MATLAB 画一株会害羞的含羞草
鼠标在叶子或花朵处滑动就可使其收缩。完整代码：function mimoset1=0:pi/100:pi+2*pi/100;y=5*abs(sin(t1).^(1/2));y(t1>pi)=-y(t1>pi);t1=t1.*cos(pi/9)-y.*sin(pi/9);y=t1.*sin(pi/9)+y.*cos(pi/9);T=[];Y=[];for i=1:20T=[T,(i-1)
文章共15,780字 · 阅读需要大约53分钟
一键AI生成摘要，助你高效阅读
问答
·
鼠标在叶子或花朵处滑动就可使其收缩。
完整代码：
function mimose
t1=0:pi/100:pi+2*pi/100;
y=5*abs(sin(t1).^(1/2));
y(t1>pi)=-y(t1>pi);
t1=t1.*cos(pi/9)-y.*sin(pi/9);
y=t1.*sin(pi/9)+y.*cos(pi/9);
T=[];
Y=[];
for i=1:20
T=[T,(i-1)*(pi+2*pi/100)+t1];
Y=[Y,y];
end
L=length(T);
t2=linspace(pi/8,pi-2*pi/5,L);
Y=Y.*sin(t2);
X=T.*cos(pi)-Y.*sin(pi);
Y=T.*sin(pi)+Y.*cos(pi);
X=X-min(X);
X=X.*0.8;
Y=Y.*1.5;
fig=figure('units','pixels',...
'position',[500 100 500 500],...
'Numbertitle','off',...
'Color',[1 1 1],...
'resize','off',...
'visible','on',...
'name','mimose',...
'menubar','none');
ax=axes('Units','pixels',...
'parent',fig,...
'Color',[0.2667 0.4039 0.2745],...
'Position',[0 0 500 500],...
'XLim',[0 100],...
'YLim',[0 100],...
'XColor',[1 1 1],...
'YColor',[1 1 1]);
hold(ax,'on')
%plot(ax,X+20,Y+50)
drawBranch([20,0],[50,10])
drawBranch([20,0],[35,12])
drawBranch([0,0],[15,45])
drawBranch([4,0],[0,20])
leaf.l1=drawLeaf([50,10]+1.*[cos(pi/1.7),sin(pi/1.7)],pi/1.7,X,Y,0.8,1);
leaf.l2=drawLeaf([50,10]+1.*[cos(-pi/8),sin(-pi/8)],-pi/8,X,Y,0.8,1);
leaf.l3=drawLeaf([50,10]+1.*[cos(pi/12),sin(pi/12)],pi/12,X,Y,1,1);
leaf.l4=drawLeaf([50,10]+1.*[cos(pi/3),sin(pi/3)],pi/3,X,Y,1,1);
leaf.l5=drawLeaf([0,45]+1.*[cos(pi/3),sin(pi/3)],pi/3,X,Y,1,1);
leaf.l6=drawLeaf([0,30]+1.*[cos(pi/5),sin(pi/5)],pi/5,X,Y,1,1);
flower.fl1=drawFlower([35,12]);
flower.fl2=drawFlower([20,5]);
fps=25;
mitimer=timer('ExecutionMode', 'fixedRate', 'Period',1/fps, 'TimerFcn', @miMove);
start(mitimer)
function miMove(~,~)
for ii=1:6
if leaf.(['l',num2str(ii)]).ratio<1
leaf.(['l',num2str(ii)]).ratio=leaf.(['l',num2str(ii)]).ratio+0.05;
end
resetH(leaf.(['l',num2str(ii)]),X,Y);
end
for ii=1:2
if flower.(['fl',num2str(ii)]).ratio<1
flower.(['fl',num2str(ii)]).ratio=flower.(['fl',num2str(ii)]).ratio+0.05;
