Brunton Multi-Navigator Spezifikationen PDF herunterladen (Seite 233)

What if I only have a basic graphics card and my maps rotate slowly

If your system does not have a graphics card with hardware acceleration, the

software will perform slowly. The reason for this is that although most Windows

users will have access to a software implementation of OpenGL, it uses the CPU

(instead of a dedicated graphics card) to render 3D graphics. Windows 95B

(OSR2/2.1), Windows 98 and Windows NT 4.0 all ship with Microsoft software

implementations of OpenGL.

If you select "Wire Frame Rotate" in OziExplorer3D configuration, the software will

operate better on your system when you drag or rotate your map. Use of smaller

map sections with less vertices will improve performance.

Will 3D graphics cards improve the performance of OziExplorer3D

Yes, if you have a graphics card with built-in opengl 3D support you will get an

improved performance from one without. However, you should obtain specialist

advice on which graphics best suits.

FAQ

I have DEM files which are projected in the local Grid and map datum, how can I use

these.

OziExplorer has the ability to specify the grid and datum being used, see the

Height

Data help

(bottom of the page) for information on how to do this.

When I select the "whole map" my computer is very slow.

1. Try selecting a smaller section of the map, some computer systems will not be

able to handle selection of the whole map, particularly if the map is large.

2. Reduce the number of vertices. Some computer systems will slow down if you

have 10,000 or more vertices.

3. If you select "Wire Frame Rotate" in OziExplorer3D configuration, the software

will operate better on your system when you drag or rotate your map.

My track elevation does not correspond with the map elevation pattern (shape).

1. The height datum of the track elevation data and the DEM elevation data may be

different.

2. The map will show the elevations at the accuracy of the data from the DEM file.

Also the grid spacing of the data will have an effect. (eg Gtopo30 data is 1km grid

spacing which will tend to smooth out the map elevation shape).

3. The track height data captured by a GPS is not accurate.

There are two elevation offsets you can make

In OziExplorer / Elevation Configuration, you can enter an "Elevation

Adjustment" value (m). This will adjust both your Track heights (from GPS)

and your map elevations from your DEM files.

In OziExplorer3D, the "Elevation Offset" on the Map Control allows you to

adjust your 3D map elevation.

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