The SAGA version of this algorithm is of limited use in QGIS, because the
volume calculated is embedded only in the SAGA terminal output. This prevents
it being saved to a file, or reused within a model as an input to a later
model step.
It's also very user-unfriendly, because users must know to manually scan
the algorithm log to find the SAGA output.
Given that the maths here is trivial, this commit ports the algorithm across
to be a native QGIS c++ algorithm. The algorithm duplicates the SAGA alg
1:1, but outputs the volume (and area) to either a HTML report, or a vector
table. Additionally, the outputs are exported as numeric outputs from the
algorithm, allowing them to be re-used within models.
(It's also considerably faster, because it avoids the forced conversion
to SAGA raster format)
Fixes#8607 (properly, even though that report is closed)
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)
- Set a better background color (yellow feels like a negative warning)
- Set text color to black to play nice with themes
- Make the hyperlink clickable, we want people to update!
Adds new variables for use in data defined expressions for layout legend items, including
- @legend_title
- @legend_column_count
- @legend_split_layers
- @legend_wrap_string
- @legend_filter_by_map
- @legend_filter_out_atlas
Additionally, if the legend is linked to a map, then expressions used in that legend will also have access to the linked variables, including @map_scale, @map_extent, etc.
* Add missing headings and ToC anchors
Adds missing headings (and table of contents anchors) for 'Renamed Enum Values' and 'Renamed Methods' tables.
* Removed table captions
Which are redundant due to the headings that the tables sit under
Next to the "simple" vector layer 3D renderer that uses a single symbol
for all features, this new renderer allows definition of hierarchy
of rules with 3D symbols to define how a layer is rendered in 3D view,
similar to how 2D rule-based rendering or labeling works.
This commit does not add any GUI support yet.
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.
