resolution

问题 I hope you all are safe. I know this question asked several times but not getting a perfect answer. I just wanted to capture an image from UIView with high resolution the main this is that image should not be a blur. I have tried this code extension UIView { func asImage() -> UIImage { let renderer = UIGraphicsImageRenderer(size: self.bounds.size) let capturedImage = renderer.image { (ctx) in self.drawHierarchy(in: self.bounds, afterScreenUpdates: true) } return capturedImage } } Right now

问题 I hope you all are safe. I know this question asked several times but not getting a perfect answer. I just wanted to capture an image from UIView with high resolution the main this is that image should not be a blur. I have tried this code extension UIView { func asImage() -> UIImage { let renderer = UIGraphicsImageRenderer(size: self.bounds.size) let capturedImage = renderer.image { (ctx) in self.drawHierarchy(in: self.bounds, afterScreenUpdates: true) } return capturedImage } } Right now

问题 I'd like to create a PNG image in gnuplot and use it in MS-Word . However, if I use set terminal pngcairo enhanced font "Times New Roman,12.0" size 15cm,11cm the quality turns out to be poor. I read that the GNUPLOT uses only 72dpi . Is there a way to increase this number? 回答1: Simply specify the desired resolution in pixels rather than in centimeters: set terminal pngcairo enhanced font "Times New Roman,12.0" size 1500,1100 will generate an image that is 1500 pixels wide and 1100 pixels high

问题 I'm looking to apply an affine transformation, defined in homogeneous coordinates on images of different resolutions, but I encounter an issue when one ax is of different resolution of the others. Normally, as only the translation part of the affine is dependent of the resolution, I normalize the translation part by the resolution and apply the corresponding affine on the image, using scipy.ndimage.affine_transform. If the resolution of the image is the same for all axes, it works perfectly,

问题 Is there a equatable bit of code to GetSystemMetrics in win32api, for Ubuntu? I need to get the monitors width and height in pixels. 回答1: I assume you're a GUI toolkit. Why else would you be interested in the screen dimensions? Check out gtk.gdk.screen_width() and gtk.gdk.screen_height() from PyGTK. Something similar should be available for QT. 回答2: I can suggest a few approaches that can be used. I have not used the xlib version though. 1) xlib ( X client library for Python programs), if

问题 Hi all I have problem with my QML code. I made mistake and I went to put certain size to elements and now I have problem when putting app on other devices. I will paste you my code where I have width and height so you can change it to show me how to work with dynamic resizeing. I need to say that I am calling qml file from qt with this code: QDeclarativeView *view= new QDeclarativeView; ui->setupUi(this); setCentralWidget(view); QDeclarativeContext *ctxt = view->rootContext(); ctxt-

问题 Hi all I have problem with my QML code. I made mistake and I went to put certain size to elements and now I have problem when putting app on other devices. I will paste you my code where I have width and height so you can change it to show me how to work with dynamic resizeing. I need to say that I am calling qml file from qt with this code: QDeclarativeView *view= new QDeclarativeView; ui->setupUi(this); setCentralWidget(view); QDeclarativeContext *ctxt = view->rootContext(); ctxt-

问题 Hi all I have problem with my QML code. I made mistake and I went to put certain size to elements and now I have problem when putting app on other devices. I will paste you my code where I have width and height so you can change it to show me how to work with dynamic resizeing. I need to say that I am calling qml file from qt with this code: QDeclarativeView *view= new QDeclarativeView; ui->setupUi(this); setCentralWidget(view); QDeclarativeContext *ctxt = view->rootContext(); ctxt-

问题 Hi all I have problem with my QML code. I made mistake and I went to put certain size to elements and now I have problem when putting app on other devices. I will paste you my code where I have width and height so you can change it to show me how to work with dynamic resizeing. I need to say that I am calling qml file from qt with this code: QDeclarativeView *view= new QDeclarativeView; ui->setupUi(this); setCentralWidget(view); QDeclarativeContext *ctxt = view->rootContext(); ctxt-

问题 Is there a workaround to use physical screen width in CSS media queries? Today, there are phones which exceed the resolution of desktop monitors. However, phones should still display the mobile layout and desktops the standard layout. So I can't rely on pixel based queries like the example below. Instead, I need either a physical measurement, or one about the pixel density. @media screen and (min-width: 700px) { } Since I haven't found such measurements through my research, they might not