Google Earth KML中的文本重叠 [英] Text Overlay in Google Earth KML

问题描述

我想添加一个日期/时间，KML文件上次更新，以在Google地球中显示为空白，是否可以完成？

I would like to add a date/time that the KML file was last updated to be displayed as an overaly in Google Earth, is there anyway this could be done?

我将在KML文件中查看更新文本，然后显示在google earth中。

I would be looking at updating text in a KML file and then this being displayed in google earth.

非常感谢。

推荐答案

href =https://developers.google.com/chart/image/docs/gallery/dynamic_icons =nofollow> Google图表API 可以从文本动态创建图像，并将其用作屏幕叠加图像

One trick is using the Google Chart API to dynamically create images from text and using that as a screen overlay image in Google Earth.

示例：

<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2">
    <ScreenOverlay>
        <Icon>
            <href><![CDATA[http://chart.apis.google.com/chart?chst=d_text_outline&chld=FFBBBB|16|h|BB0000|b|Hello%20Word]]></href>
        </Icon>
        <overlayXY x="0.8" xunits="fraction" y="0.8" yunits="fraction"/>
        <screenXY x="0.8" xunits="fraction" y="0.8" yunits="fraction"/>
    </ScreenOverlay>
</kml>

Paleoglobe KML中使用了嵌入图像的屏幕叠加：
http://www.geology.sdsu.edu/kmlgeology/kmz/paleoglobe/paleogeography.kmz

A screen overlay with embedded images is used in the Paleoglobe KML: http://www.geology.sdsu.edu/kmlgeology/kmz/paleoglobe/paleogeography.kmz

有许多网站可以在您嵌入KMZ文件并从KML引用的标签上创建标签文字。

There are many websites that create images out of text for labels which you embed in a KMZ file and refer to from you KML.

此外，如果您希望文本在固定位置显示为地面上的标签，那么您可以使用GroundOverlay使用相同的技巧，或者只需创建一个名称（即显示在映射在该位置）和一个风格抑制图标。

Also, if you want text to appear as a label on the ground at a fixed location then you can use same trick with a GroundOverlay or simply create a Placemark with a name (which is shown on map at that location) and a Style suppressing the icon.

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