前言
我们今天的任务很明确，我先系统梳理一下：
1.先用Python爬取一波漂亮的美女照片；
2.然后Python中炫酷的代码实现；
3.最后用matlab伺候，得到相同的结果。
1.Python爬取美女照片
1.1 留恋忘返的网址
站长素材-分享综合设计素材的平台 (chinaz.com)
1.2 Python代码
#~~~~欢迎关注公众号：电力系统与算法之美~~~~~~~~~~~~·
#~~~~~~~~~导入相关库~~~~~~~~~~~~~~~~~~~~·
import urllib.request
from lxml import etree
#~~~~~~~~~1.请求对象的定制~~~~~~~~~~~~~~~~~
def create_request(page):
if (page == 1):
url = 'https://sc.chinaz.com/tag_tupian/YaZhouMeiNv.html'
else:
url = 'https://sc.chinaz.com/tag_tupian/yazhoumeinv_' + str(page) + '.html'
# print(url)
headers = {
'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.104 Safari/537.36'
}
request = urllib.request.Request(url=url, headers=headers)
return request
#~~~~~~~~~~~2.获取网页的源码~~~~~~~~~~~~~~~~~~~~~
def get_content(request):
response = urllib.request.urlopen(request)
content = response.read().decode('utf-8')
return content
#~~~~~~~~~~~~~~~~~~~3.下载图片~~~~~~~~~~~~~~~~~~~~~~~~~~
def down_img(content):
# 下载文件格式：urllib.request.urlretrieve('图片地址','文件的名字')
tree = etree.HTML(content)
name_list = tree.xpath('//div[@id = "container"]//a/img/@alt')
# 一般涉及到图片的网站，都会进行懒加载，要把src换成src2(懒加载时，src会以src2出现)
src_list = tree.xpath('//div[@id = "container"]//a/img/@src2')
# print(len(name_list))
# print(len(src_list))
for i in range(len(name_list)):
name = name_list[i]
src = src_list[i]
url = 'https:' + src
url = url.replace('_s', '')
urllib.request.urlretrieve(url=url, filename='./meinv/' + name + '.jpg')
#~~~~~~~~~运行~~~~~~~~~~~~~~~
if __name__ == '__main__':
start_page = int(input('请输入起始页码：'))
end_page = int(input('请输入终止页码：'))
for page in range(start_page, end_page + 1):
#~~~~1.定制请求对象~~~~~
request = create_request(page)
#~~~~2.获取网页源码~~~~~
content = get_content(request)
#~~~~~3.解析源码并下载图片~~~
down_img(content)1.3 结果
温馨提示：meinv这个文件夹是提前建立的。
2.Python实现
2.1 条件准备
由1中爬取的照片，我们就可以为接下来的事做准备啦。选取十二张照片，如图：
2.2 运行展示
运行出来比下面这个还炫酷：
2.3 Python实现
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS3制作3D图片立方体旋转特效</title>
<link rel="stylesheet" href="css/index.css" rel="external nofollow" >
</head>
<body>
<!---->
<div class="wrap">
<!-- -->
<div class="cube">
<!--前面图片 -->
<div class="out_front">
<img src="img/1.jpg" class="pic">
</div>
<!--后面图片 -->
<div class="out_back">
<img src="img/2.jpg" class="pic">
</div>
<!--左图片 -->
<div class="out_left">
<img src="img/3.jpg" class="pic">
</div>
<!--右图片 -->
<div class="out_right">
<img src="img/4.jpg" class="pic">
</div>
<!--上图片 -->
<div class="out_top">
<img src="img/5.jpg" class="pic">
</div>
<!--下图片 -->
<div class="out_bottom">
<img src="img/6.jpg" class="pic">
</div>
<!--小正方体 -->
<span class="in_front">
<img src="img/7.jpg" class="in_pic">
</span>
<span class="in_back">
<img src="img/8.jpg" class="in_pic">
</span>
<span class="in_left">
<img src="img/9.jpg" class="in_pic">
</span>
<span class="in_right">
<img src="img/10.jpg" class="in_pic">
</span>
<span class="in_top">
<img src="img/11.jpg" class="in_pic">
</span>
<span class="in_bottom">
<img src="img/12.jpg" class="in_pic">
</span>
</div>
</div>
</body>
</html>3.Matlab实现
3.1 运行展示
动态视频：
3.2 Matlab代码
%====欢迎关注关注号：电力系统与算法之美
function wlz3d
path='.\meinv\';%文件夹名称
files=dir(fullfile(path,'*.jpg'));
picNum=size(files,1);
%% 遍历路径下每一幅图像
for i=1:picNum
fileName=strcat(path,files(i).name);
img=imread(fileName);
img=imresize(img,[120,120]);
imgSet{i}=img;
end
%% fig axes设置
fig=figure('units','pixels','position',[50 50 600 600],...
'Numbertitle','off','resize','off',...
