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In my QGIS project I have a multi-linestring vector layer where each multi-linestring feature consists of small not connected linestrings.

I would like to show a bounding box around each of the parts of each multi-linestring object like in the following example:

One multilinestring object with styling of each single part object

If I use the following styling

bounds($geometry)

I just get a bounding box around the entire multi-linestring object.

Is it possible to visualise the bounding box of each of the parts of the multi-linestring objects without creating a new single part dataset?

2

With a small test sample as below:

(1) A multipart line layer.

enter image description here

(2) Created a polygon by geometry generator bounds($geometry). One large box encompasses all lines, as you have pointed out...

enter image description here

(3) So I used bounds(geometry_n($geometry, @geometry_part_num)), to create a box for each line.

enter image description here

Hope these red boxes (dashed) are what you were looking for.

  • @Chau Probably out of your scope...... I had spent hours trying to change the color for each box without success...... =( – Kazuhito Dec 10 '17 at 9:53
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    thanks for looking into this! I had long forgot about this but will use get back to it again now :) – Chau Dec 11 '17 at 8:47

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