{"id":3183,"date":"2021-06-12T16:44:21","date_gmt":"2021-06-12T08:44:21","guid":{"rendered":"http:\/\/123.57.164.21\/?p=3183"},"modified":"2021-06-12T16:44:21","modified_gmt":"2021-06-12T08:44:21","slug":"ios%e5%bd%a2%e5%8f%98%e4%b9%8bcgaffinetransform","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=3183","title":{"rendered":"iOS\u5f62\u53d8\u4e4bCGAffineTransform"},"content":{"rendered":"\n
\"\"<\/figure><\/div>\n\n\n\n
CGAffineTransform\u4ecb\u7ecd<\/h5>\n\n\n\n
\u6982\u8ff0<\/h5>\n\n\n\n

CGAffineTransform\u662f\u4e00\u4e2a\u7528\u4e8e\u5904\u7406\u5f62\u53d8\u7684\u7c7b,\u5176\u53ef\u4ee5\u6539\u53d8\u63a7\u4ef6\u7684\u5e73\u79fb\u3001\u7f29\u653e\u3001\u65cb\u8f6c\u7b49,\u5176\u5750\u6807\u7cfb\u7edf\u91c7\u7528\u7684\u662f\u4e8c\u7ef4\u5750\u6807\u7cfb,\u5373\u5411\u53f3\u4e3ax\u8f74\u6b63\u65b9\u5411,\u5411\u4e0b\u4e3ay\u8f74\u6b63\u65b9\u5411.<\/p>\n\n\n\n

\u5728UIView\u4e2d\u6709\u4e00\u4e2atransform\u5c5e\u6027\u4fbf\u662f\u4e13\u95e8\u7528\u6765\u63a7\u5236\u5f62\u53d8\u7684,\u5176\u4f7f\u7528\u65b9\u6cd5\u5982\u4e0b<\/p>\n\n\n\n

\u6837\u4f8b\u7d20\u6750<\/h5>\n\n\n\n

\u5728\u4ecb\u7ecdUIView\u5f62\u53d8\u7684\u8fc7\u7a0b\u4e2d,\u6211\u4eec\u4f1a\u4f7f\u7528\u4e00\u4e2aUIImageView\u56fe\u7247\u4e3a\u4f8b,\u5bf9\u5404\u52a8\u753b\u6548\u679c\u8fdb\u884c\u6f14\u793a<\/p>\n\n\n\n

@property (nonatomic, strong) UIImageView *demoImageView;\n\n- (void)viewDidLoad\n{\n    [super viewDidLoad];\n    \n    self.demoImageView = [[UIImageView alloc] initWithFrame:CGRectMake(20, 20, [[UIScreen mainScreen] bounds].size.width-40, [[UIScreen mainScreen] bounds].size.height-40)];\n    self.demoImageView.image = [UIImage imageNamed:@\"demo\"];\n    [self.view addSubview:self.demoImageView];\n}<\/pre>\n\n\n\n
\u65b9\u6cd5\u4ecb\u7ecd<\/h5>\n\n\n\n
  • CGAffineTransformMakeTranslation\u5b9e\u73b0\u4ee5\u521d\u59cb\u4f4d\u7f6e\u4e3a\u57fa\u51c6,\u5728x\u8f74\u65b9\u5411\u4e0a\u5e73\u79fbx\u5355\u4f4d,\u5728y\u8f74\u65b9\u5411\u4e0a\u5e73\u79fby\u5355\u4f4d<\/li><\/ul>\n\n\n\n
    \/\/ \u683c\u5f0f\nCGAffineTransformMakeTranslation(CGFloat tx, CGFloat ty)\n\/\/ \u6837\u4f8b\nself.demoImageView.transform = CGAffineTransformMakeTranslation(100, 100);<\/pre>\n\n\n\n
    \u6ce8: \u5f53tx\u4e3a\u6b63\u503c\u65f6,\u4f1a\u5411x\u8f74\u6b63\u65b9\u5411\u5e73\u79fb,\u53cd\u4e4b,\u5219\u5411x\u8f74\u8d1f\u65b9\u5411\u5e73\u79fb;\u5f53ty\u4e3a\u6b63\u503c\u65f6,\u4f1a\u5411y\u8f74\u6b63\u65b9\u5411\u5e73\u79fb,\u53cd\u4e4b,\u5219\u5411y\u8f74\u8d1f\u65b9\u5411\u5e73\u79fb<\/p><\/blockquote>\n\n\n\n
