重要

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28.1.8. 网孔

28.1.8.1. Export contours 

Creates contours as a vector layer from a mesh scalar dataset.

参数

标注	名称	类型	描述
Input mesh layer	`INPUT`	[mesh]	The mesh layer to export data from
Dataset groups	`DATASET_GROUPS`	[layer] [list]	The dataset groups
Dataset time	`DATASET_TIME`	[datetime]	The time range to take into account 0 --- Current canvas time 1 --- Defined date/time 2 --- Dataset group time step
Increment between contour levels 可选	`INCREMENT`	[数字] Default: Not set	Interval between generated levels.
Minimum contour level 可选	`MINIMUM`	[数字] Default: Not set	Starting level values of contours.
Maximum contour level 可选	`MAXIMUM`	[数字] Default: Not set	Maximum values of contours, i.e. no generated levels will be greater than this value.
List of contours level 可选	`CONTOUR_LEVEL_LIST`	[数字] Default: Not set	List of wanted levels of contours (separated by commas). If filled, the increment, minimum, and maximum fields will not be considered.
Output coordinate system 可选	`CRS_OUTPUT`	[crs]	Coordinate Reference System to assign to the output
Exported contour lines	`OUTPUT_LINES`	[vector: line] Default: `[Create temporary layer]`	Specify the output line layer representing the contours of the mesh layer. One of: Create Temporary Layer (`TEMPORARY_OUTPUT`) 保存到文件… Save to Geopackage… Save to Database Table… 文件编码也可以在此更改。
Exported contour polygons	`OUTPUT_POLYGONS`	[vector: polygon] Default: `[Create temporary layer]`	Specify the output polygon layer representing the contours of the mesh layer. One of: Create Temporary Layer (`TEMPORARY_OUTPUT`) 保存到文件… Save to Geopackage… Save to Database Table… 文件编码也可以在此更改。

输出

标注	名称	类型	描述
Exported contour lines	`OUTPUT_LINES`	[vector: line]	Line layer representing the contours of the mesh layer.
Exported contour polygons	`OUTPUT_POLYGONS`	[vector: polygon]	Polygon layer representing the contours of the mesh layer.

Python代码

Algorithm ID: native:meshcontours

import processing
processing.run("algorithm_id", {parameter_dictionary})

当你在数据处理工具箱某个算法前悬停时，算法 id 将会展现。*参数字*将会提供参数的名称与数值。参考详见`数据处理_控制台`以获取如何从Python控制台中运行数据处理算法。

28.1.8.2. Export cross section dataset values on lines from mesh 

Extracts a mesh dataset's values from lines contained in a vector layer.

Each line is discretized with a resolution distance parameter for extraction of values on its vertices.

参数

标注	名称	类型	描述
Input mesh layer	`INPUT`	[mesh]	The mesh layer to export data from
Dataset groups	`DATASET_GROUPS`	[layer] [list]	The dataset groups
Dataset time	`DATASET_TIME`	[datetime]	The time range to take into account 0 --- Current canvas time 1 --- Defined date/time 2 --- Dataset group time step
Lines for data export	`INPUT_LINES`	[vector: line]	Lines where the data will be extracted from the dataset mesh
Line segmentation resolution	`RESOLUTION`	[数字] Default: 10.0	The distance between points on the lines where the data will be extracted from the dataset mesh.
Digits count for dataset value	`DATASET_DIGITS`	[数字] Default: 2	Number of digits to round dataset values
Exported data CSV file	`OUTPUT`	[file] 默认: `[保存到临时文件]`	Specification of the output file. One of: 保存到临时文件保存到文件…

输出

标注	名称	类型	描述
Exported data CSV file	`OUTPUT`	[file]

Python代码

Algorithm ID: native:meshexportcrosssection

import processing
processing.run("algorithm_id", {parameter_dictionary})

当你在数据处理工具箱某个算法前悬停时，算法 id 将会展现。*参数字*将会提供参数的名称与数值。参考详见`数据处理_控制台`以获取如何从Python控制台中运行数据处理算法。

28.1.8.3. Export mesh edges 

Exports a mesh layer's edges to a line vector layer, with the dataset values on edges as attribute values.

