6.1. Introduction

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6.1. Introduction

SoBase SoBase SoBase
- SoFieldContainer SoFieldContainer SoFieldContainer
  - SoNode SoNode SoNode
    SoShape SoShape SoShape
    SoTVizRender
SbTVizData

Figure 6.1. TerrainViz classes

The TerrainViz extension provides a powerful tool for GIS, geoscience, and visual simulation applications by allowing interactive rendering of large textured terrain.


	Starting with Open Inventor 7.0, TerrainViz no longer requires a separate license string. The TerrainViz features are included with your base Open Inventor license.

The following classes are included:

SoTViz	Used to initialize and get information about the TerrainViz module.
SoTVizRender	Manages the elevation data and the textures. Recomputes the mesh. Loads and generates TerrainViz XML files.
SoTVizPreprocessor	Preprocesses input data (abstract class);
SoTVizDataPreprocessor	Preprocesses input elevation files. Generate the ROI elevation file (.dat). Updates the XML description file.
SoTVizTexturePreprocessor	Preprocesses input image file. Generate the ROI quadtree of textures file (.png files). Updates the XML description file.
SbTVizData	Stores the elevation data (abstract class). Returns information about the data.
SbTVizRegularGridData	Stores regular grid elevation data. Returns values.
SbTVizTexture	Stores an image file and its attributes relating to the texture quadtree.
SbTVizTextureList	Handles the quadtree of textures.
SbTVizColorScale	Manages a list of altitudes and a corresponding color list. Provides color shading and color contouring.
SoTVizViewer	Constrained viewer customized for terrain viewing. Supports multiple motion modes. Includes navigation tools.
SoTVizCameraManager	Base class for SoTVizViewer (abstract class)
SoTVizNavigationToolBase	Base class of SoTVizViewer navigation tools. Manages position and size, and event processing.
SoTVizNavigationTools	Manages navigation tools.
SoTVizCompass	Displays a compass in SoTVizViewer.
SoTVizAltimeterSpeedometer	Displays the camera height, terrain height, and speed in SoTVizViewer .
SoTVizControls	Manages the SoTVizViewer control dialog.
SoTVizControlsMenu	Displays a toggle button in SoTVizViewer control interface.

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Chapter 6. TerrainViz	Home	6.2. Elevation Management