QGIS 3.24 更新日志¶

功能：直接从布局地图和书签中检索地图范围¶

这是一个方便省时的功能！QGIS中的范围控件现在允许您直接从工程中的书签和布局检索和匹配地图范围。

此功能由 Mathieu Pellerin 开发

功能：更容易创建自定义坐标参照系¶

在选择坐标参照系 (CRS) 时，我们添加了一个新选项，允许您直接输入自定义CRS进行定义 (从proj或WKT字符串)，而不是要求您首先将这些自定义CRS专门添加到投影数据库中。

如果您只想定义一个用于单一用途的自定义投影，例如一张为特定经纬度位置投影而设计的概览地图，则会更加友好。

此项功能由 Nyall Dawson 开发

功能：标记/散列线 - 沿线偏移为线长的 "百分比" (和负偏移!)¶

现在，您可以为标记和散列线符号图层类型指定 沿线偏移 百分比。(这些偏移量被视为总线长度的百分比)。

此外，当标记或散列线符号图层的 沿线偏移 设置大于 闭合 环的大小时，QGIS现在将把偏移视为继续围绕环循环。例如，将偏移设置为150%会导致偏移被视为闭合环长度的50%。

最后，我们还可以为闭合环指定一个 沿线偏移 负偏移，负偏移沿环向后计算。

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

功能：控制第一个或最后一个顶点放置是否应用于多部件几何图形的每个部件¶

此标记和散列线符号类型的新符号表示选项，允许您控制第一个和最后一个顶点放置选项应分别应用于多部件线 (或多边形)的每个部件，还是仅应用于整个多部件几何图形中的第一个和最后一个顶点。

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

功能：标记或散列线 "在顶点上" 放置选项替换为 "在内部顶点上"¶

新的 在内部顶点上 模式仅将符号放置在所有 内部 顶点上 (即除第一个或最后一个顶点外的所有顶点)。

以前，旧的 "顶点" 模式将符号放置在第一个和最后一个顶点以及所有内部顶点上，因此基本上不可能在第一个或最后一个顶点上为线的其他顶点设置 不同 标记的样式。使用新的 在内部顶点上 选项，可以轻松创建线在第一个或最后一个顶点与其他顶点具有不同标记的样式！

(此处更改与切换为使用放置选项的复选框很好地结合在一起 -- 要在所有顶点上显示标记，只需确保勾选第一个、最后一个和内部顶点选项即可)。

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

功能：标记和散列线符号图层中的位置选项现在是复选框，而不是互斥按钮¶

这种改进使得在第一个 和 最后一个顶点 (以及其他有用的组合!) 上使用标记、创建标记 (或散列) 线变得相当容易

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

功能：控制插值梯度渐变时使用的颜色模型¶

渲染梯度渐变时，如果单独使用红/绿/蓝通道执行插值，梯度颜色的某些组合将导致渐变通过暗灰色中间色调。另一种方法是通过色调/饱和度/亮度或值通道来插补颜色，此种方法可以避免这些不饱和的中间色调，从而在视觉上产生令人更愉悦的梯度。

We now allow the color specifcation to be set per stop in a multi-stop color gradient to give users control over which interpolation technique to use. There's also an option to control the direction which interpolation should follow for the Hue component of a HSL/HSV color spec interpolation,m which can help avoid unwanted interpolation through the entire rainbow hue spectrum in some circumstances!

This video shows the difference in mid-tones of a color ramp, where the RGB interpolation results in murky colors, while the HSL/HSV interpolation remains nice and vibrant.

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: Resizable thumbnails in the style manager dialog¶

We've added a new slider to control the size of thumbnails shown in the style manager dialog, because sometimes these thumbnail sizes are just too small to get a good representation of a symbol!

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: "Lineburst" symbols¶

We've added a brand new "Lineburst" symbol layer type, which renders a gradient along the width of a line (as opposed to the Interpolated Line renderer, which renders a gradient along the length of a line). It's just like the Shapeburst fill symbol type, but for lines!

This feature was funded by North Road, thanks to SLYR!

此项功能由 Nyall Dawson 开发

Feature: "Raster Line" symbols¶

We're super-excited to bring you this brand new line symbol type, which allows you to render a raster image following a line feature's shape. This symbol type opens a whole new realm of possibilities for QGIS symbology, and is especially useful when creating maps in a hand drawn or painted style.

