有趣的matlab编程
2021/5/17 20:55:39
本文主要是介绍有趣的matlab编程，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！
1、绘制三维爱心
clc
clear
[X,Y,Z] = meshgrid(linspace(-3,3,101));
F = -X.^2.*Z.^3-(9/80).*Y.^2.*Z.^3+(X.^2+(9/4).*Y.^2+Z.^2-1).^3;
hFigure = figure;
sz = get(hFigure, 'Position');
set(hFigure, 'Position', [sz(1)-0.15*sz(3) sz(2) 1.3*sz(3) sz(4)]);
set(hFigure,'color','w', 'menu','none')
hAxes = axes('Parent',hFigure,'NextPlot','add',...
'DataAspectRatio',[1 1 1],...
'XLim',[30 120],'YLim',[35 65],'ZLim',[30 75]);
view([-39 30]);
axis off
hidden on
p = patch(isosurface(F,-0.001));
set(p,'FaceColor','w','EdgeColor','none');
for iX = [35 38 41 45 48 51 54 57 61 64 67]
plane = reshape(F(:,iX,:),101,101);
cData = contourc(plane,[0 0]);
xData = iX.*ones(1,cData(2,1));
plot3(hAxes,xData,cData(2,2:end),cData(1,2:end),'k');
pause(.1), drawnow
end
for iY = [41 44 47 51 55 58 61]
plane = reshape(F(iY,:,:),101,101);
cData = contourc(plane,[0 0]);
yData = iY.*ones(1,cData(2,1));
plot3(hAxes,cData(2,2:end),yData,cData(1,2:end),'k');
pause(.1), drawnow
end
for iZ = [36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 69 71]
plane = F(:,:,iZ);
cData = contourc(plane,[0 0]);
startIndex = 1;
if size(cData,2) > (cData(2,1)+1)
startIndex = cData(2,1)+2;
zData = iZ.*ones(1,cData(2,1));
plot3(hAxes,cData(1,2:(startIndex-1)),...
cData(2,2:(startIndex-1)),zData,'k');
end
zData = iZ.*ones(1,cData(2,startIndex));
plot3(hAxes,cData(1,(startIndex+1):end),...
cData(2,(startIndex+1):end),zData,'k');
pause(.1), drawnow
end
set(p,'faceColor','r','EdgeColor','w');
pause(.2)
set(p,'faceColor','w','EdgeColor','r')
pause(.2)
text(7,50,70,'I', 'fontWeight','bold','FontAngle','italic','fontsize',100)
pause(.5)
text(80,50,43,'YOU', 'fontWeight','bold','FontAngle','italic','fontsize',100)
pause(.2)
%设置签名
line([20 80],[50 50],[52.5 52.5], 'color','k')
line([50 50],[20 80],[52.5 52.5], 'color','k')
line([50 50],[50 50],[30 80], 'color','k')
text(20,50,50,'x')
text(48,20,50,'y')
text(45,50,80,'z')
text(30,60,30,'(x^2+9/4y^2+z^2-1)^3 - x^2z^3-9/80y^2z^3=0', 'fontsize',12)
text(35,45,30,'-3<x,y,z costs(jj)
costchart(setOpen(I)) = costs(jj);
setOpenCosts(I) = costs(jj);
setOpenHeuristics(I) = heuristics(jj);
fieldpointers(setOpen(I)) = movementdirections(jj);
end
% else node has already been CLOSED, so check to see if we have
% found a better route to it.
