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纬度高度问题

[英]Wikitude Altitude Issue

原文 2012-11-20 09:51:54 0 1 android/ ios/ gps/ wikitude

I am gonna start using Wikitude SDK and have some doubts about its working... I was wondering how the Wikitude's Architect Engine handles the Augmentation of POIs? 我将开始使用Wikitude SDK，并对它的工作方式有疑问。我想知道Wikitude的Architect Engine如何处理POI的增强？ For example the Point of interest takes three values ie latitude,longitude and altitude of the poi..which I assume is in meters above sea level. 例如，兴趣点取三个值，即poi的纬度，经度和海拔高度。我认为这是高于海平面的米数。 How does Wikitude handles the augmentation according to the altitude. Wikitude如何根据海拔高度处理增幅。 One scenario is I am holding the Phone when I am at ground...the augmentation in this case would be normal but what if I am at a top of building(around 300m above ground) will Wikitude handle the rise in altitude itself??(which I think it will not because there's no sensor on the phone to measure the height above ground except the gps value which is not that much accurate) How can this scenario be achieved? 一种情况是我在地面上时握着电话……在这种情况下，增强是正常的，但是如果我在建筑物的顶部（离地面约300m），Wikitude会自行处理海拔升高吗？（我认为这不是因为电话上没有传感器来测量地面以上的高度，只是gps值不太准确），如何实现这种情况？ Will the POIs need a different Altitude value? POI是否需要其他高度值？

Thanks in Advance 提前致谢

1 个解决方案

Altitude is automatically taken into the calculation of the augmentation. 海拔高度会自动计入扩增的计算中。 There are a few things you should consider. 您应该考虑几件事。 Altitude information is only used when the accuracy of the GPS is high enough. 仅当GPS的精度足够高时才使用高度信息。 This guarantees that the altitude will be reasonable accurate. 这保证了高度将是合理准确的。 However GPS altitude information has never the highest accuracy and you might see differences for POIs close to the user. 但是，GPS高度信息永远不会具有最高的准确性，您可能会看到接近用户的POI有所不同。

If you know the altitude more accurate then GPS, eg for predefined places you can use the injectLocation methods to set the altitude. 如果您知道海拔高度比GPS更准确，例如对于预定义的位置，则可以使用injectLocation方法设置海拔高度。