用c语言椭圆函数画玫瑰花 c语言画椭圆程序

求玫瑰的函数图像

matlab源代码用c语言椭圆函数画玫瑰花：function plot_rose

draw_main(450,90);

function draw_main(x,y)

%粉红色玫瑰

arcdata{1}=[65 -60 150 350 8

66 -54 300 470 8

65 -56 30 230 10

64 -57 300 490 17];

ellipsedata{1}=[73 -30 250 450 27 40

59 -30 100 290 27 40

65 -40 140 270 20 30];

arcdata{2}=[0 0 150 350 12

1 8 280 470 12

0 2 30 230 16

0 3 80 240 28

2 8 180 330 22

-2 2 310 460 25];

ellipsedata{2}=[-12 30 120 300 30 40

10 28 250 423 30 42

-4 10 290 393 30 40];

ellipsedata{3}=[120 5 0 360 15 25];

ellipsedata{4}=[-70 10 0 360 14 20];

rose_e{2}=[x+16 y+32 235 355 26 35

x-15 y+32 190 310 30 35

x+0 y+35 190 350 43 50];

rose_e{1}=[x+80 y-48 220 350 22 50

x+50 y-48 190 320 22 50

x+65 y-28 180 360 36 50];

rose_e{3}=[x+120 y-6 200 340 17 25

x+120 y+7 160 380 17 27];

rose_e{4}=[x-70 y+15 140 390 17 20

x-75 y-10 205 340 10 30

x-60 y-10 195 340 5 30];

arcdata{3}=[0 82 190 350 6];

ss={'m','r','b','y'};

s0={'k','k','g'};

figure('menubar','none','numbertitle','off','name','rose');

% figure('numbertitle','off','name','rose');

hold on

for j=1:length(ellipsedata)

for i=1:size(ellipsedata{j},1)

rectangle('Position',[x+ellipsedata{j}(i,1)-ellipsedata{j}(i,5),y+ellipsedata{j}(i,2)-ellipsedata{j}(i,6),2*ellipsedata{j}(i,5),2*ellipsedata{j}(i,6)],'Curvature',[1,1],...

'FaceColor',ss{j})

end

if j4

for i=1:size(arcdata{j},1) draw_arc(x+arcdata{j}(i,1),y+arcdata{j}(i,2),arcdata{j}(i,3),arcdata{j}(i,4),arcdata{j}(i,5),s0{j});

end

end

for i=1:size(rose_e{j},1)

plot_rose_e(rose_e{j},j);

end

end

for j=1:3

zhuzhi=[x-98,y+100+j,255,371,100,80

x-20,y+30+j,260,358,140,140

x+224,y+20+j,180,218,160,140];

draw_branch(zhuzhi);

end

ce_branch=[x+70,y+34,180,233,140,140;

x,y+40,205,255,100,120;

x+135,y-30,209,249,72,120;

x,y+20,263,301,100,120;

x+85,y-10,278,305,100,120;

x+100,y-62,282,308,90,120;

x-50,y-10,277,314,30,120;

x+70,y+80,222,266,52,120;

x-60,y-45,229,266,52,120;

x+79,y-45,229,266,52,120;

x+84,y,224,273,52,120;

x+110,y+40,240,282,100,120];

draw_branch(ce_branch);

t_leaf=[x+168,y+282,10,20,-40;

x+160,y+252,8,16,260;

x+145,y+270,8,16,-15;

x+156,y+224,10,20,-45;

x+150,y+200,8,16,270;

x+135,y+220,8,16,-10;

x+146,y+144,8,16,-80;

x+130,y+130,6,12,235;

x+125,y+154,7,14,-10;

x+78,y+98,6,12,-90;

x+60,y+90,5,10,180;

x+70,y+109,5,10,-45;

x-125,y+270,12,24,60;

x-95,y+270,10,20,10;

x-110,y+245,10,20,90;

x-105,y+220,10,20,45;

x-100,y+190,8,16,135;

x-75,y+210,8,16,-45;

x+65,y+190,10,20,-45;

x+40,y+185,8,16,0;

x+55,y+165,8,16,90];

for j=1:size(t_leaf,1)

draw_elli(t_leaf(j,1),t_leaf(j,2),t_leaf(j,3),t_leaf(j,4),t_leaf(j,5));

end

axis ij

axis off

set(gcf,'color','k');

daspect([1,1,1])

