How to save an HTML5 Canvas as an image on a server?

I'm working on a generative art project where I would like to allow users to save the resulting images from an algorithm. The general idea is: Create an image on an HTML5 Canvas using a generative algorithm When the image is completed, allow users to save the canvas as an image file to the server Allow the user to either download the image or add it to a gallery of pieces of produced u

如何将HTML5 Canvas作为图像保存在服务器上?

我正在创作一个生成性艺术项目,我希望允许用户从算法中保存最终的图像。 总体思路是: 使用生成算法在HTML5 Canvas上创建图像 图像完成后,允许用户将画布作为图像文件保存到服务器 允许用户下载图像或将其添加到使用算法生成的图片库中。 但是,我坚持第二步。 在Google的一些帮助下,我发现了这篇博文,这篇博文似乎正是我想要的: 这导致了JavaScript代码: function saveImage() { var canvasData = canvas.t

axis with labels in months

I am trying to create a graph for plotting height with respect to age in years using d3js in angular js. I created a linear scale but the linear scale is in multiples of 5 5,5.5,6,... I want to create an x-axis scale as 5,5.6,6,6.6,7...18 . Here 5 will represent January and 5.6 will represent June . Since there are 12 months when calculating the years the data is getting plotted wrongly.

在几个月内带有标签的轴

我正在尝试创建一个图表,用角度js中的d3js绘制年龄相对于年龄的高度图。 我创建了一个线性比例尺,但线性比例是5的倍数 5,5.5,6,... 我想创建一个x轴比例为5,5.6,6,6.6,7...18 。 这里5代表January ,5.6代表June 。 由于有12个月的时间计算错误地绘制数据。 例如 date of birth is 01-jan-2011 date of entry is 05-dec-2016 when calculating the years it is 5.11 I am unable to plot this in graph 我试过把

c3 js: How can I group by Year on the X

Using c3 js library for charts (c3js.org). I'am trying to achieve something similar to this chart (ie, add year label 2011, 2012, 2013 on a seperate line after Q1, Q2, Q3, Q4) var chart = c3.generate({ data: { x: 'x', columns: [ ['x', '2013-01-01', '2013-01-02', '2013-01-03', '2014-01-04', '2014-01-05', '2014-01-06'], ['data1', 30, 200, 100, 400, 150, 250], [

c3 js:我如何在X上按年分组

使用c3 js库进行图表(c3js.org)。 我试图实现类似于这张图表的东西(例如,在Q1,Q2,Q3,Q4之后在2011年,2012年,2013年单独添加一个年份标签) var chart = c3.generate({ data: { x: 'x', columns: [ ['x', '2013-01-01', '2013-01-02', '2013-01-03', '2014-01-04', '2014-01-05', '2014-01-06'], ['data1', 30, 200, 100, 400, 150, 250], ['data2', 130, 340, 200, 500, 250, 350]

Django set field values dynamically based on other fields

I'm trying to set a field default value based on other field selection that is foreign. Basically, these are the classes: class Product(models.Model): description = models.CharField('Description', max_length=200) price = models.FloatField('Price') class Sell(models.Model): product = models.ForeignKey(Product) price = models.FloatField('Price') Each "Pr

Django根据其他字段动态设置字段值

我试图设置一个字段默认值的基础上,其他外地选择。 基本上,这些是类: class Product(models.Model): description = models.CharField('Description', max_length=200) price = models.FloatField('Price') class Sell(models.Model): product = models.ForeignKey(Product) price = models.FloatField('Price') 每个“产品”都有默认价格(或建议价格),所以当用户在管理页面中想要添加新

Responsive AdSense Units Break Layout On Window Resize: How To Fix?

I've created a responsive web layout on two of my sites, and it works beautifully, but I'm struggling to implement Google AdSense responsive ads. The ads work great on mobile, reloading on orientation changes, but on desktops, they break the layout whenever the browser window is resized. In some cases, they spill over, blocking content, which is a violation of AdSense policy. I would

响应式AdSense单元在窗口大小调整时的布局:如何修复?

