Question

我目前正在UIBezierPath中绘制UIImage，如下所示：

UIGraphicsBeginImageContextWithOptions(rect.size, NO, 0);
UIBezierPath *polygonPath = [UIBezierPath bezierPath];

CGPoint curPoint = [self originalPoint:[[drawArray objectAtIndex:0]CGPointValue]];

// set the starting point for the lines
[polygonPath moveToPoint:curPoint];

// go through each point in drawArray and add it to polygonPath
for(NSInteger i = 1; i < [drawArray count]; i++) {
    curPoint = [self originalPoint:[[drawArray objectAtIndex:i]CGPointValue]];
    // scale point
    curPoint = CGPointMake(curPoint.x, curPoint.y);

    [polygonPath addLineToPoint:curPoint];
}

[polygonPath closePath];

[polygonPath addClip];

[image drawAtPoint:CGPointZero];

它的效果非常好，但是我希望图像具有“光滑的边缘”，略微透明，因为我将它绘制在另一个图像的顶部...现在边缘非常粗糙。

感谢您的帮助！

Answer 1

当您在图像上绘图时。所以我建议你使用以下代码......

其中YourImage是您正在绘制线条的UIImage。

[[UIColor colorWithPatternImage:YourImage] set];

For More Visit this reference

希望，这会对你有帮助......

使UIBezierPath的外边缘半透明

1 个答案: