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當使用靜態數據,圓環圖顯示完美,例如:chart.js之甜甜圈不計算JSON數據正確
$.ajax({
url: 'includes/stats.php?show',
dataType: 'json',
success: function (response)
{
console.log(response['CARS']); //I see 2
console.log(response['MOTORS']); //I see 0
console.log(response['BOATS']); //I see 0
var autoData = [
{
value: 2,
color: "#4286f4",
highlight: "#4d6fa5",
label: "Cars"
},
{
value: 0,
color: "#3fe276",
highlight: "#51a36d",
label: "Motor Homes"
},
{
value: 0,
color: "#bde234",
highlight: "#87964e",
label: "Boats"
}
];
var ctx = document.getElementById("onChart").getContext("2d");
var myNewChart = new Chart(ctx).Doughnut(autoData);
}
});
我做的JSON調用,但回調,我填AUTODATA變量與靜態數據[2,0,0],這樣的圖表出現並計算100%的「汽車」,因爲它是唯一的一些值(2),其他人是0 ... 當我這樣做:
$.ajax({
url: 'includes/stats.php?show',
dataType: 'json',
success: function (response)
{
console.log(response['CARS']); //I see 2
console.log(response['MOTORS']); //I see 0
console.log(response['BOATS']); //I see 0
var autoData = [
{
value: response['CARS'],
color: "#4286f4",
highlight: "#4d6fa5",
label: "Cars"
},
{
value: response['MOTORS'],
color: "#3fe276",
highlight: "#51a36d",
label: "Motor Homes"
},
{
value: response['BOATS'],
color: "#bde234",
highlight: "#87964e",
label: "Boats"
}
];
var ctx = document.getElementById("onChart").getContext("2d");
var myNewChart = new Chart(ctx).Doughnut(autoData);
}
});
我得到的是什麼看起來像2%的圖表填充...這裏發生了什麼?
請嘗試並查看此鏈接是否有幫助。 https://stackoverflow.com/questions/25665019/chart-js-doughnut-chart-not-properly-work – user8271644
我已經看到了這個問題,我試着接受解決方案,但沒有成功(把數據變量作爲全局變量) ...現在我回到了問你的問題,我看到了一個評論,一個人說他使用PHP中的「intval」來創建數組...我試過了,它工作正常! :)我會在這裏回答這個問題。謝謝。 – user2864778