参数

标注	名称	类型	描述
Input mesh layer	`INPUT`	[mesh]	The mesh layer to export data from
Dataset groups	`DATASET_GROUPS`	[layer] [list]	The dataset groups
Dataset time	`DATASET_TIME`	[datetime]	The time range to take into account 0 --- Current canvas time 1 --- Defined date/time 2 --- Dataset group time step
Output coordinate system 可选	`CRS_OUTPUT`	[crs]	Coordinate Reference System to assign to the output
Export vector option	`VECTOR_OPTION`	[enumeration]	Coordinate type of vector value exportation. 0 --- Cartesian (x,y) 1 --- Polar (magnitude, degree) 2 --- Cartesian and polar
Output vector layer	`OUTPUT`	[vector: line] Default: `[Create temporary layer]`	Specification of the output file. One of: Create Temporary Layer (`TEMPORARY_OUTPUT`) 保存到文件… Save to Geopackage… Save to Database Table… 文件编码也可以在此更改。

输出

标注	名称	类型	描述
Output vector layer	`OUTPUT`	[vector: line]	Output vector line layer containing the edges of the input mesh layer with associated dataset values

Python代码

Algorithm ID: native:exportmeshedges

import processing
processing.run("algorithm_id", {parameter_dictionary})

当你在数据处理工具箱某个算法前悬停时，算法 id 将会展现。*参数字*将会提供参数的名称与数值。参考详见`数据处理_控制台`以获取如何从Python控制台中运行数据处理算法。

28.1.8.4. Export mesh faces 

Exports a mesh layer's faces to a polygon vector layer, with the dataset values on faces as attribute values.

参数

标注	名称	类型	描述
Input mesh layer	`INPUT`	[mesh]	The mesh layer to export data from
Dataset groups	`DATASET_GROUPS`	[layer] [list]	The dataset groups
Dataset time	`DATASET_TIME`	[datetime]	The time range to take into account 0 --- Current canvas time 1 --- Defined date/time 2 --- Dataset group time step
Output coordinate system 可选	`CRS_OUTPUT`	[crs]	Coordinate Reference System to assign to the output
Export vector option	`VECTOR_OPTION`	[enumeration]	Coordinate type of vector value exportation. 0 --- Cartesian (x,y) 1 --- Polar (magnitude, degree) 2 --- Cartesian and polar
Output vector layer	`OUTPUT`	[vector: polygon] Default: `[Create temporary layer]`	Specification of the output file. One of: Create Temporary Layer (`TEMPORARY_OUTPUT`) 保存到文件… Save to Geopackage… Save to Database Table… 文件编码也可以在此更改。

输出

标注	名称	类型	描述
Output vector layer	`OUTPUT`	[vector: polygon]	Output vector polygon layer containing the faces of the input mesh layer with associated dataset values

Python代码

Algorithm ID: native:exportmeshfaces

import processing
processing.run("algorithm_id", {parameter_dictionary})

当你在数据处理工具箱某个算法前悬停时，算法 id 将会展现。*参数字*将会提供参数的名称与数值。参考详见`数据处理_控制台`以获取如何从Python控制台中运行数据处理算法。

28.1.8.5. Export mesh on grid 

Exports a mesh layer's dataset values to a gridded point vector layer, with the dataset values on this point as attribute values.

For data on volume (3D stacked dataset values), the exported dataset values are averaged on faces using the method defined in the mesh layer properties (default is Multi level averaging method). 1D meshes are not supported.

参数

标注	名称	类型	描述
Input mesh layer	`INPUT`	[mesh]	The mesh layer to export data from
Dataset groups	`DATASET_GROUPS`	[layer] [list]	The dataset groups
Dataset time	`DATASET_TIME`	[datetime]	The time range to take into account 0 --- Current canvas time 1 --- Defined date/time 2 --- Dataset group time step
Extent 可选	`EXTENT`	[范围]	Specify the spatial extent on which to process the data. Available methods are: Calculate from layer…: uses extent of a layer loaded in the current project Calculate from layout map…: uses extent of a layout map item in the active project Calculate from bookmark…: uses extent of a saved bookmark Use map canvas extent Draw on canvas: click and drag a rectangle delimiting the area to take into account Enter the coordinates as `xmin, xmax, ymin, ymax`
Grid spacing 可选	`GRID_SPACING`	[数字] Default: 10.0	Spacing between the sample points to use
Output coordinate system 可选	`CRS_OUTPUT`	[crs]	Coordinate Reference System to assign to the output
Export vector option	`VECTOR_OPTION`	[enumeration]	Coordinate type of vector value exportation. 0 --- Cartesian (x,y) 1 --- Polar (magnitude, degree) 2 --- Cartesian and polar
Output vector layer	`OUTPUT`	[vector: point] Default: `[Create temporary layer]`	Specification of the output file. One of: Create Temporary Layer (`TEMPORARY_OUTPUT`) 保存到文件… Save to Geopackage… Save to Database Table… 文件编码也可以在此更改。

