Blog : CAD L2 (Medium)

28
JUN.18
Spatial filter Views in PostGIS or SQL Server

While many ‘Spatial Manager’ users operate with spatial databases, such as PostGIS or SQL Server Spatial, very few know that database Views are processed in this application in the same way as database Tables. In the sample shown in this... more


19
JUN.18
Importing LiDAR data

LiDAR (Light Detection And Ranging) is a surveying method that measures distance to a target by illuminating the target with pulsed laser light and measuring the reflected pulses with a sensor. Differences in laser return times and wavelengths can then... more


12
JUN.18
Importing geo-referenced Raster Images

Raster geo-referenced image files are widely used by anyone working in GIS or Mapping environments because they can include orthophotos, scanned geographic areas or details, information overlays, etc. Although almost all CAD applications have tools for attaching raster images... more


05
JUN.18
Coordinate Systems and Transformations detailed info

An application whose primary focus is the spatial information handling (such as ‘Spatial Manager’), must include specific functionalities related to Coordinate Reference Systems (CRSs) and Transformations of geographic data (vector or raster) between different CRSs... more


27
MAY.18
Export and import Hatches properties

For designers and users of geographic information in all its scope, the use of different shapes and sizes of polygonal fills allows to quickly and visually differentiate areas of a map that represent different phenomena, conditions or status: population... more


15
MAY.18
Reducing images size when Publishing to Google Earth

Under certain conditions, displaying large images on ‘Google Earth’ may cause problems. These images can be replaced by a “cross” in order to indicate that the real image cannot be loaded on the map. Other times, images may be... more