectangular, cylindrical or spherical coordinate frame with its origin at the designated location. Two of the through coordinate frame axes are defined using existing vectors; their directions are imposed at the selected origin and the new coordinate frame is then created.
Creating Coordinate Frames Using the View Vector Method
The View Vector method creates a rectangular, cylindrical, or spherical coordinate frame at the designated origin, using the Euler angles that define the current model orientation within the graphics viewport.