座標點的重疊顯示
此範例示範如何在地圖上控制座標點 Feature 的重疊顯示，包含以下功能：
- 全局樣式設定：使用
map.data.setGlobalStyle()方法統一變更所有座標點的重疊設定 - 恢復預設樣式：使用
map.data.revertGlobalStyle()方法恢復全局預設樣式
info
詳細使用說明請參考「資料層」。
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>座標點的重疊顯示</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
<script src="https://kw3dmap.localking.com.tw/openapi/loader/mapPlus-1.3.9.loader.js" crossorigin="anonymous" referrerpolicy="origin"></script>
<!-- Bootstrap CDN -->
<link
href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.1/dist/css/bootstrap.min.css"
rel="stylesheet"
integrity="sha384-4bw+/aepP/YC94hEpVNVgiZdgIC5+VKNBQNGCHeKRQN+PtmoHDEXuppvnDJzQIu9"
crossorigin="anonymous"
/>
<link
rel="stylesheet"
href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.10.5/font/bootstrap-icons.css"
/>
<script
src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.1/dist/js/bootstrap.bundle.min.js"
integrity="sha384-HwwvtgBNo3bZJJLYd8oVXjrBZt8cqVSpeBNS5n7C8IVInixGAoxmnlMuBnhbgrkm"
crossorigin="anonymous"
></script>
<style>
body { margin: 0; padding: 0; }
#map { width: 100vw; height: 100vh; }
#toolbar {
position: absolute;
top: 16px;
right: 16px;
width: fit-content;
height: fit-content;
}
</style>
</head>
<body>
<div id="map"></div>
<aside
id="toolbar"
class="d-flex flex-column align-items-center gap-3 bg-white p-2 pb-3 rounded-2 shadow"
>
<!-- 商標 -->
<div class="pb-2 border-bottom border-secondary-subtle">
<img
src="https://kw3dmap.autoking.com.tw/kingway-logo.png"
alt="Kingway map"
width="44"
height="44"
/>
</div>
<div>
<input
type="checkbox"
class="btn-check"
id="toggleBtnSetStyle"
autocomplete="off"
/>
<label
class="btn btn-outline-primary"
for="toggleBtnSetStyle"
data-bs-toggle="tooltip"
data-bs-placement="left"
data-bs-title="變更所有座標點重疊與否"
>
<i class="bi bi-gear-fill"></i>
</label>
</div>
</aside>
<script type="module">
const map = await new mapPlus(document.getElementById("map"), {
accessKey: "get_your_key", // 聯絡勤崴國際，取得專屬key
accessToken: "get_your_token", // 聯絡勤崴國際，取得專屬token
style: 'https://kw3dmap.localking.com.tw/openapi/map/kwmap.etxt', // 樣式
center: { lng: 121.52449353370274, lat: 25.026540436497626 },
zoom: 15.8,
});
// Bootstrap 提示訊息 初始化
const tooltipList = document.querySelectorAll('[data-bs-toggle="tooltip"]');
const tooltipInit = [...tooltipList].map(
(tooltip) => new bootstrap.Tooltip(tooltip)
);
map.data.add({
geometry: new mapPlus.Data.Point({
lng: 121.52445832858763,
lat: 25.026526634176872,
}),
properties: {
textField: "Point 1",
textSize: 12,
id: 1,
},
});
map.data.add({
geometry: new mapPlus.Data.Point({
lng: 121.52485832858763,
lat: 25.026526634176872,
}),
properties: {
textField: "Point 2",
textSize: 12,
id: 2,
},
});
const toggleStyle = (checkboxElement) => {
if (checkboxElement.getAttribute("checked")) {
/* ══════════════════════════════════════════════════════════════════════════
* 全局樣式設定：
- 可調整 iconOverlap 及 textOverlap 來改變座標點之間是否可重疊顯示。
══════════════════════════════════════════════════════════════════════════ */
// 點擊第一下，將所有座標點設置為不可互相重疊顯示
map.data.setGlobalStyle({
