如何访问 G. Raphael 折线图中的单条线并设置其样式

发布于 2024-10-10 09:46:28 字数 484 浏览 8 评论 0原文

由于 raphael JS 库的文档非常少,我恳求集体智慧。

我有一个工作g。 raphael 多线折线图(类似于 http://g.raphaeljs.com/linechart.html

类似: var lineChart = rglinechart(10,10,300,220,[1,2,3,4,5],[[10,20,15,35,30],[5,10,5,15,20]], {阴影: true, "颜色":["#44F","#CCC"], nolines:true});

我想更改其中一行来设置填充 = 清除和描边 = 颜色

我被告知这样的东西可以工作,但没有运气 - 有什么建议吗? lineChart.lines[0].attr({lines: "#000"}),

额外加分,如何将线条的填充设置为渐变?

谢谢!

Due to the very poorly documented raphael JS library, I beseech the collective wisdom.

I have a working g. raphael multi-line line chart (similar to http://g.raphaeljs.com/linechart.html)

something like:
var lineChart = r.g.linechart(10,10,300,220,[1,2,3,4,5],[[10,20,15,35,30],[5,10,5,15,20]], {shade:true, "colors":["#44F","#CCC"], nostroke:true});

I'd like to change one of the lines to set the fill = clear and stroke = a color

I was told something like this would work, but no luck -any suggestions?
lineChart.lines[0].attr({stroke: "#000"}),

for extra credit, how can I set the fills of a line to a gradient?

thanks!

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评论(4

圈圈圆圆圈圈 2024-10-17 09:46:28

我使用 Firebug 和 console.log() 列出一行上的属性:

console.log(chart.lines[0].attr());

我单击日志行以查看详细信息,如下所示:

fill: "none"
path: [ ... ]
stroke: "#ff0000"
stroke-dasharray: ""
stroke-linecap: "round"
stroke-linejoin: "round"
stroke-width: 2
transform: []

对于我来说,我想更改笔画宽度。此代码有效:

chart.lines[0].attr({'stroke-width': 8});

优秀的 RaphaelJS 文档中列出了 line-width 属性。

对于您的问题,我希望您需要这样的代码:

chart.lines[0].attr({'fill': 'none', 'stroke': '#FF00FF'});

我希望这有帮助!

I used Firebug and console.log() to list the attributes on a line:

console.log(chart.lines[0].attr());

I clicked on the log line to see the details, like this:

fill: "none"
path: [ ... ]
stroke: "#ff0000"
stroke-dasharray: ""
stroke-linecap: "round"
stroke-linejoin: "round"
stroke-width: 2
transform: []

For me, I wanted to change the stroke-width. This code works:

chart.lines[0].attr({'stroke-width': 8});

The line-width attribute is listed in the excellent RaphaelJS documentation.

For your problem, I expect you need code like this:

chart.lines[0].attr({'fill': 'none', 'stroke': '#FF00FF'});

I hope this helps!

樱花落人离去 2024-10-17 09:46:28

以下是我通过反复试验发现的一些事情。当我发现更多时会更新。正如你所说,如果 gRaphael 实际上拥有像真实项目一样的文档,那就更好了……尽管它似乎最近已经移交,所以希望事情会有所改变。

  • 要访问折线图的线条lineChart.lines
    • 访问一组路径对象,每行一个路径对象
  • 要访问符号标记数据点(如果没有,则为空数组):lineChart.symbols
    • 访问一组集合,每组包含一行符号
  • 要访问轴线lineChart.axis
    • 访问一组路径,每条轴线对应一个路径。看起来每个轴都是一条路径,刻度线作为路径上的分流。要访问单个轴,它们位于 与设置可见轴的顺序相同(上、右、下、左),但只会有设置的数量。因此,如果您有一个底部 X 和一个左侧 Y ({axis: "0 0 1 1"}),那么 axis[0] 将是 X 轴,< code>axis[1] Y。如果有左、下、右,右将是 axis[0],bottom axis[1]、左axis[2]

  • 要访问轴文本标签lineChart.axis[n].text(其中 n是您想要的轴的编号,如上所述)
    • 访问一组 Raphael 文本对象。要对轴线和文本进行相同的更改,似乎您需要单独访问这两个集合。

Here are some things I found by trial and error. Will update as I discover more. As you say, it'd be so much better if gRaphael actually had documentation like a real project... although it seems it's recently been handed over so hopefully things will change.

  • To access the lines of a line chart: lineChart.lines
    • Accesses a set of path objects, one for each line
  • To access the symbols marking data points (or empty array if none): lineChart.symbols
    • Accesses a set of sets, each set housing the symbols for one line
  • To access the axis lines: lineChart.axis
    • Accesses a set of paths, one for each axis line. Looks like each axis is one path with the ticks as diversions on the path. To access an individual axis, they are in the same order as how you set which axis are visible (top, right, bottom, left), but there will only be as many as are set. So if you have a bottom X and a left Y ({axis: "0 0 1 1"}), then axis[0] will be the X axis and axis[1] the Y. If you have a left, bottom, and right, the right will be axis[0],bottom axis[1], left axis[2], etc.
  • To access the axis text labels: lineChart.axis[n].text (where n is the number, as above, of the axis you want)
    • Accesses a set of Raphael text objects. To do the same change to the axis lines and text, it seems you need to access both sets seperately.
无声无音无过去 2024-10-17 09:46:28

肯尼·沉建议

lineChart.lines[0].attr({"stroke": "#000"})

kenny shen advises

lineChart.lines[0].attr({"stroke": "#000"})
冧九 2024-10-17 09:46:28

我没有使用 Raphäel,但您应该能够将填充设置为透明并为描边设置颜色。如果 SVG 元素有 ID 或类,那么您应该能够通过 CSS 进行设置:

#id {
  stroke: colour;
  fill: none;
}

否则,您可以使用 path:nth-of-type() 来选择该元素,或者选择该元素就像你在 JS 中的任何其他操作一样,设置描边和填充属性。

上面的代码中有 norinkle: true 。我不确定这是否会阻止它按您的预期工作。

要设置渐变(至少在真实的 SVG 中),请将 fill 属性的值设置为指向 id 的 url。然后,您可以使用该 ID 创建一个 LinearGradient 元素。请参阅此示例了解如何编写渐变。您还可以在 SVG 中将笔画的值设置为渐变。

I've not used Raphäel, but you should be able to set the fill to transparent and set a colour to the stroke. If the SVG element has an ID or class then you should be able to set this via CSS:

#id {
  stroke: colour;
  fill: none;
}

Otherwise, you could use path:nth-of-type() to select the element, or select the element like you would any other in JS and set the stroke and fill attributes.

You have nostroke: true in the code above. I'm not sure if that is stopping it from working as you expected.

To set a gradient (at least in real SVG) you set the value of the fill attribute to a url, pointing to an id. You then create a linearGradient element with that ID. See this example of how to write gradients. You can also set the value of a stroke to a gradient too in SVG.

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