[英]show maximum labels in chart.js
我正在使用JavaScript創建一個項目。 在我的項目中,我正在集成google圖表,在我的圖表中,我只想顯示五個標簽。我不知道該怎么做。以下是代碼:
var N = 10;
// Array filled with N values at '0'
var zero_array = [];
for (i = 0; i < N; i++)
zero_array.push(0);
// The data of the chart, describe the differents sets of data you want with points, colors...
var data = {
labels: zero_array,
datasets: [
{
showXLabels: 5,
label: zero_array, // Name of the line
data: zero_array, // data to represent
// The following makes the line way less ugly
fillColor: "rgba(151,187,205,0.2)",
strokeColor: "rgba(151,187,205,1)",
pointColor: "rgba(151,187,205,1)",
pointStrokeColor: "#fff",
pointHighlightFill: "#fff",
pointHighlightStroke: "rgba(151,187,205,1)",
}
]
};
// We wait for everything to be loaded
window.onload = function main() {
// Get the context of the canvas
var ctx = document.getElementById("line_example").getContext("2d");
// Create the Chart object
var line_example_chart = new Chart(ctx).Line(data);
// Used for the labels on the X axis
var label_idx = 1;
// Function to execute to remove then add a new random value to the chart
function rand_value() {
// Generate a random integer
var rand_val = Math.floor(Math.random() * 100);
// Remove the point at the far left of the chart
line_example_chart.removeData();
// Add the random value at the far right of the chart
line_example_chart.addData([rand_val], label_idx++);
}
// Run rand_value() every 2 seconds
window.setInterval(rand_value, 2000);
}
插頭鏈接: https ://plnkr.co/edit/fat6hRS4lFnAEjoiSORW ? p = preview
請幫忙。
請更新以下行,您在圖表中只能看到5個節點
var N = 5;
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