New answers tagged 3d
I'm not sure about NVIZ. I would suggest, as an alternative, you look at another QGIS plugin called Qgis2threejs [https://plugins.qgis.org/plugins/Qgis2threejs/]. It can produce higher resolution 3D images than the examples loaded above. See these blogs: http://anitagraser.com/2014/03/15/3d-viz-with-qgis-three-js/ ...
Export your terrain object from SketchUp as a .dae file (or .kmz if you're using the free version - rename the .kmz extension to .zip and extract it find the .dae file inside) Open the .dae mesh in Meshlab (free) and export mesh to .xyz points format, ignoring normals. Now, you can add the .xyz as a layer using 'add delimited text layer'. Specify your x and ...
I would suggest that you take a good look at Geo-reka. It's a new kid on the 3D modelling block, but it is polished, intuitive and very easy to learn. It is and will be constantly evolving and is priced perfectly for consultants and students and universities are encouraged to ask about academic discounts There's a free one-month trial ...
Check if your column type is geometry if so you need to convert into ALTER TABLE trajectories ALTER COLUMN geom TYPE geometry(MultiLineStringZ) USING ST_Force_3D(geom); This will force the column to hold Z value.
Installing the standalone installer worked for me (winGRASS 6.4 standalone installer) http://grass.osgeo.org/grass64/binary/mswindows/native/WinGRASS-6.4.4-1-Setup.exe
A start-up, GaiaStudio, provides software as a service for 3D visualization of terrestrial ecosystems. (http://gaiastudio.ca) The visualization is based on forest inventory and forest-growth projections. By using simulated projections, GaiaStudio can visualize the state of the forest in any future point of time. The demo server holds information on seven ...
When there is no implicit cast between two datatypes you need to state it explicitly. In your case ST_Force_3D (or ST_Force3D for PostGIS 2.1 and later) should do the trick: ALTER TABLE cl ALTER COLUMN geom TYPE geometry(MultiLineStringZ) USING ST_Force_3D(geom);
From my understanding the current version of QGIS does not have 3D capabilities. You would have do, as you stated, 3D work in PostGIS or Spatialite. There may be a method to do the 3D functions you are inquiring about in Grass, which has a QGIS plugin.
Yes, the default SRID in PostGIS is zero meaning unknown or local coordinate system. You can take advantage of all geometry-based queries and functions -- except any that transform or project between known coordinate systems. (Geography-based queries and functions won't make any sense.)
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