Regions a region is a complex area of any shape and is generally defined as a boolean combination of simpler regions 區(qū)域-區(qū)域是任何形狀的復(fù)雜區(qū)域,它通常被定義為較簡單區(qū)域的布爾組合。
7 krishnan s , manocha d , gopi m , culver t , keyser j . boole : a boundary evaluation system for boolean combinations of sculptured solids 第二是它們是對偶表達(dá)的,一個參數(shù)化的表達(dá)一定與一個隱式的表達(dá)相對應(yīng)。
Drawing modes are binary raster - operation codes representing all possible boolean combinations of two variables , using the binary operators and , or , and xor ( exclusive or ) , and the unary operation not 繪圖模式是二進(jìn)制的光柵操作代碼,使用二元操作符and , or和xor ,以及一元操作符not ,表達(dá)了兩個變量所有可能的布爾組合。