    • CGAffineTransformMakeScale\u5b9e\u73b0\u4ee5\u521d\u59cb\u4f4d\u7f6e\u4e3a\u57fa\u51c6,\u5728x\u8f74\u65b9\u5411\u4e0a\u7f29\u653ex\u500d,\u5728y\u8f74\u65b9\u5411\u4e0a\u7f29\u653ey\u500d<\/li><\/ul>\n\n\n\n
      \/\/ \u683c\u5f0f\nCGAffineTransformMakeScale(CGFloat sx, CGFloat sy)\n\/\/ \u6837\u4f8b\nself.demoImageView.transform = CGAffineTransformMakeScale(2, 0.5);<\/pre>\n\n\n\n
      \u6ce8: \u5f53sx\u4e3a\u6b63\u503c\u65f6,\u4f1a\u5728x\u8f74\u65b9\u5411\u4e0a\u7f29\u653ex\u500d,\u53cd\u4e4b,\u5219\u5728\u7f29\u653e\u7684\u57fa\u7840\u4e0a\u6cbf\u7740\u7ad6\u76f4\u7ebf\u7ffb\u8f6c;\u5f53sy\u4e3a\u6b63\u503c\u65f6,\u4f1a\u5728y\u8f74\u65b9\u5411\u4e0a\u7f29\u653ey\u500d,\u53cd\u4e4b,\u5219\u5728\u7f29\u653e\u7684\u57fa\u7840\u4e0a\u6cbf\u7740\u6c34\u5e73\u7ebf\u7ffb\u8f6c<\/p><\/blockquote>\n\n\n\n
      • CGAffineTransformMakeRotation\u5b9e\u73b0\u4ee5\u521d\u59cb\u4f4d\u7f6e\u4e3a\u57fa\u51c6,\u5c06\u5750\u6807\u7cfb\u7edf\u9006<\/code>\u65f6\u9488\u65cb\u8f6cangle\u5f27\u5ea6(\u5f27\u5ea6=\u03c0\/180\u00d7\u89d2\u5ea6,M_PI\u5f27\u5ea6\u4ee3\u8868180\u89d2\u5ea6)<\/li><\/ul>\n\n\n\n
        \/\/ \u683c\u5f0f\nCGAffineTransformMakeRotation(CGFloat angle)\n\/\/ \u6837\u4f8b\nself.demoImageView.transform = CGAffineTransformMakeRotation(M_PI*0.5);<\/pre>\n\n\n\n
        \u6ce81: \u5f53angle\u4e3a\u6b63\u503c\u65f6,\u9006<\/code>\u65f6\u9488\u65cb\u8f6c\u5750\u6807\u7cfb\u7edf,\u53cd\u4e4b\u987a<\/code>\u65f6\u9488\u65cb\u8f6c\u5750\u6807\u7cfb\u7edf<\/p><\/blockquote>\n\n\n\n
        \u6ce82: \u9006<\/code>\u65f6\u9488\u65cb\u8f6c\u5750\u6807\u7cfb\u7edf\u7684\u8868\u73b0\u5f62\u5f0f\u4e3a\u5bf9\u63a7\u4ef6\u8fdb\u884c\u987a<\/code>\u65f6\u9488\u65cb\u8f6c<\/p><\/blockquote>\n\n\n\n
        • CGAffineTransformTranslate\u5b9e\u73b0\u4ee5\u4e00\u4e2a\u5df2\u7ecf\u5b58\u5728\u7684\u5f62\u53d8\u4e3a\u57fa\u51c6,\u5728x\u8f74\u65b9\u5411\u4e0a\u5e73\u79fbx\u5355\u4f4d,\u5728y\u8f74\u65b9\u5411\u4e0a\u5e73\u79fby\u5355\u4f4d<\/li><\/ul>\n\n\n\n
          \/\/ \u683c\u5f0f\nCGAffineTransformTranslate(CGAffineTransform t, CGFloat tx, CGFloat ty)\n\/\/ \u6837\u4f8b\nCGAffineTransform transform = CGAffineTransformMakeTranslation(50, 50);\nself.demoImageView.transform = CGAffineTransformTranslate(transform, 50, 50);<\/pre>\n\n\n\n