Options are available to control:

• the picture path (including data defined path)

• line width

• opacity

• line join and cap styles

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: Choice of clipping behaviour for line pattern fills¶

You can now control how lines in a line pattern fill symbol are clipped to polygon shapes. The available options include:

• Clip During Render Only: lines are created covering the whole bounding box of the feature which are then clipped while drawing. The line extremities (beginning and end) will not be visible (this is same behaviour as older QGIS releases).

• Clip Lines Before Render: lines are clipped to the exact shape of the polygon prior to rendering. The line extremities (including cap styles, start/end marker line symbols, etc) will be visible, and may sometimes extend outside of the polygon (depending on the line symbol settings).

• No Clipping: no clipping at all is done - the lines will cover the whole bounding box of the feature

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: Improved rendering of line pattern fills¶

When exporting to a vector format (e.g. PDF or SVG) or when a line subsymbol has dynamic (data defined) properties, we now automatically switch to a line-by-line based approach to render the fill. (Previously, a tiled pattern approach was always used, which often resulted in undesirable artefacts and visible seams in the pattern).

Some of the many benefits of this change include:

• Smaller PDF/SVG output file sizes -- the line pattern fills aren't stored as raster images in the output so the overall file size will often be much smaller

• PDF/SVG exported files are easier to modify in external applications (such as Inkscape or Adobe Illustrator) for post production, as each individual line in the pattern can be modified.

• Better quality PDF/SVG outputs, since the fill isn't DPI dependent and looks pixel perfect regardless of how far in you zoom

• No visible artifacts at certain angles, distances or with certain line symbol styles

And even more excitingly, it opens the door for a range of new symbol styles, for example:

• line patterns where the individual lines change color/width/dash/ etc.

• line patterns with marker line symbols on center point/etc

• geometry generator effects per line, e.g. wavy line patterns, hand drawn line styles, etc

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: Rotation angle for point pattern fills¶

Now you can specify an optional rotation angle for point pattern fills, which causes the entire point pattern to be angled. This can be extremely useful when overlaying multiple point pattern fills!

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: Randomized point offsets for point pattern fills¶

This (optional) setting allows each point in a point pattern fill to be randomly shifted up to the specified maximum distance in the x or y direction. You can specify the maximum offset in millimeters, points, map units, or even "percentage" units (where percentage is relative to the pattern width or height).

You can set an optional random number seed to avoid the symbol patterns "jumping" around between map refreshes. Data defined overrides are also supported.

The main difference between this new setting and the existing random marker fill symbol type is that the random offset with a point pattern allows for quasi-"regular" placement of markers -- because the points in the pattern are effectively constrained to a grid, this allows creation of semi-random fills which don't have empty areas or overlapping markers. (As opposed to the random marker fill, which will always place points completely randomly... sometimes resulting in visual clusters of points or unwanted empty areas).

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: Coordinate reference mode setting for line pattern and point pattern fill symbol layers¶

Line pattern and point pattern fill symbol layers have a new coordinate reference mode setting to tweak the anchoring of the patterns. Practically speaking, this allows for patterns to nicely align across adjacent and overlapping features.

此功能由 Mathieu Pellerin 开发

Feature: Control marker clipping for point pattern fills¶

This new option gives you control over how markers are clipped in a point pattern fill. The available options include:

• Clip to shape: markers will be clipped by the boundary of the shape, so "cut off" markers may be visible (same behaviour as previous QGIS versions)

• Marker centroid within shape: markers will be drawn only if their centroid falls within the shape, and markers will not be clipped to the shape boundary

• Marker Completely Within Shape: markers will only be drawn if they fit completely within the shape

• No clipping: whole marker symbols will be drawn if any part of the marker falls within the shape

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: Expression functions for creating triangular/square/curved waves¶

We've added some new expression functions which produce "wavy lines" along geometry boundaries. Multiple wave shapes are available, including:

• Wave (sine-like)

• 三角(Triangular)

• 方角

In addition, expressions functions have also been added for creating waves in a regular fashion or with randomization.

When used with geometry generators, these expressions can be used for some very advanced cartographic effects!

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: "Percentage" units for text buffer size, shadow offset and blur radius¶

We now allow the sizes for text buffer, shadow offset and shadow blur radius to be set as a percentage of the font size. This is desirable as it allows the creation of text formats where the components nicely scale as the text size is changed, instead of having fixed buffer/shadow sizes that need to be independently adjusted when the text size changes.