// always 為可互相重疊，never 為不可互相重疊顯示
iconOverlap: "never",
textOverlap: "never",
});
checkboxElement.removeAttribute("checked");
} else {
// 點擊第二下，恢復全部座標點可互相重疊顯示
map.data.revertGlobalStyle();
checkboxElement.setAttribute("checked", true);
}
};
const toggleBtnSetStyle = document.getElementById("toggleBtnSetStyle");
toggleBtnSetStyle.setAttribute("checked", true);
toggleBtnSetStyle.addEventListener("click", () => {
toggleStyle(toggleBtnSetStyle);
});
</script>
</body>
</html>
<script src="https://kw3dmap.localking.com.tw/openapi/loader/mapPlus-1.3.9.loader.js" crossorigin="anonymous" referrerpolicy="origin"></script>
<script
src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.1/dist/js/bootstrap.bundle.min.js"
integrity="sha384-HwwvtgBNo3bZJJLYd8oVXjrBZt8cqVSpeBNS5n7C8IVInixGAoxmnlMuBnhbgrkm"
crossorigin="anonymous"
></script>
<script type="module">
const map = await new mapPlus(document.getElementById("map"), {
accessKey: "get_your_key", // 聯絡勤崴國際，取得專屬key
accessToken: "get_your_token", // 聯絡勤崴國際，取得專屬token
style: 'https://kw3dmap.localking.com.tw/openapi/map/kwmap.etxt', // 樣式
center: { lng: 121.52449353370274, lat: 25.026540436497626 },
zoom: 15.8,
});
// Bootstrap 提示訊息 初始化
const tooltipList = document.querySelectorAll('[data-bs-toggle="tooltip"]');
const tooltipInit = [...tooltipList].map(
(tooltip) => new bootstrap.Tooltip(tooltip)
);
map.data.add({
geometry: new mapPlus.Data.Point({
lng: 121.52445832858763,
lat: 25.026526634176872,
}),
properties: {
textField: "Point 1",
textSize: 12,
id: 1,
},
});
map.data.add({
geometry: new mapPlus.Data.Point({
lng: 121.52485832858763,
lat: 25.026526634176872,
}),
properties: {
textField: "Point 2",
textSize: 12,
id: 2,
},
});
const toggleStyle = (checkboxElement) => {
if (checkboxElement.getAttribute("checked")) {
/* ══════════════════════════════════════════════════════════════════════════
* 全局樣式設定：
- 可調整 iconOverlap 及 textOverlap 來改變座標點之間是否可重疊顯示。
══════════════════════════════════════════════════════════════════════════ */
// 點擊第一下，將所有座標點設置為不可互相重疊顯示
map.data.setGlobalStyle({
// always 為可互相重疊，never 為不可互相重疊顯示
iconOverlap: "never",
textOverlap: "never",
});
checkboxElement.removeAttribute("checked");
} else {
// 點擊第二下，恢復全部座標點可互相重疊顯示
map.data.revertGlobalStyle();
checkboxElement.setAttribute("checked", true);
}
};
const toggleBtnSetStyle = document.getElementById("toggleBtnSetStyle");
toggleBtnSetStyle.setAttribute("checked", true);
toggleBtnSetStyle.addEventListener("click", () => {
toggleStyle(toggleBtnSetStyle);
});
</script>
<link
href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.1/dist/css/bootstrap.min.css"
rel="stylesheet"
integrity="sha384-4bw+/aepP/YC94hEpVNVgiZdgIC5+VKNBQNGCHeKRQN+PtmoHDEXuppvnDJzQIu9"
crossorigin="anonymous"
/>
<link
rel="stylesheet"
href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.10.5/font/bootstrap-icons.css"
/>
<style>
body { margin: 0; padding: 0; }
#map { width: 100vw; height: 100vh; }
#toolbar {
position: absolute;
top: 16px;
right: 16px;
width: fit-content;
height: fit-content;
}
</style>