Questions related to GIS objects that have three dimensions.

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2
votes
1answer
172 views

ESRI Drone2Map - how to use “texture” image.

ESRI's Drone2Map beta produces various outputs; LAS, dem, hillshade, orthomosiac, etc. One of these is "Texture.jpg" file. This image is not projected but it looks like as if I should be able to ...
2
votes
0answers
35 views

QGIS2threejs scale bar and north arrow

I am wondering is it possible to have scale bar and north arrow in 3D view when viewing in browser and also when saving image.
2
votes
1answer
85 views

Visualize PostGIS 3D line geometry [closed]

I have PostGIS table with 2 geometries ( "GEOMETRY(MULTILINESTRINGZ)" and "GEOMETRY(LINESTRINGZ)" ). There are lines made just from 2 points - XY are WGS and both of them have random elevation Z (I ...
2
votes
0answers
53 views

3D model to DEM, maintain volume?

Bit of a challenge here which I've been grappling with for some time. I'll explain my full work flow so you can reproduce if needed. I'm creating virtual landscapes in Google SketchUp which I ...
2
votes
0answers
92 views

How to create isometric 3D map with postgis

I am looking for a way to create isometric 3D maps based on data stored in a PostGIS database. My idea is to create a PostGIS function that will return a SVG image like the one below. It is easy to ...
2
votes
0answers
81 views

Creating a 3D model of airspace that I can interrogate to see if some other feature (like a tree) will intrude into the airspace

The goal is to create a 3D model of imaginary planes in space that I can interrogate to see where other objects in the vicinity of the model cut through any part of that plane. For example, an ...
2
votes
0answers
307 views

ArcGIS - multipatch and surface

I want to get 3D building. I have DEM surface and 3D feature of building roof. I created multipatch class by extruded building roof with '-' value. Is it possible to create building from this ...
2
votes
2answers
74 views

3D queryable GIS

I've used GIS for many years, and now I'm moving into 3D GIS, but I have some questions. Say I have a 3D model of a viliage, I can get this into Blender, but I want to be able to run GIS type queries....
2
votes
1answer
1k views

Creating 3D terrain/model from contour lines, preferably using Open Source GIS?

I am looking to create 3D terrain from a contour map that I have (originally inside a PDF). The contour lines are able to be viewed as paths in Adobe Illustrator. There are two types of lines: 7m and ...
2
votes
0answers
40 views

3D topographic progress compensation by the least squares method

I'm looking for an explanation of the least squares method used in the case of a correction of 3D point network. We have reference points with known coordinates XYZ. We calculate intermediate points ...
2
votes
0answers
161 views

3D marker symbol export problem (ArcGIS 10.2)

I am trying to create a webscene. I have a TIN and a point layer that is 3d enabled (point z). I added a 3d symbol marker to the point layer in ArcScene . When I use the "export to 3d web scene" ...
2
votes
0answers
401 views

LiDAR point cloud to 3D model of street [duplicate]

I am looking for a way to convert point cloud collected through a Riegl LiDAR scanner to a perfect 3D model of a town. The sample data is from vehicle mounted scanner, but final data is going to be ...
2
votes
1answer
90 views

QGIS 25D shapefiles

I do know QGIS doesnt so far make use of 25/3D files, but If I do make use of 3D points from a say GPX file and thereafter, using snap, generate a new polygone shapefile. Will the z-coords be kept ...
2
votes
0answers
253 views

3D visualization of terrain data and orthophoto using GRASS NVIZ via QGIS

How can I make 3D visualization of terrain data and orthophoto using GRASS NVIZ via QGIS? I am quite new with GRASS. I have only managed to get a 3D view of the terrain so far.
2
votes
0answers
204 views

Buildings missing texture in 3d web scene exported from ArcScene

A random sampling of buildings are missing textures. The models were made in Sketchup 8 and exported to COLLADA, then dropped in ArcScene. All of the textures are .jpg files. The models look fine in ...
2
votes
0answers
218 views

How to display images as cross sections in 3d

I want to display a base map and several vertical cross sections in 3D. The base map image is easy to rectify as a geotiff. How can I also display the cross sections? The cross sections are at ...
2
votes
0answers
152 views

How can I create planar slices of a 3D object to quantify voids?

