What is cost weighted distance?
Cost weighted distance analysis is to find out the accumulative cost of each cell to its nearest source. So, in cost weighted distance analysis, the accumulative cost includes not only the shortest distance from cell to the nearest source but also other costs, like time.
How is cost distance calculated?
Cost Distance gives the distance to the nearest source for each cell in the raster, based on the least-accumulative cost over a cost surface. Cost Back Link gives the neighbor that is the next cell on the least-accumulative cost path to the nearest source.
What is a backlink raster?
The backlink raster contains values 0 through 8, which define the direction or identify the next neighboring cell (the succeeding cell) along the least accumulative cost path from a cell to reach its least-cost source.
What is a least cost path?
The least-cost path travels from the destination to the source. This path is one cell wide, travels from the destination to the source, and is guaranteed to be the cheapest route relative to the cost units defined by the original cost raster that was input into the weighted-distance tool.
What is the minimum cost path?
Understanding the Problem → Output the minimum cost associated with the path from source to destination. You can traverse from a cell to its adjacent right cell, adjacent down the cell and diagonally lower-right cell. Here it is clear the Minimum Cost Path is 5->2->0->6->8 with cost 21.
What is cost surface analysis?
In these analyses, cost surfaces are created for each of the factors in the overall cost of what needs to be accomplished. Varying factors could influence the cost, depending on the analysis. These cost surfaces could include slope, land ownership, environmental effects, and land value.
What is GIS Surface cost?
A cost surface, or cost grid, is a raster grid in which the value in each cell is the cost that a particular activity or object would be in that cell. It can also be an indexed value based on costliness. Costs could be measured monetarily or in other ways such as amount of time.
What is route cost analysis?
Cost path analysis is a procedure or tool in Geographic information systems for finding an optimal route between two points through continuous space that minimizes costs. Cost Path is one of a series of algorithms and tools that analyze such costs, collectively known as Cost Distance Analysis.
Which is best least cost path or shortest path?
Least-cost path analysis. If the shortest path between any two points is a straight line, then the least-cost path is the path of least resistance.
How does the cost distance tool work?
The output from the Cost Distance tool records the accumulated cost of getting from each cell to the nearest source. For example, consider the following source locations, identified as values 1 and 2 in the diagram: The accumulated least costly way of getting from source cell 1 (dark orange) to the destination (the school icon) is 10.5.
What is cost distance analysis in economics?
Understanding cost distance analysis. The cost distance tools are similar to Euclidean tools, but instead of calculating the actual distance from one location to another, the cost distance tools determine the shortest weighted distance (or accumulated travel cost) from each cell to the nearest source location.
How to calculate the weighted average inventory costing method?
The weighted average inventory costing method is calculated by the following formula: Weighted average = (Q1*P1 + Q2*P2 + Qn*Pn) / (Q1 + Q2 + Qn) Inventory transactions leaving the inventory issues. This includes sales orders, inventory journals, and production orders, occur at an estimated cost price on the posting date.
What is the difference between Euclidean and cost distance tools?
The cost distance tools are similar to Euclidean tools, but instead of calculating the actual distance from one location to another, the cost distance tools determine the shortest weighted distance (or accumulated travel cost) from each cell to the nearest source location. These tools apply distance in cost units, not in geographic units.