'name','album3d','menubar','none');
ax=axes('parent',fig,'position',[-0.5 -0.5 2 2],...
'XLim', [-6 6],...
'YLim', [-6 6],...
'ZLim', [-6 6],...
'Visible','on',...
'XTick',[], ...
'YTick',[],...
'Color',[0 0 0],...
'DataAspectRatioMode','manual',...
'CameraPositionMode','manual');
hold(ax,'on')
ax.CameraPosition=[5 5 5];
%% 用于绘制图片的网格
[XMesh,YMesh]=meshgrid(linspace(-1,1,120),linspace(-1,1,120));
ZMesh=ones(120,120);
%% 绘制图片立方体
surfPic(1)=surf(XMesh,YMesh,ZMesh,'CData',imgSet{mod(0,picNum)+1},'EdgeColor','none','FaceColor','interp');
surfPic(2)=surf(XMesh,YMesh(end:-1:1,:),-ZMesh,'CData',imgSet{mod(1,picNum)+1},'EdgeColor','none','FaceColor','interp');
surfPic(3)=surf(ZMesh,XMesh,YMesh(end:-1:1,:),'CData',imgSet{mod(2,picNum)+1},'EdgeColor','none','FaceColor','interp');
surfPic(4)=surf(XMesh,ZMesh,YMesh(end:-1:1,:),'CData',imgSet{mod(3,picNum)+1},'EdgeColor','none','FaceColor','interp');
surfPic(5)=surf(-ZMesh,XMesh,YMesh(end:-1:1,:),'CData',imgSet{mod(4,picNum)+1},'EdgeColor','none','FaceColor','interp');
surfPic(6)=surf(XMesh,-ZMesh,YMesh(end:-1:1,:),'CData',imgSet{mod(5,picNum)+1},'EdgeColor','none','FaceColor','interp');
%% 依靠小立方体数据绘制中等立方体
for i=1:6
surfPicA(i)=surf(surfPic(i).XData.*1.5,surfPic(i).YData.*1.5,surfPic(i).ZData.*1.5,...
'CData',surfPic(i).CData,'EdgeColor','none','FaceColor','interp','FaceAlpha',0.7);
end
%% 用来调整放大比例的矩阵
resizeMat=[2 2 2.5;2 2 2.5;2.5 2 2;
2 2.5 2;2.5 2 2;2 2.5 2];
%% 最大图片绘制
% for i=1:6
% surfPicB(i)=surf(surfPic(i).XData.*resizeMat(i,1),...
% surfPic(i).YData.*resizeMat(i,2),...
% surfPic(i).ZData.*resizeMat(i,3),...
% 'CData',surfPic(i).CData,'EdgeColor',...
% 'none','FaceColor','interp','FaceAlpha',0.7);
% end
lastDis=300;
preDis=300;
set(fig,'WindowButtonMotionFcn',@move2center)
function move2center(~,~)
xy=get(fig,'CurrentPoint');
preDis=sqrt(sum((xy-[300,300]).^2));
end
fps=40;theta=0;
rotateTimer=timer('ExecutionMode', 'FixedRate', 'Period',1/fps, 'TimerFcn', @rotateCube);
start(rotateTimer)
function rotateCube(~,~)
theta=theta+0.02;
ax.CameraPosition=[cos(theta)*5*sqrt(2),sin(theta)*5*sqrt(2),5];
if (~all([preDis lastDis]<150))&&any([preDis lastDis]<150)
for ii=1:6
if preDis<150
surfPicA(ii).XData=surfPic(ii).XData.*resizeMat(ii,1);
surfPicA(ii).YData=surfPic(ii).YData.*resizeMat(ii,2);
surfPicA(ii).ZData=surfPic(ii).ZData.*resizeMat(ii,3);
else
surfPicA(ii).XData=surfPic(ii).XData.*1.5;
surfPicA(ii).YData=surfPic(ii).YData.*1.5;
surfPicA(ii).ZData=surfPic(ii).ZData.*1.5;
end
end
end
lastDis=preDis;
end
% 弃用方案：太卡
% set(fig,'WindowButtonMotionFcn',@move2center)
% function move2center(~,~)
% xy=get(fig,'CurrentPoint');
% dis=sum((xy-[300,300]).^2);
% for ii=1:6
% if dis<200
% surfPicA(ii).XData=surfPic(ii).XData.*resizeMat(ii,1);
% surfPicA(ii).YData=surfPic(ii).YData.*resizeMat(ii,2);
% surfPicA(ii).ZData=surfPic(ii).ZData.*resizeMat(ii,3);
% else
% surfPicA(ii).XData=surfPic(ii).XData;
% surfPicA(ii).YData=surfPic(ii).YData;
% surfPicA(ii).ZData=surfPic(ii).ZData;
% end
% end
%
%
%
% end
end到此这篇关于Python&Matlab实现炫酷的3D旋转图的文章就介绍到这了,更多相关Python Matlab3D旋转图内容请搜索编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程网！
