# Vertical Near-Side Perspective

## Description

Unlike the orthographic projection, this perspective projection views the globe from a finite distance. This perspective gives the overall effect of the view from a satellite.

Learn about the Orthographic projection

## Projection method

Planar perspective projection—viewed from a specified distance above the surface. All aspects are either circular or an area less than a full hemisphere.

- Polar aspect—meridians are straight lines radiating from the center, and the lines of latitude are projected as concentric circles that become closer toward the edge of the globe.
- Equatorial aspect—the central meridian and the equator are straight lines. The other meridians and parallels are elliptical arcs.

## Point of contact

A single point located anywhere on the globe.

## Linear graticules

- All aspects—the central meridian of the projection.
- Equatorial aspect—the equator.
- Polar aspect—all meridians.

## Properties

### Shape

Minimal distortion near the center; maximal distortion near the edge.

### Area

Minimal distortion near the center; maximal distortion near the edge.

### Direction

True direction from the central point.

### Distance

The radial scale decreases with distance from the center.

## Limitations

Limited to a view less than 90° from the central point.

## Uses and applications

Uses of this projection are aesthetic more than technical. The most commonly used aspect for this purpose is the oblique.

## Parameters

### Desktop

- False Easting
- False Northing
- Longitude of center
- Latitude of center
- Height

### Workstation

- Radius of the sphere of reference
- Height of perspective point above sphere
- Longitude of center of projection
- Latitude of center of projection
- False Easting (meters)
- False Northing (meters)

Supported on spheres only.