Python&Matlab实现樱花的绘制
目录
1.锦短情长
2. 一场樱花雨(Matlab)
3.樱花树(Python)
1.锦短情长为什么选择这个标题，借鉴了一封情书里面的情长纸短，还吻你万千。
锦短情长
都只谓人走茶凉，怎感觉锦短情长？
一提起眼泪汪汪，是明月人心所向？
2. 一场樱花雨(Matlab)
function pingba
hold on,axis equal
axis(0.5+[-10,50,0,50])
set(gca,'xtick',[],'ytick',[],'xcolor','w','ycolor','w')
set(gca,'color',[0.5020 0.5020 0.5020])
length_trunk=6;
width_trunk=4;
k1=0.9;
k2=0.8;
number_branch=15;
alp=pi/10;
length_branch=k1*length_trunk;
width_branch=k2*width_trunk;
trunk=[12,0;12,length_trunk];
plot(trunk(:,1),trunk(:,2),'color',[0 0 0],'Linewidth',width_trunk)
begins=[trunk(2,:),pi/2,1];
grow=begins;
plotdata=[0 0 0 0 0 0 0 0];
plotdata(1,:)=[];
for i=1:number_branch
control=randi(25,[length(grow(:,1)),1])>=10;
ag=grow(:,3);
l=length(ag);
parta=[length_branch.*k1.^grow(:,4).*cos(ag+ones(l,1)*alp),length_branch.*k1.^grow(:,4).*sin(ag+ones(l,1)*alp),ones(l,1)*alp,ones(l,1)];
partb=[length_branch.*k1.^grow(:,4).*cos(ag-ones(l,1)*alp),length_branch.*k1.^grow(:,4).*sin(ag-ones(l,1)*alp),-ones(l,1)*alp,ones(l,1)];
parta2=[0.8.*length_branch.*k1.^grow(:,4).*cos(ag),0.8.*length_branch.*k1.^grow(:,4).*sin(ag),zeros(l,1),ones(l,1)];
partb2=[0.8.*length_branch.*k1.^grow(:,4).*cos(ag),0.8.*length_branch.*k1.^grow(:,4).*sin(ag),zeros(l,1),ones(l,1)];
parta=control.*parta+(1-control).*parta2;
partb=control.*partb+(1-control).*partb2;
parta=parta+grow;
partb=partb+grow;
congress=[parta;partb];
grow=[grow;grow];
judge=[grow,congress];
judge=unique(judge,'rows');
grow=judge(:,5:end);
plotdata=[plotdata;judge];
end
for i=1:number_branch
temp_w=width_branch*0.8^i;
temp_branch=plotdata(plotdata(:,4)==i,:);
plx=[temp_branch(:,1),temp_branch(:,5)];
ply=[temp_branch(:,2),temp_branch(:,6)];
plx=plx';ply=ply';
plot(plx,ply,'color',[0 0 0]+i*[0.3020 0.3020 0.3020]./number_branch,'Linewidth',temp_w)
end
bloom_pos=plotdata(plotdata(:,8)==number_branch+1,[5,6]);
scatter(bloom_pos(:,1),bloom_pos(:,2),10,'CData',[0.8549 0.6824 0.6824])
bloom_pos=plotdata(plotdata(:,8)==number_branch,[5,6]);
scatter(bloom_pos(:,1),bloom_pos(:,2),8,'CData',[0.7451 0.5961 0.5961].*0.97)
end
3.樱花树(Python)
import turtle as T
import random
import time
#=======画樱花的躯干(60,t)===============
T.title('凋落的樱花')
def Tree(branch, t):
time.sleep(0.0005)
if branch > 3:
if 8 <= branch <= 12:
if random.randint(0, 2) == 0:
t.color('snow') # 白
else:
t.color('lightcoral') # 淡珊瑚色
t.pensize(branch / 3)
elif branch < 8:
if random.randint(0, 1) == 0:
t.color('snow')
else:
t.color('lightcoral') # 淡珊瑚色
t.pensize(branch / 2)
else:
t.color('sienna') # 赭(zhě)色
t.pensize(branch / 10) # 6
t.forward(branch)
a = 1.5 * random.random()
t.right(20 * a)
b = 1.5 * random.random()
Tree(branch - 10 * b, t)
t.left(40 * a)
Tree(branch - 10 * b, t)
t.right(20 * a)
t.up()
t.backward(branch)
t.down()
#=============掉落的花瓣===================
def Petal(m, t):
for i in range(m):
a = 200 - 400 * random.random()
b = 10 - 20 * random.random()
t.up()
t.forward(b)
t.left(90)
t.forward(a)
t.down()
t.color('lightcoral') # 淡珊瑚色
t.circle(1)
t.up()
t.backward(a)
t.right(90)
t.backward(b)
#=======绘图区域============
t = T.Turtle()
# 画布大小
w = T.Screen()
t.hideturtle() # 隐藏画笔
t.getscreen().tracer(5, 0)
w.screensize(bg='wheat') # wheat小麦
t.left(90)
t.up()
t.backward(150)
t.down()
t.color('sienna')
#=====画樱花的躯干===========
Tree(60, t)
# 掉落的花瓣
Petal(200, t)
w.exitonclick()
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