我需要使用一张图像创建一个框架图像。
例如：
用户将从后端上传一张图片：
现在我需要根据前端用户的要求在前端创建一个框架（用户将选择框架的高度和宽度，然后他将选择这个图像块），如下所示：
我没有办法做到这一点，我曾尝试通过 css 和 html canvas 做到这一点，但没有运气。
有人可以建议我如何通过使用 PHP 或 CSS 或 HTML 或 JavaScript 或任何方式来实现这一点。
您可以在此处查看工作示例，这实际上是我需要做的。
【问题讨论】：
GD 或使用 HTML5 画布，如果你想操作图像客户端
标签： javascript php html css html5-canvas
无论是由您手动完成，还是通过 GD 库以某种方式在运行中完成，您绝对至少需要拍摄您所收到的图像...
...然后裁剪并收紧它，使其像这样干净（边缘周围没有空白区域并且去除了凹口/切口）：
然后你就有了一个你可以实际使用的图像。
注意：我不是在这里做 javascript。它将用于动态设置元素大小，如 html 中所示。
通常我会使用大量的 :before 和 ':after' 伪元素来保持 html 不那么混乱，但是由于您需要动态调整框架大小，所以我们需要使用一些嵌套的 div 元素来为对某些 div 元素（如果 javascript 可以访问这些元素或如果不需要动态调整大小，其中一些仍然是伪元素）至关重要的宽度和高度设置动态样式。
注意：到目前为止，我只在 Chrome 和 Firefox 中对此进行了测试。真正的旧浏览器肯定会惨遭失败。
/* implementation of framing */
.frameit {
/* width and height must be set dynamically by javascript see html */
position: relative;
box-sizing: border-box;
overflow: hidden;
padding: 20px; /* at least border size */
}
.frameit:before,
.frameit:after,
.frameit .sides > div,
.frameit .corner > div {
position: absolute;
background-image: url(http://i.stack.imgur.com/vAgqj.jpg);
background-size: 100% 20px; /* 100% and border size */
height: 20px; /* equal to border width of frameit div */
}
.frameit:before {
content: '';
top: 0;
left: 0;
right: 0;
}
.frameit:after {
content: '';
bottom: 0;
left: 0;
right: 0;
}
.frameit .sides {
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
z-index: 1;
}
.frameit .sides > div {
/* width must be set dynamically by javascript see html */
height: 20px;
}
.frameit .sides > div:first-child {
top: 0;
left: 20px; /* border width */
transform-origin: 0 0;
transform: rotate(90deg);
}
.frameit .sides > div:last-child {
bottom: 0;
right: 20px; /* border width */
transform-origin: 100% 100%;
transform: rotate(90deg);
}
.frameit .sides ~ .corner { /* all corners */
position: absolute;
z-index: 2;
width: 29px; /* square root of ((border-width squared) x 2) round up */
height: 29px; /* match width */
overflow: hidden;
}
.frameit .TL {
top: 0;
left: 0;
transform-origin: 0 0;
transform: rotate(-45deg);
}
.frameit .TL > div {
top: inherit;
left: inherit;
transform-origin: inherit;
transform: rotate(45deg);
}
.frameit .TR {
top: 0;
right: 0;
transform-origin: 100% 0;
transform: rotate(45deg);
}
.frameit .TR > div {
top: 0;
right: 0;
transform-origin: 100% 0;
transform: rotate(-45deg);
}
.frameit .BR {
bottom: 0;
right: 0;
transform-origin: 100% 100%;
transform: rotate(-45deg);
}
.frameit .BR > div {
bottom: inherit;
right: inherit;
transform-origin: inherit;
transform: rotate(45deg);
}
.frameit .BL {
bottom: 0;
left: 0;
transform-origin: 0 100%;
transform: rotate(45deg);
}
.frameit .BL > div {
bottom: inherit;
left: inherit;
transform-origin: inherit;
transform: rotate(-45deg);
}
/* Optional shading to help define the joint */
.frameit .sides > div:first-child:before,
.frameit .sides > div:last-child:before {
content: '';
position: absolute;
top: 0;
right: 0;
left: 0;
bottom: 0;
background-color: rgba(0,0,0,.07);
}<div class="frameit" style="width: 200px; height: 300px;">
<!-- top and bottom and overall container
width and height assumed to be set by javacript by user
-->
<div class="sides">
<!-- left and right sides
widths of the children are equal to HEIGHT of container and are
assumed to be set by javacript by user
-->
<div style="width: 300px;"></div>
<div style="width: 300px;"></div>
</div>
<div class="TL corner"><!-- top left bevel --><div style="width: 200px;"></div></div>
<div class="TR corner"><!-- top right bevel --><div style="width: 200px;"></div></div>
<div class="BR corner"><!-- bottom right bevel --><div style="width: 200px;"></div></div>
<div class="BL corner"><!-- bottom left bevel --><div style="width: 200px;"></div></div>
</div>【讨论】：
您在答案中发布的示例图像可能不适合用于生成框架。您应该为框架的水平和垂直侧获得 2 个不同的图像。斜面和边缘也可以是可以相应定位的不同图像。
.frame {
position: relative;
