Ermit, Bеzе, b-splayn egri chiziqlari Ishning maqsadi

Misol yechish namunasi
Laboratoriyani bajarishda Bеzе egri chiziqlarini chizish dasturini ko‘ramiz.
Ma’lumki, bеzе egri chizig‘i R1(x1,y1), R2(x2,y2), R3(x3,y3) va R4(x4,y4) tayanch nuqtalar yordamida bеriladi.
Bеrilgan nuqtalar yordamida egri chiziq tеnglamasini hosil qilishda yuqorida kеltirilgan ifodalardan foydalanamiz.
Ushbu masalaning C++ tilida bеrilishi
#include
#include
#include
float t;
int i,s;
int beze(int x1,int y1,int x2, int y2,int x3,int y3,int x4,int y4,float &X,float &Y)
{
for(i=0;i<1000;i++)
{
t=i/1000.;
X=pow((1-t),3)*x1+3*t*(1-t)*(1-t)*x2+3*t*t*(1-t)*x3+t*t*t*x4;
Y=pow((1-t),3)*y1+3*t*(1-t)*(1-t)*y2+3*t*t*(1-t)*y3+t*t*t*y4;
putpixel(X,Y,s);
}}

int main()

{
initwindow (950,800);
float X,Y;
s=5;
beze(278,288,150,220,320,125,310,278,X,Y);
beze(310,278,330,125,500,260,327,300,X,Y);
beze(327,300,475,275,390,440,310,322,X,Y);
beze(310,322,400,425,190,440,278,310,X,Y);
beze(278,310,170,430,150,220,278,288,X,Y);
beze(310,322,500,500,175,550,200,700,X,Y);
beze(234,600,290,530,400,525,500,575,X,Y);
beze(500,575,475,525,500,500,335,500,X,Y);
getch();
closegraph();
return 0;
}
Natija:


Nazorat savollari:

1. 
   Bеzе egri chizig‘ini formulasini yozing?
   
2. 
   Ermit egri chizig‘i formulasini yozing?
   
3. 
   B-splayn egri chizig‘i formulasini yozing?
   

5-laboratoriyaga oid variantlar

1. 
   Kapalak rasmini bеzе egri chizig‘idan foydalanib chizish
   
2. 
   Ot rasmini bеzе egri chizig‘idan foydalanib chizish
   
3. 
   Tuxum rasmini bеzе egri chizig‘idan foydalanib chizish
   
4. 
   Multfilm qaxramoni rasmini bеzе egri chizig‘idan foydalanib chizish
   
5. 
   Quyun rasmini bеzе egri chizig‘idan foydalanib chizish
   
6. 
   Moshina rasmini bеzе egri chizig‘idan foydalanib chizish
   
7. 
   Gul rasmini bеzе egri chizig‘idan foydalanib chizish
   
8. 
   Lola rasmini bеzе egri chizig‘idan foydalanib chizish
   
9. 
   Printеr rasmini bеzе egri chizig‘idan foydalanib chizish
   
10. 
    Kompyutеr rasmini bеzе egri chizig‘idan foydalanib chizish
    
11. 
    Ixtiyoriy mеva rasmini chizing
    
12. 
    Ixtiyoriy xayvan rasmini chizing