% 画旋转椭圆

function draw_elli(x0,y0,a,b,theta)

theta=-theta;

t = 0:0.01:2*pi;

x = a*cos(t);

y = b*sin(t);

xy = zeros(2,length(t));

for i = 1:length(t)

xy(:,i) = expm([0,-pi/180*theta;pi/180*theta,0])*[x(i);y(i)];

end

plot(x0 +xy(1,:),480-y0 + xy(2,:),'g');

% 画弧线

function draw_arc(x0,y0,st_a,en_a,r,c_c)

t = (pi/180*st_a:0.01:pi/180*en_a)-pi;

x = x0 + r*cos(t);

y = y0 + r*sin(t);

plot(x,y,c_c);

% 花萼

function plot_rose_e(matr,ch)

x=[];y=[];n=size(matr,1);

for i=1:size(matr,1)

t=(matr(i,3):matr(i,4))*pi/180-pi;

x1=matr(i,1)+matr(i,5)*cos(t);

y1=matr(i,2)+matr(i,6)*sin(t);

if i3

x1=2*matr(i,1)-x1;

end

x1=fliplr(x1);

y1=fliplr(y1);

if n3 i2

x1=fliplr(x1);

y1=fliplr(y1);

end

if ch==4 i==2

x1=fliplr(x1);

y1=fliplr(y1);

end

x=[x,x1];

y=[y,y1];

end

fill(x,y,'g');

% 画树枝

function draw_branch(zhuzhi)

for k=1:size(zhuzhi,1)

t=(zhuzhi(k,3):zhuzhi(k,4))*pi/180-pi;

x1=zhuzhi(k,1)+zhuzhi(k,5)*cos(t);

y1=zhuzhi(k,2)+zhuzhi(k,6)*sin(t);

x1=2*zhuzhi(k,1)-x1;

plot(x1,y1,'g','linewidth',2);

end

相关问答

Q1: 用C语言输出一束鲜花

我以前划过一箭穿心，就是一个箭头，穿过两个心形状的图案。我的办法是用搜狗输入法的特殊表情输入，里面有很多图像，其中应该有你要的鲜花。你按照搜狗的画法，模拟一个网格的区域，然后定义数组，有颜色的个子数组值为1，输出一个符号，没有颜色（空白）的个子，值为0，输出一个空格，下面是搜狗的特殊表情“鲜花”

{@}

{@} * {@}

{@} * {@} * {@}

{@}* {@} * {@} * {@}

\ {@} * {@} * {@} /

\ \ \ l / / /

\\ \ Y / //

\\ l //

\\Y//

=

//*\\

Q2: c语言编写程序 水仙花数 玫瑰花数

1

#include stdio.h

#include stdlib.h

int flower(int n)

{

int i, j, k;

i = n % 10;

j = n / 10 % 10;

k = n / 100;

if (i*i*i + j*j*j + k*k*k == n)

return 1;

else

return 0;

}

int main(void)

{

int i;

for (i = 100; i 1000; i++)

{

if (flower(i) == 1)

printf("%d ", i);

}

return 0;

}

2.

#include stdio.h

#include stdlib.h

int rose(int n)

{

int i, j, k,m;

i = n % 10;

j = n / 10 % 10;

k = n / 100%10;

m = n / 1000;

if (i*i*i*i + j*j*j*j + k*k*k*k+m*m*m*m == n)

return 1;

else

return 0;

}

int main(void)

{

int i;

for (i = 1000; i 10000; i++)

{

if (rose(i) == 1)

printf("%d ", i);

}

return 0;

}

Q3: 用C++编玫瑰花

看了效果自己可以调节#include stdio.h

#include dos.h

#include graphics.h

#include math.h#define FNX(x) (int)(xo+(x)*1.0)

#define FNY(y) (int)(getmaxy()-(yo+(y)*1.0))

#define FNX2(phi) cos(phi)*ac-sin(phi)*bs

#define FNY2(phi) cos(phi)*as+sin(phi)*bc/*画旋转的椭圆*/

void elli(int xo,int yo,int a,int b,double theta)

{

int i;

double da,c,s,ac,as,bc,bs,xf,yf,phi,x,y;

theta=theta*0.01745;

da=3*0.1745;

c=cos(theta);s=sin(theta);

ac=a*c;as=a*s;bc=b*c;bs=b*s;

x=FNX2(0);y=FNY2(0);

moveto(FNX(x),FNY(y));

for(i=1;i=360;i++)

{

phi=i*da;xf=x*cos(phi)*0.1;yf=b*sin(phi)*0.1;

x=FNX2(phi);y=FNY2(phi);

lineto(FNX(x),FNY(y));

}

}/*花*/

void hua(int x,int y)

{

register i;

