0-мавзу. Aylantirish usuli- soat

True Size of an Oblique Plane
When plane ABC in Figure 10-36A is projected onto a plane perpendicular to any
line in the fi gure, it shows an edge view in the fi rst auxiliary. In the top view, draw a line BX parallel to the reference plane. Place reference line V/1 perpendicular to the front view of BX. Project the front view of BX into a point projection in the fi rst auxiliary. The point projection is in the edge view of plane ABC as shown. Place the second auxiliary reference line V/2 parallel to the edge view, as shown in Figure 10-36B. The projection of plane ABC in the secondary auxiliary shows the true size.
True Angles Between Lines

When two lines show at true length, the angle between them appears in its true value. In Figure 10-37A, the two lines show as an inclined plane. This is so because the vertical view shows that lines AB and AC coincide, or lie in a single line. Place the V/1 auxiliary reference parallel to the two lines in the vertical view. The auxiliary view shows the two lines at true length, so it also shows the true angle between the lines.

Nazorat savollari

1. 
   Proyeksiyalarni qayta qurishning qanday usullari mavjud?
   
2. 
   Tekis-parallel harakatlantirish usulining ma’nosi nimadan iborat?
   
3. 
   Aylantirish usulining ma’nosi nimadan iborat?
   
4. 
   Gorizontal (yoki frontal) proyeksiyalovchi o‘q atrofida aylanayotgan nuqtaning proyeksiyalari qanday harakatlanadi?
   
5. 
   Nuqtaning aylanish radiusi, markazi va aylanish harakat tekisliklari deganda nimalar tushuniladi?
   
6. 
   Kesmaning haqiqiy uzunligini yasash uchun uni qanday vaziyatga kelguncha aylantirish kerak.?
   
7. 
   Uchburchakni gorizontal (yoki frontal) proyeksiyalovchi holga keltirish uchun uni qaysi o‘q atrofida aylantirish kerak?
   
8. 
   Izlari bilan berilgan tekislikni aylantirib frontal proyeksiyalovchi holga keltirish uchun nima qilish kerak?
   
9. 
   Tekislikni izlari atrofida aylantirishdan ko‘zlangan maqsad nima?
   
10. 
    Proyeksiyalar tekisliklarni almashtirish usulining mohiyati nimadan iborat?
    
11. 
    Umumiy vaziyatdagi uchburchakning haqiqiy kattaligini yasash uchun proyeksiyalar tekisliklari ketma-ket qanday vaziyatlarda almashtiriladi.
    

Adabiyotlar:
1.Xalimov M.K. «CHIZMA GEOMETRIYA va MUXANDISLIK GRAFIKASI» TOSHKENT, 2013y.
2. Murоdоv Sh.K. va bоshqalar, “Chizma geоmetriya kursi”. – T: O’qituvchi, 1998y.
3. Murоdоv Sh.K. “Gidrоtehniklar uchun chizma geоmetriya kursi”. – T: O’qituvchi, 1998y.
4. Sh.K.Murоdоv va bоshqalar, “Chizma geоmetriya kursidan ma`ruzalar to’plami”. – T: TIMI 2004 y.
Horijiy adabiyotlar:
1. B.C. Rana Engineering Drawing. 2009.