end
resetL(flower.(['fl',num2str(ii)]));
end
end
set(gcf,'WindowButtonMotionFcn',@whilemovefcn)
function whilemovefcn(~,~)
xy=get(gca,'CurrentPoint');
xw=xy(1,1);yw=xy(1,2);
pos=[xw,yw];
for ii=1:6
LF=leaf.(['l',num2str(ii)]);
if closeLeaf(LF.pos1,LF.pos2,pos)
if leaf.(['l',num2str(ii)]).ratio>0.2
leaf.(['l',num2str(ii)]).ratio=leaf.(['l',num2str(ii)]).ratio-0.2;
end
end
end
for ii=1:2
FL=flower.(['fl',num2str(ii)]);
if closeFlower(FL.pos,pos)
if flower.(['fl',num2str(ii)]).ratio>0.6
flower.(['fl',num2str(ii)]).ratio=flower.(['fl',num2str(ii)]).ratio-0.2;
end
end
end
end
function bool=closeLeaf(pos1,pos2,pos3)
pL=pos1+(pos2-pos1).*0.1;
pR=pos1+(pos2-pos1).*0.9;
lTotal=norm(pL-pos3)+norm(pR-pos3);
bool=lTotal<=norm(pos1-pos2);
end
function bool=closeFlower(pos1,pos2)
bool=norm(pos1-pos2)<=5;
end
function resetH(lf,X,Y)
X=X.*lf.Len;
Y=Y.*lf.h.*lf.ratio;
xl1=X.*cos(lf.alf)-Y.*sin(lf.alf)+lf.pos1(1);
yl1=X.*sin(lf.alf)+Y.*cos(lf.alf)+lf.pos1(2);
xl2=X.*cos(lf.alf)+Y.*sin(lf.alf)+lf.pos1(1);
yl2=X.*sin(lf.alf)-Y.*cos(lf.alf)+lf.pos1(2);
XL=[xl1,xl2(end:-1:1)];
YL=[yl1,yl2(end:-1:1)];
set(lf.LHdl,'XData',XL,'YData',YL);
end
function resetL(fl)
xf=fl.x.*fl.ratio+fl.pos(1);
yf=fl.y.*fl.ratio+fl.pos(2);
xxf(2:2:2*length(xf))=xf;
yyf(2:2:2*length(yf))=yf;
xxf(1:2:2*length(xf))=fl.pos(1);
yyf(1:2:2*length(yf))=fl.pos(2);
%set(fl.plHdl,'XData',xxf,'YData',yyf);
set(fl.scHdl,'XData',xf,'YData',yf);
set(fl.plHdl,'XData',xxf,'YData',yyf);
end
function fl=drawFlower(pos)
theta=rand([1,120]).*2.*pi;
r=rand([1,120]).*3+5;
xf=r.*cos(theta)+pos(1);
yf=r.*sin(theta)+pos(2);
xxf(2:2:2*length(xf))=xf;
yyf(2:2:2*length(yf))=yf;
xxf(1:2:2*length(xf))=pos(1);
yyf(1:2:2*length(yf))=pos(2);
plHdl=plot(ax,xxf,yyf,'Color',[0.7608 0.4863 0.7216],'LineWidth',1);
scHdl=scatter(ax,xf,yf,3,'filled','CData',[0.9569 0.9804 0.9333]);
fl.x=xf-pos(1);
fl.y=yf-pos(2);
fl.pos=pos;
fl.scHdl=scHdl;
fl.plHdl=plHdl;
fl.ratio=1;
theta2=rand([1,80]).*2.*pi;
r2=rand([1,80]).*1+3;
xf2=r2.*cos(theta2)+pos(1);
yf2=r2.*sin(theta2)+pos(2);
