Cocoa API解説(macOS/iOS)

iOS , Mac アプリケーション開発のために使われる主要フレームワークの日本語情報です。

目次

initWithTransform:


Index>Foundation>NSAffineTransform

変換マトリックスをaTransformで初期化して返します
-(id)initWithTransform:(NSAffineTransform *)aTransform:

解説

変換マトリックスをaTransformで初期化して返します。(NSAffineTransformクラス、10.3までのAppKitから10.4からFoundationに変更)

返り値

( id )

変換マトリックス

引数

( NSAffineTransform * )aTransform

変換マトリックス

クラス

NSAffineTransform

Instance Methods

使用可能

10.0

参照

例文

drawRect:で使わない場合

- (IBAction)method002:(id)sender {
    //make bezier path
	NSBezierPath *thePath1 = [NSBezierPath bezierPath];
	
    //make affin transform
    NSAffineTransform *affin = [NSAffineTransform transform];
	//NSAffineTransform *affin2 = [[NSAffineTransform alloc] initWithTransform:affin];
    
    //focus window's view
    [_window.contentView lockFocus];
        NSRect rect = [_window.contentView frame ];
        [[NSColor windowBackgroundColor] set];
        NSRectFill(rect);
        //set winding rule
        [thePath1 setWindingRule:NSEvenOddWindingRule];
        
        [thePath1 moveToPoint:NSMakePoint(20,20)];
        [thePath1 appendBezierPathWithOvalInRect:NSMakeRect(50,50,100,100)];
        [thePath1 appendBezierPathWithOvalInRect:NSMakeRect(20,20,80,80)];
        
        //1st draw
        [[NSColor blueColor] set];
        [thePath1 fill];
        
        [affin translateXBy: 50.0 yBy: 0.0];
        
        NSAffineTransform *affin2 = [[NSAffineTransform alloc] initWithTransform:affin];
        [thePath1 transformUsingAffineTransform: affin];
        
        //2nd draw
        [[NSColor yellowColor] set];
        [thePath1 fill];
        
        [affin2 translateXBy: 0.0 yBy: 50.0];
        [thePath1 transformUsingAffineTransform: affin2];
        //3rd draw
        [[NSColor redColor] set];
        [thePath1 fill];
	
    //unlock focus
    [_window.contentView unlockFocus];
    [_window.contentView displayIfNeeded];
}

drawRect:で使う場合

#import "MyView.h"

@implementation MyView


-(void)drawRect:(NSRect)rect
{
	
	NSBezierPath *thePath1 = [NSBezierPath bezierPath];
	NSAffineTransform *affin = [NSAffineTransform transform];
	NSAffineTransform *affin2 = [NSAffineTransform transform];
	[thePath1 setWindingRule:NSEvenOddWindingRule];
	
	[thePath1 moveToPoint:NSMakePoint(20,20)];
	
	[thePath1 appendBezierPathWithOvalInRect:NSMakeRect(50,50,100,100)];
	[thePath1 appendBezierPathWithOvalInRect:NSMakeRect(20,20,80,80)];
	
	[[NSColor blueColor] set];
	[thePath1 fill];
	
	[affin translateXBy: 10.0 yBy: 0.0];
	[affin2 translateXBy: 0.0 yBy: 10.0];
	
	[thePath1 transformUsingAffineTransform: affin];
	
	[[NSColor yellowColor] set];
	[thePath1 fill];
	
	[affin initWithTransform:affin2];
	[thePath1 transformUsingAffineTransform: affin];
	[[NSColor redColor] set];
	[thePath1 fill];
	
	
}

@end