WxNviz

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See also wxGUI.Nviz manual page.

wxNviz is a wxGUI extension which allows users to realistically render multiple surfaces (raster data) in a 3D space, optionally using thematic coloring, draping 2D vector data over the surfaces, displaying 3D vector data in the space, and visualization of volume data (3D raster data).

Screenshots

2008-06-27: Display raster map from layer tree in 2.5D (surface)	2008-07-05: Support for vector data (2D lines) added
2008-07-26: Support for vector point data	2008-08-02: 3D vector data support
2008-08-09: Initial support for volumetric data	2010-05-31: 3D view tools window integrated into Layer Manager
Lighting control panel in Layer Manager (2010-06-17)	Fringe control panel in Layer Manager (2010-06-23)
Redirect messages to wxGUI (2010-08-08)	Displaying raster (surface), 2D vector and 3D raster (volume) in the 3D space (2010-08-16)

HowTo

• Loading data, settings layer properties
• Visualizing fringes
• 3D raster maps (volumes) in the space

Ideas

• Fog support (see [1], [2], [3])
• Vertical labels (take from geonames.org point data): like in http://tev.fbk.eu/marmota/blog/?p=82

Known issues

• List of open and closed tickets
• Light settings do not work on Mac
• Adding vector data crashes wxGUI on Mac
• Rendering at fine resolution works only when changing viewing position or clicking the buttons that increase the numbers for perspective, twist, height and z-exag. Moving sliders does the required change but there is no redraw to full resolution
• Viewing height sometimes sets to 1 after switching to 2D and back to 3D View (or with the simultaneous 2D view - very nice feature) and even after View is reset, it keeps getting back at 1 each time the slider is touched
• Typing in the height or z-exag numbers and ENTER does not do anything but the typed number gets accepted after clicking on the increase/decrease button, it is not possible to set the height value beyond the initial maximum
• Adding fringe just flashes it but it does not stay
• Adding draw, draw current and clear button may be useful

Missing features

• cutting planes for multiple surfaces
• 3D points with multiple attributes

Google Summer of Code

2008

• Accepted Google Summer of Code 2008 project

2010

• Accepted Google Summer of Code 2010 project

See also

• http://lists.osgeo.org/pipermail/grass-dev/2008-February/035792.html