我有一种方法可以裁剪图像,但它保持比例,有时会给我一个长方形的图像。有没有一种方法可以固定宽度和高度,同时不会使图像偏斜或变暗?即。120px x 120px
?
有关如何修改此方法的任何想法吗?
注意: maxSize设置为120px
。另外,我从原始图像传递宽度和高度。
protected function calculateSize($width, $height) {
if ($width <= $this->maxSize && $height <= $this->maxSize) {
$ratio = 1;
} elseif ($width > $height) {
$ratio = $this->maxSize / $width;
} else {
$ratio = $this->maxSize / $height;
}
$this->newWidth = round($width * $ratio);
$this->newHeight = round($height * $ratio);
}
答案 0 :(得分:1)
假设你总是想要返回方形尺寸,并且升级不是一个选项,那么这样的东西应该有效(除非我遗漏了一些东西):
protected function calculateSize($width, $height) {
if ($height <= $this->maxSize && $width <= $this->maxSize) {
$new_height = $new_width = min(array($height, $width));
}
else {
if ($height > $width) {
$variable = 'width';
}
else {
$variable = 'height';
}
if ($$variable <= $this->maxSize) {
$new_height = $new_width = $$variable;
}
else {
$new_height = $new_width = min(array($this->maxSize, $$variable));
}
}
$this->newWidth = $new_width;
$this->newHeight = $new_height;
}