/*画粉红色玫瑰*/

setcolor(12);

arc(x+65,y-60,150,350,8);

arc(x+66,y-54,300,470,8);

arc(x+65,y-56,30,230,10);

arc(x+64,y-57,300,490,17);

ellipse(x+73,y-30,250,450,27,40);

ellipse(x+59,y-30,100,290,27,40);

ellipse(x+65,y-40,140,270,20,30);

setfillstyle(SOLID_FILL,5);

floodfill(x+65,y-20,12);

/*画红色玫瑰*/

arc(x,y,150,350,12);

arc(x+1,y+8,280,470,12);

arc(x,y+2,30,230,16);

arc(x,y+3,80,240,28);

arc(x+2,y+8,180,330,22);

arc(x-2,y+2,310,460,25);

ellipse(x-12,y+30,120,300,30,40);

ellipse(x+10,y+28,250,423,30,42);

ellipse(x-4,y+10,290,393,30,40);

setfillstyle(SOLID_FILL,4);

floodfill(x+5,y+31,12);

/*画紫色花骨朵*/

ellipse(x+120,y+5,0,360,15,25);

setfillstyle(SOLID_FILL,1);

floodfill(x+120,y,12);

/*画黄色花骨朵*/

ellipse(x-70,y+10,0,360,14,20);

setfillstyle(SOLID_FILL,14);

floodfill(x-70,y+10,12);

setcolor(10);

/*画红花花萼*/

ellipse(x-15,y+32,190,310,30,35);

ellipse(x+16,y+32,235,355,26,35);

ellipse(x,y+35,190,350,43,50);

arc(x,y+82,190,350,6);

setfillstyle(SOLID_FILL,2);

floodfill(x,y+75,10);

/*画粉花花萼*/

ellipse(x+50,y-48,190,320,22,50);

ellipse(x+80,y-48,220,350,22,50);

ellipse(x+65,y-28,180,360,36,50);

floodfill(x+65,y+18,10);

/*画主枝*/

for(i=0;i3;i++)

{

ellipse(x-98,y+100+i,255,371,100,80);

ellipse(x-20,y+30+i,260,358,140,140);

ellipse(x+224,y+20+i,180,218,160,140);

}

/*画侧枝*/

ellipse(x+70,y+34,180,233,140,140);

ellipse(x,y+40,205,255,100,120);

ellipse(x+135,y-30,209,249,72,120);

ellipse(x,y+20,263,301,100,120);

ellipse(x+85,y-10,278,305,100,120);

ellipse(x+100,y-62,282,308,90,120);

ellipse(x-50,y-10,277,314,30,120);

ellipse(x+70,y+80,222,266,52,120);

ellipse(x-60,y-45,229,266,52,120);

ellipse(x+79,y-45,229,266,52,120);

ellipse(x+84,y,224,273,52,120);

ellipse(x+110,y+40,240,282,100,120);

/*画紫花骨朵花萼*/

ellipse(x+120,y-6,200,340,17,25);

ellipse(x+120,y+7,160,380,17,27);

floodfill(x+122,y+30,10);

/*画黄花骨朵花萼*/

ellipse(x-70,y+15,140,390,17,20);

ellipse(x-75,y-10,205,340,10,30);

ellipse(x-60,y-10,195,340,5,30);

floodfill(x-70,y+32,10);

/*画叶*/

/*画右边的叶子*/

elli(x+168,y+282,10,20,-40);

elli(x+160,y+252,8,16,260);

elli(x+145,y+270,8,16,-15);

elli(x+156,y+224,10,20,-45);

elli(x+150,y+200,8,16,270);

elli(x+135,y+220,8,16,-10);

elli(x+146,y+144,8,16,-80);

elli(x+130,y+130,6,12,235);

elli(x+125,y+154,7,14,-10);

elli(x+78,y+98,6,12,-90);

elli(x+60,y+90,5,10,180);

elli(x+70,y+109,5,10,-45);

/*画左边的叶子*/

elli(x-125,y+270,12,24,60);

elli(x-95,y+270,10,20,10);

elli(x-110,y+245,10,20,90);

elli(x-105,y+220,10,20,45);

elli(x-100,y+190,8,16,135);

elli(x-75,y+210,8,16,-45);

/*画中间的叶子*/

elli(x+65,y+190,10,20,-45);

elli(x+40,y+185,8,16,0);

elli(x+55,y+165,8,16,90);

}/*主程序*/

main()

{

int driver=VGA,mode=VGAHI;

initgraph(driver,mode,"C:\TC");

cleardevice();

hua(450,90);

setcolor(10);

rectangle(0,0,639,479);

getch();

closegraph();

}

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