Tagged Questions
7
votes
2answers
102 views
Generating polygonal blocks using growing lines
We first generate a set of locations (i.e., points(x,y)), randomly. Then we assign for each point a number showing the angle of a line being centred at that point. The criteria for the length of lines ...
5
votes
1answer
285 views
Polar grids in ArcGIS
I am looking automate the creation of a polar grid shapefile (polygon). I am currently creating this in a many-step editing process, starting from a concentric buffer.
Here is how I think I should be ...
4
votes
1answer
787 views
How to create a polygon from other polygon boundaries?
I want to write an algorithm that creates a polygon inside a hole made by a set of other polygons. It's something like a flood fill and it's like the "boundary" tool in Autocad.
The image shows an ...
10
votes
4answers
586 views
Algorithm to calculate coverage + overlaps from a set of arcs
I have a shapefile containing arcs representing the path travelled by a truck spreading fertiliser onto a farm.
Let's say I know the spread width is 30m, i.e. the truck can spread fertiliser 15m ...
9
votes
6answers
1k views
How to find the boundary co-ordinates from a given set of co-ordinates
Given a set of coordinates, How do we find the boundary coordinates.
<== Figure 1
Given the coordinates in the above set, How can I get the coordinates on the red boundary. Boundary is the polygon ...
16
votes
1answer
3k views
How to divide a polygon into specific sizes using ArcGIS?
I have several thousand irregularly shaped polygons in a shapefile. I want to be able to split each polygon into three areas, and to specify what the size of those areas (they sum to the previous ...
