Questions tagged [citygml]
An open data model and XML-based format for the storage and exchange of virtual 3D city model
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Create CityGML model from aerial Point Cloud data
First, sorry about my poor english.
I'm struggling to get infomation about creating CityGML data from a point cloud.
There is no exact information on how to create or generate CityGML.
In my thinking,
...
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Read xml with CurvePolygon with Geopandas / Fiona
I am trying to use the Dutch BGT Api via https://api.pdok.nl/lv/bgt/download/v1_0/ui/ with the following code:
# Native
import requests
from requests.structures import CaseInsensitiveDict
import json
...
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Adding CityGML as vector layer in QGIS
Is there a possibility to add CityGML data to my QGIS Project?
If I want to add it as a vector layer. QGIS always freezes and doesn't work anymore.
After googling I found the Plugin CityJSON but I don'...
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Predicting volume of building from CITYJSON polygon using QGIS
I must predict a volume of any selected multipolygon which is from a CITYGML file that was converted to CITYJSON with citygmltools 1.4.2 and loaded with CITYJSON Loader Plugin in QGIS 3.20.0. I can ...
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PostGIS sfcgal ST_3DArea
I want to compute surface areas of a large CityGML data set. However, I ran into some issues, which I could not resolve or fully understand.
The error message is the following:
Polygon is invalid : ...
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Combining DEM, GeoTiff and CityGML in QGIS
I'm trying to combine DEM, GeoTiff, and CityGML in QGIS to create a 3D representation like in this example.
The problem I have is that:-
The CityGML buildings are hovering above the 3D view and
The ...
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How to convert CityGML (LoD2) to Digital Surface Model?
I'm very new to GIS and doing this for a university project. For evaluating Solar Potentials on Building Roofs I want to use QGIS 3 (the UMEP Plugin, with SEBE tool). Amongst other data I need a ...
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How to use GDAL /vsizip/ to access GML file(s) from Sentinel-2 zip package
Which is the correct way to write the path through the *.Zip S2 imagery package to rich the *.GML vector file(s) ?
Does someone knows how to correctly write the path to *.GML file for using it with /...
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1
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Build CityGML Buildings from OBJ files of OpenDroneMap
I have .obj 3D mesh files after running OpenDroneMap on Drone Images. I want to convert them to CityGML buildings so that I can put them on Cesium Globe.
How can I do this?
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Visualizing LOD2/citygml in QGIS
I`d like to find out if and how it is possible to visualize LoD2 data (source:https://www.opengeodata.nrw.de/produkte/geobasis/3d-gm/) in QGIS 3.4/Madeira.
So far I managed to load them into the ...
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Impossible to export a 3D city models as KML tiles
I want to display 3D city models, stored in a CityGML file, in a Cesium Virtual Globe. I used the software "3D City Database Importer/Exporter" to store this data in a PostGreSQL/PostGIS database. ...
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Seeking CityGML Viewer for big data? [closed]
Could you suggest a solution to view CityGML data which is about 1.36GB?
I tried in fzk viewer and fme data inspector, it is very slow.
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1
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Free CityGML Editor for tag edit
I can view CityGML File in FZKViewer but is there any tool available that allow me to edit cityGML file?
I can easily open cityGML in notepad or notepad++ but its code/tag syntax is not highlighting ...
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Controlling CityGML performance?
I tried to convert single LOD3 building using FME. I am able to convert successfully from DGN to cityGML format.But when I tried to view the same in FZKViewer/FME data inspector the performance is ...
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Building footprint polygon from LoD1 CityGML 2.0 using R and sf?
I have LoD1 building data from a federal agency in Germany in the CityGML format. I would like to import and strip the data into R to get only the footprint of the buildings and an attribut about the ...
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3DCityDB Export not working
I'm working with some CityGML models within 3DCityDB.
For visualization purposes I now want to export some of my buildings to KML with the exporter tool.
When I draw the bounding box over my area of ...
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Null geometries when importing CityGML data into ArcMap and QGis
I am looking to convert a CityGML file into a shapefile to perform some spatial analysis on it. I am completely new to the CityGML format and keep running into issues when trying to import them in ...
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Convert gml to raster in QGIS
I have a dataset of type citygml (*.gml). It includes information about buildings and their rooftypes.
you can find a sample file here: https://www.opengeodata.nrw.de/produkte/geobasis/3d-gm/3d-...
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Load LoD2 files into QGIS
is it possible to load the geometry of LoD2 files in CityGML format (gml:LinearRing from bldg:GroundSurface) as GML layer in QGIS?
Here is an example content of a citygml file:
<?xml version="...
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Convert CityGML
I get CityGML Data from an OpenData Portal of a German Federal State.
Unfortunately I only have a Basic ArcGIS License, so I can't work with the Data Interoperability Extension.
I'm fine in working ...
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Extract polygon-coordinates from citygml data using citygml4j
My question is closely related to Extract geometry from citygml data using citygml4j
I have a citygml file with buildings and I need to extract the coordinates of each roof surface. I use the open ...
