布尔运算的基本元素是?

2025-04-06 00:46:48
推荐回答(2个)
回答1:

布尔运算的基本元素是:1和0表示"真"和"假"。

布尔运算是数字符号化的逻辑推演法,包括联合、相交、相减。在图形处理操作中引用了这种逻辑运算方法以使简单的基本图形组合产生新的形体,并由二维布尔运算发展到三维图形的布尔运算。

二进制布尔运算

二进制数的布尔运算有“与”、“或”、“非”和“异或”4种,二进制布尔运算在计算机编程中有广泛的应用。

扩展资料:

二进制布尔运算符:与(&),或(|),异或(^),当其操作数是布尔值时,它们就是逻辑运算符。对于运算符两边的操作数不管真假与否,都会先计算出来结果后再进行布尔逻辑运算;当其操作数是整数时,它们就是位运算符。

条件布尔运算符:条件与(&&),条件或(||),条件非(!)运算符,只能对布尔值进行计算,并且从左到右,如果有一个操作数为真,就不再计算它右边的操作数,直接得出计算结果。

作用:Boolean(布尔运算)通过对两个以上的物体进行并集、差集、交集的运算,从而得到新的物体形态。系统提供了4种布尔运算方式:Union(并集)、Intersection(交集)和Subtraction(差集,包括A-B和B-A两种)  。

效果:物体在进行布尔运算后随时可以对两个运算对象进行修改操作,布尔运算的方式、效果也可以编辑修改,布尔运算修改的过程可以记录为动画,表现神奇的切割效果。

参考资料:百度百科——布尔运算

回答2:

布尔运算的基本元素是:真 、假。

一、布尔运算的含义

布尔运算是数字符号化的逻辑推演法,包括联合、相交、相减。在图形处理操作中引用了这种逻辑运算方法以使简单的基本图形组合产生新的形体,并由二维布尔运算发展到三维图形的布尔运算。

二、ANSYS 中,布尔运算(Booleans )

1、相加(add ):相加是指对所有图元进行叠加,包含原是个图元的所有部分,生成一个新图元,各个原始图元的公共边界将被清除,形成一个单一的整体。在ansys 的面相加中只能对共面的图元进行操作。

(1)对两个已经存在的面进行相加操作

命令:aadd,na1,na2,na3,na4,na5,na6,na7,na8,na9

(2)对两个已经存在的体进行相加操作

命令:vadd,nv1,nv2,nv3,nv4,nv5,nv6,nv7,nv8,nv9

(3)对两条已经存在的线进行操作

命令:lcomb,nl1,nl2,keep

keep 表示保留进行相加操作的图元,deleted 表示进行相加操作后删除原始图元。

2、搭接(overlap ):搭接是指将分离的同阶图元转变为一个连续体,其中图元的所有重叠区域将独立成为一个图元。搭接与相加操作类似,但相加操作是由几个图元生成一个图元整体,而搭接则是由几个图元生成更多的图元,相交的部分则被分离出来。

(1)线和线之间进行搭接操作

命令:lovlap,nl1,nl2,nl3,nl4,nl5,nl6,nl7,nl8,nl9

(2)面和面之间进行搭接操作

命令:aovlap,na1,na2,na3,na4,na5,na6,na7,na8,na9

(3)体和体之间进行搭接操作

命令:vovlap,nv1,nv2,nv3,nv4,nv5,nv6,nv7,nv8,nv9

3、粘结(glue ):粘结操作是将多个图元组合成一个连续体,图元之间仅在公共边界处相连,其公共边界的维数低于原始图元一维(什么维数,博客朋友能不能留言解答,谢谢(XTY ))。粘结操作与加操作类似,但不同的是这些图元之间仍然相互独立,只是在边界上连接。粘结操作通常还与搭接操作配合使用。

(1)通过粘结线生成新线

命令:lglue,nl1,nl2,nl3,nl4,nl5,nl6,nl7,nl8,nl9

(2)通过粘结面生成新面

命令:aglue,na1,na2,na3,na4,na5,na6,na7,na8,na9

(3)通过粘结体生成新体

命令:vglue,nv1,nv2,nv3,nv4,nv5,nv6,nv7,nv8,nv9

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