We are trying to quantify the void space in a 3D object, very similar to measuring the holes in cube of swiss cheese. I need to measure cross sectional areas and study the shape of the voids and we ...
2
votes
1answer
77 views

Geoprocessing in 3D [closed]

I am looking for some advice regarding suitable software for geoprocessing in three dimensions. Specifically, I need to regularly undertake the following tasks: Intersect a line with a surface and ...
2
votes
0answers
450 views

3D features (Polyline, Polygon) intersection library

For my research I am looking for a (python) library to get the intersection of some 3D features. The features can be Polygons or Polylines. Mostly I need to intersect a plane with my features and get ...
2
votes
1answer
252 views

iPhone app to record 3D location information

Does anyone know of an app that would run on an iPhone or iTouch that would record the X,Y and Z information from an external GPS? I am using a Dual XGPS150 Bluetooth receiver. The GPS will record X,...
2
votes
2answers
975 views

Converting Shapefile to X3D format?

Does anyone know of an effective workflow to convert 3d-enabled shapefiles to X3D format? I have several projects containing anywhere from 10 to 5000 features (building sections) that I would like to ...
2
votes
1answer
391 views

Polyline ZM: automatic vertex height errors correction

Paolo I've got many rivers (polylines ZM) with a lot of height errors in Polylines 'vertices. Vertices' Z errors are not all equal in height (i.e. they are not all at zero height). I must create a TIN ...
2
votes
1answer
197 views

3d arcgis raster .tiff image to CFD software

I am trying to export 3d raster image prepared in ArcGIS to cfd package such as Fluent. I was wondering if anyone has experience to convert raster image to autocad 3d format, stl, vrml or any other ...
2
votes
0answers
190 views

Data source for 3D buildings (germany) [duplicate]

I'm searching for a data base or webservice, that provides buildings at a level of detail (LOD) of cuboid (length,width,height) or roof, corners, etc or better. The area should cover germany. I'...
2
votes
0answers
97 views

Determine which points fall within a 3D polygon and export this subset to a flat file

I am working in ArcMap 10 and will have a 3D representation of a zone of transmission. I would like to determine which GPS points fall within this polygon and then export this subset out to a flat ...
2
votes
0answers
252 views

Layer 3D to Feature Class Empty Output

I'm trying to build 3D buildings from 2D footprints. I extrude by the building heights, and input the surface by editing the properties. From here I use the Layer 3D to Feature Class tool to convert ...
2
votes
3answers
755 views

Importing MaxSea 3D Database to PostGIS

I am currently working on a project, where I combine several MaxSea 3D databases, which contain depth measurements made by the echosounder onboard on a ship. The idea is to combine these databases to ...
1
vote
5answers
3k views

export 3D data dxf file

I'm trying to export a DXF file from Qgis1.8.0 Lisboa and can not have a 3Dfile in Autocad! Or micristation. It results always in 2D file. How can I export height data from a shape file in Qgis? ...
1
vote
2answers
224 views

Digitizing map into three dimension?

Can somebody help me in making 3-dimensional map from 2-dimensional??some software reference or some tool which can do this. I know the height of the building and other aspects....
1
vote
1answer
299 views

Any GIS program with GPX support and free hand selection tool?

I'm looking for GIS program that has good support for KML/KMZ or GPX route files and also has free hand selection tool. Right now I use 3dem and it would be perfect for my needs if only it had that ...
1
vote
2answers
279 views

Cross-platform 3D mapping solutions

I am a new software developer who created an application at my work that continually displays content on the Google Earth desktop application using KML. My work now would like a mobile solution to my ...
1
vote
1answer
96 views

Conversion from Point 2D to Point 3D with measures

I have a number of PostgreSQL empty tables I am trying to setup for my data. I added the Point Geometry to one but later discovered it is X,Y aware and not X,Y,Z aware. How can I change this? I could ...
1
vote
1answer
62 views

what is result from cut fill operation?

