我使用此代码卒中NSBezierPath具有广泛,虚线,黑线。
( c
和strForBezier
定义别的地方)
NSGlyph glyph;
for(n = 0; n < len; n++) {
glyph = [font glyphWithName: [strForBezier substringWithRange:NSMakeRange(n, 1)]];
[path appendBezierPathWithGlyph: glyph inFont: font];
}
CGFloat pattern2[4]; pattern2[0]=5*c; pattern2[1]=2*c; pattern2[2]=2*c; pattern2[3]=2*c;
[path setLineDash:pattern2 count:4 phase:0];
[path setLineWidth:c];
[path stroke];
[[NSColor blueColor] set ];
[path fill];
我怎样才能得到黑NSBezierPath? 我正在做的假设,即NSBezierPath是建立并填充到中风初始曲线。
您可以创建潇洒和抚摸的现存路径,但这需要使用CGPathRef
而不是NSBezierPath
。
CGMutablePathRef path0 = CGPathCreateMutable();
CGAffineTransform transform = CGAffineTransformMakeTranslation(20, 20);
// initial position is {20, 20}
CGGlyph glyph;
for(n = 0; n < len; n++)
{
glyph = [font glyphWithName: [strForBezier substringWithRange:NSMakeRange(n, 1)]];
CGPathRef glyphPath = CTFontCreatePathForGlyph((__bridge CTFontRef) font, glyph, NULL);
CGPathAddPath(path0, &transform, glyphPath);
CGPathRelease(glyphPath);
// append the glyph advance to the transform
CGSize advance;
CTFontGetAdvancesForGlyphs((__bridge CTFontRef) font, kCTFontDefaultOrientation, &glyph, &advance, 1);
transform.tx += advance.width;
transform.ty += advance.height;
}
CGFloat pattern2[4]; pattern2[0]=5*c; pattern2[1]=2*c; pattern2[2]=2*c; pattern2[3]=2*c;
CGPathRef path1 = CGPathCreateCopyByDashingPath(path0, NULL, 0, pattern2, 4);
CGPathRef path2 = CGPathCreateCopyByStrokingPath(path1, NULL, c, kCGLineCapButt, kCGLineJoinMiter, CGFLOAT_MAX);
CGContextRef context = [NSGraphicsContext currentContext].graphicsPort;
CGContextAddPath(context, path2);
CGContextDrawPath(context, kCGPathFill);
CGPathRelease(path0);
CGPathRelease(path1);
CGPathRelease(path2);
如果你不舒服CGPathRef
,您可以创建一个NSBezierPath
然后将其转换为CGPathRef
使用苹果文档中描述的方法构建CGPathRef从NSBezierPath对象 (反过来也可以)。