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Discrete Spatial variables 2. Create the 1 m buffer around the linear features 1, 2, 3, and 4 and 0.5 m buffer around the linear features 5, 6, 7, and 8 at the same time, using the available GIS software from your GIS Lab, based on the linear feature map illustrated. 1.3.3. Spatial pattern and neighborhood of Areal Features Here we will learn about spatial patterns and neighbourhoods of aeral features. Especially, how to measure the distance among aeral features, how to create a buffer polygon or polygons from aeral features and how to create proximal polygons from the aeral features. Only pictures can be viewed in the <strong>PDF</strong> version! For Flash etc. see online version. Only screenshots of animations will be displayed. [link] Example of minimum distance calculation from the areal features The distance value of each cell is not illustrated for the clarity of presentation. The euclidean distance is applied in a similar way to the distance calculation for point and linear features. Then the grid cells are allocated to the properties of areal features based on the nearest proximity distance between the cell and areal feature. The result should be similar to the following. http://www.gitta.info - Version from: 5.5.2010 22
Discrete Spatial variables The result can be represented as vector or object mode as the following example. Example of buffering areal features Buffer polygon or polygons can be created by using a constant buffer distance or variable buffer distance around the specified input areal feature. http://www.gitta.info - Version from: 5.5.2010 23
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