xxf2=[ones([1,length(xf2)]).*pos(1);xf2];
yyf2=[ones([1,length(yf2)]).*pos(2);yf2];
plot(ax,xxf2,yyf2,'Color',[0.7804 0.6078 0.5020],'LineWidth',1)
end
function drawBranch(pos1,pos2)
dir=(pos2-pos1)./norm(pos2-pos1);
len=norm(pos2-pos1);
xb=[0 1 1 0].*len;
yb=[len.*0.02,len.*0.012,-len.*0.012,-len.*0.02];
xxb=xb.*dir(1)-yb.*dir(2)+pos1(1);
yyb=xb.*dir(2)+yb.*dir(1)+pos1(2);
fill(ax,xxb,yyb,[0.8157 0.6431 0.6078],'EdgeColor',[0.6157 0.5529 0.4510],'LineWidth',1.5)
end
function lf=drawLeaf(pos,alf,X,Y,l,h)
X=X.*l;
Y=Y.*h;
xl1=X.*cos(alf)-Y.*sin(alf)+pos(1);
yl1=X.*sin(alf)+Y.*cos(alf)+pos(2);
xl2=X.*cos(alf)+Y.*sin(alf)+pos(1);
yl2=X.*sin(alf)-Y.*cos(alf)+pos(2);
XL=[xl1,xl2(end:-1:1)];
YL=[yl1,yl2(end:-1:1)];
lf.LHdl=fill(XL,YL,[0.4980 0.7216 0.3176]);
lf.pos1=pos;
lf.pos2=[pos(1)+l*51*cos(alf),pos(2)+l*51*sin(alf)];
lf.alf=alf;
lf.Len=l;
lf.h=h;
lf.ratio=1;
plot(ax,[pos(1),pos(1)+l*51*cos(alf)],[pos(2),pos(2)+l*51*sin(alf)],'Color',[0.6627 0.6980 0.4431],'LineWidth',3);
end
end
注释版本
function mimose
% @author:slandarer
% =========================================================================
% <构造含羞草叶子轮廓曲线>
% 大体是画一个一个压扁倾斜的半圆弧拼在一起
% 然后乘以一个类似弧形曲线让每片小叶子不一样长
% 计算一个压扁倾斜的半圆弧曲线
t1=0:pi/100:pi+2*pi/100;
y=5*abs(sin(t1).^(1/2));
y(t1>pi)=-y(t1>pi);
t1=t1.*cos(pi/9)-y.*sin(pi/9);
y=t1.*sin(pi/9)+y.*cos(pi/9);
% 将多个压扁倾斜的半圆弧曲线拼接
T=[];
Y=[];
for i=1:20
T=[T,(i-1)*(pi+2*pi/100)+t1];
Y=[Y,y];
end
% 乘以一个类似弧形曲线让每片小叶子不一样长
L=length(T);
t2=linspace(pi/8,pi-2*pi/5,L);
Y=Y.*sin(t2);
% 旋转并调整比例
X=T.*cos(pi)-Y.*sin(pi);
Y=T.*sin(pi)+Y.*cos(pi);
X=X-min(X);
X=X.*0.8;
Y=Y.*1.5;
% 创建figure及axes=========================================================
fig=figure('units','pixels',...
'position',[500 100 500 500],...
'Numbertitle','off',...
'Color',[1 1 1],...
'resize','off',...
'visible','on',...
'name','mimose',...
'menubar','none');
ax=axes('Units','pixels',...
'parent',fig,...
'Color',[0.2667 0.4039 0.2745],...
'Position',[0 0 500 500],...
'XLim',[0 100],...
'YLim',[0 100],...
'XColor',[1 1 1],...
