Extent.contains(geometry) Issue

Question

I have a case one big polygon includes a polyline, but the code extent.contains(geometry) returns false.
I checked Xmin, Xmax, Ymin, Ymax for both object. polyline is inside of the polygon. 
I do notice that the polygon's Spatial Reference wkid is 102100, the polyline has two SR, wkid 102100 and latestwkid 3857.
Does extent.contains(geometry) check the SR?
If so, what should I do for the case?

Thanks,
Tony

tonylife · Answer

esri/geometry/Extent::contains take a point or extent. Per the docs:

https://developers.arcgis.com/en/javascript/jsapi/extent.html#contains

You could use the extent of your line but not the line itself.

Thanks for your information.

I do try the following area._extent.contains(graphic.geometry._extent).
The area's extent is xmin: -9788742, ymin: 5311210, xmax: -9788670, ymax: 5311361
The graphic is a polyline, it's extent is  xmin: -9788713, ymin: 5311291, xmax: -9788712, ymax: 5311317
The result is still FALSE. not sure why

Thanks,
Tony

JeffJacobson · Answer

esri/geometry/Extent::contains take a point or extent. Per the docs:

https://developers.arcgis.com/en/javascript/jsapi/extent.html#contains

You could use the extent of your line but not the line itself.

Does this work?* Loop through each point in the polyline and check to see if it is contained in the extent.
* If one of the points is outside of the extent, you can break out of the loop. You know the answer is false.
* If all of the points are contained in the extent, then the answer is true.

derekswingley1 · Answer

esri/geometry/Extent::contains take a point or extent. Per the docs:
Input Parameters:
<Geometry> geometry Required Can be a Point or Extent.

https://developers.arcgis.com/en/javascript/jsapi/extent.html#contains

You could use the extent of your line but not the line itself.