ALGOSOFT - The Past - Topography

his project was done between November 1995 and September 1996. The project was developed and compiled with Microsoft Visual Studio using MFC, and NeXT Step Developement using Objective C. The software run under NeXT Step, Windows 95, Windows 98 and Windows NT and used RenderMan Interface (NeXT Step) or OpenGL (Windows) to draw in 3D.

ou can load a tile (ground) from a variety of file formats like DXF, IGES, OBJ or from a custom database representing the earth. We did the 3D camera interface to edit the viewer position and to scale, translate, rotate, pick (select) 3D objects on the topography.

On the left, you can see a technical board (in blue) to edit 3D objects and on the right, a 3D camera using a perspective projection to render the topography. We did the blueprint view and the camera window. The interface images are a courtesy of Synoptech inc, Montreal.

A full image of the 3D camera view using a perspective projection to render the topography. We did 3D ruler longitude-altitude, kilometers and the north star. The interface images are a courtesy of Synoptech inc, Montreal.

lements developed by ALGOSOFT:
	3D camera interface (display, translation, rotation, zoom)
	3D technical board interface (selection, translation, rotation, zoom, scaling, clipboard, changing axis and resizing windows)
	Resizable buttons having antialiased images to keep a neat look when the images are resized
	Scrolling bars to display a list of buttons in a restricted area and make hidden buttons visible
	Classes in C++ to manage a scene containing cameras (perspective and parallel projection) and 3D models
	Methods to interface with the OpenGL and RenderMan libraries
	The C++ source files are designed to be compiled for Windows (95, 98 and NT) and Unix (NeXT Step) systems