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solar potential analysis of 3d city model [closed]
I am looking for a free application/tool/plug-in to conduct solar potential/irradiation analysis on a 3D city model. My intention is to know how much solar energy is delivered onto the rooftops and ...
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Import 3d buildings into Cesium
I have many buildings in CityGML format. Currently cesium does not parse citygml. I tried Geojson and KML formats as in Cesium official tutorials using Sandcastle. In geojson buildings can be seen ...
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Viewing CityGML in QGIS
I'm using QGIS 2.18 (Las Palmas)
I received Data from a client in citygml-Format. The only Programm I have is QGIS and i have tried everything to open it. It only shows me 13 of 72 Objects of the ...
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Parsing CityGML with PyXB
I'm trying to parse a CityGML file in python in order to generate python objects from the buildings. Optimally the objects would have attributes corresponding to the elements in the GML, more or less ...
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Generating regular points on 3d polygon surface?
I have some CityGML buildings and I imported them into postgis database using 3d citydatabase. I want to generate points on buildings surfaces just like in the shown image. Building surfaces are ...
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Generating CityGML file with number of storey attribute values from shp file?
I am trying to convert shp file to cityGML. In shapefile I have building footprints with attributes "storey" as number of storeys. I want to match this attribute to number of storeys attributes of ...
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How to create points grid on a 3d surface with geometry polygonz in postgis?
I am using 3dCityDatabase that imports CityGML buildings to postgresql as polygonz surfaces. In order to carry out an analysis I need to create points on these building surfaces. How can I do that? ...
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Building CityGMLs with OSM, OSM2World and FME
Here is my use-case, I am looking to write a singular FME workflow that takes XMLs from Overpass (full of building ways, parts and relations), runs them through OSM2World to get OBJs and then finally ...
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CityGML: Calculate orientation and inclination angles from a polygon's LinearRing coordinates
I have multiple CityGML files of different cities. Only one of them is in such a good condition that it includes the orientation and inclination angles of every roof polygon (as a gen:stringAttribute)....
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3d city database set up problem
I am trying to set up 3d city database and I have some problems. I hope you can help me. I receive an error as you can see attaching file. What is wrong?
The error message is:
'"\psql"' is not ...
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Converting multi-geometry GML with ogr2ogr not working
I am having difficulties with GML loading in PostGIS with ogr2ogr.
It is a GML of buildingparts containing both polygons and (label)-points.
In this example (below) I have a selection of 9 objects. ...
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Setting final orientation of polygons in CityGML model
I am converting shapefile model of buildings in LoD2 to CityGML. In CityGML really matter about poylgon orientation(Countercloskwise can be seen from outside, Clockwise from inside). I have problem ...
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Enclosing building models from bottom (Missing GroundFeatures) using FME?
I have 3D building model of the city and I would like to export it to proper CityGML model.
I am trying to find out, how to make an intersection of building and terrain in order to make "...
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Editing coordinates of CityGML Building?
I'm looking for the most efficient method of editing coordinates for a building in a CityGML file. My setup:
I have a base CityGML file with a set of buildings in a defined area of the community I'm ...
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Joining Excel file with CityGML file using FME?
I want to join a excel file with a CityGML file with FME.
i want to join the excel file with the geometry of the CityGML file.
all attributes should join this file
which settings should i choose ...
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Converting citygml to KML?
I am trying to render citygml files. I am using NWW for rendering purpose. I have used citygml4j library to extract the GroundSurface, roof, and walls geometry, and was able to render them. But due to ...
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Extract geometry from citygml data using citygml4j
I have a citygml file with some buildings. And I am trying to extract the geometry of the polygon in that building using the citygml4j library. I have looked at the FeatureWalker class but I am unable ...
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RDF representation of 3D-geodata?
When it comes to 2D-data it seems there are a couple standards out there to represent it in a semantic way (GeoSPARQL, NeoGeo, ...). However I couldn't really find one to do that for 3D-data. I have ...
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Seeking a gvSIG plugin to go from shp to kml to cityGML
I'm looking for a gvSIG plugin to convert .shp to .kml and then to .cityGML.
I'm working with gvSIG + 3D extension and I have .shp format data but I need it in .cityGML format.
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Linux Tool to visualize CityGML file
I am looking for a linux program that allows me to visualize CityGML models (3D). I have tried a whole bunch so far (most of them via wine but also native ones) but I couldn't get a single one of them ...
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Is there an open source GIS to view and edit CityGML models?
I'm looking for an open source GIS that supports viewing and editing of CityGML models.
So far, I've found a list of open source applications that support CityGML, but they all seem to be stand-...
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Using CityGML data with ArcGIS Desktop or QGIS?
I'm looking for advice on how best to use the CityGML data-structure and GIS (preferably ArcGIS/QGIS). I've read through their website and wiki and saw a list of software here that can be used to view ...
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