vortiwow.blogg.se - Android app to make my logo fly

#ANDROID APP TO MAKE MY LOGO FLY INSTALL#
#ANDROID APP TO MAKE MY LOGO FLY PORTABLE#
#ANDROID APP TO MAKE MY LOGO FLY CODE#

(Off-topic: I've just updated my blog page, I prefer the 2-column sidebar because: (a) there are now 20 monthly archives links (b) I wanted to add a ton of chicklets (c) I wanted to add more bio info. XBM's not used often, but there are some nice examples: Wolfenstein 5K, most notably, as well as this bitmap editor and a sparklines library. N after each of the #define lines), then you can make any image's SRC If you get your image data in that format in a string (complete with the However, it does have the virtue of being a plain-text format which, like the data: protocol, you can assign an image source to. Unfortunately, XBM has the rather major constraint that it's black-and-white. Works on IE and Firefox, but not Safari or Opera. Yes, some browsers can display XBM images. Logo.src = 'data:image/gif base64,R0lGODlhDQAOAJEAANno6wBmZgAAAAAAACH5BAAAAAAA'+ 'LAAAAAANAA4AQAIjjI8Iyw3GhACSQecutsFV3nzgNi7SVEbo06lZa66LRib2UQAAOw%3D%3D' ĭ(logo, ) Var logo = document.createElement('img') Create an image and set its src to a data: resource.

#ANDROID APP TO MAKE MY LOGO FLY PORTABLE#

And of course it's easy enough to make it fully portable too. You can do some impressive-looking things with just CSS and the DOM, e.g.

Introduce a Richer Plugin, most likely Flash, to beef up the browser's multimedia capabilities.

As with SVG, you use XML to specify an image.įortunately, the Canvas-on-VML hack mentioned earlier means you can take advantage of VML without committing to IE-specific code, though it's (obviously) not a perfect emulation by any means. VML is effectively the MS equivalent of SVG, and as such works in IE, and only in IE. The various Ajax image manipulation tools do something like this. Of course, performance will probably suffer if you rely on the server to create images on the fly, and you can only generate them once a second or so. It can be a server-side script that happens to output a binary image with the appropriate header, and furthermore, the script can accept CGI parameters, so a unique image can be generated on the fly. On the server, the image need not be a static image file. This is standard DHTML/Ajax stuff and works with any browser. Once you have an image tag (either in the initial HTML or created on the fly with document.createElement("img"), you can set its source to any URL, even external to your domain (though cross-domain "hot-linking" should generally be done only with permission). But wouldn't an imperfect metaphor be easier to grok than the generic "Context"? Alas, it's a common idiom in graphics programming and will be around for a while.) more concrete terms than "Context" which imply some sort of metaphor. (BTW Canvas uses the dreaded term, "Context", to refer to what should really be called "paintbrush", "pen", or "turtle". Var canvas = document.getElementById('tutorial') So you set a colour, draw something, change the fill style, draw something else, etc.

#ANDROID APP TO MAKE MY LOGO FLY CODE#

Canvas tags include code to build up an image, a bit like moving a turtle in the Logo language. Where SVG is about things, Canvas is about actions. No sign of life in IE, but this there's a fantastic adaptor hack ( via Ajaxian) that emulates Canvas using IE's native VML support (more on VML below), and it's now been rolled into an open-source project, ExplorerCanvas by some Googlers. Canvas was introduced in Safari and now in Firefox and Opera too. Var shape = svgDocument.createElementNS(svgns, "circle") In this example, we create a circle of radius 25 (adapted from this tutorial): However, you don't actually have to specify the XML as a literal string message you can create a blank SVG document object model (DOM) and manipulate it to build up an image. You could build up the XML string in the code or pull it down from the server with a remote request. Here's an SVG circle (adapted from W3CSchools: Being a vector format, it stores the image at a high level (curves, lines, etc), so it scales better than a plain bitmap. SVG is an old W3C standard that creates images based on XML.

#ANDROID APP TO MAKE MY LOGO FLY INSTALL#

Current versions of Firefox, Opera, and Safari (nightly builds) support SVG natively, but with IE and older versions, users need to install a plugin. Please submit any other techniques you’re aware of!!! Starting with the obvious and ending with the obscure. Here I list all the techniques I can think of to create graphics and images dynamically when you’re creating an Ajax/DHTML/Javascript web app, with varying degrees of portability and usability. There are indeed techniques to do it, albeit far from perfect, and some are do-able today if you take a pragmatic view of things and keep graceful degradation in mind. The ability to create rich graphics on the fly is one of the critical gaps in Ajax. Ajax/Javascript: 8 Ways to Create Graphics on the Fly - digg this