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PhantomJS屏幕截图D3.js数据映射

[英]PhantomJS screen capture D3.js datamaps

I would like to take screenshots of D3 maps such as this one. 我想拍摄D3地图的屏幕截图,例如这张 I am able to take screenshots of the websites with PhantomJS and rasterize.js . 我可以使用PhantomJSrasterize.js截取网站的屏幕截图。

phantomjs rasterize.js https://martingonzalez.net/datamaps-d3-example/ map_rasterize_1000x500.png 1000px*600px

Unfortunately, the arcs are cut off as you can see below. 不幸的是,弧线被切断,如下所示。

在此处输入图片说明

Is there a way get the full arcs as well? 有没有办法获得完整的弧度? I would also be able to take images of local HTML files with the D3 maps if that would be more straightforward. 如果这样更简单,我也可以使用D3映射来获取本地HTML文件的图像。

PS I used the example rasterize.js which can be found below. PS我使用了示例rasterize.js,可以在下面找到它。

"use strict";
var page = require('webpage').create(),
    system = require('system'),
    address, output, size, pageWidth, pageHeight;

if (system.args.length < 3 || system.args.length > 5) {
    console.log('Usage: rasterize.js URL filename [paperwidth*paperheight|paperformat] [zoom]');
    console.log('  paper (pdf output) examples: "5in*7.5in", "10cm*20cm", "A4", "Letter"');
    console.log('  image (png/jpg output) examples: "1920px" entire page, window width 1920px');
    console.log('                                   "800px*600px" window, clipped to 800x600');
    phantom.exit(1);
} else {
    address = system.args[1];
    output = system.args[2];
    page.viewportSize = { width: 600, height: 600 };
    if (system.args.length > 3 && system.args[2].substr(-4) === ".pdf") {
        size = system.args[3].split('*');
        page.paperSize = size.length === 2 ? { width: size[0], height: size[1], margin: '0px' }
                                           : { format: system.args[3], orientation: 'portrait', margin: '1cm' };
    } else if (system.args.length > 3 && system.args[3].substr(-2) === "px") {
        size = system.args[3].split('*');
        if (size.length === 2) {
            var pageWidth = parseInt(size[0], 10),
                pageHeight = parseInt(size[1], 10);
            page.viewportSize = { width: pageWidth, height: pageHeight };
            page.clipRect = { top: 0, left: 0, width: pageWidth, height: pageHeight };
        } else {
            console.log("size:", system.args[3]);
            var pageWidth = parseInt(system.args[3], 10),
                pageHeight = parseInt(pageWidth * 3/4, 10); // it's as good an assumption as any
            console.log ("pageHeight:",pageHeight);
            page.viewportSize = { width: pageWidth, height: pageHeight };
        }
    }
    if (system.args.length > 4) {
        page.zoomFactor = system.args[4];
    }
    page.open(address, function (status) {
        if (status !== 'success') {
            console.log('Unable to load the address!');
            phantom.exit(1);
        } else {
            window.setTimeout(function () {
                page.render(output);
                phantom.exit();
            }, 200);
        }
    });
}

Try to change this logic: 尝试更改此逻辑:

 window.setTimeout(function () {
                page.render(output);
                phantom.exit();
            }, 200);

To this: 对此:

 window.setTimeout(function () {
                page.render(output);
                phantom.exit();
            }, 5000);

It is possible that 5000 milliseconds it is to much, but it is for testing. 可能要花5000毫秒,但这是用于测试。 It is better to know when animation is finished than capture screenshot. 最好知道动画何时结束而不是捕获屏幕截图。

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