Question

我希望有人可以帮助

我有一个斑马ZQ520，我正在尝试从中打印测试标签实际标签为832点* 400点（104mm * 50mm）下面的脚本可以正常打印-尽管需要将整个图像旋转180以与标签上的标记（白色部分）对齐。当“ UIImage * img1 = [self rotationImage：image byDegree： 90 ]”更改为“ [self rotationImage：image byDegree： 270 ]”时

整个东西损坏或变得奇怪..请帮助找到此代码中的错误 90 prints ok but needs to be rotated 180 degrees

此值为270 print is now squashed to the top and not rotated 如您所见，第二个图像现在也充满了黑色。.我不知道这些数据是从代码中来的。

希望有人有主意

    (BOOL) sendImageToPrinter:(UIImage *)image {

UIImage *img1 = [self rotateImage:image byDegree:90];

if(!self.connectivityViewController.isBluetoothSelected) {
    self.ipAddressText = [self.connectivityViewController.ipDnsTextField text];
    self.portAsStringText = [self.connectivityViewController.portTextField text];
}
[self setZebraPrinter];
BOOL success = NO;

if(self.printer != nil) {
    id<GraphicsUtil, NSObject> graphicsUtil = [self.printer getGraphicsUtil];

    NSError *error = nil;
    if (self.isStoreSelected) {
    success = [graphicsUtil storeImage:self.pathOnPrinterText withImage:[img1 CGImage] withWidth:831 andWithHeight:400 error:&error];
    } else {
        success = [graphicsUtil printImage:[img1 CGImage] atX:0 atY:0 withWidth:831 withHeight:400 andIsInsideFormat:NO error:&error];
    }
}
return success;

}

（UIImage ）rotateImage：（UIImage ）图像按度：（CGFloat）度 { UIView * rotatedViewBox = [[UIView分配] initWithFrame：CGRectMake（0,0，image.size.width，image.size.height）]; CGAffineTransform t = CGAffineTransformMakeRotation（DegreesToRadians（degrees））; rotationViewBox.transform = t; CGSize rotationSize = rotationViewBox.frame.size;

UIGraphicsBeginImageContext（rotatedSize）; CGContextRef位图= UIGraphicsGetCurrentContext（）;

CGContextTranslateCTM（位图，旋转尺寸。宽度，旋转尺寸。高度）;

CGContextRotateCTM（位图，DegreesToRadians（degrees））;

CGContextScaleCTM（位图，1.0，-1.0）; CGContextDrawImage（bitmap，CGRectMake（-image.size.width，-image.size.height，image.size.width，image.size.height），[image CGImage]）;

UIImage * newImage = UIGraphicsGetImageFromCurrentImageContext（）; UIGraphicsEndImageContext（）; 返回newImage;

}

使用Zebra ZQ520进行打印“导致旋转问题”

0 个答案: