This algorithm extracts point features corresponding to the minimum
and maximum pixel values contained within polygon zones.
The output will contain one point feature for the minimum and one
for the maximum raster value for every individual zonal feature
from a polygon layer.
This algorithm extracts extrema (minimum and maximum) values
from a given band of the raster layer.
The output is a vector layer containing point features for
the selected extrema, at the center of the associated pixel.
If multiple pixels in the raster share the minimum or maximum
value, then only one of these pixels will be included in the output.
The algorithm uses raster iterator to remain efficient on huge
rasters, and does not require reading the entire raster to
memory
The creategrid algorithm had a limit of 0 to 1000000000.0.
I'm removing this limitation to go beyond this maximum limit, but above all to
allow a negative limit, which in fact allows an empty space
(the opposite of superposition).
digital elevation model in order to classify pixels into ground
and non-ground cells
This is a port of the SAGA "DTM Filter (slope-based)" tool to a native
QGIS algorithm.
It also serves as a nice reference algorithm for raster based tools
which operate on a neighbourhood of pixels.
algorithm
If checked, then any disjoint parts in the buffer results will be
output as separate single-part features. This setting is designed
to expose a similar functionality as is available for the 'dissolve'
algorithm.
Sponsored by City of Canning
