How to digitize building footprints with orthogonal edges?
Hiking & ActivitiesHow do I digitize a building in QGIS? To start digitizing the field, Open the downloaded raster imagery using ‘Add Raster Layer’ tool . This Opens the image in the QGIS map space along with the newly created polygon shapefile. Check if the Digitizing tools are available in the toolbar, if not right-click on the
Displaying dynamic text from layer other than index on Data Driven Pages?
Hiking & ActivitiesHow do I add dynamic text in Arcgis? Add dynamic text to your layout With a layout view active, on the Insert tab, in the Graphics and Text group, click the Dynamic Text button . Choose a dynamic text tag from the gallery. In the layout view, click and drag a box in the desired
Import error:No module named _gdal
Hiking & ActivitiesHow do I import GDAL? From the command prompt type python to start an interactive session. Once the session has started you will see a description of your python version followed by >>> indicating that the next code you type will be interpreted by python. Type from osgeo import gdal and hit Enter. How to
Update Labels Arcpy
Hiking & ActivitiesHow do I change labels in ArcMap? You can set a default font name and font size to be used when labeling on the ArcMap Options dialog box. Click the Label Manager button. on the Labeling toolbar. Click a label class in the Label Classes list. Choose whether to change the text symbol or to
Linestrings into one multilinestring
Hiking & ActivitiesHow to convert MultiLineString to Linestring in PostGIS? Linked Create a line string from street geometry. Closing a concave V-shaped MultiLineString in PostGIS to form a Polygon. Union multiple LineStrings and convert MultiLineString to Linestring. st_startpoint(the_geom) returning empty values. Convert invalid multilinestring to linestring with recursive ST_Union PostGIS. What is a MultiLineString? A multilinestring is
Download new SRTM 30 meters
Hiking & ActivitiesHow to download SRTM 30m dem? Where can you download the SRTM data? SRTM DEM data is being housed on the USGS Earth Explorer. To download, select your area of interest. Under the data sets tab, select Digital Elevation > SRTM > SRTM 1-ArcSecond Global. How can I download NASA SRTM data? The data may