A calculate volume of lake from rasters with cut fill tools. I got a result and i dont know what is right result. In the table are two collums COUNT and VOLUME maybe i have to count multiply volume ...
1
vote
2answers
154 views

creating GIS data directly on camera images

If I'm taking few photos with superimposition and enabling a stereo system for images pairs, Is there a software for 3D or 2D calibrating that will enable then creating GIS vector data directly on ...
1
vote
1answer
763 views

ArcScene3D layer rendering problem [duplicate]

I'm having problem with ArcScene. I'm doing a project on the visual impact of felling areas of forest in locations regularly visited/used by people. I have viewpoints and have created a TIN model ...
1
vote
1answer
280 views

What are use cases of Esri's CityEngine?

I would like to know the use cases of Esri's CityEngine, and what distinguish this tool from the other standard GIS like ArcMap and QGIS? and in which fields could be used ?
1
vote
1answer
1k views

How to create a 3D shapefile from a raster?

I´m trying to make a 3D shapefile from a raster feature but not working. Tried already to run the command in OSGeo4W but nothing happen. I'm using the Qgis 1.8.0 Lisboa. The purpose is to get a final ...
1
vote
1answer
47 views

How to do diagram block with open source software?

I would like to do a block diagram (topographic and geological representation). Is it possible to do this with QGIS (or other open source software), in Windows 7?
1
vote
1answer
187 views

Cesium: Failed to obtain image tile X : 0 Y : 0 Level : 0

I'm trying to make a Cesium-based 3D web-viewer. At the moment I'm stuck with an error. Let me describe the situation: I have a PostGIS database, containing the 3D geometry of a building (which I ...
1
vote
2answers
173 views

Can QGIS import Multipatch geometry type?

can QGIS import multipatch 3d geometry type? What is the data structure of multipatch how computer record and draws it ? Is it solid or not??
1
vote
1answer
63 views

Donut polygons getting filled when exporting to 3d Web Scene

I have built a model using ArcScene by draping 2D polygon data over an elevation raster and am having issues when using the Export to 3D Web Scene tool. The tool builds the model successfully, but ...
1
vote
1answer
310 views

Does ol3-cesium accept DEM files?

I'm using OpenLayers 3.6.0. I want to use ol3-cesium. Ol3-cesium use cesium for glob visualization. I have a question: In ol3-cesium, Can I see Ups and downs of land? In other words Does it accept ...
1
vote
1answer
281 views

How to increase the resolution of a 3D image in QGIS GRASS NVIZ

I'm trying to display 3D data in NVIZ within QGIS, but the result appears very low resolution in comparison to the same data in ArcScene. Any ideas as to how to improve the quality would be greatly ...
1
vote
2answers
242 views

Software to detect intersections (within a tolerance) between 3d polylines

Is there any way to detect intersections (within a tolerance) for a 3d set of polylines? ArcGIS Topology Check seems to project everything into 2d (x-y plane) before checking, so shows a lot of false ...
1
vote
1answer
173 views

Possible to store 3D features such as dome into geospatial database?

Is it possible to store 3D features such as dome into geospatial database such as PostGIS? I know that it can store x,y,z data, can such complex features be stored into database?
1
vote
1answer
797 views

Where can I obtain 3D data for Singapore?

I am looking for providers of 3D maps/models of Singapore. This might be either from photogrammetry/laser techniques or based on a DEM + building footprints/landuse with a height attribute. Is any ...
1
vote
1answer
182 views

display 3D raster/vector in GRASS 7.0 from command line

I am using GRASS 7.0 on ubuntu linux 12.04 x64. I am working through some GRASS tutorials and am able to get a 3d raster to show up when I use the GUI. However, I cannot get the command line interface ...
1
vote
1answer
2k views

VRML export issue ArcScene

when I try to export simple Tins (or documents which contain Tins) from my ArcScene to .wrl the export fails. Please see my example: I have the following table (xlsx): X Y hoehe 28 -2 0 -2 -...
1
vote
3answers
657 views

Point to Raster Issues

I am having some trouble with something fairly simple.. I am creating a 3D subsoil model for display in arcscene - i can get it displayed nicely as points but in order for the model to be easier to ...
1
vote
1answer
69 views

How to digitize 3D geospatial data using FOSS applications

I need to digitize soil horizon data from photos to be later used in a 3-dimensional GIS workflow. For each photo I have DGPS coordinates of the top left and right corner and the depth of the profile....