问题标签 [nspoint]

I have a file like this:

each line is the coordinate of a point.

I don't know how to write a code to do following thing: read these coordinates from the file, convert them into double and store them in an array as NSPoint.

BTW, I tried to write Objective-C++, but it seems that ifstream does not work, which is a bug of XCode.

I am working on an app where I display unsupported (by XCode) file format). So I've subclassed NSBitmapImageRep to display it in a subclass of NSImaageView. I've set it up to be proportionally scallable (up or down). Now I need to add a possibility to get coordinates of pixel in a bitmap. So I've ovveride mouseDown: method:

After getting NSPoint I should try to convert it to co-ordinates of a bitmap BUT first I have no idea How to solve the problem that locationInWindow returns NSPoint of a NSImageView, not of the bitmap which is ussually smaller and has unused margins in NSImageView, but I can click on the margin and mouseDown event returns me NSPoint in that margin. Do you have any idea what I shoud do?

CGPoint、CGSize 和 CGRect 的单位是什么；NSSize、NSPoint 和 NSRect？

我是 Objective-c 的新手，我创建了一个主窗口，我想在当前屏幕的右下角显示它。我尝试了以下代码

它有什么问题？如何解决？

我有 4 个 NSPoint，它们是矩形的 4 个角

现在我有另一个 NSPoint，这是鼠标下降的地方（mousedown_nsp）。

找到与mousedown_nsp相关的最近的 NSPoint（在 4 个矩形角 NSPoints 中）的最佳方法是什么？

我想只是做一个比较来找到mousedown_nsp和其他 4 个 NSPoints 之间的距离，然后选择最小的距离，但我觉得必须有更好的方法。

有任何想法吗？

提前致谢！

I've seen this question asked multiple times here, and I tried some answers, but it doesn't seem to work for me.

I'm using above code to do my conversion, but I get same coordinates for pnt.x and pnt.y no matter where mouse location is.

I noticed that this method is deprecated, but it should still work I guess, right?

Does anyone have any good suggestion on how I can do this conversion?

Any kind of help is highly appreciated!

I am getting a point in NSPoint as:

I want to pass 273 and 534 into CGrectMake.
For example:

I am not able to get the values in that NSpoint.
I tried passing it to NsArray and NSDictionary. Nothing works. Pls help

I use Po command in console and found the value which i need is in NSPoint. But dont know how to convert it

我的应用程序中有一个 NSView 的自定义子类。我想知道视图中的确切点，相对于它的原点，是用鼠标单击的。（即不是相对于窗口原点，而是相对于自定义视图原点）。

我一直使用这个，效果很好：

但是现在我收到一个警告说convertScreenToBase已被弃用，而是使用convertRectFromScreen。但是我不能从 convertRectFromScreen 得到相同的结果，而且无论如何，我对一个点感兴趣，而不是一个矩形！

我应该使用什么来正确替换上面不推荐使用的代码？提前致谢！

我有一个自定义NSButton类，想检查（在viewWillDraw）用户当前的鼠标位置是否在按钮框架内。

我使用 获得鼠标位置NSEvent.mouseLocation()，但这给了我相对于屏幕本身的绝对值 NSPoint。

self.frame(= NSButton.frame) 而是返回一些相对坐标，指的是按钮超级视图。

结果，self.frame.contains(NSEvent.mouseLocation())不起作用，我不知道如何解决！

感谢任何帮助！

我有 mac 应用程序，我想显示来自特定 nspoint 的工作表，我有多个具有层次结构的视图，所以，我想在（上层视图，即太阳视图的子视图）视图上选择 nspoint，在 nswindow 中获取它并从中获取工作表目标点 c. 如何做到这一点？