Chart.jsを使用して複数線グラフを作成しようとしています
これを1行で行うことができ、固定データ構造を使用して2行を行うことができますが、データ構造に渡されたデータを表示するために複数の行を取得することはできません。
これはchart.jsのウェブサイトから短縮された使用例です
http://www.chartjs.org/docs/#getting-started
var myLineChart = new Chart(ctx).Line(data);
var data = {
labels: ["January", "February", "March", "April", "May", "June", "July"],
datasets: [
{fillColor: "rgba(220,220,220,0.2)",
strokeColor: "rgba(220,220,220,1)",
data: [65, 59, 80, 81, 56, 55, 40]
},
{fillColor: "rgba(151,187,205,0.2)",
strokeColor: "rgba(151,187,205,1)",
data: [28, 48, 40, 19, 86, 27, 90]
}
]};
今、私のコード、
lineChartData = {}; //declare an object
lineChartData.labels = []; //add 'labels' element to object (X axis)
lineChartData.datasets = []; //add 'datasets' array element to object
dataset = {}; //a single dataset is an object
dataset.fillColor = "rgba(0,0,0,0)";
dataset.strokeColor = "rgba(200,200,200,1)";
dataset.data = []; //contains the 'Y; axis data
for (line = 0; line < 4; line++) {
y = [];
lineChartData.datasets.Push(dataset); //create a new line dataset
for (x = 0; x < 10; x++) {
y.Push(line + x); //Push some data aka generate 4 distinct separate lines
lineChartData.labels += x; //adds x axis labels
} //for x
lineChartData.datasets[line].data = y; //send new line data to dataset
} //for line
ctx = document.getElementById("Chart1").getContext("2d");
myLineChart = new Chart(ctx).Line(lineChartData);
}
チャートには常に最後に生成された同じ行が4回表示されます。
私はjavascriptが初めてで、オブジェクト構造の作成に何か間違ったことをしていると確信しています。これを解決しようと1日過ごしました
次のように値を追加するchart.jsオプションがありますが、これを使用する必要があります
.addData(valuesArray、label)
データセットの4つの場所すべてに同じオブジェクト(データセット)を挿入して作成していました。したがって、ループ内の操作はすべての配列要素で実行されています(実際には、データセットで実行されており、配列の4つのインデックスすべてにデータセットがあると言う方が正確です)
次のコードでは、{}オブジェクトリテラルが実際に配列に4回挿入され、そのたびに新しい要素が提供されることに注意してください。
lineChartData = {}; //declare an object
lineChartData.labels = []; //add 'labels' element to object (X axis)
lineChartData.datasets = []; //add 'datasets' array element to object
for (line = 0; line < 4; line++) {
y = [];
lineChartData.datasets.Push({}); //create a new line dataset
dataset = lineChartData.datasets[line]
dataset.fillColor = "rgba(0,0,0,0)";
dataset.strokeColor = "rgba(200,200,200,1)";
dataset.data = []; //contains the 'Y; axis data
for (x = 0; x < 10; x++) {
y.Push(line + x); //Push some data aka generate 4 distinct separate lines
if (line === 0)
lineChartData.labels.Push(x); //adds x axis labels
} //for x
lineChartData.datasets[line].data = y; //send new line data to dataset
} //for line
ctx = document.getElementById("Chart1").getContext("2d");
myLineChart = new Chart(ctx).Line(lineChartData);
// for chart.js 2.0 the following will be to create `myLineChart`
// myLineChart = new Chart(ctx1, {
// type: 'line',
// data: lineChartData,
// });
また、ラベルに小さな変更を加えました。必要なラベルは1セットだけです。
類推を描くために、元のコードはこれをしていました
Series a = new Series()
Array chartData = []
for (var i = 0; i < 4; i++) {
chartData.add(a);
-- some modifications on a ---
}
この最後に、基本的にsameオブジェクトa
への4つのポインターを持つ配列があります。
asp.net、C#を使用したchart.jsのデータベース複数行グラフからのデータの取得
<script type="text/javascript">
$(document).ready(function () {
debugger;
$.ajax({
type: "POST",
contentType: "application/json; charset=utf-8",
url: "CampComparison.aspx/getLineChartDataload",
data:{},
async: true,
cache: false,
dataType: "json",
success: OnSuccess_,
error: OnErrorCall_
})
function OnSuccess_(reponse) {
var aData = reponse.d;
var aLabels = aData[0];
var aDatasets1 = aData[1];
var aDatasets2 = aData[2];
var aDatasets3 = aData[3];
var aDatasets4 = aData[4];
var aDatasets5 = aData[5];
var lineChartData = {
labels: aLabels,
datasets: [
{
label: "Data1",
//fill:false,
fillColor: "rgba(0,0,0,0)",
strokeColor: "rgba(220,220,220,1)",
pointColor: "rgba(200,122,20,1)",
data: aDatasets1
},
{
label: "Data2",
fillColor: 'rgba(0,0,0,0)',
strokeColor: 'rgba(220,180,0,1)',
pointColor: 'rgba(220,180,0,1)',
data: aDatasets2
},
{
label: "Data5",
fillColor: "rgba(0,0,0,0)",
strokeColor: "rgba(151,187,205,1)",
pointColor: "rgba(152,188,204,1)",
data: aDatasets3
},
{
label: "Data4",
fillColor: 'rgba(0,0,0,0)',
strokeColor: 'rgba(151,187,205,1)',
pointColor: 'rgba(151,187,205,1)',
data: aDatasets4
},
{
label: "Data4",
fillColor: 'rgba(0,0,0,0)',
strokeColor: 'rgba(151,187,205,1)',
pointColor: 'rgba(151,187,205,1)',
data: aDatasets5
},
]
}
Chart.defaults.global.animationSteps = 50;
Chart.defaults.global.tooltipYPadding = 16;
Chart.defaults.global.tooltipCornerRadius = 0;
Chart.defaults.global.tooltipTitleFontStyle = "normal";
