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Questions tagged [midpoint]

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16 votes
1 answer
1k views

Splitting polygons at midpoint using ArcPy

I'm attempting to split around 4000 polygons at their midpoint, perpendicular to their longest axis (ie across the width at the midpoint), as in the diagram below. Ideally, I'd like to do this ...
Matt's user avatar
  • 171
12 votes
7 answers
19k views

Finding middle point (midpoint) of line in QGIS

How can I locate the coordinates of the middle point (midpoint) of a line feature in QGIS?
Alex Yee's user avatar
  • 121
8 votes
4 answers
5k views

Creating mid point from line layer in QGIS

In QGIS I am trying to create a new point layer based on the mid point of a line layer (and keep all the feature attributes in the table). For example, one line feature becomes one point, located on ...
user107128's user avatar
5 votes
1 answer
227 views

Getting x-coordinate of midpoint from line layer

I Need to get a midpoint from a line layer. Property layer -> Style -> Simple symbol -> Generator geometry (line) I have code #1: x(line_interpolate_point($geometry, $length / 2) this code ...
ILya Kuzmin's user avatar
4 votes
1 answer
272 views

Geting midpoint of MultiLine in QGIS

I have a line(multiline) layer in QGIS 3.22. I need to place a point in the middle. I've tried using the algorithms: "interpolate point on line" and "points along geometry", by ...
david's user avatar
  • 113
3 votes
1 answer
153 views

Is there an equivalent to the "Midpoint" tool in ArcGIS in QGIS?

I have a geopackage layer in QGIS which contains block outlines for parcels of land. They have been digitised with a gap between each block but the edges of adjacent polygons should actually share an ...
CCJ's user avatar
  • 33
2 votes
0 answers
89 views

Finding halfway point along route using ArcGIS Pro

I'm looking for a way to find the midpoint of a route. Instead of the geometric midpoint, I want to use travel time. The ultimate goal here is to find the travel time midpoint for a series of ...
mgallotta's user avatar
1 vote
1 answer
1k views

Does a common algorithm exist to find the midpoint of a linestring by distance within a coordinate system?

Recentl I needed to find the mid-point of a linestring. I work with java/Scala so I naturally reached for the JTS library but couldn't find anything in there for doing this. I implemented an algorithm ...
jcallin's user avatar
  • 11
0 votes
0 answers
66 views

Generate Midpoints for multiple Polygons along specified edges

I often have a series of polygons(rectangles) that I need to add midpoints to. The midpoints will be on a separate point layer placed at either end - see below. I have been doing this manually either ...
TTT's user avatar
  • 1