google maps api 3 - Hiding a Marker in StreetView when it wouldn't be visible in the real world -

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i'm working on google maps application (v.3) street view component. application takes position data collected mobile device , displays polyline on map , plays corresponding set of street view panoramas recreate user's path. part of this, displaying markers on panorama show path on next handful of steps.

this working fine @ stage of development. however, if marker behind/within building or around corner, being rendered such that, example, gives appearance user climbing side of building. determine if marker hidden , prevent rendering.

i notice when hovering on panorama, there seems kind of "wall detection" feature going on. haven't found way in documentation, there way detect these walls programmically? have been playing around number of markers show , other strategies work "okay", if possible, best solution.

thanks.


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