png

问题 I have some svg images that I want to export as png files, using r. Is there a function that can do that? Until now I only found function that export r plots to png. But how could I export e.g. this example as a png? <svg height="100" width="100"> <circle cx="50" cy="50" r="40" stroke="black" stroke-width="3" fill="red" /> </svg> 回答1: rsvg https://github.com/jeroenooms/rsvg is designed to specifically to do this, and I'll say it does it very quickly. 回答2: The package convertGraph may be the

问题 I have an image, specifically a vector image so it can be any size I need it to be. However, I need to create 8 different image files of different sizes. Here are the sizes: AppIconMask@3x~ipad.png 180x180 AppIconMask@3x~iphone.png 180x180 AppIconMask@2x~ipad.png 152x152 AppIconMask@2x~iphone.png 120x120 GameAppIconMask@2x.png 84x84 SpotlightAppIconMask@2x.png 80x80 TableIconMask@2x.png 58x58 NotificationAppIconMask@2x.png 40x40 Is there any way to use a quick script (preferably on Mac or

问题 I have an image, specifically a vector image so it can be any size I need it to be. However, I need to create 8 different image files of different sizes. Here are the sizes: AppIconMask@3x~ipad.png 180x180 AppIconMask@3x~iphone.png 180x180 AppIconMask@2x~ipad.png 152x152 AppIconMask@2x~iphone.png 120x120 GameAppIconMask@2x.png 84x84 SpotlightAppIconMask@2x.png 80x80 TableIconMask@2x.png 58x58 NotificationAppIconMask@2x.png 40x40 Is there any way to use a quick script (preferably on Mac or

问题 I have an image, specifically a vector image so it can be any size I need it to be. However, I need to create 8 different image files of different sizes. Here are the sizes: AppIconMask@3x~ipad.png 180x180 AppIconMask@3x~iphone.png 180x180 AppIconMask@2x~ipad.png 152x152 AppIconMask@2x~iphone.png 120x120 GameAppIconMask@2x.png 84x84 SpotlightAppIconMask@2x.png 80x80 TableIconMask@2x.png 58x58 NotificationAppIconMask@2x.png 40x40 Is there any way to use a quick script (preferably on Mac or

问题 I try to figure out how big the radii of the points in my plot in x and y direction are going to be, with their size being set by cex . I want to create a plotting function which needs this information. It appears to me as if cex would be this magical parameter and nobody actually knows what exactly it is going to do. I am creating a plot with the png function. I set a graph width and height. I set par(mar) and par(oma) . I plot an empty plot with an xlim and ylim being set, and add an

问题 I have a chat, and a JSON file where all the history is stored. All images/video/audio link to require('path to media'). However, for some reason, when using vue-cli-service serve or vue-cli-service build, webpack skips my image which is used for Emoji, not including it in dist folder, but converting it to base64 string. JSON looks like this: { type: 'emoji', author: `me`, data: { src: require('../../Media/img/smiling-face.png') } }, { type: 'text', author: `me`, data: { text: `Do you read me

问题 I am trying to create a simple game using tkinter in python 3.5 using the canvas widget. For this game I am need to be able to use a transparent (png) image. Here is my code: from PIL import ImageTk from tkinter import Tk, Canvas root = Tk() im = ImageTk.PhotoImage(file="test.png") canvas = Canvas(root, width=900, height=900) canvas.pack() canvasImage = canvas.create_image(0, 0, image=im, anchor="nw") root.mainloop() The problem is that, despite getting no errors i can't load an image with a

问题 I am trying to create a simple game using tkinter in python 3.5 using the canvas widget. For this game I am need to be able to use a transparent (png) image. Here is my code: from PIL import ImageTk from tkinter import Tk, Canvas root = Tk() im = ImageTk.PhotoImage(file="test.png") canvas = Canvas(root, width=900, height=900) canvas.pack() canvasImage = canvas.create_image(0, 0, image=im, anchor="nw") root.mainloop() The problem is that, despite getting no errors i can't load an image with a

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 was just wondering, if there's some way how to automatically save the content of the cell (including the cell output) to a PNG/PDF/JPG/GIF. I'd be happy with any of the alternatives. For documentation purposes I'd like to save the state of a VBox/Hbox containing multiple iPython Widgets. There are many possible combinations of the widgets settings, I can iterate over these settings with my code, but I'd like the corresponding visual setting of the widgets to any of the possible above