Making a 3D map with shapefiles, lidar and aerial image data
Geographic Information SystemsHow to use LiDAR in ArcMap? Procedure Create a LAS dataset. Double-click the LAS dataset. Click the LAS Files tab > Add Files. Open the LAS File Properties and Statistics window by clicking the button below the Statistics column. Click Calculate, and click OK. In the LAS Dataset Properties dialog box, click OK. Open the
How to change color result from Zoom Map to the Selected Row in QGIS?
Geographic Information SystemsHow do I change the color of a selection in Qgis? By default, when you select a map feature in QGIS, the feature is shown using a Yellow colour. However, choosing Settings > Options > on the Canvas & Legend Tab > and the Default Map Appearance section you can change the default selection colour
Getting Spyder IDE to work with QGIS?
Geographic Information SystemsHow do I use QGIS in Spyder? I chose the second option due to the reasons explained below. Install QGIS libraries in default Python environment. conda install -c conda-forge qgis. Create virtual environment and install required libraries. For every time a new package needs to be tested this is my go to method. How
ArcGIS Add Join Attribute Table on ModelBuilder
Geographic Information SystemsHow do I join an attribute table in ArcGIS? Joining attributes in one table to another In the table of contents, right-click the layer or table you want to join, point to Joins and Relates, then click Join. Click the What do you want to join to this layer? Click the field on which the
Styling map elements based on their properties
Geographic Information SystemsWhat is map styling? Style Your Map Map styling allows colors on the map to be changed and items to be hidden. Our predefined styles include dark maps, light maps, enhanced colors, and label changes. Google’s Map Style wizard allow map styles to be created easily. Snazzy Maps has a variety of user created styles
Seeking World Land Cover data
Geographic Information SystemsWhere can I get land cover data? The National Land Cover Database (NLCD) provides nation-wide data on land cover and land cover change at the Landsat Thematic Mapper (TM) 30-meter resolution. What type of data is National land cover Dataset? NLCD provides spatial reference and descriptive data for characteristics of the land surface such as
NMEA Data Feed into QGIS
Geographic Information SystemsHow do I read NMEA GPS data? To read NMEA GPS data, Find an application such as AT Command Tester that can parse data from the NMEA port. Connect the GPS device over the interface that is supported by the device. Display NMEA GPS data read from the NMEA port. What is NMEA data format?
Converting files with ogr2ogr and dropping ALL attribute fields
Geographic Information SystemsWhat formats does ogr2ogr output in? Ogr supports many data formats here is a subset of the ones we commonly use: ESRI Shapefile, MapInfo Tab file, CSV, DBF, GML, KML, Interlis, SQLite, GeoPackage,SpatiaLite, ODBC, ESRI GeoDatabase (MDB format), ESRI GDB database, PostGIS/PostgreSQL, MySQL. What does ogr2ogr do? The ogr2ogr command line program can be used
Why does an 32-bit FGDB raster have a smaller file size than 8-bit?
Geographic Information SystemsWhat is pixel depth in raster? The bit depth (pixel depth) of a pixel determines the range of values that a particular raster file can store, which is based on the formula 2n (where n is the bit depth). For example, an 8-bit raster can have 256 unique values that range from 0 to 255.
Working with spatial data for India when key state truncated due to territory issues?
Geographic Information SystemsWhat are the 4 spatial features of spatial data? Important characteristics of spatial data are its measurement level, map scale and associated topological information. Nominal, ordinal, interval and ratio are the four levels of measurement for populating the spatial data matrix; they hold different amounts of information and determine what analysis can be performed. What