Click the spatial adjustment menu point to adjustment methods then click a transformation method.
Rubber sheet transformation in gis.
An affine transformation can differentially scale the data skew it rotate it and translate it.
Esri s arcgis 8 3 has the capability of rubbersheeting vector data and arcmap 9 2 may also rubber sheet raster layers.
Two point displacement links define the origin and target location of the features you are transforming.
In the modify features pane transform includes linear and natural neighbor interpolation methods for rubber sheeting features.
See about spatial adjustment rubbersheeting for more details.
Historical maps rubber sheet transformation gis landscape visualization 1.
Click the options button.
Many times these coordinates are obtained by doing field surveys collecting coordinates with a gps device for few easily identifiable features.
Linear this method creates a quick tin surface but does not really take into account the neighborhood.
Affine similarity and projective.
Click either the natural neighbor or linear method and click ok.
By default arcmap supports three types of transformations.
The graphic below illustrates the four possible changes.
The affine transformation function is.
The key difference between rubbersheeting and transformations however is that the distance features move depends on their proximity to a link and the length of that link.
You can transform features that are visible and editable by selecting them or transform all features on specified layers.
Georeferencing is the process of assigning real world coordinates to each pixel of the raster.
Most gis projects require georeferencing some raster data.
It is slightly faster and produces good results when you have many rubbersheet links spread uniformly over the data.
Introduction historical maps are precious materials which show various spatial distribution of land use streets and so on of the historical importance at the time the maps were produced.
X ax by c y dx ey f.
Similar to transformations displacement links are used in rubbersheeting to determine where features are moved.
Autocad s land desktop allows a user to rubber sheet raster data.
Rubbersheeting is typically used to align two or more layers.
The method parameter determines the interpolation method used to create the temporary tins in rubbersheeting.
Click the spatial adjustment menu and click options.
Click the adjustment methods drop down arrow and click rubbersheet.
This process moves the features of a layer using a piecewise transformation that preserves straight lines.
Autodesk s autocad map 3d 1 and autocad civil 3d which includes most of autocad map 3d s functionality allows a user to rubbersheet vector data and autodesk s raster design an add in product for autocad based.
Georeferencing topo sheets and scanned maps.
