intersection types

ObjectiveThe union type and intersection type are all equivalent "types"that combine multiple types, and they are not actual types.Union TypeThe union type is constructed using a bit or operator | :A | B | C Note: the use | of symbols to

The 4th chapter is the acceleration of the body element and the intersection The class described in the previous chapter focuses on how to express the geometrical properties of 3D objects. Although the shape class is a convenient abstraction for

Concept The determination of the positional relationship between two line segments in a plane is widely used in many fields, such as games, CAD, and graphic processing.AlgorithmAn important part. This article will describe a mainstream and

First, set operation1.UNION : the set operation. Syntax structure:sql>Select Table 1, column 1, table 1, column 2 from table 1 Union select Table 2 column 1, table 2, column 2 from table 2;Table 1, column 1 and table 1, column 2 is the two columns

(1) design an algorithm to determine whether two rectangles overlap (that is, overlapping areas) (2) If the two rectangles intersect, design an algorithm to find the intersecting area rectangle. (1) The general idea of this problem is to determine

The half-plane to cross so tall name, in fact, is a straight line to cut a piece of area.The half plane is a straight line to divide a plane into two parts, the plane of the side of the line is half plane, so the half plane is represented by a

Calculation Description: The calculation rule refers to the calculation between the other "participant type members", the rule calculation must be solved in case the handler is not empty, and the individual "contributor type members" are executed in

The example in this article summarizes the method by which Python asks for a list intersection. Share to everyone for your reference. The specific methods are as follows: The intersection of a given set of two sets A and set B is the one that

Some people are friends with each other (no to the graph with a non-edge), now to add a friend to recommend the function, if for x, there is y,x and y is not a friend, but Y and X have a common friend, and the most common friends, then Y can be

4.4 kd-Tree Accelerator The two-dimensional partition (Binary space partitioning, BSP) tree adaptively divides the space into regions of varying sizes. Compared with homogeneous grids, BSP is a more efficient data structure for scenes with uneven