Point sampling on raster

Revision as of 13:39, 26 November 2017

Click Plugins --> Manage and Install Plugins.
Type in the search bar Point sampling tool, click on the plugin name and then on Install plugin.
Load the single band raster file C_ID.tif created by Convert vector to Raster.
Load the regular grid as vector point file systeamtic_grid100.shp' created by Create regular point grid.
Open the Point Sampling Tool clicking .

1. Open Vector --> Research tools --> regular points. Set the Input extent Layer to Use layer/canvas extent.
2. Enter the number 600 (meters) to Point spacing.
3. Click Use point spacing on.
4. Enter an output shapefile name systematic_grid.shp and path by clicking Browse.
5. Confirm with Run. The new layer is added to the Layer Panel .

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-# Load the the multiband raster file ''clip_SA2_2017-03-28_pca.tif'', which should be available in the [[Course data|course data]]. It contains the first 5 component as a result of a pricipal components analysis of a Sentinel-2 scene.
+# Click {{mitem|text=Plugins --> Manage and Install Plugins}}.
+# Type in the search bar {{typed|text=Point sampling tool}}, click on the plugin name and then on {{button|text=Install plugin}}.
+# Load the single band raster file ''C_ID.tif'' created by [[Convert vector to Raster]].
+# Load the regular grid as vector point file ''systeamtic_grid100.shp''' created by [[Create regular point grid]].
+# Open the '''Point Sampling Tool''' clicking [[File:Qgis_psample_button.png]].
 ## Open {{mitem|text=Vector --> Research tools --> regular points}}. Set the {{button|text=Input extent Layer}} to ''Use layer/canvas extent''.
 ## Enter the number 600 (meters) to {{button|text=Point spacing}}.