Loading Files

The contents of the file menu is shown above. The Open Object option is used to open a single data file or a scene file. The Open Texture is used to open color look-up tables or textures for draping on surfaces. The clear scene option is used to remove all currently loaded data.

GeoZui3D is designed to load files having a common cartesian coordinate system. Universal Transversal Transverse Mercator (UTM) is preferred. The following gives a brief introduction to the kinds of data files that can be loaded into GeoZui3D. A detailed description of the file formats is also available.

Regularly gridded terrain models: (suffix gutm). Gutm stands for gridded universal transverse mercator. This file type contains a regular grid of height values. However, to reduce memory requirements for long twisted terrain models, such as rivers, left and right offsets are stored, meaning that blank space to the left and right does not have to be represented in the file, or in the computer memory.

Tubes: (suffix .tube): A tube can be drawn through a sequence of x,y,z data point. One option smooths the tube using a spline. The diameter and/or the color of the tube can be varied along it's length to represent variables such as temperature or pressure.

Point: (suffix .point): The point class supports the presentation of point data. A shape, sphere, cube, cone, etc. can be specified for each point and each can be given its own color.

Geographic Data Points: (suffix .gdp) A class for displaying large numbers of data points as small, colored, pixel-sized points

Geographic Data Lines: (suffix .gdl) A class for creating lines, polylines or connected straight tubes.

Geographic Data Triangles: (suffix .gdt) Geographic data triangles support the display of sets of triangles or sets of triangle strips.

Curtain Plots: (suffix .curtain): The curtain plot is designed to support long vertically oriented ribbons of data

Color Look-up tables: (suffix .clut): color look-up tables are used for color coding data by depth.

Scene Files: ( suffix. sdv) A scene file is a simple list of a set of data files. It also enables the binding of a color lookup table to a gutm file, or it can also be used to drape a grid or an image on a gutm file.