width: 500px;
/*width of the frame*/
}
.horizontal-side {
/*use a horizontal background that can repeat properly*/
background: url(http://i.stack.imgur.com/vAgqj.jpg) repeat;
}
.horizontal-side {
width: 500px;
/*width of the frame*/
height: 20px;
}
.vertical-side {
/*use a vertical background that can repeat properly*/
background: url(http://i.stack.imgur.com/vAgqj.jpg) repeat;
width: 20px;
height: 400px;
/*height of the frame*/
}
.vertical-side.right {
position: absolute;
right: 0;
top: 20px;
/*same as the horizontal side's hight*/
}<div class="frame">
<div class="horizontal-side top">
</div>
<div class="vertical-side left">
</div>
<div class="vertical-side right">
</div>
<div class="horizontal-side bottom">
</div>
</div>更新了来自@ScottS 回答的清理图像
【讨论】：
我已经尝试了很多通过 php 使用单个图像创建框架，但在 php 中没有找到任何解决方案。
在两个答案（Lucky Soni 的答案和 ScottS 的答案）的帮助下，我创建了一个脚本来完全满足我的要求（非常感谢两者）。
First I have created 4 images from single image while uploading:
$file = Input::file('image');
$destinationPath = 'test/';
$filename = time() . $file->getClientOriginalName();
$extension = $file->getClientOriginalExtension();
$upload_success = $file->move($destinationPath, $filename);
// This will create image for upper horizontal part
$im = new imagick(public_path().'/test/'.$filename);
$im->setImageFormat( "jpg" );
$topUperName = 'hr-uper-'.$filename;
$img_name = public_path().'/20*20/'.$topUperName;
$im->resizeImage(20,20,Imagick::FILTER_LANCZOS,1);
$im->writeImage($img_name);
// This will create image for vertical right part
$vrtRght = 'vrt-right-'.$filename;
$img_name = public_path().'/20*20/'.$vrtRght;
$im->rotateimage('', '90');
$im->writeImage($img_name);
// This will create image for bottom horizontal part
$topUperBtm = 'hr-btm-'.$filename;
$img_name = public_path().'/20*20/'.$topUperBtm;
$im->rotateimage('', '90');
$im->writeImage($img_name);
// This will create image for vertical left part
$vrtlft = 'vrt-left-'.$filename;
$img_name = public_path().'/20*20/'.$vrtlft;
$im->rotateimage('', '90');
$im->writeImage($img_name);
$im->clear();
$im->destroy();
unlink(public_path() . '/' . $filename);
HTML layout:
<div class="frame">
<div class="horizontal-side top"></div>
<div class="vertical-side left"></div>
<div class="vertical-side right"></div>
<div class="horizontal-side bottom"></div>
<div class="right-top-corner corner-holder">
<img class="right-top corner" src="<?php echo url(); ?>/20*20/hr-uper-1448949720a.jpg">
</div>
<div class="right-btm-corner corner-holder">
<img class="right-btm" corner src="<?php echo url(); ?>/20*20/hr-btm-1448949720a.jpg">
</div>
<div class="left-top-corner corner-holder">
<img class="left-top corner" src="<?php echo url(); ?>/20*20/hr-uper-1448949720a.jpg">
</div>
<div class="left-btm-corner corner-holder">
<img class="left-btm corner" src="<?php echo url(); ?>/20*20/hr-btm-1448949720a.jpg">
</div>
</div>
Styling:
.frame {
position: relative;
width: 500px; /* dynamic*/
height: 500px; /* dynamic*/
}
.horizontal-side {
width: 100%;
height: 100px; /* height of image*/
position: absolute;
}
.horizontal-side.top {
background: url('<?php echo url(); ?>/20*20/hr-uper-1448949720a.jpg') repeat !important;
}
.horizontal-side.bottom {
background: url('<?php echo url(); ?>/20*20/hr-btm-1448949720a.jpg') repeat !important;
}
.horizontal-side.top {
top: 0 !important;
}
.horizontal-side.bottom {
bottom: 0 !important;
}
.vertical-side {
width: 100px !important; /* width of image*/
height: 100% !important;
z-index: 9 !important;
position: absolute !important;
}
.vertical-side.left {
left: 0 !important;
background: url('<?php echo url(); ?>/20*20/vrt-left-1448949720a.jpg') repeat !important;
}
.vertical-side.right {
right: 0;
background: url('<?php echo url(); ?>/20*20/vrt-right-1448949720a.jpg') repeat !important;
}
.corner-holder {
position: absolute !important;
