wp-includes/class-wp-image-editor-imagick.php:557Resizes current image.
$max_wint|null$max_hint|null$cropbool|arrayoptionalfalse$1string
true|WP_Error public function resize( $max_w, $max_h, $crop = false ) { if ( ( $this->size['width'] === $max_w ) && ( $this->size['height'] === $max_h ) ) { return true; } $dims = image_resize_dimensions( $this->size['width'], $this->size['height'], $max_w, $max_h, $crop ); if ( ! $dims ) { return new WP_Error( 'error_getting_dimensions', __( 'Could not calculate resized image dimensions' ) ); } list( $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h ) = $dims; if ( $crop ) { return $this->crop( $src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h ); } $this->set_quality( null, array( 'width' => $dst_w, 'height' => $dst_h, ) ); // Execute the resize. $thumb_result = $this->thumbnail_image( $dst_w, $dst_h ); if ( is_wp_error( $thumb_result ) ) { return $thumb_result; } return $this->update_size( $dst_w, $dst_h ); }Introduced in 3.5.0. Unchanged from 6.7.7 through 7.1.0.
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src/wp-includes/class-wp-image-editor-imagick.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.