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Clarify what the grid interval type refers to #8529

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Clarify what the grid interval type refers to #8529

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Clarify what the grid interval type refers to
DelazJ Sep 21, 2023
37544e0
Adjusting sentences split over lines and minor formatting
DelazJ Sep 21, 2023
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69 changes: 33 additions & 36 deletions docs/user_manual/print_composer/composer_items/composer_map.rst
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Expand Up @@ -262,15 +262,13 @@ feature following:
Grids
-----

With grids, you can add, over your map, information relative to its extent or
coordinates, either in the map item projection or a different one. The
:guilabel:`Grids` group provides the possibility to add several grids to a
map item.
With grids, you can add, over your map, information relative to its extent
or coordinates, either in the map item projection or a different one.
The :guilabel:`Grids` group provides the possibility to add several grids to a map item.

* With the |symbologyAdd| and |symbologyRemove| buttons you can add or remove a selected
grid;
* With the |arrowUp| and |arrowDown| buttons you can move up and down a grid in
the list, hence move it on top or bottom of another one, over the map item.
* With the |symbologyAdd| and |symbologyRemove| buttons you can add or remove a selected grid;
* With the |arrowUp| and |arrowDown| buttons you can move up and down a grid in the list,
hence move it on top or bottom of another one, over the map item.

Double-click the added grid to rename it.

Expand All @@ -282,8 +280,7 @@ Double-click the added grid to rename it.
Map Grids Dialog

To modify a grid, select it and press the :guilabel:`Modify Grid...` button
to open the :guilabel:`Map Grid Properties` panel and access its
configuration options.
to open the :guilabel:`Map Grid Properties` panel and access its configuration options.

Grid Appearance
...............
Expand All @@ -293,36 +290,34 @@ In the :guilabel:`Map Grid Properties` panel, check |checkbox|

As grid type, you can specify to use a:

* *Solid*: shows a line across the grid frame. The :guilabel:`Line style` can
be customized using :ref:`color <color-selector>` and :ref:`symbol
<symbol-selector>` selector widget;
* *Cross*: displays segment at the grid lines intersection for which you can
* **Solid**: shows a line across the grid frame.
The :guilabel:`Line style` can be customized using :ref:`color <color-selector>`
and :ref:`symbol <symbol-selector>` selector widget;
* **Cross**: displays segment at the grid lines intersection for which you can
set the :guilabel:`Line style` and the :guilabel:`Cross width`;
* *Markers*: only displays customizable markers symbol at grid lines
intersection;
* or *Frame and annotations only*.
* **Markers**: only displays customizable markers symbol at grid lines intersection;
* or **Frame and annotations only**.

Other than the grid type, you can define:

* the :guilabel:`CRS` of the grid. If not changed, it will follow the Map CRS.
The :guilabel:`Change` button lets you set it to a different CRS.
Once set, it can be changed back to default by selecting any group heading
(e.g **Geographic Coordinate System**) under
:guilabel:`Predefined Coordinate Reference Systems` in the CRS
selection dialog.
* the :guilabel:`Interval` type to use for the grid references. Available
options are ``Map Unit``, ``Fit Segment Width``, ``Millimeter`` or ``Centimeter``:

* choosing ``Fit Segment Width`` will dynamically select the grid interval based
on the map extent to a "pretty" interval. When selected, the ``Minimum`` and
``Maximum`` intervals can be set.
* the other options allow you to set the distance between two consecutive grid
references in the ``X`` and ``Y`` directions.

* the :guilabel:`Offset` from the map item edges, in the ``X`` and/or the ``Y``
direction
* and the :guilabel:`Blend mode` of the grid (see :ref:`blend-modes`) when
compatible.
* the :guilabel:`CRS` of the grid: by default, it will follow the map item CRS.
Press |setProjection| :sup:`Select CRS` button to set it to a different CRS.
* the :guilabel:`Interval` type to use for the grid references:

* **Map Units**: you set a distance within the map (in the unit of the grid CRS)
between consecutive grid references in the :guilabel:`X` and :guilabel:`Y` directions.
The number of grid ticks will vary depending on the map scale.
* choosing **Fit Segment Width** will dynamically select the grid interval based
on the map extent to a "pretty" interval.
That optimal interval is calculated within a range of distances
whose :guilabel:`Minimum` and :guilabel:`Maximum` values can be customized.
* With **Millimeters** or **Centimeters**, you set a distance on the paper
between consecutive grid references in the :guilabel:`X` and :guilabel:`Y` directions.
The number of grid ticks will be the same whatever the map scale.

* the :guilabel:`Offset` from the map item edges, in the :guilabel:`X`
and/or the :guilabel:`Y` direction
* and the :guilabel:`Blend mode` of the grid (see :ref:`blend-modes`) when compatible.

.. _Figure_layout_map_grid_draw:

Expand Down Expand Up @@ -478,6 +473,8 @@ of the overview on the selected map frame. You can customize it with:
:width: 1.5em
.. |refresh| image:: /static/common/mActionRefresh.png
:width: 1.5em
.. |setProjection| image:: /static/common/mActionSetProjection.png
:width: 1.5em
.. |setToCanvasExtent| image:: /static/common/mActionSetToCanvasExtent.png
:width: 1.5em
.. |setToCanvasScale| image:: /static/common/mActionSetToCanvasScale.png
Expand Down
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