兩立體相交.PPT

1、1 Characteristics and views of intersection line Steps of drawing intersection line Tendency of two perpendicular cylinders intersection line Exercises 22 Characteristics and views of intersection line When two solids come together, it produces intersection line.Characteristics of Intersection line

2、Intersection line 33 2. The method of finding intersections By taking selected points on the surfaces： （2） Using the assistant cutting plane method. Characteristics and Views of intersection line （1） Using the accumulation method.44 Steps of drawing intersection line Analyze. Draw special points and

3、 general points.Distinguish its visibility and draw a smooth curve through the points. Erase redundant lines and draw deeply. 556677實體與實體相貫實體與實體相貫實體與虛體相貫實體與虛體相貫虛體與虛體相貫虛體與虛體相貫88 2. Draw the V, W views of the intersecting body.Exercises 1. Select the correct left view91010Select the correct left view1

4、1115 6 41 2. Draw the V, W views of the intersecting body.1 21(2)433(4)55(6)3621212P P6 6 8 8 1 1 2 2 4 45 5 7 7 1. Draw the V, W views of the intersection solid. 3 33(4)125(6) 7(8)1(2)436(8) 5(7)13131 1 2 2 3 3 4 45 6 2. Draw the V, W views of the intersections solid. 121(2)5(6) 3(4)4(6)3(5)14141 1

5、 3 3 4 4 3. Draw the V view of two perpendicular cylinders. 2 2 343(4)211(2)1515 4. Draw the V, W views of the intersections solid.1 1(2)(2) ( (1 11 1. .1 12 2) )易多線易多線易多線易多線易多線易多線5346810129711123(5)1(2)(46)(79)(810)(11)121616 P P Q Q4 43 3 1 1 5 5 6 6 5. Draw the V, H views of the intersections solid.( (2 2) )