3D Graphics Properties - Vector

Use to:

  • Control the display of vectors and other geometric elements, such as axes and angles, related to the Earth or other central body in the selected 3D Graphics window.
  • Control the display of vectors and other geometric elements related to the selected object.

Name. This table column lists all of the following geometric elements available for display.

    Planes

    Axes

    Points

    Angles

    Vectors

The elements available depend on the object or window for which Vector properties are being defined.

Show. Displays the geometric element in the 3D Graphics window and enables you to modify the following display options.

Options

Use to define the display of geometric elements in the 3D Graphics window. To edit the properties of a geometric element, select it and select Show. The properties for the selected element display to the right of the table.

Show Label. Displays a text label with the selected geometric element.

Axes/System. The name of the axes or system used to define the coordinate frame associated with the selected vector or axis is displayed in the text box. Use the button to access the Reference Axes/System Selection window where you can choose the axes/system that defines the coordinate frame to which the display options are applied.

Draw at Central Body/Object. Only available for geometric elements relating to objects. If selected, the geometric element is drawn at the central body.

Draw at Point. If selected, the geometric element is drawn at the selected point. Only available for vectors ()and axes (). When the Draw at Point option is used for vectors or axes on objects, the Level of Detail (LOD) values will be ignored.

Thickness.The thickness of a vector or axes in pixels.

Show Axis Labels. Displays labels for the selected axis. Only available for planes ().

Size. Size of the selected geometric plane or point. Only available for planes () and points ().

Translucent Plane. If enabled, the plane is see-through; otherwise it is opaque. Only available for planes ().

Translucency. Use the slide control to set the translucency of the plane. Translucency can be adjusted from 0 to 100 percent, where 100 percent is completely invisible. Only available for planes ().

Show RA-Dec. Displays right-ascension and declination values with the selected vector. Only available for vectors ().

Show Distance. Displays the distance value. Only available for points ( ).

Show Cartesian. Displays the cartesian orbital values for the selected point. Only available for points ( ).

Show Angle Value. If selected, choose a unit from the drop-down menu. Only available for angles ().

Show Dihedral Angle Supporting Arcs. If selected, displays the supporting arcs for the dihedral angle. Only available for dihedral angles ().

Show Magnitude. If selected, the magnitude value is displayed on the selected geometric element. Select a unit from the drop-down menu. Only available for vectors ().

Use True Scale. If selected, displays vectors at their true length. Only available for vectors represented in distance units.

Color. Specifies the display color for the selected geometric element.

Trajectory. Specifies one of the following graphics that will represent the trajectory of the point over time. (Only available for points ).

    Point. Displays a point at the current animation time.

    Trace. Displays a sampled trajectory of a point. This sampled trajectory displays where the point is over time without animating the scenario.

    Line. Displays a line connecting all sampled points in the trajectory and displays lines from each sampled point in the trajectory to the center of the reference coordinate system in which the trajectory is computed.

Display Times button. Click to access the Vector Geometry Components Display Times window. This window enables you to control the time periods when geometric elements display.

Persistence

Use to control the way in which geometric elements appear in the 3D Graphics window as animation time elapses and the position of those elements change.

Show. Successively displays geometric elements over the specified duration.

Duration. The length of time during which the geometric element is visible.

Fade. If selected, earlier occurrences of a geometric element display fade over time so that it is drawn as completely filled at the most recent animation time and fades as the animation moves forward.

Connect. Specifies the method used for connecting geometric elements.

  • Sweep - A continuous band of color represents the path of the element.
  • Line - A line is drawn at every time step representing the position of the element.
  • Trace - A single-line arc represents the path of the element.

Plane Grid

Select whether to show a rectangular grid, a circular grid, or neither. If you select to display a grid, you can also specify the spacing between grid points. Only available for planes ().

Common Options

Certain options are applied to all geometric elements and cannot be set individually.

Component Size

Use to set the size of geometric elements in the 3D Graphics window. The options available for sizing geometric elements relating to certain objects are slightly different than those available for geometric elements related to the Earth (or other Central Body). If the geometric elements are related to the Earth (or other central body), Scale is the only option available. If the geometric elements are related to an object, additional options may be available.

This setting has no effect on the display size of B-Planes.

Scale to Attitude Sphere. If selected, scales the size of the vector to correspond to the size of the attitude sphere.

Scale Relative to Model. Only available for vectors relating to objects. If selected, the vector scale is tied to the model scale; this means, that if you change the value of the model scale, the value of the vector scale is automatically updated with a value proportionate to the model scale value. The size of the vector will go up and down as you increase and decrease the size of the model. You can still change the value of the vector scale (with the slider or the textbox).

Scale. If the Scale Relative to Model is selected, the scale of the model is used to set the size of the vectors. If the Scale Relative to Model is not selected, you can set the size of the vectors independent of the model scale.

Angle Size

Use the text box or slider to set the scale of angles relative to vectors in the 3D Graphics window. The scale is linear. The angle size is multiplied by the vector scale. For example, if you set the angle size to 1, the angle will be the same size as the vector. If you set the angle size to 2, the angle size will be twice the size of the vector.

How To. . .