초록 ▼

A method is provided for representing, on a display device screen and in perspective from a given point of observation, the image of a terrain known by the nodes of a given mesh network, in which for each image pixel, the point of intersection is determined of the line which starts from the point of

A method is provided for representing, on a display device screen and in perspective from a given point of observation, the image of a terrain known by the nodes of a given mesh network, in which for each image pixel, the point of intersection is determined of the line which starts from the point of observation and which passes through this image pixel with a surface passing through the nodes and taking on approximately the shape of the ground, and said image pixel is illuminated with the color of the pixel associated with a digitized planimetric map or photograph of the ground.

대표청구항 ▼

A method of representing, on a display device screen (1) and in perspective from a given point (P) of observation, the image of a terrain (2) and a sky, said terrain being known by the coordinates of the nodes (N) of a given mesh network, in which a surface (3) passing through these nodes (N) is det

A method of representing, on a display device screen (1) and in perspective from a given point (P) of observation, the image of a terrain (2) and a sky, said terrain being known by the coordinates of the nodes (N) of a given mesh network, in which a surface (3) passing through these nodes (N) is determined by interpolation, an assembly of points (Q) on this surface is determined and the pixels (4) of the image to be represented, which are associated with this assembly of points (Q), are illuminated so as to display the image on the display device screen (1), characterized in that a planimetric map (5) or photograph of the terrain (2) is defined with color informations, the map or photograph is digitized so as to obtain map pixels (7,7′) of given colors, the points (Q) of said assembly of points being defined so that each point (Q) is associated with a respective pixel (4) of the image, and furthermore, with each of these points (Q), and with each of the corresponding image pixels (4), a map pixel (7′) is associated and each image pixel (4) is illuminated in the color of the associated map pixel (7′).