3D Settings Page - Prism Maps

View and lighting properties for a prism map are located on the 3D Settings page in the Property Manager.

 

 

View

The View section of the 3D Settings page changes the view of the prism and changes the prism map scale. The Rotate Prism command changes the properties in the View section interactively with the mouse or keyboard. Click the Perspective 3D projection check box to change the projection from orthographic to perspective. Change the Eye distance for a Perspective 3D projection by typing a percent value into the Eye distance field or by clicking and dragging the .

 

Change the prism map Tilt and Rotation by typing a value in degrees into the Tilt and Rotation fields. The values can also be adjusted by clicking and dragging the . The Tilt varies from 0 degrees to 90 degrees. The Rotation varies from 0 degrees to 359 degrees.

 

Change the scale of the prism map by typing a percent value into the Scale prism map field or clicking and dragging the .

 

Lighting

Enable lighting and edit light position and properties in the Lighting section of the 3D Settings page. The prisms reflect color when the Enable lighting box is clicked. Also, when Enable lighting is active, the Horizontal, Vertical, and Make prisms emissive properties are available for editing.

 

The Horizontal box defines the direction for the light source in the horizontal plane. A horizontal angle of zero degrees corresponds to the light source shining from due east. Positive angles rotate the light source counterclockwise. For example, a horizontal angle of 90 degrees places the light source located due north of the topographic surface. Type a value in degrees into the Horizontal field or click and drag the to set the Horizontal direction.

 

The Vertical box rotates the light source in the vertical plane. A vertical angle of zero degrees places the light source at the horizon. An angle of 90 degrees places the light source directly overhead. As the vertical angle approaches zero, shadows lengthen and the overall display shifts to the colors at the left end of the color spectrum. Type a value in degrees into the Vertical field or click and drag the to set the Vertical direction.

 

Click the Default button to reset the Horizontal and Vertical properties to default values.

 

Click the Make prisms emissive check box to make the prisms emit light.

 

 

See Also

Prism Map

Rotate Prism