| Description: The lander_map_projection_name attribute provides the name of the map projection. |
| Namespace Id: cart | Steward: img | Class Name: Map_Projection_Lander | Type: ASCII_Short_String_Collapsed |
| Minimum Value: None | Maximum Value: None | Minimum Characters: 1 | Maximum Characters: 255 |
| Unit of Measure Type: None | Default Unit Id: None | Attribute Concept: None | Conceptual Domain: SHORT_STRING |
| Status: Active | Nillable: false | Pattern: None |
| Permissible Value(s) | Value | Value Meaning |
| | Cylindrical | This is an in-situ projection used for (non-stereo) panoramas. Each image row represents a constant elevation and each image column represents a constant azimuth, from a given point of view. The image scale in degrees per pixel is constant across the image. |
| | Cylindrical_Perspective | This is an in-situ projection that is a hybrid. Each column is a vertical slice from a pinhole camera (Perspective projection), while the columns are spaced evenly in azimuth (Cylindrical projection). It is most useful for viewing panoramas in stereo. |
| | Orthographic | This is an in-situ projection that is a generalization of the Vertical projection, in that any arbitrary projection plane can be specified. |
| | Orthographic_Lander | This is an in-situ projection that is a generalization of the Vertical projection, in that any arbitrary projection plane can be specified. |
| | Orthorectified | This is an in-situ projection that provides a true overhead view of the scene. Range data is required to create this projection, meaning there is no parallax distortion. It has a constant scale in meters/pixel. |
| | Perspective | This is an in-situ projection that models a pinhole camera. |
| | Polar | This is an in-situ projection that provides a quasi-overhead view that extends to the horizon. Elevation is measured radially outward from the nadir location, with a constant pixel scale. Azimuth is measured along concentric circles centered at the nadir. |
| | Vertical | This is an in-situ projection that provides an overhead view. By projecting to a surface model, the need for range data is eliminated, but significant layover effects can happen when the actual geometry does not match the surface model. It has a constant scale in meters/pixel, subject to layover distortion. |