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CGContextDrawImage draws image upside down when passed UIImage.CGImage
...e image drawn correctly.
UIImage *image = [UIImage imageNamed:@"testImage.png"];
CGRect imageRect = CGRectMake(0, 0, image.size.width, image.size.height);
CGContextTranslateCTM(context, 0, image.size.height);
CGContextScaleCTM(context, 1.0, -1.0);
CGContextDrawImage(context, imageRect,...
How to Copy Contents of One Canvas to Another Canvas Locally
... canvas by DataUrl
var sourceImageData = sourceCanvas.toDataURL("image/png");
var destCanvasContext = destCanvas.getContext('2d');
var destinationImage = new Image;
destinationImage.onload = function(){
destCanvasContext.drawImage(destinationImage,0,0);
};
destinationI...
Razor MVC Populating Javascript array with Model Array
...e loop.
var allowedExtensions = new string[] { ".jpg", ".jpeg", ".bmp", ".png", ".gif" };
var bannerImages = string.Join(",", Directory.GetFiles(Path.Combine(System.Web.Hosting.HostingEnvironment.ApplicationPhysicalPath, "Images", "banners"), "*.*", SearchOption.TopDirectoryOnly)
.Where(d =>...
How to style the parent element when hovering a child element?
...then a child div with pointer-events set to auto, it works:)
Note that <img> tag (for example) doesn't do the trick.
Also remember to set pointer-events to auto for other children which have their own event listener, or otherwise they will lose their click functionality.
div.parent {
...
Side-by-side plots with ggplot2
... To print the side effect to a file, specify a device driver (such as pdf, png, etc), e.g.
pdf("foo.pdf")
grid.arrange(plot1, plot2)
dev.off()
or, use arrangeGrob() in combination with ggsave(),
ggsave("foo.pdf", arrangeGrob(plot1, plot2))
This is the equivalent of making two distinct plots us...
Unicode characters in URLs
...do modern browsers send to to servers in the request line GET /images/logo.png HTTP/1.1? Do they always percent-encode the URL?
– Flimm
Sep 11 '15 at 16:34
...
rotating axis labels in R
...0", "SP244", "SP31", "SP147")
Second, give the name for a chart file
png(file = "Bargraph.jpeg", width = 500, height = 300)
Third, Plot the bar chart
barplot(H,names.arg=M,ylab="Degree ", col= rainbow(5), las=2, border = 0, cex.lab=1, cex.axis=1, font=1,col.axis="black")
title(xlab="Service...
JavaScript hard refresh of current page
...rnal resources. You would have to read through all the a, link, script and img elements and append a random query string to the end of each external reference after the hard reload. Or, do that on the server.
– Doug Neiner
Jan 20 '10 at 5:39
...
How can I specify a local gem in my Gemfile?
...r: {
brandingHtml: "Powered by \u003ca href=\"https://img
How do I change the figure size with subplots?
...his doesn't have to do anything with your monitor. What if you output to a png? Are you saying it can never be larger than screen resolution? Its the combination of size in inches with the dpi that determines the size in pixels.
– Rutger Kassies
Jul 8 '17 at 16...