bounds

问题 I have some data that I would like to aggregate, but I'm getting the index out of bounds error, and I can't seem to figure out why. Here's my code: if period == "hour": n=3 tvec_a=np.zeros([24,6]) tvec_a[:,3]=np.arange(0,24) data_a=np.zeros([24,4]) elif period == "day": n=2 tvec_a=np.zeros([31,6]) tvec_a[:,2]=np.arange(1,32) data_a=np.zeros([31,4]) elif period == "month": n=1 tvec_a=np.zeros([12,6]) tvec_a[:,1]=np.arange(1,13) data_a=np.zeros([12,4]) elif period == "hour of the day": tvec_a

问题 I have some data that I would like to aggregate, but I'm getting the index out of bounds error, and I can't seem to figure out why. Here's my code: if period == "hour": n=3 tvec_a=np.zeros([24,6]) tvec_a[:,3]=np.arange(0,24) data_a=np.zeros([24,4]) elif period == "day": n=2 tvec_a=np.zeros([31,6]) tvec_a[:,2]=np.arange(1,32) data_a=np.zeros([31,4]) elif period == "month": n=1 tvec_a=np.zeros([12,6]) tvec_a[:,1]=np.arange(1,13) data_a=np.zeros([12,4]) elif period == "hour of the day": tvec_a

问题 My Google maps API map zooms put to show all the markers added after a google places search. On a mobile map this can take a bit to load and as this app for cyclists I prefer to only show the results within the viewport. Most research I read indicates it is not possible to only return results within the view port. Is it possible for me to just keep the map bounds from changing after the markers are added? It would be great if it would just show me the markers added to the current bounds

问题 I push a view controller ( mainVC ) and add some subviews to it. Most of these views are built on-demand, as the user takes some action. When I build each view, I refer to mainVC.view.bounds to size the view. The ones that are built on demand size just fine, but the first one (which I add in viewDidLoad ) does not seem to account for either the hidden navigation bar or the unhidden toolbar - I'm not sure which. Other questions seem to assure me that viewDidLoad is the correct place to refer

问题 With Textflow.setMaxWidth(double) I can achieve text wrapping. But how can I adjust the width of TextFlow afterwards so that it is based on the actual wrapping position? In other words, how to let the TextFlow bounds snap to all of its children Text bounds to get rid of the empty space on the right: **Edit** I have made some progress on this issue. My class derived from TextFlow now contains: double maxChildWidth = 0; for (Node child : getManagedChildren()) { double childWidth = child

问题 Is there any easy ways to find the bounding box of a polyline using Google Maps API v3? I'm working on a project where I need to update the bounds as data is added and removed from the map. This is pretty easy by just doing bd.extend(point) where bd is the bound object and point is a LatLng object. The problem is when I start removing data I would like it to change the bounds and zoom back in. Are there any built in functions that can do this or will I need to write something for myself? 回答1:

问题 I want to put a linear gradient on a line(width wise ie across it's stroke width). This line is a child of a Group node. When I apply linear gradient on line, the color stops are calculated using Group's bounds not the lines bounds. In my code below, linear gradient will show up properly when added length-wise ie "to bottom", but not when added width wise, ie "to right". Can anyone tell me what can be work around for this? Here is the SSCCE import javafx.application.Application; import javafx

问题 I have a view with pan gesture recognizer,which invokes this method - (IBAction)handlePanGesture:(UIPanGestureRecognizer *)gestureRecognizer { translation = [gestureRecognizer translationInView:self.trackingView]; bounds = self.myTextView.bounds; newBoundsOriginY = (bounds.origin.y - translation.y)/3.52; self.myTextView.contentOffset = CGPointMake(0,newBoundsOriginY); //[self.myTextView scrollRectToVisible:bounds animated:NO]; } As you can see I also have a textView and I want to scroll the

问题 I need to check that the value of a parsed qi::uint_ is less than 256. I stumbled across an SO post outlining the following syntax to run checks after a primitive type has been parsed ( qi::double_ in this example). raw [ double_ [_val = _1] ] [ _pass = !isnan_(_val) && px::size(_1)<=4 ] Here, raw[...] returns an iterator to the parsed qi::double_ value, and the final semantic action is used to "test" the resulting value. Extrapolating from the previous example, I assumed I could check bounds

问题 I have a very large image I'm trying to display in JavaFX. To do this, I've split the image into several smaller ones, and only loading/displaying the parts that are visible in my ScrollPane . To detect the area visible in the ScrollPane , I'm adding listener to ScrollPane.viewportBounds . However, the viewportBounds is only updated when I resize the window, but not when I scroll the scroll bars. If I'm to be scrolling around my large image, I need viewportBounds to be updated when I scroll