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: Data defined label positions by point geometries¶

You can now set the data defined placement of labels to be bound to a point geometry field or expression. (Previous QGIS versions only allowed data defined placement to be set via two separate numeric x and y fields).

This change also allow you to use the Move Label tool to change the position of a label which is bound to a point geometry field, causing the new label position to be stored as a point geometry in that attribute.

This feature was funded by Swiss QGIS user group

This feature was developed by Damiano Lombardi

Feature: Stretched text for labels and text formats¶

This improvement allows your text to be horizontally stretched or condensed by a percentage factor. It's often handy for tweaking the widths of fonts to fit a bit of extra text into labels (when used sparingly, that is... you can certainly abuse font stretching with some horrendous results!)

Note: This improvement requires Qt 6.3+ or KDE's 5.15 fork. (On other builds the stretch options are hidden and can't be set)

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: Rendering layers as groups¶

This is another exciting cartographic enhancement which opens up a whole new arena of symbology and map visualisation in QGIS!

Prior to this improvement, QGIS supported grouping layers within the layer tree as a means of structuring projects, but these groups had no impact on how the component layers were rendered. In QGIS 3.24 we've introduced a new option allowing these layer groups to "Render as Group", which causes all the component layers to be rendered as a single flattened object during map renders.

This option is available within the layer styling dock whenever a group layer is selected. This panel also allows you to control the appearance of the group as a whole, with options for the overall group opacity, blend mode, and layer effects!

Additionally, when a layer is contained in a group which has the new Render as Group option activated, new blending modes will be available which perform "clipping" style operations during the render. These allow you to achieve some very powerful results, such as clipping the render of one layer's content by the content in a second "mask" layer!

This feature was funded by Andrew Fletcher.

此项功能由 Nyall Dawson 开发

Feature: Support for "Line pattern" when converting Mapbox GL vector tile layer styles¶

Making use of the brand new raster line symbol layer, QGIS 3.24 now properly renders Mapbox GL line pattern styling for newly-added vector tile layers.

此功能由 Mathieu Pellerin 开发

Feature: Support background styles for Mapbox GL-styled vector tile layers¶

We now correctly render any predefined background styling present in Mapbox GL-styled vector tile layers. This dramatically improves the appearance of vector tile layers with dark styles!

此功能由 Mathieu Pellerin 开发

Feature: Respect Z ordering when rendering point clouds in 2D¶

We've added an option to render point clouds according to their Z-order in 2D map views. With the new bottom-to-top ordering option enabled, points with larger Z values will cover lower points -- resulting in the appearance of a true orthographic photo. There's also an option for reverse sorting (top-to-bottom), where the scene appears as if viewed from below.

This feature was funded by Crowdfunding: Enhancing elevation data and point clouds in QGIS

This feature was developed by Stefanos Natsis (Lutra Consulting)

Feature: Dock/Undock 3D views¶

We've been aware that using dock widgets for 3D maps can be inconvenient, and in many situations these are frustrating to resize and move as they are prone to re-dock as you adjust their sizes! With QGIS 3.24 we added the ability to switch 3D maps from a dockable widget to a top-level window (and back to a dock widget), so that these map views can now be managed, resized and moved just like a standard application window.

This feature was funded by Crowdfunding: Enhancing elevation data and point clouds in QGIS

This feature was developed by Nedjima Belgacem (Lutra Consulting)

Feature: 3D map view manager¶

Previously, if you closed a 3D map view and then saved your project, the 3D map view and all its settings would be lost when you reopen that project. So in QGIS 3.24 we've added a "3D map view manager" that takes care of listing, removing, renaming and duplicating 3D map views in your projects!

We've also added a new "3D Map Views" menu, which contains all your created 3D map views for easy access!

This feature was funded by Crowdfunding: Enhancing elevation data and point clouds in QGIS

This feature was developed by Nedjima Belgacem (Lutra Consulting)

Feature: Improved camera navigation¶

The default navigation mode in earlier versions of QGIS would sometimes behave strangely when moving around, rotating or zooming in/out. A lot of effort went into improvements of the camera control, so since QGIS 3.24 the camera navigation's behavior should feel more natural and similar to other 3D mapping software.