z-index: 9 !important;
}
.right-top-corner{
right: 0px !important;
}
.right-btm-corner {
bottom: 0 !important;
}
.left-top-corner{
left: 0 !important;
}
.left-btm-corner{
bottom: 0 !important;
left: 0 !important;
}
.corner {
height: 100px !important; /* corner height (size of image)*/
width: 100px !important; /* corner width (size of image)*/
}
.right-top {
clip: polygon(100% 0, 0% 100%, 0 0) !important;
-webkit-clip-path: polygon(100% 0, 0% 100%, 0 0) !important;
-moz-clip-path: polygon(100% 0, 0% 100%, 0 0) !important;
-ms-clip-path: polygon(100% 0, 0% 100%, 0 0) !important;
-o-clip-path: polygon(100% 0, 0% 100%, 0 0) !important;
clip-path: polygon(100% 0, 0% 100%, 0 0) !important;
}
.right-btm{
clip: polygon(0 100%, 0 0, 100% 100%) !important;
-webkit-clip-path: polygon(0 100%, 0 0, 100% 100%) !important;
-moz-clip-path: polygon(0 100%, 0 0, 100% 100%) !important;
-ms-clip-path: polygon(0 100%, 0 0, 100% 100%) !important;
-o-clip-path: polygon(0 100%, 0 0, 100% 100%) !important;
clip-path: polygon(0 100%, 0 0, 100% 100%) !important;
}
.left-top{
clip: polygon(100% 0, 0 0, 100% 100%) !important;
-webkit-clip-path: polygon(100% 0, 0 0, 100% 100%) !important;
-moz-clip-path: polygon(100% 0, 0 0, 100% 100%) !important;
-ms-clip-path: polygon(100% 0, 0 0, 100% 100%) !important;
-o-clip-path: polygon(100% 0, 0 0, 100% 100%) !important;
clip-path: polygon(100% 0, 0 0, 100% 100%) !important;
}
.left-btm{
clip: polygon(100% 0, 0 100%, 100% 100%) !important;
-webkit-clip-path: polygon(100% 0, 0 100%, 100% 100%) !important;
-moz-clip-path: polygon(100% 0, 0 100%, 100% 100%) !important;
-ms-clip-path: polygon(100% 0, 0 100%, 100% 100%) !important;
-o-clip-path: polygon(100% 0, 0 100%, 100% 100%) !important;
clip-path: polygon(100% 0, 0 100%, 100% 100%) !important;
}
现在我可以从任何类型的图像创建合适的框架
【讨论】：
<?php
header('Content-type: image/png');
$png_image = imagecreate(300, 300);
$grey = imagecolorallocate($png_image, 229, 229, 229);
$green = imagecolorallocate($png_image, 128, 204, 204);
imagefilltoborder($png_image, 0, 0, $grey, $grey);
imagefilledrectangle ($png_image, 20, 20, 80, 80, $green); // SQUARE
imagefilledrectangle ($png_image, 100, 20, 280, 80, $green); // RECTANGLE
imagefilledellipse ($png_image, 50, 150, 75, 75, $green); // CIRCLE
imagefilledellipse ($png_image, 200, 150, 150, 75, $green); // ELLIPSE
$poly_points = array(150, 200, 100, 280, 200, 280);
imagefilledpolygon ($png_image, $poly_points, 3, $green); // POLYGON
imagepng($png_image);
imagedestroy($png_image);
试试看
sn-p 来自：http://www.phpforkids.com/php/php-gd-library-drawing-shapes.php
【讨论】：
我看过你的解决方案，这已经足够好了。但是我注意到一些事情，当我尝试增加高度和宽度时，它没有给出适当的结果。
我尝试通过使用不同尺寸的图片来解决这个问题。
$file = Input::file('image');
$destinationPath = 'test/';
$filename = time() . $file->getClientOriginalName();
$extension = $file->getClientOriginalExtension();
$upload_success = $file->move($destinationPath, $filename);
// This will create image for upper horizontal part
$im = new imagick(public_path().'/test/'.$filename);
$im->setImageFormat( "jpg" );
/** Here I have created 4 side images of 20*20 **/
$topUperName = 'hr-uper-'.$filename;
$img_name = public_path().'/20*20/'.$topUperName;
$im->resizeImage(20,20,Imagick::FILTER_LANCZOS,1);
$im->writeImage($img_name);
// This will create image for vertical right part
$vrtRght = 'vrt-right-'.$filename;
$img_name = public_path().'/20*20/'.$vrtRght;
$im->rotateimage('', '90');
$im->writeImage($img_name);
// This will create image for bottom horizontal part
$topUperBtm = 'hr-btm-'.$filename;
$img_name = public_path().'/20*20/'.$topUperBtm;
$im->rotateimage('', '90');
$im->writeImage($img_name);
// This will create image for vertical left part
$vrtlft = 'vrt-left-'.$filename;
$img_name = public_path().'/20*20/'.$vrtlft;
$im->rotateimage('', '90');