else
% find relevant node in CLOSED
I = find(setClosed == posinds(jj));
% update if we have a better route
if setClosedCosts(I) > costs(jj)
costchart(setClosed(I)) = costs(jj);
setClosedCosts(I) = costs(jj);
fieldpointers(setClosed(I)) = movementdirections(jj);
end
end
end
end
if isempty(setOpen) break; end
set(axishandle,'CData',[costchart costchart(:,end); costchart(end,:) costchart(end,end)]);
% hack to make image look right
set(gca,'CLim',[0 1.1*max(costchart(find(costchart < Inf)))]);
axis off;
drawnow;
end
if max(ismember(setOpen,goalposind))
disp('Solution found!');
% now find the way back using FIELDPOINTERS, starting from goal position
p = findWayBack(goalposind,fieldpointers);
% plot final path
plot(p(:,2)+0.5,p(:,1)+0.5,'Color',0.2*ones(3,1),'LineWidth',4);
axis off;
drawnow;
% celebrate
[y,Fs] = audioread('wee.wav'); sound(y,Fs);
elseif isempty(setOpen)
axis off;
disp('No Solution!');
[y,Fs] = audioread('pewee-ahh.wav');
sound(y,Fs);
end
% end of the main function
%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function p = findWayBack(goalposind,fieldpointers)
% This function will follow the pointers from the goal position to the
% starting position
n = length(fieldpointers); % length of the field
posind = goalposind;
% convert linear index into [row column]
[py,px] = ind2sub([n,n],posind);
% store initial position
p = [py px];
% until we are at the starting position
while ~strcmp(fieldpointers{posind},'S')
switch fieldpointers{posind}
case 'L' % move left
px = px - 1;
case 'R' % move right
px = px + 1;
case 'U' % move up
py = py - 1;
case 'D' % move down
py = py + 1;
end
p = [p; py px];
% convert [row column] to linear index
posind = sub2ind([n n],py,px);
end
% end of this function
%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function [cost,heuristic,posinds] = findFValue(posind,costsofar,field, ...
goalind,heuristicmethod)
% This function finds the movement COST for each tile surrounding POSIND in
% FIELD, returns their position indices POSINDS. They are ordered: right,
% left, down, up.
n = length(field); % length of the field
% convert linear index into [row column]
[currentpos(1) currentpos(2)] = ind2sub([n n],posind);
[goalpos(1) goalpos(2)] = ind2sub([n n],goalind);
% places to store movement cost value and position
cost = Inf*ones(4,1); heuristic = Inf*ones(4,1); pos = ones(4,2);
% if we can look left, we move from the right
newx = currentpos(2) - 1; newy = currentpos(1);
if newx > 0
pos(1,:) = [newy newx];
switch lower(heuristicmethod)
case 'euclidean'
heuristic(1) = abs(goalpos(2)-newx) + abs(goalpos(1)-newy);
case 'taxicab'
heuristic(1) = abs(goalpos(2)-newx) + abs(goalpos(1)-newy);
end
cost(1) = costsofar + field(newy,newx);
end
% if we can look right, we move from the left
newx = currentpos(2) + 1; newy = currentpos(1);
if newx 0
pos(3,:) = [newy newx];
switch lower(heuristicmethod)
case 'euclidean'
heuristic(3) = abs(goalpos(2)-newx) + abs(goalpos(1)-newy);
case 'taxicab'
heuristic(3) = abs(goalpos(2)-newx) + abs(goalpos(1)-newy);
end
cost(3) = costsofar + field(newy,newx);
end
% if we can look down, we move from up
newx = currentpos(2); newy = currentpos(1)+1;
if newy <= n
pos(4,:) = [newy newx];
switch lower(heuristicmethod)
case 'euclidean'
heuristic(4) = abs(goalpos(2)-newx) + abs(goalpos(1)-newy);
case 'taxicab'
heuristic(4) = abs(goalpos(2)-newx) + abs(goalpos(1)-newy);
end
cost(4) = costsofar + field(newy,newx);
end
% return [row column] to linear index
posinds = sub2ind([n n],pos(:,1),pos(:,2));
% end of this function
%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function [field, startposind, goalposind, costchart, fieldpointers] = ...
initializeField(n,wallpercent)
% This function will create a field with movement costs and walls, a start
% and goal position at random, a matrix in which the algorithm will store
% f values, and a cell matrix in which it will store pointers
% create the field and place walls with infinite cost
field = ones(n,n) + 10*rand(n,n);
field(ind2sub([n n],ceil(n^2.*rand(floor(n*n*wallpercent),1)))) = Inf;
% create random start position and goal position
startposind = sub2ind([n,n],ceil(n.*rand),ceil(n.*rand));
goalposind = sub2ind([n,n],ceil(n.*rand),ceil(n.*rand));
% force movement cost at start and goal positions to not be walls
field(startposind) = 0; field(goalposind) = 0;
% put not a numbers (NaN) in cost chart so A* knows where to look
costchart = NaN*ones(n,n);
% set the cost at the starting position to be 0
costchart(startposind) = 0;
% make fieldpointers as a cell array
fieldpointers = cell(n,n);
% set the start pointer to be "S" for start, "G" for goal
fieldpointers{startposind} = 'S'; fieldpointers{goalposind} = 'G';
% everywhere there is a wall, put a 0 so it is not considered
fieldpointers(field == Inf) = {0};
% end of this function
%%%%%%%%%%%%%%%%%%%%
function axishandle = createFigure(field,costchart,startposind,goalposind)
% This function creates a pretty figure
% If there is no figure open, then create one
if isempty(gcbf)
figure('Position',[395 86 894 700],'Units','Normalized','Name','A星算法路径搜寻演示 —— matlab爱好者出品','NumberTitle','off','Color','w','Menubar','none');
axes('position', [0.01 0.01 0.98 0.98],'FontSize',12, ...
