Questions tagged [footprint]

Generally means 'the area covered by' - especially when referring to buildings and the ground.

Filter by
Sorted by
Tagged with
0 votes
0 answers
24 views

Computing drone camera footprint over a DTM

I am developing a Python application to compute the footprint of aerial videos. I am able to compute the footprint when the sensor is parallel to the terrain and the terrain surface is plane. Now, I ...
user avatar
1 vote
0 answers
64 views

PostGIS - Area inside or outside w.r.t. a polygon

I need to check if a specific point belongs to the area defined by a polygon on a map using PostGIS. How can I specify if the area to be considered is either the one "inside" the polygon, or ...
user avatar
  • 41
0 votes
0 answers
24 views

Extracting Raster Footprint in ArcMap [duplicate]

I suspect this question already exists, but I have been unsuccessful in finding one yet. I have a series of 9 rasters (PNG files) in ArcMap. I need the footprint (or extent) of each of these rasters ...
user avatar
  • 29.2k
1 vote
0 answers
20 views

Choosing geospatial statistical test using building characteristics and distance together

New to geospatial analyses and I am trying to assign a building footprint to be a type of building (e.g., industrial building). In another dataset, we have determined the average building area, ...
user avatar
3 votes
0 answers
88 views

Making square footprint polygons in QGIS

We are a group of students working with footprint taken from LiDAR point cloud. We have a challenge in making the polygons more square. We want the angles to be orthogonal, and the sides to be longer ...
user avatar
2 votes
1 answer
180 views

Get footprint or boundary of LIDAR data

I am using the lidR package in R to manage my ALS data. I was having problems generating DTMs on the edge files of my catalog because the tool lidR::grid_terrain() was doing some interpolation between ...
user avatar
3 votes
1 answer
861 views

Calculate Azimuth from polygon in GeoPandas

Is there a simple way / ready-to-go function to calculate the azimuth of 2D-polygons in a GeoPandas DataFrame? My goal is to eventually compute azimuth angles of building footprints. Most of the ...
user avatar
  • 165
1 vote
2 answers
59 views

Trying to find historical building footprints or centroids [closed]

I'm currently doing a research project analyzing how cities evolve over time and was wondering if there were any good online databases for finding historical building footprints. I've been looking ...
user avatar
  • 21
1 vote
0 answers
62 views

Draw ellipse based on values within an attribute table

I would like to be able to draw and ellipse on a map based on values within an attributes table. At the moment I have 6 transects at a site with values based on IQI (Infaunal Quality Index) values; ...
user avatar
1 vote
0 answers
15 views

Identifying the position of a building footprint on a land parcel [closed]

I am looking to try classify where a building footprint falls on a land parcel. I have identified the amount of free space that is available on a land parcel and am looking to try quantify this ...
user avatar
0 votes
1 answer
107 views

Returning centroid coordinates from footprint coordinates using QGIS

I have a set of footprint coordinates in KML. However I do not have the building coordinates. How do I return building's centroid (single point) by using the footprint coordinates in KML using QGIS?
user avatar
3 votes
1 answer
96 views

Drone Imagery Footprints & Quaternions [closed]

I'm trying to use Drone Imagery Metadata to plot precise (or nearly precise) Imagery footprints on the the ground and I need some help with Photogrammetry / Trigonometry / Quaternions My repo is ...
user avatar
  • 567
0 votes
0 answers
26 views

What is the UOM of Microsoft Footprint 2017 height data

It says on the website that height's unit of measurement of MSFP 2017 is in meters. However, as I looked into some real building examples on Google Map street view, they height looks very inaccurate (...
user avatar
  • 1
2 votes
0 answers
158 views

QGIS Joining Parcel Polygons where overlay of Building Footprints crosses Multiple Parcels

QGIS 3.4.4 Polygon Layer 1 = Land Parcels Polygon Layer 2 = Building Footprints Some buildings exist across several parcels. How can I use the information in Layer 2 (red in the image below) to ...
user avatar
1 vote
0 answers
268 views

Visualizing LiDAR data in a detailed footprint of rooftops with ArcGIS [closed]

For the last couple of weeks, I have been doing a research for making a detailed footprint with LiDAR data. The detailed footprint is needed for visualizing a 3D model. With a detailed footprint I ...
user avatar
  • 11
0 votes
2 answers
520 views

Creating raster from selection of footprints in Mosaic Dataset?

