我是gRaphael的新手而不是能夠解開源代碼的硬核JS開發人員,並且有關如何正確使用它的零文檔。gRaphael數據中的點陣圖表不顯示在Rails應用程序中
我很想在我的應用程序中啓動並運行點圖,但對於x值和y值如何在圖表畫布上繪製點來說很困惑。
我一直在使用http://g.raphaeljs.com/dotchart.html的演示作爲該圖的基礎。但是,當我修改數據集時,我會丟失圖表中的所有點。
我不認爲我理解點和畫布中x和y之間的關係。
有人請賜教,我如何包括我從下面的代碼中的數據庫返回的數據?
返回的數據是用23個要素,其範圍從8至56。
<script type="text/javascript" charset="utf-8">
window.onload = function() {
var r = Raphael("holder2"),
xs = <%= chart_xs(@weeks) %>,
ys = <%= chart_ys(@weeks) %>,
data = <%= chart_data(@weeks) %>,
axisy = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
axisx = ["12am", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12pm", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11"];
r.g.txtattr.font = "11px 'Fontin Sans', Fontin-Sans, sans-serif";
r.g.dotchart(10, 10, 620, 260, xs, ys, data, {
symbol: "o",
max: 10,
heat: true,
axis: "0 0 1 1",
axisxstep: 23,
axisystep: 6,
axisxlabels: axisx,
axisxtype: " ",
axisytype: " ",
axisylabels: axisy
}).hover(function() {
this.tag = this.tag || r.g.tag(this.x, this.y, this.value, 0, this.r + 2).insertBefore(this);
this.tag.show();
}, function() {
this.tag && this.tag.hide();
});
};
</script>
輸出一個這樣的數組:
<script type="text/javascript" charset="utf-8">
window.onload = function() {
var r = Raphael("holder2"),
xs = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
ys = [220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220],
data = [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20],
axisy = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
axisx = ["12am", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12pm", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11"];
r.g.txtattr.font = "11px 'Fontin Sans', Fontin-Sans, sans-serif";
r.g.dotchart(10, 10, 620, 260, xs, ys, data, {symbol: "o", max: 10, heat: true, axis: "0 0 1 1", axisxstep: 23, axisystep: 6, axisxlabels: axisx, axisxtype: " ", axisytype: " ", axisylabels: axisy}).hover(function() {
this.tag = this.tag || r.g.tag(this.x, this.y, this.value, 0, this.r + 2).insertBefore(this);
this.tag.show();
}, function() {
this.tag && this.tag.hide();
});
};
</script>
弗雷德里科,然後可以你解釋爲什麼這圖表在屏幕上什麼也不顯示如果你的解釋成立,那麼每23個數據點應在整個畫布上連續的線表示:
<script type="text/javascript" charset="utf-8">
window.onload = function() {
var r = Raphael("holder"),
xs = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
ys = [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7],
data = [294, 300, 204, 255, 348, 383, 334, 217, 114, 33, 44, 26, 41, 39, 52, 17, 13, 2, 0, 2, 5, 6, 64],
axisy = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
axisx = ["12am", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12pm", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11"];
r.g.txtattr.font = "11px 'Fontin Sans', Fontin-Sans, sans-serif";
r.g.dotchart(10, 10, 620, 260, xs, ys, data, {symbol: "o", max: 10, heat: true, axis: "0 0 1 1", axisxstep: 23, axisystep: 6, axisxlabels: axisx, axisxtype: " ", axisytype: " ", axisylabels: axisy}).hover(function() {
this.tag = this.tag || r.g.tag(this.x, this.y, this.value, 0, this.r + 2).insertBefore(this);
this.tag.show();
}, function() {
this.tag && this.tag.hide();
});
};
</script>
但不顯示任何內容。這是我對我的數據的問題,這與硬編碼腳本中的數據大致一致。那麼如何在原始輸出中查看數據(請參閱問題)以正確顯示您的想法?
如果您發佈生成的HTML,JS可能很有用,否則我們不知道您傳遞的數據是什麼樣的...... – macarthy 2011-02-08 04:08:28
編輯了該問題以包含生成腳本標記。 – 2011-02-08 07:31:51