The queryElevation() method does not return expected results when working with the ArcGIS API for JavaScript elevation sample.
上次发布: December 14, 2018ArcGIS API for JavaScript
漏洞 ID 编号
BUG-000118524
已提交
December 3, 2018
上次修改时间
June 5, 2024
适用范围
ArcGIS API for JavaScript
找到的版本
4.9
操作系统
Windows OS
操作系统版本
N/A
状态
Will Not Be Addressed
开发团队已考虑过该问题或请求,并决定不会解决该问题。 问题的“其他信息”部分可能包含进一步说明。
附加信息
ground.queryElevation() returns results calculated based on the highest resolution and ground.createSampler() creates an elevation sampler based on the terrain resolution currently loaded in the view. The reason why the 2 values in your app are different is because they use these 2 different resolutions of the terrain to calculate the z value.
If you want to control the resolution then use these methods on the elevation layer and pass in the demResolution that you want it to be calculated for (if you don't know a value, for highest precision results just use "finest-contiguous"). In your example I am changing the resolution for the queryElevation to be more coarse and then I get the same result: https://jsfiddle.net/cu8k5q02/1/
See demResolution option here: http://localhost/arcgis-js-sdk-4/build-artifacts/latest/api-reference/esri-layers-ElevationLayer.html#queryElevation and here: http://localhost/arcgis-js-sdk-4/build-artifacts/latest/api-reference/esri-layers-ElevationLayer.html#createElevationSampler
Feel free to reach back for more questions.