'YColor',[1 1 1]);
hold(ax,'on')
%plot(ax,X+20,Y+50)
% 调用后面定义的函数绘图===================================================
% 绘制树枝
drawBranch([20,0],[50,10])
drawBranch([20,0],[35,12])
drawBranch([0,0],[15,45])
drawBranch([4,0],[0,20])
% 绘制树叶
leaf.l1=drawLeaf([50,10]+1.*[cos(pi/1.7),sin(pi/1.7)],pi/1.7,X,Y,0.8,1);
leaf.l2=drawLeaf([50,10]+1.*[cos(-pi/8),sin(-pi/8)],-pi/8,X,Y,0.8,1);
leaf.l3=drawLeaf([50,10]+1.*[cos(pi/12),sin(pi/12)],pi/12,X,Y,1,1);
leaf.l4=drawLeaf([50,10]+1.*[cos(pi/3),sin(pi/3)],pi/3,X,Y,1,1);
leaf.l5=drawLeaf([0,45]+1.*[cos(pi/3),sin(pi/3)],pi/3,X,Y,1,1);
leaf.l6=drawLeaf([0,30]+1.*[cos(pi/5),sin(pi/5)],pi/5,X,Y,1,1);
% 绘制花朵
flower.fl1=drawFlower([35,12]);
flower.fl2=drawFlower([20,5]);
% 鼠标移动回调=============================================================
fps=25;
mitimer=timer('ExecutionMode', 'fixedRate', 'Period',1/fps, 'TimerFcn', @miMove);
start(mitimer)
% 花朵树叶回缩函数
function miMove(~,~)
for ii=1:6
if leaf.(['l',num2str(ii)]).ratio<1 %如果收缩率小于1则每隔一段时间+0.05，以下同理
leaf.(['l',num2str(ii)]).ratio=leaf.(['l',num2str(ii)]).ratio+0.05;
end
resetH(leaf.(['l',num2str(ii)]),X,Y); % 依据收缩率重新绘制叶子
end
for ii=1:2
if flower.(['fl',num2str(ii)]).ratio<1
flower.(['fl',num2str(ii)]).ratio=flower.(['fl',num2str(ii)]).ratio+0.05;
end
resetL(flower.(['fl',num2str(ii)]));
end
end
set(gcf,'WindowButtonMotionFcn',@whilemovefcn)
% 鼠标移动调用的函数
function whilemovefcn(~,~)
% 检测鼠标位置
xy=get(gca,'CurrentPoint');
xw=xy(1,1);yw=xy(1,2);
pos=[xw,yw];
% 鼠标附近的叶子收缩率-0.2
for ii=1:6
LF=leaf.(['l',num2str(ii)]);
if closeLeaf(LF.pos1,LF.pos2,pos)% 如果距离叶子距离足够近
if leaf.(['l',num2str(ii)]).ratio>0.2
leaf.(['l',num2str(ii)]).ratio=leaf.(['l',num2str(ii)]).ratio-0.2;
end
end
end
% 鼠标附近的花收缩率-0.2
for ii=1:2
FL=flower.(['fl',num2str(ii)]);
if closeFlower(FL.pos,pos)% 如果距离花距离足够近
if flower.(['fl',num2str(ii)]).ratio>0.6
flower.(['fl',num2str(ii)]).ratio=flower.(['fl',num2str(ii)]).ratio-0.2;
end
end
end
end
% 距离检测函数，叶子形状近乎于椭圆，当距离俩焦点和小于一定值认为足够近
% 若足够近返回TRUE 否则返回FALSE
function bool=closeLeaf(pos1,pos2,pos3)
pL=pos1+(pos2-pos1).*0.1;
pR=pos1+(pos2-pos1).*0.9;
lTotal=norm(pL-pos3)+norm(pR-pos3);
bool=lTotal<=norm(pos1-pos2);
end
% 距离检测函数，花形状近乎于圆，当距离圆心小于一定值认为足够近
% 若足够近返回TRUE 否则返回FALSE
function bool=closeFlower(pos1,pos2)
bool=norm(pos1-pos2)<=5;
end
% 依据收缩率重新计算并绘制叶子
function resetH(lf,X,Y)
X=X.*lf.Len;
Y=Y.*lf.h.*lf.ratio;
xl1=X.*cos(lf.alf)-Y.*sin(lf.alf)+lf.pos1(1);
yl1=X.*sin(lf.alf)+Y.*cos(lf.alf)+lf.pos1(2);
