In QGIS Server 2.* the WMS GetPrint request could genrate JPEG image. QGIS Server 3.4 has lost this capabilities.
```
<ServiceExceptionReport xmlns="http://www.opengis.net/ogc" version="1.3.0" capture-installed="true">
<ServiceException code="InvalidFormat">
Output format jpg is not supported by the GetPrint request
</ServiceException>
</ServiceExceptionReport>
```
To fix this regression, it is necessary to accept JPEG output format.
And to avoid this regression to come back, the QGIS Server tests has been updated to accept jpg image test.
This feature allows for expressions to be embedded directly inside
legend item text (e.g. group, subgroup and item text). The expressions
are evaluated at render time, with full knowledge of the legend's
expression context (so can utilise variables from the layout/layout item/
etc)
There's no UI for this yet (that will come in 3.8), but expressions are
entered using the standard [% 1 + 2 %] format.
E.g. a legend item text of
My layer (rendered at 1:[% @map_scale %])
will show in the output as
My layer (renderer at 1:1000)
In QGIS Server 3.4, the WMTS API has been added in which the tile matrices are calculated except fro EPSG:3857 and EPSG:4326.
This commit adds the capability to select the tile matrices to use with the project and to configure the top-left corner and the last level of the tile matrix. In the case of EPSG:3857 and EPSG:4326, the user can only choose the last level of the tile matrices.
Funded by Ifremer.
* [server] Fix layer order rendering when layers are in groups
Fixes#20810
* Update test images
* [server] Fix order of layers in subgroups
basically: layers in WMS is specified in a comma separated
list where leftmost layer is drawn first (it's at the bottom)
and QGIS layer order is exactly the opposite: first layer
in the TOP (topmost) is drawn last (it is at the top).
For this reason the server reverses the list before passing
it to the renderer.
* Fix order of layers in test
* Update src/server/services/wms/qgswmsrenderer.cpp
This feature allows other layout items (such as scalebars,
north arrows, inset maps, etc) to be marked as a blockers for
the map labels in a map item. This prevents any map labels from
being placed under those items - causing the labeling engine
to either try alternative placement for these labels (or
discarding them altogether)
This allows for more cartographically pleasing maps -- placing
labels under other items can make them hard to read, yet without
this new setting it's non-trivial to get QGIS to avoid placing
the labels in these obscured areas.
The blocking items are set through a map item's properties, under
the label settings panel. The setting is per-map item, so you can have
a scalebar block the labels for one map in your layout and not others
(if you so desire!)
should show partial labels
Layout map items no longer respect the default project setting
for "show partial labels", and instead have their own, per map
setting for this option. (Under the map item properties,
labeling settings button).
The map item setting always defaults to off (unlike the canvas
setting, which defaults to true for a new project) as layouts
should always default to the settings which produce the highest
quality cartographic outputs.
In general I suspect that most users would always want to avoid
rendering partial labels in layouts, but this setting was
previously so deeply hidden that most are unaware of how to
change it. (And previous discussion about changing the canvas
setting to hide partial labels deemed this default undesirable
for the canvas, where showing even a small part of a label
on the map border can help identify what sits just on/off
the edges of the map)
This setting allows per-map control of how close labels are permitted
to be placed to the map item's edges.
Sizes can be set using mm/inches/pixels/etc, and data defined
label margins are allowed.
Fixes#10314