'FontName','Helvetica');
axis off;
else
% get the current figure, and clear it
gcf; cla;
end
n = length(field);
% plot field where walls are black, and everything else is white
field(field < Inf) = 0;
pcolor([1:n+1],[1:n+1],[field field(:,end); field(end,:) field(end,end)]);
% set the colormap for the ploting the cost and looking really nice
cmap = flipud(colormap('jet'));
% make first entry be white, and last be black
cmap(1,:) = zeros(3,1); cmap(end,:) = ones(3,1);
% apply the colormap, but make red be closer to goal
colormap(flipud(cmap));
% keep the plot so we can plot over it
hold on;
% now plot the f values for all tiles evaluated
axishandle = pcolor([1:n+1],[1:n+1],[costchart costchart(:,end); costchart(end,:) costchart(end,end)]);
% plot goal as a yellow square, and start as a green circle
[goalposy,goalposx] = ind2sub([n,n],goalposind);
[startposy,startposx] = ind2sub([n,n],startposind);
plot(goalposx+0.5,goalposy+0.5,'ys','MarkerSize',10,'LineWidth',6);
plot(startposx+0.5,startposy+0.5,'go','MarkerSize',10,'LineWidth',6);
% add a button so that can re-do the demonstration
uicontrol('Style','pushbutton','String','更新', 'FontSize',12, ...
'Position', [1 1 60 40], 'Callback','astardemo');
% end of this function
10、时钟
function clockplot() % Best in fullscreen mode % VERSION 1.1 % Features: % 1. ANALOG + DIGITAL displays % 2. Black dot in the centre indicates 'P.M' and White dot in the centre indicates 'A.M' % 3. Indicates the year month date and the week numbers also. % 4. The digital display of the time is shown on the corresponding hand % 5. Duration of one tick of the second hand can be set % 6. uses opengl rendering and the hands run more smoothly than in version 1.0 % 7. Display a complete digital display in the form H:M:S:mS... & H --> 0 to 24 % NOTE: CLOCK STARTS AND IS MAITAINED ACCORDING % TO TIME INDICATED BY THE INBUILT COMMAND "clock" % By Sunil Anandatheertha % !x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x! % !x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x! % IMPORTANT NOTE: USE CTRL+C IN COMMAND LINE or FIGURE WINDOW TO END THE PROGRAM % !x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x! % !x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x!x! % \.//\.//\.// % \.//\.//\.// rs=10; % radius of second hand n = 1; hs=[]; hm=[]; hh=[]; digsec=[]; digmin=[]; dighr=[]; digdate1=[]; digdate2=[]; digdate3=[]; digdate4=[]; digdate5=[]; ampm=[]; digtime1=[];digtime2=[];digtime3=[];digtime4=[]; setfigureproperties; setaxisproperties; onetick=0.0025;% (set the duration of one tick. NOTE: an approx.) while n0&&x1 && number=8 && number=15 && number-22 && number<=31 week=4; end end % \.//\.//\.// % \.//\.//\.//
11 、绘制烟花
function firework
% 烟花烟花满天飞
OldHandle = findobj( 'Type', 'figure', 'Tag', 'FireWork' );
if ishandle(OldHandle)
close(OldHandle);
end
% 图形窗口初始化
figure('units','normalized','position',[0.1 0.1 0.8 0.8],...
'menubar','none','name','烟花满天飞',...
'numbertitle','off','color',[0 0 0],'tag','FireWork');
% 烟花炸开前的初始位置
h0 = line(0,0,0,'marker','.',...
'markersize',18,...
'MarkerEdgeColor',[1 1 1],...
'MarkerFaceColor',[1 1 1],...
