Table of Contents


This page contains information on how to use the XNavigator User Interface.

1. User Interface

The user interface of XNavigator is divided into 5 parts.

2. Layer Control

Next to the large 3D Window there is a select list with which you can enable or disable single layers. The Data on the server are organised in layers which are retrieved separately. The layers Terrain, Buildings and Labeling are preset. In addition to this there are many other layers with interesting and informative content, e.g. gastronomy, public facilities etc. Just try.


Styles are different variants of displaying the 3D-scene, comparable with a thematic map in which certain information, respectively attributes are displayed in terms of colour. There are several preset styles available for certain layers. These are directly linked to the layer. If you see a plus symbol next to the layer, you can open the appropriate styles with it. The layer will be loaded newly, if you select a preset style. Styles are being defined through a combination of rules and forms of display. The rules refer to attribute values stored in the database, which contain useful information, e.g. the usage of buildings (public vs. private). The form of display determins in which colour or material the objects are being displayed. They often effect also the geometry of the specific object. The most important styles are:

Elevation for the terrain: Display of altitudinal belts with a colour gradient

LODs for buildings:For buildings there are often several Levels of detail available. From simple pixels to fully modeled and textured models. The higher the LOD value, the more realistic the models. LOD1|2 means: mixed display. If a LOD2 building is available it will be displayed, otherwise the LOD1 building will appear.

Variants of displaying trees: Effects the geometry: either abstract or realistic.

Own styles can be created with the context-menu. Right click on the layer and select “add style”.

3. Button Bar

With the button bar which is provided within the 3D Window you cannot only switch between the different navigation modes, but also access some further functions. For Navigation there are several modes available. The movement speed can be changed with the plus or minus button. While switching between the navigation modes, the current speed will be saved.


Adjust the view horizontally

Go Home:

Go back to start location

Fly Mode:

left mouse button: move forward and backwards parallel to the ground; turn left and right

Shift + left mouse button: move forward and backwards parallel to the ground; strafe left and right

right mouse button: move up and down

both mouse buttons: stay at current position and look around

Map mode:

left mouse button: move forward and backwards parallel to the ground; strafe left and right

Shift + left mouse button: move forward and backwards parallel to the ground; turn left and right

right mouse button: move up and down

both mouse buttons: stay at current position and look around

Bird mode:

left mouse button: move forward and turn in all directions

Examine mode:

short click with left mouse button: pick point in scene as new focus point

left mouse button: rotation around the focus point.

right mouse-button: zoom in and out

Pan mode:

left mouse button: pick location and move horizontally

right mouse button: zoom in and out, rotate around picked location

both mouse buttons: stay at current position and look around

Get Adress:

Identifies adresses in the 3D map. If you select this function the mouse pointer converts into a cross. Click onto a building or a street. Thereupon the adress appears with a pin in a small text box. If you cannot see it, you have to zoom in a bit.

Show object information:

Accesses attributedata which is stored for each object. If you activate this function, the mouse pointer converts into a cross. Click onto a building or another object. Thereupon a new window with a chart appears, which contains every located building plus attributes.

4. Menu


open URL:

Open VRML files. Enter the URL to a VRML 2.0 file which is to be loaded. The remaining scene is being deleted.

import URL:

Import VRML files. Enter the URL to a VRML 2.0 file which is to be loaded into the scene.

3D Server Info:

Information about the 3D Server; general description, available data and contact.


basic settings for the display.


close XNavigator



Overview map


Search for cities and adresses


3D Routing

Yellow Pages (OSM):

Radial search for interesting or important locations (POIs)

Solar settings:

Adjustment of daytime and season

Memory consumption:

Information about the current memory consumption



Adjust the view horizontally

Go home:

go back to your starting spot


Select between the different navigation modes

faster/slower: Changes movement speed

Show Navigation Info:

Display frames per second (fps), position and compass in the 3D window.



Information about button and mouse functions


User manual


Checks if a newer version of the software is available


Information about the software-developer, contact

5. Panels/Functions

The section underneath the layers is defined for special functions. The overview map is preset here. With the panels menu tabs can be enabled or disabled. At the moment there a functions for the overview map, adresssearch, routing, POI search, memory consumption and solar settings. Some versions include access to sensor data, emission scenarios and further special applications.


Display of the overview map, the current position and orientation is displayed as an arrow.


The 3D Routing affords a completely new, exceeding presentation of navigation by foot or mobile. Start and destination can either be entered with the adress fields or by clicking on the 3D map. Therefore activate the “click” button and click on a specific building in the 3D scene. The buildings adress is retrieved automatically and entered into the form.

Compute route:

The adresses are tranfered to the server and the route is being calculated. The result is being displayed in the 3D window directly.

Get description:

A traditional route description is being displayed with an Overview map and all driving instructions


The Route is being deleted out of the 3D scene.

After the calculation has taken place an interactive field, comparable to a media player, is available. Press the start button to launch a route animation with which you fly along your route from start to destination. During the animation you can change angle or distance to the route by clicking the right or left mouse button. With the slower or faster button you can change the movement speed. To attain to the normal navigation mode press the stop button. Furthermore there are sights for start and destination and a total overview.

Solar settings

Adjustment of daytime and season → the solar altitude is being calculated.

6. Preferences


For professional users. You can enter the server or service adresses here, from which the data are being obtained or which take over specific tasks like routing.


You can adjust parameters for 3D display here. If the program is too slow or the built up of the screen lasts too long, you are to reduce your settings. You can also boost your settings if a qualitative better display is desired.

Render Mode

Affects the complexity of solar settings calculation.


the single triangles are visible


The solar setting is interpolated between the triangles. Thus surfaces appear softer.


Only edges are plotted


The solar setting is calculated pixel by pixel, water reflection is more realistic.


Adds an atmosphere simulating light scattering (Rayleigh and Mie) and attenuation. Based on a physical model.

Mip Maps

Mip Maps are picture pyramids for textures, which are selected depending on the distance. Thus they appear more realistic.

Anisotropic filtering

Anisotropic filtering is reasonable for terrain textures which are reckoned from a flat angle. They are plotted sharper through this special filtering.

Screeenspace Error

This item refers to the accuracy of the display. It has also a direct effect on the total dimension of the displayed model. The smaller the display exception is, the more precise data is loaded and the farther the visible part of the total scene is pushed back. Thus you are able to adjust the display to the performance of your system.


You can toggle the density of the fog here.

Cache Size

The XNavigator is working with a cache, in which data (not visible at that moment) are stored, which might be required later (in RAM). If you disable a layer, all data referring to this layer are deleted out of the cache. The cache size should not be larger than 1300 MB on 32 Bit systems.