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The overall structure and layout of the interface is exactly what a Windows user will expect. It uses the same familiar operations as other Windows applications. Toolbars, pop-ups, boxes and the full range of user operations all conform to widely understood principles and protocols. Learning to use Henry is very straightforward for anybody familiar with other Windows applications.
Object editing
Henry can accommodate a range of objects input and maintained by the user. Their management is very straightforward and quickly grasped.
Points
Symbols and annotations can be placed on any chart and for many purposes (ranging from simple markers to holders of information such as text or graphics). Range rings with associated display properties and alarm conditions can be attached to any point.
Lines
Displayed as Great Circles, Rhumb lines or both these can be used for tasks like parallel indexing and clearance bearings. Magnetic variation and ships deviation are calculated automatically so position lines are easy to mark. Lines can also be attached to moving objects such as ARPA targets.
Boundaries
Areas of almost arbitrary shape and complexity can be marked out, displayed and annotated in different ways. Alarm conditions can be associated with each boundary.
Powerful displays
Configurable Output
Information outputs can be configured to the users own needs. For example, geographical position can be shown on the WGS84 datum or on other local horizontal datums. Positions can be formatted in many ways: geodetic (degrees and minutes etc) or grid (e.g. UTM or British National Grid). Distances, heights, depths and speeds can be displayed in metric or imperial units. Bearing can be handled in degrees, degrees and minutes or mils.
Chart Catalogue
Henry has a view dedicated to displaying the coverage of charts in their correct geographical relationships, superimposed on the World Vector Shoreline. This makes it faster and easier to bring up get a chart of the desired area, type and scale.