'color',[0 0 0]);
hold on;
h = scatter3(0,0,0,60,'k','filled','Marker','h','Visible','off');
% 设置坐标系显示属性
axis equal;
axis([-50 50 -50 50 0 120]);
axis off;
view(-42,22);
% 设置参数
v0 = 45; % 烟花头初始速度
g = -9.8; % 重力加速度
usedtime = -v0/g - 0.8; % 烟花头爆炸前所经历时间
zs = v0*usedtime+0.5*g*usedtime^2; %烟花头爆炸前达到的最高高度
rng(1);
theta = rand(500,1)*2*pi; % 各粒子速度的方位角
phi = rand(500,1)*2*pi-pi; % 各粒子速度的仰角
v1 = 20; % 粒子的初始速度
xi = v1*cos(phi).*cos(theta); % 各粒子x方向的速度
yi = v1*cos(phi).*sin(theta); % 各粒子y方向的速度
age = 20; % 粒子生存期
% 常用颜色矩阵
colormat = [1.0 0.5 0.5
1.0 0.75 0.5
1.0 1.0 0.5
0.75 1.0 0.5
0.5 1.0 0.5
0.5 1.0 0.75
0.5 1.0 1.0
0.5 0.75 1.0
0.5 0.5 1.0
0.75 0.5 1.0
1.0 0.5 1.0
1.0 0.5 0.75];
% 随机产生各粒子对应的颜色序号
colorid = randsample(12,500,true);
% 粒子对应的颜色矩阵
colormat0 = colormat(colorid,:);
% 粒子颜色与背景色（夜色）的距离
colordist = sqrt(mean(sum(colormat0.^2,2)));
rate = 0.25; % 颜色随时间的衰减率
timerA = timer('TimerFcn',@TimerFcnA,...
'executionmode','fixedspacing','Period',0.1);
start(timerA);
timerB = timer('TimerFcn',{@TimerFcnB},...
'executionmode','fixedspacing','period',0.1);
%--------------------------------------------------------------------------
% 定时器回调函数（烟花头）
%--------------------------------------------------------------------------
function TimerFcnA(timerA,~)
ta = get(timerA,'TasksExecuted')*0.1;
if ta 0 && colordist>=0.02
colormat = colormat0*(1-rate*tb);
colordist = sqrt(mean(sum(colormat.^2,2)));
zi = zs+v1*sin(phi)*tb+0.5*g*tb^2;
set(h,'XData',xi*tb,'YData',yi*tb,'ZData',zi,'CData',colormat);
drawnow;
age = age-0.1;
else
stop(timerB);
delete(h);
end
end
%-------------------
end
12
function Sponge(n)
if (n==0)
vertices=[0 0 0;1 0 0;1 1 0;0 1 0;0 0 1;1 0 1;1 1 1;0 1 1];
faces=[1 2 6 5;2 3 7 6;3 4 8 7;4 1 5 8;1 2 3 4;5 6 7 8];
patch('Vertices',vertices,'Faces',faces,'FaceVertexCData',hsv(6),'FaceColor','flat')
good_axis
else
levelcontrol=10^n;
L=(levelcontrol/(3^n));
l=ceil(L);
carp(0,0,0,levelcontrol,0,0,levelcontrol,levelcontrol,0,0,levelcontrol,0,0,0,levelcontrol,levelcontrol,0,levelcontrol,levelcontrol,levelcontrol,levelcontrol,0,levelcontrol,levelcontrol,l)
good_axis;
end
%--------------------------------------------------------------------------
function carp(x1,y1,z1,x4,y4,z4,x52,y52,z52,x49,y49,z49,x13,y13,z13,x16,y16,z16,x64,y64,z64,x61,y61,z61,limit)
if(abs(x1-x4)>limit|abs(x16-x4)>limit|abs(x16-x13)>limit|abs(x13-x1)>limit|abs(x1-x49)>limit|abs(x61-x49)>limit|abs(x61-x13)>limit|abs(x64-x16)>limit|abs(x64-x52)>limit|abs(x52-x4)>limit|abs(x64-x61)>limit|abs(x52-x49)>limit|...
abs(y1-y4)>limit|abs(y16-y4)>limit|abs(y16-y13)>limit|abs(y13-y1)>limit|abs(y1-y49)>limit|abs(y61-y49)>limit|abs(y61-y13)>limit|abs(y64-y16)>limit|abs(y64-y52)>limit|abs(y52-y4)>limit|abs(y64-y61)>limit|abs(y52-y49)>limit|...