Chart.defaults.global.tooltipFillColor = "rgba(0,160,0,0.8)";
Chart.defaults.global.animationEasing = "easeOutBounce";
Chart.defaults.global.responsive = true;
Chart.defaults.global.scaleLineColor = "black";
Chart.defaults.global.scaleFontSize = 16;
//lineChart.destroy();
//document.getElementById("canvas").innerHTML = ' ';
//document.getElementById("chartContainer").innerHTML = ' ';
//document.getElementById("chartContainer").innerHTML = '<canvas id="canvas" style="width: 650px; height: 350px;"></canvas>';
//var ctx = document.getElementById("canvas").getContext("2d");
//ctx.innerHTML = "";
//var pieChartContent = document.getElementById('pieChartContent');
//pieChartContent.innerHTML = ' ';
//$('#pieChartContent').append('<canvas id="canvas" width="650px" height="350px"><canvas>');
//ctx = $("#canvas").get(0).getContext("2d");
var ctx = document.getElementById("canvas").getContext("2d");
var lineChart = new Chart(ctx).Line(lineChartData, {
bezierCurve: true,
chartArea: { width: '62%' },
responsive: true,
pointDotRadius: 10,
scaleShowVerticalLines: false,
scaleGridLineColor: 'black'
});
}
function OnErrorCall_(repo) {
//alert(repo);
}
});
//});
</script>
C#code
--------
[WebMethod(EnableSession = true)]
public static List<object> getLineChartDataload()
{
List<object> iData = new List<object>();
List<string> labels = new List<string>();
string advertiserid = HttpContext.Current.Session["AccountID"].ToString();
if (!string.IsNullOrEmpty(advertiserid))
{
// string StartDate = DateTime.Now.AddDays(-180).ToString("yyyy-MM-dd");
string StartDate = DateTime.Now.AddDays(-60).ToString("yyyy-MM-dd");
string EndDate = DateTime.Now.ToString("yyyy-MM-dd");
string strcampaignid = string.Empty;
DataTable dt = new DataTable();
int i = 0;
chatBL objcampid = new chatBL();
string query = "select distinct top 3 Campaignid,CampaignName from campaign where advertiserid='" + advertiserid + "' order by CampaignName";
dt = objcampid.commonFuntionGetData2(query);
foreach (DataRow drow in dt.Rows)
{
strcampaignid += drow["Campaignid"].ToString() + ",";
}
if (!string.IsNullOrEmpty(strcampaignid))
{
strcampaignid = strcampaignid.Substring(0, strcampaignid.Length - 1);
}
string[] campaignid = strcampaignid.Split(',');
//First get distinct Month Name for select Year.
// string query1 = "select top 10 cast(createddatetime as date) as month_name from advertiser where CurrentBal>0 order by CurrentBal";
//query1 += " ";
// query1 += " order by month_number;";
foreach (string strcamp in campaignid)
{
if (i == 0)
{
chatBL objblabel = new chatBL();
// DataTable dtLabels = objblabel.Topupmonthly("5E8EF1E9-67BF-489C-84CB-AFF0BB0FE707", "2015-09-18", "2016-02-25", "months");
DataTable dtLabels = objblabel.Topupmonthly2(strcamp, StartDate, EndDate, "months");
foreach (DataRow drow in dtLabels.Rows)
{
labels.Add(drow["InsDateTime"].ToString().Substring(2, 7));
}
iData.Add(labels);
}
// string query_DataSet_1 = "select top 10 CurrentBal from advertiser where CurrentBal>0 order by CurrentBal";
//query_DataSet_1 += " (orders_quantity) as total_quantity from mobile_sales ";
//query_DataSet_1 += " where YEAR(orders_date)='" + year + "' and mobile_id='" + mobileId_one + "' ";
//query_DataSet_1 += " group by month(orders_date) ";
//query_DataSet_1 += " order by month_number ";
chatBL objbl = new chatBL();
DataTable dtDataItemsSets_1 = objbl.Topupmonthly2(strcamp, StartDate, EndDate, "months");
List<double> lst_dataItem_1 = new List<double>();
foreach (DataRow dr in dtDataItemsSets_1.Rows)
{
lst_dataItem_1.Add(Convert.ToDouble(dr["CPACOUNT"].ToString()));
}
iData.Add(lst_dataItem_1);
//string query_DataSet_2 = "select top 10 Totalspent from advertiser where CurrentBal>0 order by CurrentBal";
//query_DataSet_2 += " (orders_quantity) as total_quantity from mobile_sales ";
//query_DataSet_2 += " where YEAR(orders_date)='" + year + "' and mobile_id='" + mobileId_two + "' ";
//query_DataSet_2 += " group by month(orders_date) ";
//query_DataSet_2 += " order by month_number ";
//chatBL objbl1 = new chatBL();
//DataTable dtDataItemsSets_2 = objbl1.Topupmonthly("5E8EF1E9-67BF-489C-84CB-AFF0BB0FE707", "2015-09-18", "2016-02-25", "months");
//List<double> lst_dataItem_2 = new List<double>();
//foreach (DataRow dr in dtDataItemsSets_2.Rows)
//{
// lst_dataItem_2.Add(Convert.ToDouble(dr["CPACOUNT"].ToString()));
//}
//iData.Add(lst_dataItem_2);
i = i + 1;
}
}
return iData;
}