melb uni search a-z directory contacting people about us
department of geomatics
The University of Melbourne  photo
 
               
home air navigation rail track alignment mine shafts and tunnels 3D object location sea navigation maritime boundaries help and info
 
 
What Do I Do?
 
The essential idea behind this web site is guided exploration of navigation and positioning concepts. The concepts are presented as a series of real world examples to provide a realistic background to the problems and computations. Each concept is an identifiable topic and is closely linked with lectures and tutorials in 451-208 Computation Methods in Geomatics. Each topic has a consistent web page comprising four icons/links leading you to a tutorial, 3D models, a spreadsheet exercise and an Excel template as shown below for the mining example.

For each topic the recommended sequence of working through the material is as follows :

 
Step through the tutorial for the topic. The tutorial provides an introduction and context to the navigation and positioning concept. Each screen of this tutorial presents views of the 3D geometry of a real world example and relates this to computations within the 2D or 3D geometry. The tutorial may also present example computations from an Excel spreadsheet to further illusrate the computations.
   
Investigate the models of the 3D geometry of the real world example. Two types of models are available in each case. The first is a LivePicture model that allows you to rotate the object about one axis. This allows a particular view aspect to be presented. The second is a VRML of the 3D object. VRMLs are viewed using CosmoPlayer and allow you complete freedom of movement around and within the model. It is easy to get "lost" within the 3D model, so in each case pre-defined views are provided to illustrate the most important aspects of the geometry. The pre-defined views are selected using the View Menu at the lower left of the CosmoPlayer console (see below).
   
When advised to do so by the course coordinator, download the tutorial sheet for the spreadsheet exercise and read it through carefully. The tutorial sheet will give to you explicit instructions on what to do and guidance on how to do it. In most cases the instructions in the tutorial sheet will refer back to the 3D models as background on the computation procedures.
   
Once you have read the tutorial sheet, download the Excel template. The template provides you with the basic data for the spreadsheet exercise. You can compose your computations within the spreadsheet and then submit it as part of the report on the spreadsheet exercise.
 
Each topic area and associated spreadsheet exercise will be presented in an order and timing decided by the course coordinator. However for every topic it is very important that you step through the tutorial and understand the concepts before you attempt the spreadsheet exercise.
 
Navigation
 
 

The image strip at the top of every page allows you to jump between topics. A click on any of the eight icons will jump to the home page, the six main topic areas and the help pages respectively from left to right. In addition, the white triangle marker points to the topic area for all web pages associated with the topic. You can return to the top level page for a topic at any time, regardless of where you are in the web site.

As noted in the previous section, the layout of every topic page is very similar with four main icons. Lower level pages are of similar design, whilst the tutorials and 3D models open within the page and have no other links. Once more, you can return to the home page or the top level page of any topic using the image strip at the top of every page.

 
Plug-ins
 

The plug-ins you need to access all the features of this site are already installed in all Engineering Computer Resources PC laboratories. Open Access laboratories on campus will have some, but not all, of the required plug-ins. Do not attempt to install any software on any of these systems! If something does not work, approach the Help Desk for the laboratory.
 
 
For your own PC at home or elsewhere, you may need to install various plug-ins. Visit the Plug-ins page to download and install what you might need.
   
 

Navigation and Positioning
451-208 Computation Methods in Geomatics
Maintainer: Mark Shortis
Coordinator: Frank Leahy

Department of Geomatics
Faculty of Engineering
The University of Melbourne