abs(z1-z4)>limit|abs(z16-z4)>limit|abs(z16-z13)>limit|abs(z13-z1)>limit|abs(z1-z49)>limit|abs(z61-z49)>limit|abs(z61-z13)>limit|abs(z64-z16)>limit|abs(z64-z52)>limit|abs(z52-z4)>limit|abs(z64-z61)>limit|abs(z52-z49)>limit)
a=abs((x4-x1)/3);
b=abs((y49-y1)/3);
c=abs((z13-z1)/3);
x2=x1+a; y2=y1; z2=z1;
x3=x1+2*a; y3=y1; z3=z1;
x5=x1; y5=y1; z5=z1+c;
x6=x1+a; y6=y1; z6=z1+c;
x7=x1+2*a; y7=y1; z7=z1+c;
x8=x4; y8=y1; z8=z1+c;
x9=x1; y9=y1; z9=z1+2*c;
x10=x1+a; y10=y1; z10=z1+2*c;
x11=x1+2*a; y11=y1; z11=z1+2*c;
x12=x4; y12=y1; z12=z1+2*c;
x14=x1+a; y14=y1; z14=z13;
x15=x1+2*a; y15=y1; z15=z13;
x17=x1; y17=y1+b; z17=z1;
x18=x1+a; y18=y1+b; z18=z1;
x19=x1+2*a; y19=y1+b; z19=z1;
x20=x4; y20=y1+b; z20=z1;
x21=x1; y21=y1+b; z21=z1+c;
x22=x1+a; y22=y1+b; z22=z1+c;
x23=x1+2*a; y23=y1+b; z23=z1+c;
x24=x4; y24=y1+b; z24=z1+c;
x25=x1; y25=y1+b; z25=z1+2*c;
x26=x1+a; y26=y1+b; z26=z1+2*c;
x27=x1+2*a; y27=y1+b; z27=z1+2*c;
x28=x4; y28=y1+b; z28=z1+2*c;
x29=x1; y29=y1+b; z29=z13;
x30=x1+a; y30=y1+b; z30=z13;
x31=x1+2*a; y31=y1+b; z31=z13;
x32=x4; y32=y1+b; z32=z13;
x33=x1; y33=y1+2*b; z33=z1;
x34=x1+a; y34=y1+2*b; z34=z1;
x35=x1+2*a; y35=y1+2*b; z35=z1;
x36=x4; y36=y1+2*b; z36=z1;
x37=x1; y37=y1+2*b; z37=z1+c;
x38=x1+a; y38=y1+2*b; z38=z1+c;
x39=x1+2*a; y39=y1+2*b; z39=z1+c;
x40=x4; y40=y1+2*b; z40=z1+c;
x41=x1; y41=y1+2*b; z41=z1+2*c;
x42=x1+a; y42=y1+2*b; z42=z1+2*c;
x43=x1+2*a; y43=y1+2*b; z43=z1+2*c;
x44=x4; y44=y1+2*b; z44=z1+2*c;
x45=x1; y45=y1+2*b; z45=z13;
x46=x1+a; y46=y1+2*b; z46=z13;
x47=x1+2*a; y47=y1+2*b; z47=z13;
x48=x4; y48=y1+2*b; z48=z13;
x50=x1+a; y50=y49; z50=z1;
x51=x1+2*a; y51=y49; z51=z1;
x53=x1; y53=y49; z53=z1+c;
x54=x1+a; y54=y49; z54=z1+c;
x55=x1+2*a; y55=y49; z55=z1+c;
x56=x4; y56=y49; z56=z1+c;
x57=x1; y57=y49; z57=z1+2*c;
x58=x1+a; y58=y49; z58=z1+2*c;
x59=x1+2*a; y59=y49; z59=z1+2*c;
x60=x4; y60=y49; z60=z1+2*c;
x62=x1+a; y62=y49; z62=z13;
x63=x1+2*a; y63=y49; z63=z13;
carp(x1,y1,z1,x2,y2,z2,x18,y18,z18,x17,y17,z17,x5,y5,z5,x6,y6,z6,x22,y22,z22,x21,y21,z21,limit);
carp(x2,y2,z2,x3,y3,z3,x19,y19,z19,x18,y18,z18,x6,y6,z6,x7,y7,z7,x23,y23,z23,x22,y22,z22,limit);
carp(x3,y3,z3,x4,y4,z4,x20,y20,z20,x19,y19,z19,x7,y7,z7,x8,y8,z8,x24,y24,z24,x23,y23,z23,limit);
carp(x17,y17,z17,x18,y18,z18,x34,y34,z34,x33,y33,z33,x21,y21,z21,x22,y22,z22,x38,y38,z38,x37,y37,z37,limit);
carp(x19,y19,z19,x20,y20,z20,x36,y36,z36,x35,y35,z35,x23,y23,z23,x24,y24,z24,x40,y40,z40,x39,y39,z39,limit);
carp(x33,y33,z33,x34,y34,z34,x50,y50,z50,x49,y49,z49,x37,y37,z37,x38,y38,z38,x54,y54,z54,x53,y53,z53,limit);