xl2=X.*cos(lf.alf)+Y.*sin(lf.alf)+lf.pos1(1);
yl2=X.*sin(lf.alf)-Y.*cos(lf.alf)+lf.pos1(2);
XL=[xl1,xl2(end:-1:1)];
YL=[yl1,yl2(end:-1:1)];
set(lf.LHdl,'XData',XL,'YData',YL);
end
% 依据收缩率重新计算并绘制花朵
function resetL(fl)
xf=fl.x.*fl.ratio+fl.pos(1);
yf=fl.y.*fl.ratio+fl.pos(2);
xxf(2:2:2*length(xf))=xf;
yyf(2:2:2*length(yf))=yf;
xxf(1:2:2*length(xf))=fl.pos(1);
yyf(1:2:2*length(yf))=fl.pos(2);
%set(fl.plHdl,'XData',xxf,'YData',yyf);
set(fl.scHdl,'XData',xf,'YData',yf);
set(fl.plHdl,'XData',xxf,'YData',yyf);
end
% 绘制花朵（圆心）
function fl=drawFlower(pos)
% 随机生成一些点作为花蕊并绘图
theta=rand([1,120]).*2.*pi;
r=rand([1,120]).*3+5;
xf=r.*cos(theta)+pos(1);
yf=r.*sin(theta)+pos(2);
xxf(2:2:2*length(xf))=xf;
yyf(2:2:2*length(yf))=yf;
xxf(1:2:2*length(xf))=pos(1);
yyf(1:2:2*length(yf))=pos(2);
plHdl=plot(ax,xxf,yyf,'Color',[0.7608 0.4863 0.7216],'LineWidth',1);
scHdl=scatter(ax,xf,yf,3,'filled','CData',[0.9569 0.9804 0.9333]);
% 存储基础信息到实类
fl.x=xf-pos(1);
fl.y=yf-pos(2);
fl.pos=pos;
fl.scHdl=scHdl;
fl.plHdl=plHdl;
fl.ratio=1;
% 计算可伸缩部分花蕊坐标，绘图，存储信息
theta2=rand([1,80]).*2.*pi;
r2=rand([1,80]).*1+3;
xf2=r2.*cos(theta2)+pos(1);
yf2=r2.*sin(theta2)+pos(2);
xxf2=[ones([1,length(xf2)]).*pos(1);xf2];
yyf2=[ones([1,length(yf2)]).*pos(2);yf2];
plot(ax,xxf2,yyf2,'Color',[0.7804 0.6078 0.5020],'LineWidth',1)
end
% 绘制树枝 （端点1，端点2）
function drawBranch(pos1,pos2)
% 依据起始及末尾两点计算一个一头宽一头窄四边形坐标数据并绘图
dir=(pos2-pos1)./norm(pos2-pos1);
len=norm(pos2-pos1);
xb=[0 1 1 0].*len;
yb=[len.*0.02,len.*0.012,-len.*0.012,-len.*0.02];
xxb=xb.*dir(1)-yb.*dir(2)+pos1(1);
yyb=xb.*dir(2)+yb.*dir(1)+pos1(2);
fill(ax,xxb,yyb,[0.8157 0.6431 0.6078],'EdgeColor',[0.6157 0.5529 0.4510],'LineWidth',1.5)
end
% 绘制叶子(起始位置，叶子方向，轮廓x数据，轮廓y数据，轮廓x方向放缩比例，轮廓y方向放缩比例)
function lf=drawLeaf(pos,alf,X,Y,l,h)
X=X.*l; % 放缩叶子长度
Y=Y.*h; % 放缩叶子宽窄
% 叶子数据旋转并把两个叶子数据并在一起
xl1=X.*cos(alf)-Y.*sin(alf)+pos(1);
yl1=X.*sin(alf)+Y.*cos(alf)+pos(2);
xl2=X.*cos(alf)+Y.*sin(alf)+pos(1);
yl2=X.*sin(alf)-Y.*cos(alf)+pos(2);
XL=[xl1,xl2(end:-1:1)];
YL=[yl1,yl2(end:-1:1)];
% 绘图
lf.LHdl=fill(XL,YL,[0.4980 0.7216 0.3176]);
% 基础数据存到实类里
lf.pos1=pos;
lf.pos2=[pos(1)+l*51*cos(alf),pos(2)+l*51*sin(alf)];
lf.alf=alf;
lf.Len=l;
lf.h=h;
lf.ratio=1;
% 绘制一下叶子中线
plot(ax,[pos(1),pos(1)+l*51*cos(alf)],[pos(2),pos(2)+l*51*sin(alf)],'Color',[0.6627 0.6980 0.4431],'LineWidth',3);
end
end
旨在为数千万中国开发者提供一个无缝且高效的云端环境，以支持学习、使用和贡献开源项目。
更多推荐
11
0- 0
已为社区贡献11条内容
所有评论(0)