| 摘要 |
<p>An image texturing system utilizes theme cells to facilitate generation of terrain image data area-by-area for a display. The system is effective in flight simulation apparatus, as for training pilots. A memory stores theme maps representing areas of specific terrains, e.g. terrains lying below a specific flight path. The theme maps are indexed on a square grid pattern and have feature identification codes located at each grid corner, e.g. forest, water, etc. A selection device controlled by an image generator selects a current theme map and dissects it cell-by-cell to provide corner-referenced representations of a current theme cell, i.e. the feature identification codes identifying the four corners of the current theme cell and its quartered terrain treatments, i.e. forest, ocean, or the like. A terrain storage device stores a library of terrain treatment pattern arrays that are derived, for example, from photo data of forest, ocean, or the like. A terrain treatment pager controlled by the image generator provides representations of select terrain treatments indicated for the current theme cell and selects the type and sequence of the terrain treatment required for generating the current theme cell. A theme element assembler receives the representations of the current theme cell and the select terrain treatments. Using the data, the cell is specified according to rules to provide picture data representing a plurality of terrain treatments with varying patterns.</p> |