carp(x34,y34,z34,x35,y35,z35,x51,y51,z51,x50,y50,z50,x38,y38,z38,x39,y39,z39,x55,y55,z55,x54,y54,z54,limit);
carp(x35,y35,z35,x36,y36,z36,x52,y52,z52,x51,y51,z51,x39,y39,z39,x40,y40,z40,x56,y56,z56,x55,y55,z55,limit);
carp(x5,y5,z5,x6,y6,z6,x22,y22,z22,x21,y21,z21,x9,y9,z9,x10,y10,z10,x26,y26,z26,x25,y25,z25,limit);
carp(x7,y7,z7,x8,y8,z8,x24,y24,z24,x23,y23,z23,x11,y11,z11,x12,y12,z12,x28,y28,z28,x27,y27,z27,limit);
carp(x37,y37,z37,x38,y38,z38,x54,y54,z54,x53,y53,z53,x41,y41,z41,x42,y42,z42,x58,y58,z58,x57,y57,z57,limit);
carp(x39,y39,z39,x40,y40,z40,x56,y56,z56,x55,y55,z55,x43,y43,z43,x44,y44,z44,x60,y60,z60,x59,y59,z59,limit);
carp(x9,y9,z9,x10,y10,z10,x26,y26,z26,x25,y25,z25,x13,y13,z13,x14,y14,z14,x30,y30,z30,x29,y29,z29,limit);
carp(x10,y10,z10,x11,y11,z11,x27,y27,z27,x26,y26,z26,x14,y14,z14,x15,y15,z15,x31,y31,z31,x30,y30,z30,limit);
carp(x11,y11,z11,x12,y12,z12,x28,y28,z28,x27,y27,z27,x15,y15,z15,x16,y16,z16,x32,y32,z32,x31,y31,z31,limit);
carp(x25,y25,z25,x26,y26,z26,x42,y42,z42,x41,y41,z41,x29,y29,z29,x30,y30,z30,x46,y46,z46,x45,y45,z45,limit);
carp(x27,y27,z27,x28,y28,z28,x44,y44,z44,x43,y43,z43,x31,y31,z31,x32,y32,z32,x48,y48,z48,x47,y47,z47,limit);
carp(x41,y41,z41,x42,y42,z42,x58,y58,z58,x57,y57,z57,x45,y45,z45,x46,y46,z46,x62,y62,z62,x61,y61,z61,limit);
carp(x42,y42,z42,x43,y43,z43,x59,y59,z59,x58,y58,z58,x46,y46,z46,x47,y47,z47,x63,y63,z63,x62,y62,z62,limit);
carp(x43,y43,z43,x44,y44,z44,x60,y60,z60,x59,y59,z59,x47,y47,z47,x48,y48,z48,x64,y64,z64,x63,y63,z63,limit);
else
fillcub(x1,y1,z1,x4,y4,z4,x52,y52,z52,x49,y49,z49,x13,y13,z13,x16,y16,z16,x64,y64,z64,x61,y61,z61);
end
%--------------------------------------------------------------------------
function fillcub(a1,b1,c1,a2,b2,c2,a3,b3,c3,a4,b4,c4,a5,b5,c5,a6,b6,c6,a7,b7,c7,a8,b8,c8)
verticesA=[a1,b1,c1;a2,b2,c2;a3,b3,c3;a4,b4,c4;a5,b5,c5;a6,b6,c6;a7,b7,c7;a8,b8,c8];
faces=[1 2 6 5;2 3 7 6;3 4 8 7;4 1 5 8;1 2 3 4;5 6 7 8];
patch('Vertices',verticesA,'Faces',faces,'FaceVertexCData',hsv(6),'FaceColor','flat');
hold on;
%--------------------------------------------------------------------------
function good_axis
axis equal
view(3)
set(gca,'Visible','off')13、绘制网格三维图
grs80 = almanac('earth','grs80','km');
domeRadius = 3000; % km
domeLat = 39; % degrees
domeLon = -77; % degrees
domeAlt = 0; % km
[x,y,z] = sphere(20);
xLV = domeRadius * x;
yLV = domeRadius * y;
zLV = domeRadius * z;
zLV(zLV < 0) = 0;
figure('Renderer','opengl','color','k')
ax = axesm('globe','Geoid',grs80,'Grid','on', ...
