Module category: IO

• GenDat
  • Parameters
  • Input Ports
  • Output Ports
  • Examples

GenDat

GenDat creates a chunk of a regular grid. It generates meshes based on carthesian and cyclic coordinates.

GenDat is mainly used as a generator of test and reference data.

Gen Dat is available in all versions of COVISE.

Parameters

Name	Type	Description
Coord_Type	Choice	Select the kind of coordinates used. Uniform and Rectilinear chose carthesian coordinates which are distinguished according their metric (equidistant or arbitrary non-equidistant). Half_cycl and Full_cycle use zylindric coordinates with a polar angle in the range of [0... pi] for Half_cycle and [0... 2pi] for Full_cycle. Random creates a random mesh. The option Torus uses zylindric coordinates where the points corresponding to the minimum and maximum value of the z-coordinate are connected.
Coord_Representation	Choice	This parameter is only effective for the carthesian systems. It determins the COVISE data structure which is used for output. If a Coord_type different from Uniform or Rectilinear is checked structured grid-data appears at the corresponding output-port.
Coord_Range	Choice	Parameter which determins the extension of the generated grid. It selects the range for the generated cordinates (i.e. the unit).
Function	Choice	Chose the function which is used to generate scalar data: Sines
Ramps	f(x,y,z) = mod3(x) + mod3(y) + mod3(z)
Random	uniformly distributed random numbers
Pipe	f(x,y,z) = sin(x)sin(y)
Orientation	Choice	Chose the type of vector data attached to each point of the grid: Opt1
Colin	hedge hog field fi(r) = ri, i=x,y,z
Opt3	eddy
Random	random orientations
xSize	Scalar	extension of grid in x-direction or (number of intersections of the x-interval [-1..1] -1) if Coord_Range -1..1 is chosen.
ySize	Scalar	see above
zSize	Scalar	see above
start	Vector	lower left point of the grid
end	Vector	upper right point of the grid
timestep	Scalar	not used in current version
color	String	sets the color attibute of the generated grid

Input Ports

none

Output Ports

Name	Type	Description
outputGrid	UniformGrid RectilinearGrid StructuredGrid	generated grid according to the Coord_Representation parameter
dependScalar Data	Float	generated scalar data according to the Function parameter
dependVector Data	Vec3	generated vector data according to the Orientation parameter

Examples

Figure: GenDat.net

The ouput on the Open Inventor Renderer is shown in the next picture.

Figure: Renderer output of GenDat.net