传单地图 - 底部几行未使用本地图块加载到地图中
我是传单新手,正在尝试掌握基础知识。当我使用自定义图块构建第一张地图时,我发现底行(或几行)在任何缩放级别都根本无法加载。在浏览器中查看时,它们根本没有列在源代码中,并且滚动到地图底部不会显示任何控制台错误。如果我确实滚动到地图的左侧或右侧,我确实会收到错误消息,告诉我Leaflet正在尝试 em> 加载不存在的图像。但当我尝试滚动到地图的底部时,我没有收到任何错误。
示例错误:
GET file:///C:/Users/carso/Documents/Programming/MapProject/Web/MapImages/0/-1/0.jpg net::ERR_FILE_NOT_FOUND
网上的许多答案建议您需要包含传单 CSS 文件,设置“.leaflet-container”的一些大小属性,或者可能调用 map.invalidateSize()。我拥有这一切,但没有运气。
我也没有任何带有“text-align”等属性的 HTML 元素集,如 这篇文章描述了。我的代码非常简单。
请耐心等待我详细了解我现在如何进行设置...
对于此测试,我只有 4 个 jpg 文件,每个文件都是白色背景,黑色文本图像的坐标。它们位于这样的文件夹中:
/0/0/0.jpg
/0/0/1.jpg
/0/1/0.jpg
/0/1/1.jpg
我的理解是这些文件夹位于: /(ZoomLevel )/(ColumnIndex)/(RowIndex).jpg
目前,显示地图中最上面的两个图像(“/0/0/0.jpg”和“/0/1/0.jpg”)。像这样:
以下是我的来源:
HTML:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Map Test</title>
<link rel="stylesheet" href="main.css">
<link rel="stylesheet" href="https://unpkg.com/[email protected]/dist/leaflet.css"
integrity="sha512-xodZBNTC5n17Xt2atTPuE1HxjVMSvLVW9ocqUKLsCC5CXdbqCmblAshOMAS6/keqq/sMZMZ19scR4PsZChSR7A=="
crossorigin=""/>
<script src="https://unpkg.com/[email protected]/dist/leaflet.js"
integrity="sha512-XQoYMqMTK8LvdxXYG3nZ448hOEQiglfqkJs1NOQV44cWnUrBc8PkAOcXy20w0vlaXaVUearIOBhiXZ5V3ynxwA=="
crossorigin=""></script>
</head>
<body>
<div id="map"></div>
<script src="app.js"></script>
</body>
</html>
CSS:
#map {
position: absolute;
width:100%;
height: 100%;
}
.leaflet-container {
width: 100vw;
height: 100vh;
}
JavaScript:
var map = L.map('map').setView([0,0], 0);
L.tileLayer('./MapImages/{z}/{x}/{y}.jpg', {
noWrap: true,
tileSize: 256,
minZoom: 0,
maxZoom: 0,
attribution: <a>Nobody</a>',
}).addTo(map)
I am new to leaflet and am trying to get a handle on the basics. As I was building my first map with custom tiles, I found that the bottom row (or few rows), at any zoom level, were not loading at all. They are not listed at all in the source code when viewed in a browser, and scrolling past the bottom of the map does not show any console errors. If I do scroll past the left or right of the map though, I do get errors telling me that Leaflet is attempting to load images that do not exist. But I get no errors when trying to scroll past the bottom of the map.
Sample error:
GET file:///C:/Users/carso/Documents/Programming/MapProject/Web/MapImages/0/-1/0.jpg net::ERR_FILE_NOT_FOUND
Many answers online suggest that you need to include the leaflet CSS files, settings some size attributes of ".leaflet-container", or potentially call map.invalidateSize(). I have all both of these with no luck.
I also do not have any HTML elements with any attributes like "text-align" set, as this post describes. My code is very bare-bones.
Please bear with me for the details of exactly how I have things set up right now ...
For this test, I simply have 4 jpg files, each of which is just a white background with black text of the coordinates of the image. They are in folders like this:
/0/0/0.jpg
/0/0/1.jpg
/0/1/0.jpg
/0/1/1.jpg
My understanding is that those folders go: /(ZoomLevel)/(ColumnIndex)/(RowIndex).jpg
Currently, the top two images in the map are displayed ("/0/0/0.jpg" and "/0/1/0.jpg"). Like this:
Here are my sources:
HTML:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Map Test</title>
<link rel="stylesheet" href="main.css">
<link rel="stylesheet" href="https://unpkg.com/[email protected]/dist/leaflet.css"
integrity="sha512-xodZBNTC5n17Xt2atTPuE1HxjVMSvLVW9ocqUKLsCC5CXdbqCmblAshOMAS6/keqq/sMZMZ19scR4PsZChSR7A=="
crossorigin=""/>
<script src="https://unpkg.com/[email protected]/dist/leaflet.js"
integrity="sha512-XQoYMqMTK8LvdxXYG3nZ448hOEQiglfqkJs1NOQV44cWnUrBc8PkAOcXy20w0vlaXaVUearIOBhiXZ5V3ynxwA=="
crossorigin=""></script>
</head>
<body>
<div id="map"></div>
<script src="app.js"></script>
</body>
</html>
CSS:
#map {
position: absolute;
width:100%;
height: 100%;
}
.leaflet-container {
width: 100vw;
height: 100vh;
}
JavaScript:
var map = L.map('map').setView([0,0], 0);
L.tileLayer('./MapImages/{z}/{x}/{y}.jpg', {
noWrap: true,
tileSize: 256,
minZoom: 0,
maxZoom: 0,
attribution: <a>Nobody</a>',
}).addTo(map)
如果你对这篇内容有疑问,欢迎到本站社区发帖提问 参与讨论,获取更多帮助,或者扫码二维码加入 Web 技术交流群。

绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱,如果其他用户或者作者回复了您的评论,将不能在第一时间通知您!
发布评论
评论(1)
我有同样的问题,这对我有用。
我认为你应该在创建后更新“地图大小”。我尝试不使用
setTimeout
但它没有执行任何操作。I have kind of the same issue, this worked for me.
I think that you should update the "map size" after it's creation. I tried without the
setTimeout
but it doesn't do anything.