- SpacEyes3D Viewer Features

SpacEyes3D Viewer allows to display 3D models made with SpacEyes3D Builder.

Open| Open Project...

To open a SpacEyes3D project available locally (“spv” file).
“spv” files can also be open by drag-and-drop on the SpacEyes3D Viewer window.

Open| Open Remote Project...

To open a remote SpacEyes3D project published on a SpacEyes3D Server.

Demonstration projects on www.spaceyes.com...

To open the online demonstration page from the SPACEYES web site.
Demonstration projects are also available from the following pages:

• Demonstration projects using local databases
• Demonstration projects using remote databases

Use mouse to change your position

• Double click to change the focus center
• Left mouse button to rotate around focus center
• Mouse wheel to go forwards/backwards
• Middle button to pan

Tripod

Use this control to change the view angle.

Joystick button

Hold down the mouse button on the joystick to browse the terrain at constant height

Refresh

Use this button to adjust relief accuracy on the selected area of interest

Tilt Up/Tilt Down

Use these buttons to change the view angle.

Panoramic zoom

Use this button to restore top global view

Zoom in/Zoom out

Use these buttons to go forward or backward. Up/Down Use these buttons to change your altitude.

Fly!

• Use this button to activate Fly! mode
• Rotation: mouse or arrows
• Speed control: mouse wheel, or key F5 to F8
• Initial view: Space key
• Exit: Esc key or double click

Restore north

Changes observer direction in order to face the north.

Search

To access to any point directly from its cartographic coordinates, or search a place from its name if a toponyms database has been defined in the project.

Information

This tool is used to consult attributes of GIS objects included in the 3D model. Select the tool and click on any GIS object to display its tabular attributes.
Press “Esc” key to release the information tool.

Tools and settings

Global view

Show/hide the global view if it’s defined in the project.

Relief exaggeration

Use this function to improve relief perception (value 1 corresponds to a natural relief).

Focal

Changes the focal of the camera (changes the view angle).

Stereo Display (F3)

Stereo mode enables anaglyph 3D display to enhance realism using anaglyph glasses.

Display quality

On some system you can improve the frame rate by decreasing display quality. In most of cases, ‘Normal quality' is the best option.
The option "Permanent image refresh" can be used to improve image quality during rapid movements.
The option "Disable texture filtering" can be used to eliminate black lines crossing the 3D model on systems not able to use properly texture filtering.

Internet settings

Setup the Internet connection and proxy serverfor remote data server access.

Full screen mode / window mode

Shift Viewer display.

Snapshot

This tool allows you to create a screen shot of the current 3D view.
Choose a name for the Jpeg image to be created.

Language

Choose the language you want and restart the Viewer to take the new language into account.

These features extracted from SpacEyes3D Builder allow to quickly visualize in 3D a draped image on a DTM.

New Project

To create a 3D model from a DTM and an ortho-image.
In the Project creation window, just specify a DTM and an ortho-image to drape.
The Digital Terrain Model must be in raster format (regular grid).
The image to drape must be in the same projection system than the DTM.
Notice:
Some image and DTM formats are really slow to read especially for large databases (asc, jpeg, png…). We advise to use optimized image formats (pyramidal tiled Tiff, ECW...).
This construction function is extracted from SpacEyes3D Builder.

Open | Open DTM...

Openning a DTM is an easy way to visualize in 3D a Digital Terrain Model. This function also works by drag-and-drop of the DTM file on the SpacEyes3D Viewer window if there isn't any DTM which already defined.

Open| Add a georeferenced image...

A DTM must be defined before. The selected image is draped dynamically on the DTM. SpacEyes3D Viewer limits georeferenced image layout to one image : any other image is automatically removed. This function also works by drag-and-drop of the image file on the SpacEyes3D Viewer window if a DTM is already defined.

Tools and settings | Relief toolbox...

The relief toolbox allows to process several products from a Digital Terrain Model:

• Shaded relief
• Slope image
• Aspect image
• Colored relief
• Contour lines

This tool is directly based on GDAL applications gdaldem and gdal_contour for the processing. More information on GDAL

This tool makes easier the use of command line applications with an easy to use interface and a real time preview.

How to use the relief toolbox?

1) Enter a Digital Terrain Model (in raster format)
2) Select the type of process to apply
3) Choose process parameters
4) Launch the process with the button “Launch process”

Processing details

Shading
Georeferenced color image of the shaded relief. (This tool doesn't compute projected shadows, only the relief orientation is used)

Slopes
Georeferenced raster file giving for each pixel the slop in degrees or in percent.

Aspect
Georeferenced raster file giving for each pixel the azimuth of the slope.

Color relief
Georeferenced image colored according DTM elevations. Color ramps can be specified from a simple text file defining colors. This tool can also be used to color any raster information layer (for instance slope map or aspect map).

Contour lines
Vector file of polylines in Shp format containing selected isolines.

Easy usage with SpacEyes3D Viewer

The DTM used in SpacEyes3D Viewer is used by default if the application is call from the SpacEyes3D Viewer "Tools and settings" menu. Just like SpacEyes3D Viewer, the relief tool box supports drag-and-drop to enter the DTM file. Produced results and previews support drag-and-drop to SpacEyes3D Viewer.

Supported image and DTM formats

• Tiff/GeoTiff, bigTiff (*.tif)
• ECW ERMapper Compressed Wavelets (*.ecw)
• Vertical Mapper (*.grd, *.grc)
• GEOimage Format (.geo)
• Virtual Raster (*.vrt)
• ASC Arc/Info ASCII Grid (*.asc)
• Vertical Mapper (*.grd, *.grc)
• Ermapper ERS file (*.ers)
• Erdas Imagine Images (.img)
• National Imagery Transmission Format
• CEOS SAR Image
• CEOS Image
• ELAS
• Arc/Info Binary Grid
• SDTS Raster
• DTED Elevation Raster
• Portable Network Graphics (*.png)
• PCIDSK Database file
• GMT NetCDF Grid Format
• MrSID Multi-resolution Seamless Image Database (*.sid)
• JPEG JFIF (*.jpg)
• SRTM : HGT file format
• ADRG
• JDEM: Japanese DEM (.mem)
• GIF Graphics Interchange Format (.gif)
• Envisat Image Format Maptech BSB Nautical Chart (*.bsb)
• XPM X11 PixMap Format (*.xpm)
• MS Windows Device Independent Bitmap (*.bmp)
• Intergraph raster SPOT Dimap (*.dim)
• JPEG2000 (*.jp2)
• HDF4: Hierarchical Data Format Release 4
• HDF4Image: HDF4 Dataset
• PNM Portable Pixmap Format (netpbm) (*.pnm)
• DOQ1: USGS DOQ (Old Style)
• DOQ2: USGS DOQ (New Style)
• ENVI: ENVI .hdr Labelled
• EHdr: ESRI .hdr Labelled
• PAux: PCI .aux Labelled
• MFF: Atlantis
• MFF Raster
• MFF2: Atlantis MFF2 (HKV) Raster
• FujiBAS: Fuji BAS Scanner Image
• GSC: GSC Geogrid
• FAST: EOSAT FAST Format
• L1B: NOAA Polar Orbiter Level 1b Data Set
• FIT: FIT Image
• USGSDEM: USGS Optional ASCII DEM (and CDED)
• GXF: GeoSoft Grid Exchange Format Magellan Topo (*.blx)
• Erdas Imagine raw format (*.raw)
• Farsite LCP
• GRIB1/2

Supported image servers

• SpacEye3D Server
• WMS
• WCS
• ECWP
• ArcSDE Raster*
• Oracle Raster*

(*) Specific plugin needed