For more details, see Fixing terrain and camera issues in 3D

This feature was funded by QGIS.org grant (2021)

This feature was developed by Nedjima Belgacem (Lutra Consulting)

Feature: Full text rendering capabilities for layout text labels¶

In older QGIS releases you had to revert to hacky tricks like using HTML and CSS to add effects like drop shadows to text in your map layouts. Hack no more! In 3.24 we now allow you to use the familiar properties from the labeling text options for text on layouts too! This means you can now add shadows, text buffers, backgrounds, letter and word spacing, etc. all on the text items in your layouts.

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: geometry_type function¶

The new geometry_type function returns the high-level type of a geometry (i.e. 'Point', 'Line' or 'Polygon').

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此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: Overlay intersects sort by intersection size¶

We have added further enhancements to the overlay_intersects function. The change adds two new optional arguments to the existing function:

• return_details: only valid when used with an expression, set this to true to return a list of maps containing (key names in quotes) the feature 'id', the expression 'result' and the 'overlap' value, the 'radius' of the maximum inscribed circle is also returned when the target layer is a polygon.

• sort_by_intersection_size: only valid when used with an expression, set this to true to return the results ordered by the overlap value in descending order.

此功能由 Kanton Solothurn, Amt für Geoinformation 资助

此功能由 Alessandro Pasotti 开发

Feature: Show all layer field names when building expressions¶

As a handy time-saver, we now make a list of all field names from all layers in your project available directly in the expression builder. If you double-click any of these field names, they'll be added to your expression as string values ('field_name').

This feature was funded by ARPA Piemonte

此功能由 Alessandro Pasotti 开发

Feature: represent_attributes function¶

This new function returns a map with all attribute (field) names as the keys and the configured representation values as values. The representation value for the attributes depends on the configured widget type for each attribute.

The function can be used with zero, one, or more arguments:

• If called with no parameters, the function will return the representation of the attributes of the current feature in the current layer.

• 如果仅使用 "要素" 参数调用，该函数将返回当前图层中指定要素的属性描述。

• 如果使用 '图层' 和 '要素' 参数调用，该函数将从指定图层返回指定要素的属性描述。

This feature was funded by Kanton Solothurn

此功能由 Alessandro Pasotti 开发

Feature: Optional minimum overlap area and circle radius for overlay_intersection¶

We have added two optional arguments to the overlay_intersection() expression function:

• min_overlap: for polygons an optional minimum area in current feature squared units for the intersection (if the intersection results in multiple polygons the intersection will be returned if at least one of the polygons has an area greater or equal to the value), for lines an optional minimum length in current feature units (if the intersection results in multiple lines the intersection will be returned if at least one of the lines has a length greater or equal to the value)

• min_inscribed_circle_radius: for polygons only an optional minimum radius in current feature units for the maximum inscribed circle of the intersection (if the intersection results in multiple polygons the intersection will be returned if at least one of the polygons has a radius for the maximum inscribed circle greater or equal to the value). Read more on the underlying GEOS predicate, as described in PostGIS ST_MaximumInscribedCircle function.

This feature was funded by Kanton Solothurn

此功能由 Alessandro Pasotti 开发

Feature: map_prefix_keys function¶

In QGIS 3.24 we've added a new map_prefix_keys function that takes a map and a prefix, the function returns a map with all keys prefixed by the prefix.

Example: map_prefix_keys(map('1','one','2','two'), 'prefix-')

returns: { 'prefix-1': 'one', 'prefix-2': 'two' }

This feature was funded by Kanton Solothurn

此功能由 Alessandro Pasotti 开发

Feature: densify_by_count and densify_by_distance functions¶

This functionality, which was previously only available through the Processing toolbox, is now available for use in expressions!

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: Rotate parts of multi-part geometries independently with "rotate" expression function¶

The new "per_part" option for the "rotate" expression function allows you to rotate each part of a multi-part geometry around the center of each part (instead of the center of the geometry as a whole). This enhancement is designed to help out symbology when the rotate function is used as a cartographic tool as part of a geometry generator symbol layer.

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: apply_dash_pattern function¶

This exciting new expression function applies a dash pattern to a geometry, returning a MultiLineString geometry which is the input geometry stroked along each line (or ring) using a dashed line pattern.

Rules can be set to control how the dash pattern is adjusted at line endings. If you specify a start rule or end rule, then the "adjustment" option defines whether both dash and gaps, or only dash or gap sizes are adjusted to apply these rules.

You can also set an optional pattern offset to specify how far along the pattern the result should start at.