输出

标注	名称	类型	描述
Output vector layer	`OUTPUT`	[vector: point]	Output vector point layer with dataset values computed from the overlaid face.

Python代码

Algorithm ID: native:exportmeshongrid

import processing
processing.run("algorithm_id", {parameter_dictionary})

当你在数据处理工具箱某个算法前悬停时，算法 id 将会展现。*参数字*将会提供参数的名称与数值。参考详见`数据处理_控制台`以获取如何从Python控制台中运行数据处理算法。

28.1.8.6. Export mesh vertices 

Exports a mesh layer's vertices to a point vector layer, with the dataset values on vertices as attribute values.

参数

标注	名称	类型	描述
Input mesh layer	`INPUT`	[mesh]	The mesh layer to export data from
Dataset groups	`DATASET_GROUPS`	[layer] [list]	The dataset groups
Dataset time	`DATASET_TIME`	[datetime]	The time range to take into account 0 --- Current canvas time 1 --- Defined date/time 2 --- Dataset group time step
Output coordinate system 可选	`CRS_OUTPUT`	[crs]	Coordinate Reference System to assign to the output
Export vector option	`VECTOR_OPTION`	[enumeration]	Coordinate type of vector value exportation. 0 --- Cartesian (x,y) 1 --- Polar (magnitude, degree) 2 --- Cartesian and polar
Output vector layer	`OUTPUT`	[vector: point] Default: `[Create temporary layer]`	Specification of the output file. One of: Create Temporary Layer (`TEMPORARY_OUTPUT`) 保存到文件… Save to Geopackage… Save to Database Table… 文件编码也可以在此更改。

输出

标注	名称	类型	描述
Output vector layer	`OUTPUT`	[vector: point]	Output vector point layer containing the vertices of the input mesh layer with associated dataset values

Python代码

Algorithm ID: native:exportmeshvertices

import processing
processing.run("algorithm_id", {parameter_dictionary})

当你在数据处理工具箱某个算法前悬停时，算法 id 将会展现。*参数字*将会提供参数的名称与数值。参考详见`数据处理_控制台`以获取如何从Python控制台中运行数据处理算法。

28.1.8.7. Export time series values from points of a mesh dataset 

Extracts a mesh dataset's time series values from points contained in a vector layer.

If the time step is kept to its default value (0 hours), the time step used is the one of the two first datasets of the first selected dataset group.

参数

标注	名称	类型	描述
Input mesh layer	`INPUT`	[mesh]	The mesh layer to extract data from
Dataset groups	`DATASET_GROUPS`	[layer] [list]	The dataset groups
Starting time	`STARTING_TIME`	[datetime]	The start of the time range to take into account 0 --- Current canvas time 1 --- Defined date/time 2 --- Dataset group time step
Finishing time	`FINISHING_TIME`	[datetime]	The end of the time range to take into account 0 --- Current canvas time 1 --- Defined date/time 2 --- Dataset group time step
Time step (hours) 可选	`TIME_STEP`	[数字] Default: 0	Time between two consecutive steps to extract. Keep `0` to use time step of the first selected dataset group.
Points for data export	`INPUT_POINTS`	[vector: point]	Vector layer containing points where the data will be extracted from the dataset mesh
Digits count for coordinates	`COORDINATES_DIGITS`	[数字]	Number of digits to round coordinate values Default: 2
Digits count for dataset value	`DATASET_DIGITS`	[数字] Default: 2	Number of digits to round dataset values
Exported data CSV file	`OUTPUT`	[file] 默认: `[保存到临时文件]`	Specification of the output file. One of: 保存到临时文件保存到文件…

输出

标注	名称	类型	描述
Exported data CSV file	`OUTPUT`	[file]	`.CSV` file containing the mesh dataset time series values at the overlaying point features

Python代码

Algorithm ID: native:meshexporttimeseries

import processing
processing.run("algorithm_id", {parameter_dictionary})

当你在数据处理工具箱某个算法前悬停时，算法 id 将会展现。*参数字*将会提供参数的名称与数值。参考详见`数据处理_控制台`以获取如何从Python控制台中运行数据处理算法。

28.1.8.8. Rasterize mesh dataset 

Creates a raster layer from a mesh dataset.