我在两个我的网站上创建了自适应网页布局,并且效果非常好,但我努力实施Google AdSense自适应广告。 广告在移动设备上运行良好,在方向更改上重新加载,但在桌面上,只要浏览器窗口调整大小,它们就会破坏布局。 在某些情况下,它们会泄漏并阻止内容,这违反了AdSense政策。 理想情况下,我希望能够通知广告重新加载,但我不知道这是否可以通过Google政策允许的方式进行。 作为下一个最佳解决方案,我写了JavaScript,它

Remove adsense on mobile

I'm working on my responsive design but having trouble with adsense. I have an ad which should show up on the desktop design, but not on the mobile design. So the code of the ad should be placed in the html only if the website is viewed on a desktop. It's possible with css using display: none, but this is against adsense TOS, so not a solution. I think it's possible with a PHP c

移除移动AdSense

我正在设计自己的响应式设计,但遇到了AdSense问题。 我有一个应该显示在桌面设计上的广告,而不是移动设计。 因此,只有在桌面上查看网站时,广告的代码才应放置在html中。 这可能与CSS使用显示:无,但这是违反AdSense TOS,所以不是一个解决方案。 我认为可以使用像http://mobiledetect.net这样的PHP类,但我更愿意检查浏览器宽度,然后决定要做什么。 Adsense具有如下所示的认可示例,但我可以将其用于我的目标吗?

Mysql : invisible characters

To simplify, I save a JSON in my Mysql database, the JSON has this form: { "idAd": "", "titleAd": "F2 47m² 1340 CC", "dateAd": "2017-11-26", "priseAd": 1340, } The field "titleAd" can contain special characters, including some weird and invisible characters :p So when I make an extraction of this field the invisible character turns into "?" I know it's a

Mysql:隐形字符

为了简化,我在我的Mysql数据库中保存了一个JSON,JSON的格式如下: { "idAd": "", "titleAd": "F2 47m² 1340 CC", "dateAd": "2017-11-26", "priseAd": 1340, } 字段“titleAd”可以包含特殊字符,包括一些奇怪的和不可见的字符:p因此,当我提取这个字段时,不可见字符会变成“?” 我知道这是一个基本和简单的编码问题,但我找不到解决方案。 { "idAd": "", "titleAd": "F2 47m² 1340? CC", "date

Manually manage child views in Ember

I am having difficulty finding the best way to manually manage a set of child views in Ember. I have a rough working example here: http://jsbin.com/ObIjosI/2/edit which is far from ideal since child view elements are inserted into the DOM then moved. My use case is using Three.js CSS3D renderer to manipulate the position of Ember views' elements. The renderer has its own DOM element and s

手动管理Ember中的子视图

我很难找到手动管理Ember中的一组子视图的最佳方法。 我在这里有一个粗略的工作示例:http://jsbin.com/ObIjosI/2/edit这远非理想,因为子视图元素被插入DOM然后移动。 我的用例是使用Three.js CSS3D渲染器来操纵Ember视图元素的位置。 渲染器具有独立于Ember视图或模板的独立DOM元素和结构。 我正在寻找一个解决方案,允许视图的元素由Ember管理和渲染,但是使用Three.js CSS3D渲染器插入并从DOM中移除。

AngularJS: How to run additional code after AngularJS has rendered a template?

I have an Angular template in the DOM. When my controller gets new data from a service, it updates the model in the $scope, and re-renders the template. All good so far. The issue is that I need to also do some extra work after the template has been re-rendered and is in the DOM (in this case a jQuery plugin). It seems like there should be an event to listen to, such as AfterRender, but I c

AngularJS:如何在AngularJS渲染模板之后运行其他代码?

我在DOM中有一个Angular模板。 当我的控制器从服务获取新数据时,它会更新$ scope中的模型,然后重新呈现模板。 迄今为止都很好。 问题是我需要在模板被重新渲染并且在DOM中(在这个例子中是一个jQuery插件)之后做一些额外的工作。 似乎应该有一个事件要听,比如AfterRender,但是我找不到任何这样的事情。 也许一个指令是一条可行的路线,但它似乎也太早了。 这是一个jsFiddle概述我的问题:小提琴AngularIssue ==

is javascript prototype with closure a good thing in terms of good practice

I'm trying to learn javascript for a few weeks (node.js). I have some provious knowledge of .NET, and that turns out to be a bad thing. My understanding of javascript in general is that: everything should be put in functions, we can think of them as classes, but not call them that way functions (methods) should always be put in a prototype, a prototype is a something like a shared funct

是关于JavaScript的原型封闭好的做法方面的一件好事

我试图学习几个星期的JavaScript(node.js)。 我有一些.NET的知识,结果证明这是一件坏事。 我对JavaScript的总体理解是: 一切都应该放在功能上,我们可以把它们看作是类,但不要这样称呼它们 函数(方法)应该总是放在一个原型中,原型对于我们的“类”的每个实例都是一个共享函数,就是说 - 为所有这些实例安装一次 关闭是一件好事,他们隐藏私人方法,他们似乎也持续到记忆中,直到不知名的时刻,持有增值税 这是为