bounds

CALayer frame.size not equal to bounds.size

我与影子孤独终老i 提交于 2019-12-03 17:07:31
I happened to something strange to me on CALayer.And finally found the CALayer's frame.size not equal to its bounds.size, which I couldn't understand.I know frame is in the super's coordinate system and bounds is its own coordinate,and the usual case is frame.origin is not equal to bounds.origin but frame.size is equal to bounds.size. That is because you applied a transform, as apple says on the documentation for the frame property. Warning If the transform property is not the identity transform, the value of this property is undefined and therefore should be ignored. ... Changes to this

Determine the bounding rect of a WPF element relative to some parent

依然范特西╮ 提交于 2019-12-03 15:41:49
问题 I consider this a pretty simple request, but I can't seem to find a conclusive answer in my searches. How can I determine the bounds of a particular visual element in my window, relative to some other parent element? I've tried using LayoutInformation.GetLayoutSlot but this just seems to return a Rect at 0,0 and doesn't reflect the actual location of the element. What I'm trying to do is take a "screenshot" of a window using RenderTargetBitmap and then crop it to a particular element, but I

When would a UIView's bounds.origin not be (0, 0)?

廉价感情. 提交于 2019-12-03 10:32:24
问题 When would an UIView's bounds.origin not be (0, 0) ? This paragraph was helpful to me: IMPORTANT!! Bounds X and Y, the origin, are for moving inside the View. For eample X+5, moving 5pix to the left of the frame's origin meaning draw all content within this View to the left 5pix of frame's origin. It doesn't do anything to itself, it is what being drew on it that get affected. But it describes only the case when I had set the value of bounds.origin myself. In what other cases the value of

Getting map zoom level for given bounds on Android like on JS Google Maps API: map.getBoundsZoomLevel(bounds)

落花浮王杯 提交于 2019-12-03 08:12:11
I have a cluster marker that defines a bounding rectangle containing a group of markers. The cluster has a center (lat,lon), a marker count and a latitude and longitude span to calculate the bounds. The Google Maps API (JS) has a function called "getBoundsZoomLevel(bounds)" but I cannot find an equivalent method in the Google Maps SDK for Android. How can I estimate the zoom level for given bounds (especially on different devices with different resolutions/densitys)? I've planned that an user can touch a cluster marker and the map view will be centered to the center and the bounds of that

google maps. how to create a LatLngBounds rectangle (square) given coords of a central point

心不动则不痛 提交于 2019-12-03 07:28:26
问题 I have a point (X,Y) and I want to create a square , Google maps LatLngBounds object so to make geocode requests bias only into this LatLngBound region. How can I create such a LatLngBounds square with center the given point? I have to find the NE and SW point. But how can I find it given a distance d and a point (x,y)? Thanks 回答1: You can also getBounds from a radius defined as a circle and leave the trig to google. new google.maps.Circle({center: latLng, radius: radius}).getBounds(); 回答2:

google maps. how to create a LatLngBounds rectangle (square) given coords of a central point

喜夏-厌秋 提交于 2019-12-02 21:00:35
I have a point (X,Y) and I want to create a square , Google maps LatLngBounds object so to make geocode requests bias only into this LatLngBound region. How can I create such a LatLngBounds square with center the given point? I have to find the NE and SW point. But how can I find it given a distance d and a point (x,y)? Thanks You can also getBounds from a radius defined as a circle and leave the trig to google. new google.maps.Circle({center: latLng, radius: radius}).getBounds(); well that's very complicated. for a rough box try this: if (typeof(Number.prototype.toRad) === "undefined") {

Adding a TabBarController as the Subview of a View

℡╲_俬逩灬. 提交于 2019-12-02 18:39:24
I am loading a splash screen when my app starts. Then I want to load a TabBarController and it's ViewControllers. However, my TabBarController window does not scale to the screen size. Probably 3/4 of the TabBar at the bottom is getting cut off and There is a slim aprox 20 pixel gap at the top of the screen below the status bar. How do I resize the TabBarController properly? Here is the code in my SplashViewController loading the splash view, and the TabBarController: -(void)loadView{ // Init the view CGRect appFrame = [[UIScreen mainScreen] applicationFrame]; UIView *view = [[UIView alloc]

extension function screenshot not capturing the same area in iphone and ipad

牧云@^-^@ 提交于 2019-12-02 17:59:53
问题 I am using a extension function to take a screenshot of a uiview. The problem is that the results look very different. I want the photo to look the same regardless of weather its a ipad or iphone. I am manually entering the constraints so I expect the images to be the same. I want to using the function to go to the orgin or center of the viewcontroller and be 200 height and 200 width. So the image should be the same regardless of the device because it starts in the center and is the same size

How to bound a value in a function in r

邮差的信 提交于 2019-12-02 16:57:02
问题 I have this function to maximize: funcToOpt <- function (theta1,theta2,theta3) { inner <- rowSums((wb + (theta1*X1+theta2*X2+theta3*X3) / Nt) * r) innerU <- u(inner, gamma) # u() is another function return (sum(innerU) / T) } fbb <- function(x) funcToOpt(x[1],x[2],x[3]) max <- optim(c(0,0,0),fbb,control=list(fnscale=-1)) Where: wb,X1,X2,X3,r are TxN matrices and Nt a vector with length of N I wanna just that (wb + (theta1*X1+theta2*X2+theta3*X3) / Nt) can't assume negative values. Is there

Java Arry Index Out of Bound Exception

懵懂的女人 提交于 2019-12-02 11:16:31
I have been working on this basic java program when I need to store 5 user entered values into an array, send it to a method, and find and display the lowest value. The program is simple enough, and it runs, but when I enter the last number, I get the error: Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 4 at minNumber.main(minNumber:14) Help? import java.util.*; class minNumber { public static void main(String args[]){ Scanner input = new Scanner(System.in); int numberArray[] = new int[4]; int findLowest; for (int i = 0; i <= numberArray.length; i++){ System.out.println(