Cost of arcgis series#

# Name: CostBackLink_Ex_02.py # Description: Defines the neighbor that is the next cell on # the least accumulative cost path to the nearest # source. Syntax CostBackLink (in_source_data, in_cost_raster, ) Parameter See Analysis environments and Spatial Analyst for additional details on the geoprocessing environments that apply to this tool. The Maximum distance is specified in the same cost units as those on the cost raster.ДЇor the output distance raster, the least-cost distance (or minimum accumulative cost distance) of a cell to a set of source locations is the lower bound of the least-cost distances from the cell to all source locations. These cell locations will be assigned NoData on all outputs (distance, allocation, and back link) rasters. The source cells that are masked will not be considered in the computations. When a mask has been defined in the Raster Analysis window and the cells to be masked will mask a source, the calculations will occur on the remaining source cells. If a Mask has been set in the environment, all masked cells will be treated as NoData values. To get a cost distance surface for the entire extent, choose the Union of Inputs option on the output Extent environment settings. If the input source data and the cost raster are different extents, the default output extent is the intersection of the two. Any cell location that is assigned NoData on the input cost surface will receive NoData on all output rasters (cost distance, allocation, and back link). Alternatively, you could select a small enough cell size to capture the appropriate amount of detail from the input features.Д¬ell locations with NoData in the Input cost raster act as barriers in the cost surface tools. To avoid this situation, as an intermediate step, you could rasterize the input features directly with the Polygon to Raster tool and set a Priority field, and use the resulting output as input to the Distance tool.

Cost of arcgis series#

For example, if your sources are a series of small polygons, such as building footprints, that are small relative to the output cell size, it is possible that only a few of them will fall under the centers of the output raster cells, seemingly causing most of the others to be lost in the analysis. This means that data not located at the center of the cell will not be included in the intermediate rasterized source output, and so will not be represented in the distance calculations. The internal rasterization process employs the same default Cell assignment type method as the Polygon to Raster tool, which is CELL_CENTER. When using polygon feature data for the input source data, care must be taken with how the output cell size is handled when it is coarse, relative to the detail present in the input. By default, the resolution will be set to the resolution of the input cost raster. The resolution of the raster can be controlled with the Cell Size environment. When the input source data is a feature class, the source locations are converted internally to a raster before performing the analysis. A source raster can be easily created using the extraction tools. The value 0 is considered a legitimate source. Cells that have NoData values are not included in the source set. When the input source data is a raster, the set of source cells consists of all cells in the source raster that have valid values. The input source data can be a feature class or raster. Learn more about how Cost distance tools work Illustration Cost_BackLink = CostBacklink(Source_Ras, Cost_Ras) Usage Defines the neighbor that is the next cell on the least accumulative cost path to the nearest source.