For data on volume (3D stacked dataset values), the exported dataset values are averaged on faces using the method defined in the mesh layer properties (default is Multi level averaging method). 1D meshes are not supported.

参数

标注	名称	类型	描述
Input mesh layer	`INPUT`	[mesh]	The mesh layer to export data from
Dataset groups	`DATASET_GROUPS`	[layer] [list]	The dataset groups
Dataset time	`DATASET_TIME`	[datetime]	The time range to take into account 0 --- Current canvas time 1 --- Defined date/time 2 --- Dataset group time step
Extent 可选	`EXTENT`	[范围]	Specify the spatial extent on which to process the data. Available methods are: Calculate from layer…: uses extent of a layer loaded in the current project Calculate from layout map…: uses extent of a layout map item in the active project Calculate from bookmark…: uses extent of a saved bookmark Use map canvas extent Draw on canvas: click and drag a rectangle delimiting the area to take into account Enter the coordinates as `xmin, xmax, ymin, ymax`
Pixel size	`PIXEL_SIZE`	[数字] 默认值：1.0	Pixel size of the output raster layer.
Output coordinate system 可选	`CRS_OUTPUT`	[crs]	Coordinate Reference System to assign to the output
Output raster layer	`OUTPUT`	[栅格] 默认: `[保存到临时文件]`	Specification of the output file. One of: 保存到临时文件保存到文件…

输出

标注	名称	类型	描述
Output raster layer	`OUTPUT`	[栅格]	Output raster layer with dataset values computed from the mesh layer.

Python代码

Algorithm ID: native:meshrasterize

import processing
processing.run("algorithm_id", {parameter_dictionary})

当你在数据处理工具箱某个算法前悬停时，算法 id 将会展现。*参数字*将会提供参数的名称与数值。参考详见`数据处理_控制台`以获取如何从Python控制台中运行数据处理算法。

28.1.8.9. TIN mesh creation 

Creates a TIN mesh layer from vector layers. The TIN mesh is created using a Delaunay triangulation.

参数

标注	名称	类型	描述
Input layers	`SOURCE_DATA`	[vector: any] [list]	Vector layers to combine to generate the mesh layer
Vector layer	GUI ONLY	[vector: any] [list]	A selector for the vector layers to combine to generate the mesh layer
Value on vertex	GUI ONLY	[tablefield: any]	A selector of the field to use from the selected layer. Each vertex is assigned the corresponding value of its original feature.
Use Z-coordinate for value on vertex	GUI ONLY	[boolean] Default: False	If checked, the Z value of vector layer points or polygons/lines vertices will be used to assign the Z value of the vertex mesh layer. Only available if the input layers are 3D.
Output format	`MESH_FORMAT`	[enumeration] Default: 2DM	Output format of the generated layer 0 --- 2DM 1 --- SELAFIN 2 --- PLY 3 --- Ugrid
Output coordinate system 可选	`CRS_OUTPUT`	[crs]	Coordinate Reference System to assign to the output
Output file	`OUTPUT_MESH`	[mesh] 默认: `[保存到临时文件]`	Specification of the output file. One of: 保存到临时文件保存到文件…

输出

标注	名称	类型	描述
Output file	`OUTPUT_MESH`	[mesh]	Output mesh layer with dataset values computed from the vector layers.

Python代码

Algorithm ID: native:tinmeshcreation

import processing
processing.run("algorithm_id", {parameter_dictionary})

当你在数据处理工具箱某个算法前悬停时，算法 id 将会展现。*参数字*将会提供参数的名称与数值。参考详见`数据处理_控制台`以获取如何从Python控制台中运行数据处理算法。