          • CGAffineTransformScale\u5b9e\u73b0\u4ee5\u4e00\u4e2a\u5df2\u7ecf\u5b58\u5728\u7684\u5f62\u53d8\u4e3a\u57fa\u51c6,\u5728x\u8f74\u65b9\u5411\u4e0a\u7f29\u653ex\u500d,\u5728y\u8f74\u65b9\u5411\u4e0a\u7f29\u653ey\u500d<\/li><\/ul>\n\n\n\n
            \/\/ \u683c\u5f0f\nCGAffineTransformScale(CGAffineTransform t, CGFloat sx, CGFloat sy)\n\/\/ \u6837\u4f8b\nCGAffineTransform transform = CGAffineTransformMakeScale(2, 0.5);\nself.demoImageView.transform = CGAffineTransformScale(transform, 2, 1);\n<\/pre>\n\n\n\n
            • CGAffineTransformRotate\u5b9e\u73b0\u4ee5\u4e00\u4e2a\u5df2\u7ecf\u5b58\u5728\u7684\u5f62\u53d8\u4e3a\u57fa\u51c6,\u5c06\u5750\u6807\u7cfb\u7edf\u9006<\/code>\u65f6\u9488\u65cb\u8f6cangle\u5f27\u5ea6(\u5f27\u5ea6=\u03c0\/180\u00d7\u89d2\u5ea6,M_PI\u5f27\u5ea6\u4ee3\u8868180\u89d2\u5ea6)<\/li><\/ul>\n\n\n\n
              \/\/ \u683c\u5f0f\nCGAffineTransformRotate(CGAffineTransform t, CGFloat angle)\n\/\/ \u6837\u4f8b\nCGAffineTransform transform = CGAffineTransformMakeRotation(M_PI*0.25);\nself.demoImageView.transform = CGAffineTransformRotate(transform, M_PI*0.25);\n<\/pre>\n\n\n\n
              • \u7279\u6b8a\u5730,transform\u5c5e\u6027\u9ed8\u8ba4\u503c\u4e3aCGAffineTransformIdentity,\u53ef\u4ee5\u5728\u5f62\u53d8\u4e4b\u540e\u8bbe\u7f6e\u8be5\u503c\u4ee5\u8fd8\u539f\u5230\u6700\u521d\u72b6\u6001<\/li><\/ul>\n\n\n\n
                \/\/ \u6837\u4f8b\nself.demoImageView.transform = CGAffineTransformIdentity;\n<\/pre>\n\n\n\n
                CGAffineTransform\u539f\u7406<\/h5>\n\n\n\n
                CGAffineTransform\u5f62\u53d8\u662f\u901a\u8fc7”\u4eff\u5c04\u53d8\u6362\u77e9\u9635”\u6765\u63a7\u5236\u7684,\u5176\u4e2d\u5e73\u79fb\u662f\u77e9\u9635\u76f8\u52a0,\u65cb\u8f6c\u4e0e\u7f29\u653e\u5219\u662f\u77e9\u9635\u76f8\u4e58,\u4e3a\u4e86\u5408\u5e76\u77e9\u9635\u8fd0\u7b97\u4e2d\u7684\u52a0\u6cd5\u548c\u4e58\u6cd5,\u5f15\u5165\u4e86\u9f50\u6b21\u5750\u6807\u7684\u6982\u5ff5,\u5b83\u63d0\u4f9b\u4e86\u7528\u77e9\u9635\u8fd0\u7b97\u628a\u4e8c\u7ef4\u3001\u4e09\u7ef4\u751a\u81f3\u9ad8\u7ef4\u7a7a\u95f4\u4e2d\u7684\u4e00\u4e2a\u70b9\u96c6\u4ece\u4e00\u4e2a\u5750\u6807\u7cfb\u53d8\u6362\u5230\u53e6\u4e00\u4e2a\u5750\u6807\u7cfb\u7684\u6709\u6548\u65b9\u6cd5.CGAffineTransform\u5f62\u53d8\u5c31\u662f\u628a\u4e8c\u7ef4\u5f62\u53d8\u4f7f\u7528\u4e00\u4e2a\u4e09\u7ef4\u77e9\u9635\u6765\u8868\u793a,\u5176\u4e2d\u7b2c\u4e09\u5217\u603b\u662f(0,0,1),\u5f62\u53d8\u901a\u8fc7\u524d\u4e24\u5217\u6765\u63a7\u5236,\u7cfb\u7edf\u63d0\u4f9b\u4e86CGAffineTransformMake\u7ed3\u6784\u4f53\u6765\u63a7\u5236\u5f62\u53d8<\/em><\/p>\n\n\n\n