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: scale function¶

This new expression function allows you to scale (resize) a geometry. Just like the 'rotate' function, the function accepts an optional point position to apply the scaling from. If no anchor point is not specified then scaling is done from the center of the geometry's bounding box.

此功能由 North Road 资助，感谢 SLYR

此项功能由 Nyall Dawson 开发

Feature: Filter by multiple attributes for get_feature function¶

We extended the get_feature function to allow multi-attribute filtering, by adding an option to pass an array of filter values to the input.

This feature was developed by Alex

Feature: Multiedit support for relation editor¶

We've added a new multi edit mode for the relation editor, which allows the rapid addition of child features to multiple parent features. This improves efficiency for data management operations, such as the ability to select multiple trees and adding a maintenance item to all of them in one click.

This feature was funded by QGIS Model Baker

This feature was developed by Damiano Lombardi, OPENGIS.ch

Feature: Support for OGC API - Records in MetaSearch¶

We updated the MetaSearch tool to provide support for the OGC API - Records (OARec) standard. As part of the OGC API evolution, OGC API - Records is the successor to OGC:CSW (like OGC API - Features is to WFS, etc.).

The OGC API - Records standard is currently in development and the current timeline for a public RFC by OGC is Q1 2022. This we ask you to take note of the draft status of the specification so you are aware that the specification may change a bit more over the next few months. We still need to flesh out how actionable links are handled over the next few months (which should be a significant improvement compared to the CSW publish/find/bind workflow).

Adding this feature to QGIS is a huge win for easier search and will help both users and providers for the long term.

This feature was developed by Tom Kralidis

Feature: Form submit actions with HTTP POST¶

In QGIS 3.24 we added two new HTTP POST actions, similar to the existing Open action which uses an HTTP GET request.

The two actions differ in the way the form data are encoded:

1. application/x-www-form-urlencoded

2. multipart/form-data

In both cases, data are passed to the action in a URL encoded URL.

A new function url_encode(<map>) is provided to convert a dictionary (a map) to the encoded format.

The response from the submitted URL is opened by delegating to the operating system QDesktopServices::openUrl() after the payload has been stored in a temporary file.

This feature was funded by Kanton Solothurn

此功能由 Alessandro Pasotti 开发

Feature: New button to open attribute table on filtered features¶

We've added a new button to the attribute form (when in search mode) which enables you to open an attribute table filtered to only show the matching features.

This feature was funded by ARPA Piemonte

此功能由 Alessandro Pasotti 开发

Feature: Add roundness method to curve polygon¶

We added a "roundness" method to QgsCurvePolygon, allowing the calculation of the "roundness" of an area feature based on the formula Roundness = (4 * pi * Area) / Perimeter^2.

This includes the addition of a new expression and a processing tool for calculating roundness. The processing tool creates a new layer with the roundness of each feature in a new field.

This feature was developed by Antoine Facchini

Feature: Extract labels algorithm¶

For 3.24 we added a new tool to QGIS' processing toolbox: "Extract labels". As its name hints at, this algorithm extracts label information from a rendered map at a specific extent and scale.

Extracted label information include its position (as point geometries), the associated layer name and feature ID, as well as label appearance properties such as rotation, text, alignment, font family, size, weight, etc.

The algorithm also generates a default symbol-less & labelled style for the output layer which allows for those saved layers to be drag and dropped into projects and have the label drawn exactly as they were exported.

If a map theme is specified when extracting labels, the exported labels will match the visibility and symbology of that theme. If left blank, the project's current visible layers will be used.

This feature was funded by TEKSI

This feature was developed by Mathieu Pellerin

Feature: Optional output extent parameter for the GDAL Raster Calculator algorithm¶

When running against GDAL 3.3 or newer, QGIS processing toolbox's GDAL Raster Calculator algorithm now allows you to specify an optional "output extent" parameter. This can be quite useful when working with large datasets, often avoiding the need to create an intermediary clipped raster prior to running the calculator algorithm.

此功能由 Mathieu Pellerin 开发

Feature: Optional extent parameter for the GDAL clip raster by mask algorithm¶

We added an optional extent parameter to the GDAL "clip raster by mask" algorithm, which can come in handy when working with large raster datasets.

此功能由 Mathieu Pellerin 开发

Feature: Processing history rework¶

QGIS 3.24 includes a partial implementation of the framework described in QEP 130, and ports the Processing history log over to this framework.