'GLineWidth',1,'GLineStyle','-',...
'Gcolor',[0.9 0.9 0.1],'Galtitude',100);
set(ax,'Position',[0 0 1 1]);
axis equal off
view(3)
load topo
geoshow(topo,topolegend,'DisplayType','texturemap')
demcmap(topo)
land = shaperead('landareas','UseGeoCoords',true);
plotm([land.Lat],[land.Lon],'Color','black')
rivers = shaperead('worldrivers','UseGeoCoords',true);
plotm([rivers.Lat],[rivers.Lon],'Color','blue')
for az = -180 :.2 :30
view(az, 40)
drawnow
end
for el = 90 : -.2 : -90
view(30,el)
drawnow
end14绘制地球仪
15 绘制❤
clc;
clear all;
close all;
h=figure('color','k');axis off;
set(h,'menubar','none','toolbar','none');
hold on;
syms x y
s=uicontrol('style','pushbutton','units','normal','position',[.05 .05 .12 .05],'string','Close','callback','close all');
i=0.25;x=0;
a=[-1.5-(x*i) 1.5+(x*i) -1.5-(x*i) 1.5+(x*i)];
text(0,0,'武汉加油','HorizontalAlignment','center','FontSize',22,'color','r')
a=randn(1,75);c=randn(1,75);
h1=plot(a,c);
set(h1,'linestyle','none','marker','*','markersize',10,'color','w');
axis tight;
axis off;
axis equal;
iter=0;
while(iter<10)
x=3;
i=0.25;
while((x*i)0)
f1=inline('x.^6+y.^6+3*(x.^4)*(y.^2)+3*(x.^2)*(y.^4)-(x.^2)*(y.^3)-3*(x.^4)-6*(x.^2)*(y.^2)-3*(y.^4)+3*(x.^2)+3*(y.^2)-1');
f2=vectorize(f1);
h=ezplot(f2);
axis([-1.5-(x*i) 1.5+(x*i) -1.5-(x*i) 1.5+(x*i)]);
set(h,'LineWidth',6);
set(h,'LineStyle','-.','color','m');
x=x-1;
drawnow;
end
pause(0.1);
x=3;i=0.25;
while((x*i)<=0.90)
f1=inline('x.^6+y.^6+3*(x.^4)*(y.^2)+3*(x.^2)*(y.^4)-(x.^2)*(y.^3)-3*(x.^4)-6*(x.^2)*(y.^2)-3*(y.^4)+3*(x.^2)+3*(y.^2)-1');
f2=vectorize(f1);
h=ezplot(f2);
axis([-1.5-(x*i) 1.5+(x*i) -1.5-(x*i) 1.5+(x*i)]);
set(h,'LineWidth',6);
set(h,'LineStyle','-','color','r');
x=x+1;
drawnow;
end
iter=iter+1;
end
16 绘制星系
clc,clear; Theta = logspace(0,log10(12*pi),36*24+1); Radius = 12*pi+1-logspace(0,log10(12*pi),36*24+1); U = [log(Radius).*cos(Theta); log(Radius).*sin(Theta)]; Mr2 = @(Phi)[cos(Phi),-sin(Phi); sin(Phi),cos(Phi)]; V = Mr2(pi)*U; sample_step = 12; t = 1; time_lapse = 0.1; title_text = '双星系统合并动画'; filename = '双星系统合并动画.gif'; h = figure; set(h,'Position',get(0,'ScreenSize')); set(gcf,'Color',[0 0 0]); axis tight manual; for s = 1:sample_step:length(Theta) plot(U(1,s),U(2,s),'o','Color',[1 0 1],'Linewidth',13), hold on; plot(V(1,s),V(2,s),'o','Color',[0 1 1],'Linewidth',13), hold on; line(U(1,1:s),U(2,1:s),'Color',[1 0 1],'Linewidth',1.5), hold on; line(V(1,1:s),V(2,1:s),'Color',[0 1 1],'Linewidth',1.5), hold on; ax = gca; ax.Clipping = 'off'; set(ax,'Color',[0 0 0]); axis off; title(title_text,'FontSize',16,'Color',[1 1 1]), hold on; view(3); camroll(40); zoom(1.7); t = t+1; drawnow; frame = getframe(h); im = frame2im(frame); [imind,cm] = rgb2ind(im,256); if