Cocos2dx,layer anchor Point and scale scaling

The most recent writing code needs to be scaled, and it's layer, but it's a matter of finding out how to set the location, so I decided to study it.

First, the base code, the code good special handling, no anchor settings and scaling

Class Testlayer:public Layer {public:bool init (); Create_func (Testlayer);}; BOOL Testlayer::init () {if (!    Layer::init ()) {return false;    } Sprite *dd = Sprite::create ("Item_gift1.png");        This->addchild (DD);        This->setcontentsize (Size (200, 200));    Print several point references with layercolor *lc1 = Layercolor::create (color4b::red, 10, 10);    Lc1->setposition (50, 0);        This->addchild (LC1, 9001);    Layercolor *LC4 = layercolor::create (color4b::red, 10, 10);    Lc4->setposition (100, 0);        This->addchild (LC4, 9001);    Layercolor *LC2 = layercolor::create (color4b::red, 10, 10);    Lc2->setposition (150, 0);        This->addchild (LC2, 9001);    Layercolor *lc6 = layercolor::create (color4b::red, 10, 10);    Lc6->setposition (200, 0);        This->addchild (LC6, 9001);    Layercolor *lc3 = layercolor::create (color4b::red, 10, 10);    Lc3->setposition (0, 50);        This->addchild (LC3, 9001); Layercolor *LC5 = LayercoLor::create (color4b::red, 10, 10);    Lc5->setposition (0, 100);        This->addchild (LC5, 9001);    Layercolor *lc7 = layercolor::create (color4b::red, 10, 10);    Lc7->setposition (0, 150);        This->addchild (LC7, 9001);    Layercolor *lc8 = layercolor::create (color4b::red, 10, 10);    Lc8->setposition (0, 200);        This->addchild (LC8, 9001); return true;}

    Testlayer *t = Testlayer::create ();    T->setposition (a);    This->addchild (t, 9000);

Code Run Result:

As can be seen, Testlayer is placed in (200,200), Anchor Point in (0,0)

The Testlayer is scaled below 0.5

Testlayer *t = Testlayer::create (); T->setposition (n.); T->setscale (0.5f);

Operation Result:

(The Yellow Line is painted at the time)

You can see that the testlayer is scaled by 50%, but the lower left corner is not in (200,200)

As you can see from this code, the child in the layer is anchored (0,0), but at scale it is indeed scaled (0.5,0.5).

This place feels like a pit, why not use a uniform point? Did not write the underlying drawing code, which students know, hope to give me an answer.

Could this place be unified?

Look at the code:

This->_ignoreanchorpointforposition = False;this->setanchorpoint (Point (0, 0));

Add the above code to the Testlayer and run the result:

You can see that the zoom is consistent with the child position anchor point.

Cocos2dx,layer anchor Point and scale scaling