This is a much more flexible approach to storing Processing history, as it allows us to store unlimited additional information about the executed tool (including all the input parameters, output results, and the full text log too!). The history log is now stored in a sqlite database instead of the text file previously used, which allows for more efficient storage/retrieval/filtering.

The new framework potentially extends to more than just Processing - it could also be used to store the history of other user operations, such as project edits, layout exports etc!

We'll be using this framework in future to further extend the Processing history dialog. For 3.24, we're using it to expose a number of helpful additions to the history dialog:

• Right clicking an entry in the log has a new option to copy the execution parameters as a "qgis_process" command line equivalent, giving you a super-easy way to generate qgis_process commands for execution in a CLI.

• Right clicking an entry also shows a new "Copy as JSON" option, which copies a JSON string of the input parameters and algorithm settings

This feature was funded by the Research Institute for Nature and Forest, Flemish Govt

此项功能由 Nyall Dawson 开发

Feature: Advanced actions in Processing dialogs¶

We have added new actions on the processing dialog including copy as qgis_process command, and copy/paste as JSON. Together these actions:

• Allows for easy copying of the equivalent PyQGIS command to run the tool using the parameters defined in the dialog

• Allow for easy generation of qgis_process commands via the QGIS GUI, including any tricky parameter values like GeoPackage outputs with specific layers

• Provide a way for you to copy the settings defined in the dialog in a text format, so that you can store these easily and then restore them later by pasting the values.

• Provides an easy way for you to copy the settings into the JSON format consumed by qgis_process, so that it is easy to see the expected format even for complex parameters (like TIN interpolation parameters).

This feature was funded by the Research Institute for Nature and Forest, Flemish Govt

此项功能由 Nyall Dawson 开发

Feature: Single file exports from Atlas to PDF algorithm¶

You can now export an atlas layout to a single (collated) PDF file using the "Export atlas layout as PDF" processing algorithm.

此项功能由 Nyall Dawson 开发

Feature: Project Models are shown in the Project menu¶

We added a new submenu to the "Project" menu, which will list any Processing models stored within the current project. This gives you a quick way to launch these project-specific models, in either a single or batch mode!

This feature was funded by Kanton Solothurn

此功能由 Alessandro Pasotti 开发

Feature: Add point cloud destination parameter and output to Processing¶

We have extended and improved point cloud support in Processing, namely by:

• Fixing the filtering of point cloud layers in QgsProcessingMapLayerComboBox-based widget used for parameters

• Adding a destination point cloud parameter type and point cloud output types with corresponding widgets. (Currently these are useful for 3rd party providers and plugins which create point cloud outputs.)

• Exposing the newly added point cloud output and destination parameters to the algfactory wrapper

此功能由 Alexander Bruy 开发

Feature: Array field support¶

In QGIS 3.24, we've made array field types first-class citizen in the Processing toolbox! The following algorithms have all been updated to support array fields:

• Refactor algorithm;

• Aggregate algorithm;

• Add field to attributes table algorithm;

• Field calculator algorithm; and

• Advanced (i.e. python) field calculator algorithm

This feature was funded by SwissTierras Colombia

此功能由 Mathieu Pellerin 开发

Feature: qgis_process --no-python argument¶

This new, optional command line parameter for the qgis_process command-line tool allows you to skip launching Processing with Python support when it is not required. This can result in a significant improvement in qgis_process startup times!

This feature was funded by North Road

此项功能由 Nyall Dawson 开发

Feature: Suppress "bad layers" handler on startup¶

We've added support for a new command line flag for the qgis executable, which allows you to disable the default dialog which shows when opening a project with missing/broken layers:

[--skipbadlayers]       don't prompt for missing layers

Example invocation: ./qgis --skipbadlayers or ./qgis -B

The use case for this is that sometimes users have automation or other post-startup processes happen and do not want to have the startup process interrupted if there are bad layers present in the project. After startup, QGIS will ignore any missing layers, but they will still be marked as broken in the layers list.

This feature was suggested by Giuseppe Baiamonte during, and live coded on, the QGIS Open Day, 17 Dec 2021.

This feature was developed by Tim Sutton

Feature: Parameter values for qgis_process can be specified as a JSON object via stdin¶

We now provide a mechanism to support complex input parameters for algorithms when running the qgis_process command line tool.

To indicate that parameters will be specified via stdin then the qgis_process command must follow the format

qgis_process run algid -

(with a trailing - in place of the usual arguments list).

