在提交时从编码数据中裁剪图像-（File Pond-FilePondPluginFileEncode-imageEditEditor- Doka-Crop-PHP）

Question

使用'FilePondPluginFileEncode'时，使用从隐藏字段传递来的数据裁剪图像时，是否有适当的PHP代码可使用？ （我将Doka用作图像编辑器）https://pqina.nl/doka/?ref=filepond

当选择图像然后编辑裁剪时，以下选项将作为编码元数据从文件池中传递到隐藏字段中。 + base64图片字符串（https://pqina.nl/filepond/docs/patterns/plugins/file-encode/）

{"crop":{
  "center":{"x":0.6019359981,"y":0.5843676986},
  "rotation":0,
  "zoom":1,
  "aspectRatio":0.6567346851,
  "flip":{"horizontal":false,"vertical":false},
  "scaleToFit":true},
  "image":{"width":225,"height":148,"orientation":-1},
  "size":{"upscale":true,"mode":"cover","width":null,"height":null},
  "output":{"type":null,"quality":null,"background":null},
  "filter":null,
  "color":{"contrast":{"value":1,"matrix":[1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0]},"
  exposure":{"value":1,"matrix":[1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0]},"brightness": 
 {"value":0,"matrix":[1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0]},"saturation": 
 {"value":1,"matrix":[1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0]}
 },"markup":[],
  "colorMatrix":[1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0]
}

提交时：这是我写给庄稼的东西。它可以裁剪，但是不能完全裁剪，因为我们从文件池doka图像编辑器中选择了]

<?php
if (isset($file_format['metadata']['crop'])) {
            $im = new \Imagick($uploaded_file->getRealPath());

            $aspectRatio = $file_format['metadata']['crop']['aspectRatio'];
            $crop_center_x = $file_format['metadata']['crop']['center']['x'];//percentage
            $crop_center_y = $file_format['metadata']['crop']['center']['y'];//percentage
            $scale =  $file_format['metadata']['crop']['zoom'];

            //Doka formula for aspectRatio = height/width
            //scale to original size but this crop width and height is slightly larger that what we select
            //this may need some improvement
            $crop_width  = ($im->getImageHeight()/$aspectRatio)/$scale; //width of crop selected
            $crop_height = ($im->getImageWidth()*$aspectRatio )/$scale; //height of crop selected

            //x_of_crop
            $x_center_crop =  $im->getImageWidth() * $crop_center_x; //pixels from left to crop center
            $y_center_crop = $im->getImageHeight() * $crop_center_y; //pixels from top to crop center

            $x_left = $x_center_crop - ($crop_width/2);//left position of crop
            $y_top = $y_center_crop - ($crop_height/2);//top position of crop

            $im->cropImaxge($crop_width,$crop_height,$x_left,$y_top);
            file_put_contents($filePath, $im);
            $uploaded_file = new UploadedFile($filePath, $file_format['name'], null, null, true);
        }
?>
我们是正确执行此操作还是可以使用裁剪后的图像数据来更新base64字符串，所以我们不必在服务器端进行裁剪？ 

任何帮助将不胜感激。

使用'FilePondPluginFileEncode'时，使用从隐藏字段传递来的数据裁剪图像时，是否有适当的PHP代码可使用？ （我将Doka用作图像编辑器）https：// ...

Answer 1

请记住在FilePond实例中使用imageEditEditor: Doka.create({})时将FilePondPluginImageTransform，