$im->writeImage($img_name);
$im->clear();
$im->destroy();
/** Here I have created 4 side images of 30*30 **/
// This will create image for upper horizontal part
$im2 = new imagick(public_path().'/test/'.$filename);
$im2->setImageFormat( "jpg" );
$topUperName = 'hr-uper-'.$filename;
$img_name = public_path().'/30*30/'.$topUperName;
$im2->resizeImage(30,30,Imagick::FILTER_LANCZOS,1);
$im2->writeImage($img_name);
// This will create image for vertical right part
$vrtRght = 'vrt-right-'.$filename;
$img_name = public_path().'/30*30/'.$vrtRght;
$im2->rotateimage('', '90');
$im2->writeImage($img_name);
// This will create image for bottom horizontal part
$topUperBtm = 'hr-btm-'.$filename;
$img_name = public_path().'/30*30/'.$topUperBtm;
$im2->rotateimage('', '90');
$im2->writeImage($img_name);
// This will create image for vertical left part
$vrtlft = 'vrt-left-'.$filename;
$img_name = public_path().'/30*30/'.$vrtlft;
$im2->rotateimage('', '90');
$im2->writeImage($img_name);
$im2->clear();
$im2->destroy();
/** Here I have created 4 side images of 40*40 **/
// This will create image for upper horizontal part
$im3 = new imagick(public_path().'/test/'.$filename);
$im3->setImageFormat( "jpg" );
$topUperName = 'hr-uper-'.$filename;
$img_name = public_path().'/40*40/'.$topUperName;
$im3->resizeImage(40,40,Imagick::FILTER_LANCZOS,1);
$im3->writeImage($img_name);
// This will create image for vertical right part
$vrtRght = 'vrt-right-'.$filename;
$img_name = public_path().'/40*40/'.$vrtRght;
$im3->rotateimage('', '90');
$im3->writeImage($img_name);
// This will create image for bottom horizontal part
$topUperBtm = 'hr-btm-'.$filename;
$img_name = public_path().'/40*40/'.$topUperBtm;
$im3->rotateimage('', '90');
$im3->writeImage($img_name);
// This will create image for vertical left part
$vrtlft = 'vrt-left-'.$filename;
$img_name = public_path().'/40*40/'.$vrtlft;
$im3->rotateimage('', '90');
$im3->writeImage($img_name);
$im3->clear();
$im3->destroy();
/** Here I have created 4 side images of 50*50 **/
// This will create image for upper horizontal part
$im4 = new imagick(public_path().'/test/'.$filename);
$im4->setImageFormat( "jpg" );
$topUperName = 'hr-uper-'.$filename;
$img_name = public_path().'/50*50/'.$topUperName;
$im4->resizeImage(50,50,Imagick::FILTER_LANCZOS,1);
$im4->writeImage($img_name);
// This will create image for vertical right part
$vrtRght = 'vrt-right-'.$filename;
$img_name = public_path().'/50*50/'.$vrtRght;
$im4->rotateimage('', '90');
$im4->writeImage($img_name);
// This will create image for bottom horizontal part
$topUperBtm = 'hr-btm-'.$filename;
$img_name = public_path().'/50*50/'.$topUperBtm;
$im4->rotateimage('', '90');
$im4->writeImage($img_name);
// This will create image for vertical left part
$vrtlft = 'vrt-left-'.$filename;
$img_name = public_path().'/50*50/'.$vrtlft;
$im4->rotateimage('', '90');
$im4->writeImage($img_name);
$im4->clear();
$im4->destroy();
unlink(public_path() . '/' . $filename);
我已将图像的那部分裁剪为 4 种尺寸，以便我们可以在创建不同比例的框架时使用这些尺寸。
For example if I am going to create a frame 1000*200, then it was breaking the css, because you were using a image of only 20*20 thick image in all sizes of frame.
现在你只需要为所有尺寸的图片设置比例，例如：
//you will get this from your ajax call
$width = $_GET['width'];
$width = $_GET['height'];
if($width <= 200){
$frameImage = 'path-of-your-20*20-image';
}
if($width > 200 && $width <= 500){
$frameImage = 'path-of-your-30*30-image';
}
if($width > 500 && $width <= 700){
$frameImage = 'path-of-your-40*40-image';
}
if($width > 700){
$frameImage = 'path-of-your-50*50-image';
}
// you can set these variable as per your requirement. And then use this image path to create the html of your frame. If you need a big range of your frame then you can also crop and save image in more sizes while uploading.
希望这对你有用
【讨论】：