The JSON object must contain an "inputs" key, which is a map of the input parameter values.

echo "{"inputs": {\"INPUT\": \"my_shape.shp\", DISTANCE: 5}}" | qgis_process run native:buffer -

Additionally, extra settings like the distance units, area units, ellipsoid and project path can be included in this JSON object:

{
    'ellipsoid': 'EPSG:7019',
    'distance_units': 'feet',
    'area_units': 'ha',
    'project_path': 'c:/temp/my_project.qgs'
    'inputs': {'DISTANCE': 5, ..... }
}

(Specifying input parameters via stdin implies automatically the --json output format for results.)

One big motivation behind this enhancement is to provide a way for the qgis_process R libraries to support parameter types such as aggregates!

This feature was funded by the Research Institute for Nature and Forest, Flemish Govt

此项功能由 Nyall Dawson 开发

Feature: Run Python script algorithms directly via qgis_process¶

The qgis_process command-line tool now supports running a Python script algorithm directly by specifying the path to the .py file, in place of an algorithm ID or model file path!

此项功能由 Nyall Dawson 开发

Feature: Friendlier errors from XYZ raster tiles, WMS and vector tiles¶

Server errors which occur during XYZ, vector tile or WMS network requests are now shown directly in the QGIS window via the message bar. We've made these error messages much more descriptive and helpful, by including the original response error text wherever possible!

This feature was funded by MapTiler

This feature was developed by Lutra Consulting (Vincent Cloarec)

Feature: Add out-of-the-box connection to Mapzen Global Terrain tiles¶

QGIS now sports built-in support for the Terrarium DEM format for WMS/XYZ layers. In addition, we now have out-of-the-box ability to add Mapzen Global Terrain Tiles hosted on AWS. You can find the new MapZen option in the XYZ section of the browser panel. Users now have an immediately accessible global DEM source for their projects!! See also https://registry.opendata.aws/terrain-tiles/

此项功能由 Nyall Dawson 开发

Feature: HMAC SHA256 auth method for MapTiler¶

We've added a new authentication method specific for MapTiler which allows you to use a token encrypted with HMAC-SHA256.

This feature was funded by MapTiler

This feature was developed by Lutra Consulting (Vincent Cloarec)

Feature: Template parameter {usage} for XYZ raster and vector tiles¶

For XYZ tile-based raster layers and for vector tile layers, we now allow the possibility to insert {usage} template parameters (in addition to {x}, {y}, {z}). If present, this parameter will be replaced by the context in which the request is being made.

The possible context values are:

• view - when the request comes from 2D or 3D map canvas

• export - when the request comes from exporting a layer or exporting a print layout for high-quality output (map previews in print layout designer are classed as “view”)

• unknown - when coming from some other context, but the source is unknown

This functionality is useful for MapTiler clients, where they need to recognize the context in which tiles are used in order to bill users accordingly.

This feature was funded by MapTiler

This feature was developed by Lutra Consulting (Vincent Cloarec)

Feature: Convert WMTS/XYZ raster tiles to terrain (DEM)¶

In QGIS 3.24 we've introduced the possibility to convert WMTS/XYZ raster datasets to a raster layer of single band float type following a predefined encoding scheme.

You can activate this option and choose an encoding scheme (for now, "MapTiler Terrain RGB" or "Terrarium Terrain RGB" are available) in the source settings of the XYZ connection or in the Data Source Manager when adding a WMST layer.

The selected converter will translate the RGB source values to float values for each pixel. After loading, the layer will be presented as a single band floating point raster layer, ready for styling using a pseudocolor or hill shade renderer!

This feature was funded by MapTiler

This feature was developed by Lutra Consulting (Vincent Cloarec)

Feature: Array field types for scratch layers¶

You can now add array field types directly to newly created scratch layers. (While array field types have previously been supported by scratch layers, there was no way for users to add them when creating a new scratch layer.)

此功能由 Mathieu Pellerin 开发

Feature: JSON field types for new GeoPackage layers¶

We've added support for creating JSON fields directly to newly created GeoPackage layers. (While JSON field types have previously been supported by GeoPackage layers, there was no way for users to add them when creating a new layer.)

