Location

In this editor you may change the physical properties for an actual location.

1. Physical constants

Options :

  • Acceleration of gravity

  • Water density

  • Air density

  • Kinematic viscosity in water

  • Kinematic viscosity in air

2. Water depth

  • Kinematic water depth : This parameter is used in calculation of water particle motions.

If Kinematic water depth is set to a large value, infinite water water depth theory will be used.
The wave kinematic will be zero below the kinematic water depth.
The hydrodynamic loads below the kinematic water depth will include the load due to current and motions in still water.

3. Global orientation

  • Relative compass angle : This is the relative angle measured from the global x-axis to the compass North. That is the angle is in the anti-clockwise direction.

If Relative compass angle = 0deg, the global coordinate reference system x-axis is aligned toward compass North.
If Relative compass angle = 90deg, the global coordinate reference system y-axis is aligned toward compass North.

4. Sea surface

Specification of the position and size of the sea surface using

  • Center X and Center Y : center of the surface

  • Size X and Size Y : Size/extension of the surface in x- and -y-direction

  • Specification of Color and Transparency of the sea surface

  • Specification of Mesh (on/off) and Mesh grid Size

  • Specification of mesh for long crested waves using

    • Length : Length of long-crested wave field

    • Width : Width of long-crested wave field

    • Num point : Number of points in the long-crested wave field

5. Bottom

5.1. Flat bottom

  • Z : depth of the surface

  • Center X and Center Y : center of the surface

  • Size X and Size Y : Size/extension of the surface in x- and -y-direction

  • Angle : Rotation w.r.t. y-axis

The input below is for the visualization only.
  • Specification of Color and Transparency of the surface

  • Specification of Mesh (on/off) and Mesh grid Size

5.2. Regular 3D bottom

Specification for 3D bottom:

6. Infrastructure

Option to specify a number of geometries defined by

  • X, Y, Z : Location of the global reference system

  • Rx, Ry, Rz : Euler angles, rotation about x-, y-, and x-axis.

6.1. Geometry

Choose

  • Type (Select option in the drop down menu)

  • Transparency

Specify Dimensions, Translation and Color. The input is dependent of geometry type.

This input is for the visualization only.

7. View point

Used to specify the camera view the model in the 3D view.

Multiple view points can be defined and activated.

  • Name : center of the surface

  • Eye X , Eye Y and Eye Z : Location of the camera in global coordinates, unit [m].

  • [Dir X,Dir Y,Dir Z] : This vector defines the camera direction, units[-].

  • [Up X , Up Y,Up Z] : The UP vector is defining the rotation of the camera, units[-].


  • Activate this view point:

    • Activate a this camera viewpoint.

    • The selected viewpoint can be seen by choosing a 3D view of a model.


camera viewpoint
Figure 1. Definition of camera view point
The View point input is for the visualization only.