gradient

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Include SVG file in SVG the fill property in SVG accepts an url to point to a gradient/pattern element, an instance of a so-called 'paint server'. The Question: Is it possible in any browser (that is, not IE, of course), to use a gradient defined in an external SVG file? Like, in rect.svg , <rect fill="url(grad.svg#my_grad)" /> and the corresponding <linearGradient /> element in grad.svg ? It would be really

问题 I have inserted a table view on my view controller and I was wondering how can I give the cells in the table view a gradient background? Can I edit each cell individually to give it a different color gradient background for each cell? For example, each cell is labeled after an index in the trainingLevels array, how could I make to where each has a different color gradient background? Here's my code: import UIKit class ViewController: UIViewController, UITableViewDelegate,

问题 As you know, there is a gradient option in PhotoShop named AngleGradient . But, WPF has only LinearGradientBrush and RadialGradientBrush gradients. Have you any idea to how to create an AngleGradient by using XAML ? UPDATE: Samples -by photoshop: 回答1: I wrote a shader for this, compile it and add the .ps file as a resource to your project: // no input texture, the output is completely generated in code sampler2D inputSampler : register(S0); /// <summary>The center of the gradient. </summary>

问题 How do I make an image fade in qml? How do I achieve this effect? here I attach the image of how I want it to look 回答1: A possible solution is to use OpacityMask with a LinearGradient as source import QtQuick 2.9 import QtQuick.Window 2.2 import QtGraphicalEffects 1.0 Window { visible: true width: 600 height: 600 title: qsTr("Hello World") Image { id: input source: "input.jpg" anchors.fill: parent OpacityMask { source: mask maskSource: input } LinearGradient { id: mask anchors.fill: parent

问题 I'm trying to replace a sIFR based flash effect currently used on a website with CSS 3 styling. I have the text gradient effect working well using CSS 3 but the original sIFR implementation had multiple colours rather than just a simple gradient of one colour to the next. Can someone provide me an example of styling a text element such as an H2 using multiple colours along the horizontal axis? Thanks, Brian. 回答1: Here is sample SVG code - tested with FF4, Safari 5, and Chrome. Note that you

问题 I'd like to draw a Bitmap on a Canvas , with a (linear) alpha gradient applied. The important point is that I don't want to overlay the image with any other color; the background (coming from the View s behind the View that I'd be drawing this Canvas to) should just "shine through". To illustrate, my goal would be something like this (the checkerboard pattern represents the View behind) One would think that I could do something like this: Bitmap bitmap = ...; Paint paint = new Paint(); paint

问题 I have a data frame like this BP R2 LOG10 96162057 0.2118000 2.66514431 96162096 0.0124700 0.31749391 96162281 0.0008941 0.07012148 96163560 0.5011000 2.48505399 96163638 0.8702000 3.37778598 and I want to plot BP against LOG10, and color the points by R2. R2 are continuous values from 0-1. myplot <- read.cvs("mytable.csv",head=TRUE) attach(myplot) ggplot(myplot,aes(BP,LOG10, color=R2)) + geom_point() So far, so good. However I would like to display the R2 colors in manually selected

问题 Is there a way to create a cross-browser, pure CSS3 text color gradient? So, no png's. No 'webkit' only. EDIT: To be more precise: It's CSS3 only, and it's for text, not box gradients. EDIT: I found this solution , but it's only for webkit. 回答1: There is no cross-browser way to do this outside webkit because only webkit currently has a background-clip: text, and this extension to background-clip is not on standards track (as far as I am aware). If you want to relax your CSS3 requirement, you

问题 I have created a tableViewController where I'm calling this function: func setTableViewBackgroundGradient(sender: UITableViewController ,let topColor:UIColor, let bottomColor:UIColor){ let gradientBackgroundColors = [topColor.CGColor, bottomColor.CGColor] let gradientLocations = [0.0,1.0] let gradientLayer = CAGradientLayer() gradientLayer.colors = gradientBackgroundColors gradientLayer.locations = gradientLocations gradientLayer.frame = sender.tableView.bounds sender.tableView.backgroundView

问题 I know how to draw a arc and I also found how to draw a gradient line from here I have found two function can draw gradient:CGContextDrawLinearGradient and CGContextDrawRadialGradient.but how can I draw a gradient arc? I want to realize like this picture: 回答1: I spent a long time searching for how to do this, too, so I thought I'd post the way I ended up doing it. It turns out both answers are in the excellent answer to this question: Draw segments from a circle or donut For my purposes, I