此功能由 Mathieu Pellerin 开发

Feature: Delimited text type overrides and other improvements¶

We've given some love to the delimited text data provider in 3.24, with several enhancements which include:

Boolean type support and automatic detection

Boolean data types are now first-class citizens, which are automatically recognized when all records in a column contain one of the following values (case insensitive):

• t/f

• true/false

• yes/no

• 0/1

Boolean fields are also detected from a CSVT file, a GDAL/GeoCSV format e.g.

Integer(Boolean)

You can also add custom string representations for TRUE/FALSE (for example a localized "yes"/"no" value).

Column type override

Column types are automatically determined (by an initial limited scan of the file for immediate feedback followed by a full scan of the file which happens in a separate thread to not block the GUI and is user-interruptible), the types are exposed to the GUI as combo boxes and the user can override the automatically determined types.

Enhanced CSVT support.

CoordX, CoordY, Point(X/Y), WKT are now recognized as specified in https://giswiki.hsr.ch/GeoCSV

This feature was funded by Stadt Freiburg im Breisgau

此功能由 Alessandro Pasotti 开发

Feature: New authentication method for HTTP header based authentication¶

A new authentication method is available for network requests which that supports user defined HTTP header authentication. Multiple custom headers can be included in these requests.

This is useful in various scenarios, such as when a WMS requires an API key that is to be used in a HTTP header with the header key being X-API-KEY, which can now be included in requests from QGIS to authenticate against the WMS endpoint.

This feature was developed by Tom C

Feature: Expose secondary PostGIS geometry columns as referenced geometries¶

As discussed in this issue, we have added support for exposing additional geometry columns from the Postgres provider as QgsReferencedGeometry. This allows more efficient interaction with additional geometry columns through the API. For example, in label placement, the additional geometry column can be used instead of the feature geometry. The fields will be represented as WKT [CRS User-Friendly Identifier] in the attribute table.

This can be used in expressions and in the label placement properties tab where you can link the label placement to the second geometry column using the Point property. In the case where you using it for labelling, the second geometry column will be updated automatically if you use the move tool and the columnt type is Geometry. If the column type is text, you could also use that as a second geometry by doing e.g.

geom_from_wkt("my wkt string field")

In this case however, the column will be read only.

So e.g. now in expressions if you have secondary geometry column you can do:

buffer("my_second_geom_column", 10)

and it will work.

This feature was funded by OPENGIS.ch

This feature was developed by Matthias Kuhn, OPENGIS.ch

Feature: Allow better control of the response flow chain from server filters¶

New filters allow control of the call chain by implementing new filter callbacks that allow returning a control value for stopping propagation. This allows for the better control of streamed data and response flow.

• Deprecate bool QgsFilter::onRequestReady(), bool QgsFilter::onSendResponse(), bool QgsFilter::onResponseComplete()

• Add new methods bool QgsFilter::onRequestReady(), bool QgsFilter::onSendResponse(), bool QgsFilter::onResponseComplete() which return boolean values for controlling data flow

• Handle flow control in QgsFilterResponseDecorator::flush()

This feature was developed by David Marteau

Bug fixes by Alessandro Pasotti¶

These bugfixes were funded by QGIS.ORG (through donations and sustaining memberships)

Bugs fixed by Alessandro Pasotti

Bug fixes by Sandro Santilli¶

These bugfixes were funded by QGIS.ORG (through donations and sustaining memberships)

Bugs fixed by Sandro Santilli

Bug fixes by Even Rouault¶

These bugfixes were funded by QGIS.ORG (through donations and sustaining memberships)

Bugs fixed by Even Rouault

Bug fixes by Denis Rouzaud¶

These bugfixes were funded by QGIS.ORG (through donations and sustaining memberships)

Bugs fixed by Denis Rouzaud

Bug fixes by Alex Bruy¶

These bugfixes were funded by QGIS.ORG (through donations and sustaining memberships)

Bugs fixed by Alex Bruy

Bug fixes by Paul Blottiere¶

These bugfixes were funded by QGIS.ORG (through donations and sustaining memberships)

Bugs fixed by Pau Blottiere

Bug fixes by Matthias Kuhn¶

These bugfixes were funded by QGIS.ORG (through donations and sustaining memberships)

Bugs fixed by Matthias Kuhn

Bug fixes by Nyall Dawson¶

These bugfixes were funded by QGIS.ORG (through donations and sustaining memberships)

Bugs fixed by Nyall Dawson

Bug fixes by Damiano Lombardi¶

These bugfixes were funded by QGIS.ORG (through donations and sustaining memberships)

Bugs fixed by Damiano Lombardi