Questions tagged [sequential]

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Field calculating sequential numbers based on geographic location (WE_NS Diagonal) in ArcMap [closed]

I am using ArcMap. I am looking for a script that I can use to field calculate sequential numbers based on the geographic location of the center of polygons. For example, let's say I have 50 parcels ...
7
votes
2answers
101 views

Creating field based on the sequential indicator in QGIS

I have a points layer in QGIS that is organised by time, with a column called "Diff" that has either 1 or 0. The 1 marks a point where there is a jump in time, the 0 marks where nothing has ...
2
votes
0answers
19 views

Adding unique value to an attribute table starting at a known value

I have an attribute table with a unique values under polygon ID. Last number is 679. I am adding new 100 new attributes to this table and want to give these rows unique identifiers starting at 680. ...
3
votes
1answer
56 views

Field calculate sequential values, but assign same number to duplicates

I work at a company where I have to constantly update parcel maps and generate tables representing landowner parcels. I have figured out how to sort the landowner name field in the table ...
2
votes
1answer
419 views

Find order of points along polyline

I have a points layer with random points located along a route (polyline layer). I was wondering if there is a simple way to give a sequence number to each point in the order they show up along the ...
1
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0answers
173 views

Making sequential number's not based on Object ID number

I have a question about sequential numbering. I found a script (i'll put it below), which allows me to make a sequential numbering based on OID and thats good. But what i need is different structure ...
2
votes
2answers
642 views

Ordering data in sequential order based on coordinates

I created a fishnet grid and need to give the individual polygons ID values based on their associated property names and location relative to each other. I was able to achieve the above results with ...
1
vote
1answer
255 views

QGIS Field Sequential Numbering with ordering rule from SW to NE

How could I use the $Rownum tool to get sequential number for a field to make sure the southernmost and westernmost point is 1 and the following numbers follow this rule set (where South is first and ...
0
votes
1answer
413 views

Generating sequence of numbers based on existing attribute and spatial configuration of polygons using ArcGIS Desktop?

I have come across a very specific problem and I'm sure there must be a way to get around it with Python in ArcGIS, but can't figure it out on my own. The situation is as follows: The initial data ...
1
vote
2answers
2k views

QGIS field calculator: Change start value for @row_number

So I can use the @row_number function to number sequentially but I want my start value to be 27, not 1. Is there some bit of code i need to use, where I can change the start value?
1
vote
0answers
146 views

Adding sequence value on attribute table when clicking point in QGIS?

I have a point shapefiles that has a specific column name "Record". In QGIS I want to add a sequence value in this column from 1, 2, 3,... so on until the last when I click each point one by one (the ...
3
votes
1answer
224 views

Calculating sequential values in ArcGIS Desktop?

Previous posts (such as Adding automated values to attribute field?) answer how to calculate sequential values in an attribute table. The posts all seem to rely on the process described in this ESRI ...