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wxGUI Raster DigitizerKEYWORDSdisplay, GUI, raster, editing, digitizerDESCRIPTIONRaster Digitizer is a simple tool to quickly to draw lines, areas, and circles and save these features in a raster map. It is accessible from Map Display toolbar (from the combo box on the right).Raster Digitizer currently allows you to:
The typical workflow includes these steps:
NOTESRaster Digitizer respects computational region including the currently set resolution.EXAMPLESIn the following figures we start with elev_lid792_1m raster map in North carolina sample dataset and digitize two buildings, one rectangular and one with circular footprint. Both buildings have the roof level at 130 m. We set the width when digitizing the point to 50 meters which results in the building having 50 m in diameter. When we are done with digitizing, we save the result and explore cast shadows of the buildings with r.sun module:g.region raster=elev_lid792_1m # now create elev_edited raster by digitizing and save r.slope.aspect elevation=elev_edited slope=elev_slope aspect=elev_aspect r.sun elevation=elev_edited aspect=elev_aspect slope=elev_slope beam_rad=beam day=172 time=6 Figure: Steps to digitize new buildings on elev_lid792_1m raster map. SEE ALSOwxGUIwxGUI components, r.in.poly (backend of digitizer), g.gui.vdigit AUTHORAnna Petrasova, NCSU GeoForALL LaboratorySOURCE CODEAvailable at: wxGUI Raster Digitizer source code (history)Main index | Wxgui index | Topics index | Keywords index | Graphical index | Full index © 2003-2021 GRASS Development Team, GRASS GIS 7.8.6 Reference Manual
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