| Description | This function calls the Contour annotation functionality. The user can click on the viewer div i.e. Panorama-Viewer, and draw Contour annotations using mouse events. A contour is a polygon drawn line the Freehand annoration. First mouse-click registers the first point of the Contour polygon, and the next mouse-click registers the final point of the polygon. |
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| Syntax | PanoramaAPI.contourAnnotation() |
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| Parameters | NA |
| Returns | NA |




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