Text On Layer

[bubudrc]

hi... me again 😄

I want to ask you about how can I add text inside the lines with the distance between the start poing and the end point?

Can you help me?

Thanks

[lll1024]

Is like this? Marcelo Perretta <[email protected]>于2017年10月4日 周三上午12:16写道：

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hi... me again 😄 I want to ask you about how can I add text inside the lines with the distance between the start poing and the end point? Can you help me? Thanks — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#3>, or mute the thread <https://github.com/notifications/unsubscribe-auth/APEgNLZveEYHUnjnNSTuMkOkroEL5Kssks5sol31gaJpZM4PsYyC> .

[lll1024]

sorry I am finding job so a little busy I send you a video but it seems fail so I change it with picture The following code may be useful for u : ********************************************************************************************************************** - (void)drawWord:(NSString *)rulerLength{ NSDictionary *attribute = @{NSFontAttributeName: [UIFont systemFontOfSize:14]}; CGRect rect = [rulerLength boundingRectWithSize:CGSizeMake(MAXFLOAT, MAXFLOAT) options: NSStringDrawingUsesLineFragmentOrigin attributes:attribute context:nil]; //ensure the word drawing of start point CGFloat wordOffsetAngle = [self angleMiddleWithFirstPoint:self. firstPoint andSecondPoint:self.lastPoint]; CGPoint pointMiddle = [self middlePoint:self.firstPoint and:self. lastPoint]; CGFloat angle = [self angleWordWithFirstPoint:self.firstPoint andSecondPoint:self.lastPoint]; CGPoint wordPoint; CGFloat dx = self.lastPoint.x - self.firstPoint.x; if (dx > 0) { pointMiddle = CGPointMake(pointMiddle.x+5*sin(angle), pointMiddle.y+ 5*cos(angle)); wordPoint = CGPointMake(pointMiddle.x-(rect.size.width/2)*cos(wordOffsetAngle), pointMiddle.y-(rect.size.width/2)*sin(wordOffsetAngle)); } else { pointMiddle = CGPointMake(pointMiddle.x-5*sin(angle), pointMiddle.y- 5*cos(angle)); wordPoint = CGPointMake(pointMiddle.x+(rect.size.width/2)*cos(wordOffsetAngle), pointMiddle.y+(rect.size.width/2)*sin(wordOffsetAngle)); } CGFloat wordAngle = [self angleWordDirectionWithFirstPoint:self. firstPoint andSecondPoint:self.lastPoint]; CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSelectFont(context, "Helvetica", 14, kCGEncodingMacRoman); CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor); if (self.color) { CGContextSetFillColorWithColor(context, self.color.CGColor); } CGContextSetTextDrawingMode(context, kCGTextFill); CGContextSetTextMatrix(context, CGAffineTransformRotate( CGAffineTransformMake(1, 0, 0, -1, 0, 0), wordAngle)); CGContextShowTextAtPoint(context, wordPoint.x, wordPoint.y, [rulerLength UTF8String], rulerLength.length); } - (CGFloat)angleMiddleWithFirstPoint:(CGPoint)firstPoint andSecondPoint:(CGPoint)secondPoint { CGFloat dx = secondPoint.x - firstPoint.x; CGFloat dy = secondPoint.y - firstPoint.y; CGFloat angle = atan2f(fabs(dy), fabs(dx)); NSLog(@"angle:%lf",angle); if (dx >= 0 && dy >= 0) { return angle; } if (dx <= 0 && dy >= 0) { return M_PI-angle; } if (dx <= 0 && dy <= 0) { return angle-M_PI; } if (dx >= 0 && dy <= 0) { return -angle; } return angle; } -(CGPoint)middlePoint:(CGPoint)start and:(CGPoint)end{ return CGPointMake((start.x+end.x)/2, (start.y+end.y)/2); } - (CGFloat)angleWordWithFirstPoint:(CGPoint)firstPoint andSecondPoint:(CGPoint)secondPoint { CGFloat dx = secondPoint.x - firstPoint.x; CGFloat dy = secondPoint.y - firstPoint.y; CGFloat angle = atan2f(fabs(dy), fabs(dx)); NSLog(@"angle:%lf",angle); if (dx >= 0 && dy >= 0) { return -angle; } if (dx <= 0 && dy >= 0) { return M_PI+angle; } if (dx <= 0 && dy <= 0) { return M_PI-angle; } if (dx >= 0 && dy <= 0) { return angle; } return angle; } - (CGFloat)angleWordDirectionWithFirstPoint:(CGPoint)firstPoint andSecondPoint:(CGPoint)secondPoint { CGFloat dx = secondPoint.x - firstPoint.x; CGFloat dy = secondPoint.y - firstPoint.y; CGFloat angle = atan2f(dy, dx); if (dx > 0) { angle = -angle; } else { angle = M_PI-angle; } return angle; } 2017-10-13 18:58 GMT+08:00 Jarvi Liu <[email protected]>:

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Is like this? Marcelo Perretta ***@***.***>于2017年10月4日 周三上午12:16写道： > hi... me again 😄 > > I want to ask you about how can I add text inside the lines with the > distance between the start poing and the end point? > > Can you help me? > > Thanks > > — > You are receiving this because you are subscribed to this thread. > Reply to this email directly, view it on GitHub > <#3>, or mute the thread > <https://github.com/notifications/unsubscribe-auth/APEgNLZveEYHUnjnNSTuMkOkroEL5Kssks5sol31gaJpZM4PsYyC> > . >

[bubudrc]

@lll1024

where did you add this code?

how can I call the method to send the string?

[lll1024]

when I draw the lines I can add text by these code

otherwise the code is only for reference

it can't be used without any changes because our project is different

[harii1234]

Can u please put swift version for this code.?