This tool can be used to convert a vector points file into a raster grid. The user must specify the name of the input vector and the output raster file. The field name (field) is the field from the attributes table from which the tool will retrieve the information to assign to grid cells in the output raster. The field must contain numerical data. If the user does not supply a field name parameter, each feature in the raster will be assigned the record number of the feature. The assignment operation determines how the situation of multiple points contained within the same grid cell is handled. The background value is zero by default but can be set to NoData optionally using the nodata value.

If the user optionally specifies the grid cell size parameter (cell_size) then the coordinates will be determined by the input vector (i.e. the bounding box) and the specified cell size. This will also determine the number of rows and columns in the output raster. If the user instead specifies the optional base raster file parameter (base), the output raster's coordinates (i.e. north, south, east, west) and row and column count will be the same as the base file.

In the case that multiple points are contained within a single grid cell, the output can be assigned (assign) the first, last (default), min, max, sum, mean, or number of the contained points.

See Also

vector_polygons_to_raster, vector_lines_to_raster

Function Signature

def vector_points_to_raster(self, input: Vector, field_name: str = "FID", assign_op: str = "last", zero_background: bool = False, cell_size: float = 0.0, base_raster: Raster = None) -> Raster: ...

Project Links

WbW Homepage User Manual Support WbW