I am creating a map using QGIS 3.12 and wish to rotate the map and add a grid using print composer, but I want to keep the grid unrotated.
Is this possible or does the grid only rotate with the map?
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1that makes no sense - the grid is intimately related to the map's orientation– Ian TurtonCommented May 27, 2020 at 12:44
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2@IanTurton it is common to have a non-geographic grid to locate items (ex: letter A-E for columns, 1-10 for rows, then an index says "feature ABC: B-4")– JGHCommented May 27, 2020 at 12:49
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I wish to retain the geographic grid, but I want to display it unrotated - it is projected so I don't think it necessarily relates to the map's orientation?– ChrisCommented May 27, 2020 at 13:38
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@JGH not sure I'd agree common but ok then cm will work– Ian TurtonCommented May 27, 2020 at 14:22
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2 Answers
If you use an interval in cm instead of map unit, then the grid will not be rotated
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do you need to set a specific EPSG for the grid or does this work for all CRS ?– J.RCommented May 27, 2020 at 13:26
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@JGH thanks but I want to retain the geographical distance for the grid, I don't think this solution does?– ChrisCommented May 27, 2020 at 13:36
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1@Chris if you have a fixed scale you may calculate how many centimetre relate to the geographical distance you want to use for your grid and set that in the X and Y distance it's a bit of manual setting but better than nothing– J.RCommented May 27, 2020 at 14:57
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else you would have to create a vector layer grid, with the opposite rotation– JGHCommented May 27, 2020 at 15:12
You could add another unrotated map on top of your rotated map, that follows a theme which shows no layers, and create the grid with the given scale in this dummy map.