I am working with thousands of DEM tiles, so I have put them into a Mosaic Dataset. (Please give me feedback if this is not the best way to handle this amount of data). I was given DEM tiles that ...
user avatar
2 votes
0 answers
176 views

Extract building footprints using a Normalized Digital Surface Model on eCognition [closed]

I have created a normalized Digital Surface Model (nDSM) by subtracting DEM from DSM. I have set a threshold value of 2 meters in order to eliminate objects such as shrubs, cars etc. Is there any ...
user avatar
  • 91
0 votes
1 answer
388 views

PostGIS intersect query: Raster footprints of multiple high resolution GeoTIFF's or not? [closed]

I have multiple (381) high resolution GeoTIFF's (2x2 meter resolution, 1 band, 700 MB each) that I somehow want to upload to a PostGIS-server to be able to run ST_intersects or ST_3Dintersects queries ...
user avatar
  • 637
-1 votes
2 answers
269 views

How to simplify and reduce noise from this shapefiles and get clean and proper buildings in ArcGIS? [closed]

The image being provided is very irregular and includes alot of noise. How can I: Remove irregular noise Show regular buildings
user avatar
1 vote
0 answers
697 views

Building footprint extraction in automated way [closed]

I am trying to extract building footprints automatically (even semi automated way will do) from 0.5mts optical imagery. Currently my study area is Poland, however I would love to have a way that will ...
user avatar
  • 11
2 votes
1 answer
280 views

Building footprints of the city of Guayaquil, Ecuador

Does anyone have/know where I can find a shapefile/dataset of the building footprints of the city of Guayaquil in Ecuador? this type of information is so hard to get here in Ecuador. I went through ...
user avatar
0 votes
1 answer
132 views

Updating field values of footprint attribute table from an excel sheet

We have 60 - 70 footprints for which the attributes are to be updated for 25 columns. Some of the columns will have coded values (Eg: Country, Metadata standard, Language). I've slightly modified the ...
user avatar
  • 1,391
2 votes
0 answers
95 views

Automating polygon "useable area" check in QGIS? [closed]

I need to run a query that will identify all property remainders (available land for construction purposes) that can accommodate a 40m² building footprint (must be square). I have used imagery ...
user avatar
1 vote
1 answer
228 views

Mosaic Dataset Footprint Field ordering

Is there any to order the Foot Print fields created in Raster Mosaic Dataset? I know, we can edit, or reorder fields of any FeatureClass, or Shapefile using X-Ray ArcCatalog, ArcGIS Diagrammer., ...
user avatar
  • 101
0 votes
1 answer
570 views

Working with 2D building footprints and ArcGIS Pro / CityEngine

I've been trying for a few days now to create 3D buildings from my 2D building footprints. All the tutorials I've been through let me down right where it counts so I've decided to ask the pro's here. ...
user avatar
3 votes
1 answer
326 views

Calculation of surface of external walls of buildings from a cadastral footprint shapefile

I need to calculate the surface (m2) of external walls of all the buildings in a town. By external walls I mean all the walls of a building or parts of a wall which are not in contact with another ...
user avatar
  • 61
0 votes
1 answer
344 views

Database of U.S. Buildings

Does anybody know where I can find a database containing all (or a large percentage of) building addresses in the U.S.? I'm particularly interested in commercial properties. Perhaps there's a google ...
user avatar
2 votes
1 answer
1k views

Multipatch footprint of Sun Shadow Volume in ArcScene (removal of below ground shadows)

I am new to using ArcScene and encountered a problem in my analysis. I want to calculate shadows in the city center of Utrecht on different times and days. Subsequently I want to transform these ...
user avatar
  • 43
0 votes
1 answer
264 views

Building footprints of Atlantic city, NJ

does anyone know where to get information of building footprints information on Atlantic city?
user avatar
  • 11
3 votes
0 answers
1k views

Formula for maximum coverage of a geostationary satellite based on earth station elevation

I am trying to create a JavaScript function to represent the maximum coverage of a geo satellite for different antenna elevations (0 degrees, 5 and 10 degrees) with 3 leaflet polylines. The result is ...
user avatar
  • 183
2 votes
0 answers
516 views

Neighborhood boundaries and building footprints for Johannesburg?

