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Jun
6
comment How to add polygon height in QGIS or PostGIS?
Then I would suggest that you state that a little more clearly in your comments. Also, the title of the question should better reflect the question that is being asked.
Jun
6
comment How to select zip codes without using the lasso tool
A spatial join will intersect the zip code polygons, and put the attribute of the zip code in the point layer attribute table. With the attributes in the point layer, you can then perform SQL queries as needed, without any manual selections.
Jun
6
comment How to add polygon height in QGIS or PostGIS?
Technically no it doesn't, you are not viewing it in QGIS. QGIS provided the means to prep the data for viewing in a different viewing software, such as exporting a KML for viewing in Google Earth. However, in this case, you will want to have an attribute that has a height value, which will be used to extrude. This process is referred to as 2.5D, as it does not have 3D geometries.
Jun
6
revised How to add polygon height in QGIS or PostGIS?
deleted 1 character in body
Jun
6
answered How to add polygon height in QGIS or PostGIS?
Jun
5
reviewed Approve suggested edit on how to not print scalebar and how to print the zoom bar that shows on map
Jun
4
revised Get the different values assigned to a zip code
edited title
Jun
3
answered Which function is most appropriate to select postgis geometries that have any part inside another?
Jun
2
answered Does Collada allow to georeference the 3D coordinates within a DAE file?
Jun
2
answered file formats to represent georeferenced 3D data
May
31
answered Counting raster points within boundaries in another layer?
May
28
reviewed Approve suggested edit on Min - Max within a zip code (statistics by area)
May
28
answered Z values all equal 0
May
28
revised Z values all equal 0
added 3 characters in body
May
28
comment How to extract Z data from a point layer
I have never had an issue with this process. An alternative is to use GME (Geospatial Modeling Environment) spatialecology.com/gme and use the isectpntrst tool
May
28
answered How to extract Z data from a point layer
May
28
answered How to create a TIN from UAV images or Google Earth images
May
28
comment How to create a TIN from UAV images or Google Earth images
No, the joining of images will only give you a mosaic (single image for visual...pretty picture). You need to have a software (PhotoSynth or SimActive) that can make a point cloud from multiple images). I suggest you continue looking online at options. There are some pages dedicated to this process. I have seen someone put up a full workflow using a SenseFly UAV.
May
28
answered How to create a TIN from UAV images or Google Earth images
May
28
reviewed Reject suggested edit on QGIS display does not reflect projection