                \/\/ \u683c\u5f0f\nCGAffineTransformMake(CGFloat a, CGFloat b, CGFloat c, CGFloat d, CGFloat tx, CGFloat ty)\n<\/pre>\n\n\n\n
                \"\"<\/figure><\/div>\n\n\n\n
                • \u5e73\u79fbCGAffineTransformMakeTranslation\u539f\u7406<\/li><\/ul>\n\n\n\n
                  self.demoImageView.transform = CGAffineTransformMakeTranslation(100, 100);\nself.demoImageView.transform = CGAffineTransformMake(1, 0, 0, 1, 100, 100);\n<\/pre>\n\n\n\n
                  • \u7f29\u653eCGAffineTransformMakeScale\u539f\u7406<\/li><\/ul>\n\n\n\n
                    self.demoImageView.transform = CGAffineTransformMakeScale(2, 0.5);\nself.demoImageView.transform = CGAffineTransformMake(2, 0, 0, 0.5, 0, 0);\n<\/pre>\n\n\n\n
                    • \u65cb\u8f6cCGAffineTransformMakeRotation\u539f\u7406<\/li><\/ul>\n\n\n\n
                      self.demoImageView.transform = CGAffineTransformMakeRotation(M_PI*0.5);\nself.demoImageView.transform = CGAffineTransformMake(cos(M_PI * 0.5), sin(M_PI * 0.5), -sin(M_PI * 0.5), cos(M_PI * 0.5), 0, 0);<\/pre>\n\n\n\n
                      • \u521d\u59cb\u72b6\u6001CGAffineTransformIdentity\u539f\u7406<\/li><\/ul>\n\n\n\n
                        self.demoImageView.transform = CGAffineTransformIdentity;\nself.demoImageView.transform = CGAffineTransformMake(1, 0, 0, 1, 0, 0);\n<\/pre>\n\n\n\n
                        <\/p>\n","protected":false},"excerpt":{"rendered":"
                        CGAffineTransform\u4ecb\u7ecd \u6982\u8ff0 CGAffineTransform\u662f\u4e00\u4e2a\u7528\u4e8e\u5904\u7406\u5f62\u53d8\u7684\u7c7b,\u5176\u53ef\u4ee5 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,8],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/3183"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3183"}],"version-history":[{"count":7,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/3183\/revisions"}],"predecessor-version":[{"id":3192,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/3183\/revisions\/3192"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3183"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}