I am working on point data (x, y, z) in meters from origin. I have between 24 and 35 points for each plot (10mx10m), with random locations. I would like to modelise topography over the whole plot in order to calculate mean slope in 1m x 1m subplot in QGIS.
X Y Z 0 0 0 -1,327 7,902 -1,656 7,122 -2,309 -1,627 1,964 -5,87 0,569 -6,443 -0,306 1,184 -0,458 7,322 -1,612 0,336 6,808 -1,603 -0,164 6,036 -1,294
I looked at zone statistics, but I need a raster to use it. I also looked at GRASS to make a raster but it seems that I should have a regular grid, yet I know it is possible to get quite nice results with other softwares such as Surfer.
I am new to QGIS (and GIS in general).