s == 1 imwrite(imind,cm,filename,'gif', 'Loopcount',Inf,'DelayTime',time_lapse); else imwrite(imind,cm,filename,'gif','WriteMode','append','DelayTime',time_lapse); end clf; end % Red screen set(gcf,'Color',[1 0 0]); frame = getframe(h); im = frame2im(frame); [imind,cm] = rgb2ind(im,256); imwrite(imind,cm,filename,'gif','WriteMode','append','DelayTime',time_lapse); % White screen set(gcf,'Color',[1 1 1]); frame = getframe(h); im = frame2im(frame); [imind,cm] = rgb2ind(im,256); imwrite(imind,cm,filename,'gif','WriteMode','append','DelayTime',time_lapse); % Red screen set(gcf,'Color',[1 0 0]); frame = getframe(h); im = frame2im(frame); [imind,cm] = rgb2ind(im,256); imwrite(imind,cm,filename,'gif','WriteMode','append','DelayTime',time_lapse); % Total paths + merged star ax = gca; set(gcf,'Color',[0 0 0]), set(ax,'Color',[0 0 0]); ax.Clipping = 'off'; line(U(1,1:length(Theta)),U(2,1:length(Theta)),'Color',[1 0 1],'Linewidth',1.5), hold on; line(V(1,1:length(Theta)),V(2,1:length(Theta)),'Color',[0 1 1],'Linewidth',1.5), hold on; plot(U(1,s),U(2,s),'o','Color',[1 0 0],'Linewidth',22), hold on; axis off; title(title_text,'FontSize',16,'Color',[1 1 1]), hold on; view(3); camroll(40); zoom(1.7); frame = getframe(h); im = frame2im(frame); [imind,cm] = rgb2ind(im,256); imwrite(imind,cm,filename,'gif','WriteMode','append','DelayTime',2*time_lapse);
17、绘制情人节礼物
function [] = Valentine(varargin)
if ischar(varargin{1})
someonespecial = varargin{1};
else
someonespecial='Me';
end
t=0:pi/2048:2*pi;
hold on
plot(1);
xcone=[-40 0 40];
ycone=[-20 -100 -20];
fill(xcone,ycone,'m');
for f=1:500
k1=0;
k2=0;
while (k1 <= 4 || k2 <= 4)
k1=floor(10*rand(1)); %outer flower
k2=floor(15*rand(1)); %inner flower
end
T1=2*pi*rand(1);
T2=2*pi*rand(1);
Roff=0;
Rin=0;
while (Roff == Rin || Roff <= 5 || Rin <= 0 || abs(Roff-Rin) Roff
bin=Roff;
Roff=Rin;
Rin=bin;
end
r1=sin(k1*t+T1)+Roff;
r2=sin(k2*t+T2)+Rin;
Rplace=50*rand(1);
Tplace=2*pi*rand(1);
Xoff=Rplace*cos(Tplace);
Yoff=Rplace*sin(Tplace);
x1=r1.*cos(t)+Xoff;
y1=r1.*sin(t)+Yoff;
x2=r2.*cos(t)+Xoff;
y2=r2.*sin(t)+Yoff;
FlowerColor=[rand(1) rand(1) rand(1)];
fill([x1 x2],[y1 y2],FlowerColor,'EdgeColor',FlowerColor)
end
axis equal
h = msgbox( ...
['Happy Valentines Day, ' someonespecial '!'], ...
'', ...
'warn' ...
);
end
这篇关于有趣的matlab编程的文章就介绍到这儿，希望我们推荐的文章对大家有所帮助，也希望大家多多支持为之网！
- 2024-07-02springboot项目无法注册到nacos-icode9专业技术文章分享
- 2024-06-26结对编程到底难不难？答案在这里
- 2024-06-19《2023版Java工程师》课程升级公告
- 2024-06-15matplotlib作图不显示3D图，怎么办？
- 2024-06-1503-Loki 日志监控
- 2024-06-1504-让LLM理解知识 -Prompt
- 2024-06-05做软件测试需要懂代码吗？
- 2024-06-0514-ShardingSphere的分布式主键实现
- 2024-06-03为什么以及如何要进行架构设计权衡？
- 2024-05-31全网首发第二弹！软考2024年5月《软件设计师》真题+解析+答案！（11-20题）
