Qgis Rubber Sheeting

In cartography this is known as rubber sheeting because it treats the map as if it were made of rubber and the control points as if they were tacks pinning the historical document to a three dimensional surface like the globe.

Qgis rubber sheeting.

Rubber sheeting polygon collection into another using postgis. On the edit tab in the snapping group enable your snapping preferences. Rubber sheeting is a useful technique in historical gis where it is used to digitize and add old maps as feature layers in a modern gis. Before aerial photography arrived most maps were highly inaccurate by modern standards.

Rubber sheeting is commonly used after a transformation to further refine the alignment accuracy of the transformed features. Active 1 year 1 month ago. A few of our favorite haxx. In cartography rubbersheeting refers to the process by which a layer is distorted to allow it to be seamlessly joined to an adjacent geographic layer of matching imagery such as satellite imagery most commonly vector cartographic data which are digital maps.

Rubber sheeting may improve the value of such sources and make them easier to compare to modern maps. Ask question asked 6 years 1 month ago. For steps to transform features using affine or similarity transformation methods see transform features. Before proceeding with georeferencing in quantum gis we need to activate the appropriate plugins.