Are there any sources for free (or commercial) and distributable neighborhood and building footprint datasets for Johannesburg out there? I've already looked on: Google OpenStreetMap joburg.org.za ...
user avatar
  • 129
0 votes
2 answers
165 views

Where can I find Tampa Bay building footprint GIS data?

I have looked on the city and county website and can't seem to find it.
user avatar
  • 11
2 votes
1 answer
2k 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 ...
user avatar
  • 283
2 votes
0 answers
308 views

Displaying mosaic dataset footprints with ArcGIS Image Service [closed]

Is there a way to display the footprints created through a mosaic dataset with an Image Service? I have a mosaic dataset that created footprints with associated data that can be viewed in ArcCatalog. ...
user avatar
  • 823
0 votes
3 answers
186 views

Comparing polygon attributes that share the same parcel?

I'm new to ArcGIS, or at least anything beyond the basics, especially ArcToolBox. so the answer might be extremely simple. Basically I have one layer of building footprints, and another layer of ...
user avatar
  • 772
11 votes
5 answers
7k views

Calculating Image boundary / footprint of satellite images using open source tools?

I need to create the polygon outlines of several single layer raster images, not the extent/bounding box, but the area without the nodata values, as shown here: Creating shapefile showing footprints ...
user avatar
  • 423
1 vote
1 answer
739 views

How to create generic building footprints based on attribute information?

I'm trying to create a tool that generically creates building footprints on a given parcel according to certain attribute information of the parcel like building density, max. height, utilisation, etc....
user avatar
2 votes
3 answers
592 views

Where/how can I find/buy/make building footprints for Kent County, MI (Grand Rapids, Wisconsin, etc)?

We need building footprints for Kent County, MI along with their associated street addresses. Primarily we're looking for Grand Rapids and some of Wisconsin, MI, but if someone had access to this ...
user avatar
3 votes
2 answers
1k views

How to create an outline polygon (footprint) from raster data with PostGIS

How can I create a polygon, containing the actual outlines (aka footprint) of a raster file with PostGIS? I just need the outlines of the data containing parts of the raster. ST_PixelAsPolygon creates ...
user avatar
  • 727
4 votes
1 answer
1k views

Looking for GIS data for Curitiba, Brazil?

I am wondering if anyone knows where to find building footprints, road network, transit, or environment feature data for Curitiba, Brazil.
user avatar
5 votes
4 answers
7k views

Looking for an efficient way of digitizing building footprints using orthophotos and ArcGIS 10

In the past I've used PCI Geomatica to do something similar using the softwares classification functionality. Are there some tools/tricks in ArcGIS that will partially automate the process. I remember ...
user avatar
  • 974
5 votes
1 answer
2k views

Vector Building Footprint Resources - Tokyo

I typically know where to look for this data in the United States, but I'm at a loss when looking for building footprint shapefiles abroad. I thought I could find what I was looking for with Open ...
user avatar
4 votes
2 answers
2k views

Purpose of building footprints

What are the uses (public and private industry) of building footprints? I'm trying to figure out how polygon building footprints can be used. i.e. are they used for determining tax liabilities, etc....
user avatar
  • 925
6 votes
2 answers
2k views

How/Where can I find vector data for building footprints in Texas?

I've done a lot of research on this topic over the past 8 or 9 months, but I'm a GIS newb, so I may have overlooked some possibilities for finding/extracting this data. A short list of resources I ...
user avatar
  • 163
1 vote
2 answers
228 views

Searching for Building Footprints or Building Inventory Data for the Balkans

I am searching for free building data and foorprints, preferably GIS shapefiles but data tables are also welcomed, for Albania, Bosnia, and Macedonia. I am working on estimating people per building in ...
user avatar
3 votes
2 answers
1k views

LIDAR data for Chicago

Is there any public or private sources of LIDAR data for the city of Chicago? Searching online has not lead me to any sources, and I am unsure how the commercial world of LIDAR works. The LIDAR point ...
user avatar
  • 15.9k
1 vote
0 answers
247 views

Recomputing footprints on old satellite imagery [duplicate]

I am trying to create an image service out of some 1976 satellite imagery. But first I need to get all of the no data cells out of my mosaic dataset. I have tried to recompute the footprints on my ...
user avatar