Aligning geographic data to a known coordinate system so it can be viewed, queried, and analyzed with other geographic data.

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2
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1answer
59 views

How to display this map in QGIS

I downloaded a map with a .tif, .tfw, and .xml file. I can't get it to display in QGIS. I used geotifcp -e to create a GeoTIFF. I tried Lambert Conformal Conic since it was mentioned in the .xml. Hard ...
1
vote
1answer
111 views

Shifting LiDAR point clouds that have been incorrectly georeferenced

I am new to LiDAR and have never been a part of the LiDAR data pre-processing stage and hence, this question. I have two LiDAR point clouds (.las files) of a densely forested area that were captured ...
2
votes
2answers
54 views

Georeferenced image not displaying

I used Georeferencer to georeference a jpg map and saved as tif. I used Thin Plate Spline, Cubic Spline, and LZW as settings. The tif shows fine in OSX Preview. gdalinfo reports Driver: GTiff/GeoTIFF ...
1
vote
1answer
47 views

CRS confusion or georeferenced

I have georeferenced an old jpg map against Bing Road maps (OpenLayers plugin) and Raster>Georeferencer. I'm trying to use EPSG:4326 because my PostGIS database uses that. My PostGIS info shows ...
0
votes
0answers
53 views

Problem georeferencing PNG of floor plan

I am a student of GIS. I am working on PNG files of campus buildings' floor plans which we are georeferencing to satellite images of campus and then mapping safety equipment on each floor. After some ...
2
votes
1answer
34 views

Cropping Geo-referenced scanned maps

So I geo-referenced a few scanned maps successfully, however when it orients the scanned map correctly, a black rectangle background appears behind the map. This doesnt allow for me to "puzzle" ...
2
votes
0answers
27 views

failed gdal script from QGIS Georeferencer using Thin Plate Spline (TPS)

I'm trying to georeference a photo using QGIS Georeferencer plugin (this is an oblique photograph. I know I should be using a proper georectification routine, but my current work now is just to simply ...
1
vote
0answers
59 views

Georeference dwg file in arcmap

I have a dwg file and I want to georeference it with ArcMap. I have 4 coordinates given (in Degrees and Lambert), so I should be able to reference it. I used the georeferencing tool in ArcMap, but I ...
2
votes
0answers
46 views

My georeferencer plugin window doesn't open

Ever since I downloaded QGIS 2.2 I can't get the georeferencer plugin to open. I've removed all older versions of QGIS & reinstalled & have just installed 2.8.6 but am still having the same ...
4
votes
1answer
24 views

Using Gazetteers to mine locations from text

I am starting to work with Gazetteers and trying to find something that will actually "mine" geospatial locations from sets of text. Academically, this is a difficult task as texts are based on ...
1
vote
0answers
14 views

Orthorectify large set aerial images [duplicate]

I have a large set of images that I want to stitch the together and orthorectify. They have been taken from a small aircraft. The camera of the aircraft is tilted, thereby, although gps data is ...
3
votes
2answers
48 views

How to overlay Historic map onto Google Earth using QGIS?

I am very new to QGIS. I have a Plat Map of my home town from the early 1900's that I would like to overlay on Google Earth. The problem I'm having is the map will not line up. I can get roads to ...
1
vote
1answer
51 views

Converting Total RMS Error into meters

I'm wanting to georeference an old chart in the same manner described in a published article: "All charts were transformed to the British National Grid. The 1904 chart was georeferenced using nine ...
3
votes
1answer
115 views

Openlayers 3 - georeferenced ImageStatic

I am trying to display a georeferenced image (in 4326) over a Bing map in OL3. The ImageStatic is the following. var view = new ol.View({ center: [0, 0], zoom: 15, ...
0
votes
0answers
37 views

Assigning latitude and longitude to a particular pixel in satellite image

Pixel of a satellite images can be assigned latitude and longitude, but how this is done as each pixel represent certain area depending on the resolution of image that can be too high to assign ...
2
votes
0answers
63 views

Automating georeferencing of aerial photos? [closed]

I have tried using the "automatically place Passpoints" tool on the georeferencing toolbar in ArcGIS 10.3.1 but this only seems to work with Aerial photos which are near to identical. I have many ...
1
vote
0answers
33 views

Georeferencing an NDVI (JPEG) image in QGIS

I am struggling to georeference a NDVI image. The image is a JPEG, how would I go about this? I am using QGIS
0
votes
0answers
49 views

Tips on building GeoReferencing web app with MapBox?

So I want to build a web app using MapBox GL JS that allows users to Upload an image (preferably any kind) Position it on to a map The image is then uploaded to MapBox as a GeoTIFF and is added as a ...
0
votes
0answers
11 views

Mosaic georef is a few pixels off for half of my image, how to georeference?

I have two sat. images from the same platform on two different dates. The images overlap each other nicely, but I cant get them to accurately mosaic into one raster image. I merged the two photos ...
2
votes
1answer
44 views

How to georeference city data set with geoid and objectid as only location data

I am new to Cartodb and ran into my first hiccup. I was trying to import a data set of walkable food access in Philadelphia that is available from Open Data Philly. I can't figure out how to ...
0
votes
1answer
68 views

Why do collinear ground control points create larger residuals?

When georeferencing a raster image of a long corridor, why do collinear ground control points cause larger residuals? Say I am using the georeference function in ArcMap, and I have 6 ground control ...
2
votes
1answer
106 views

Can FME georeference dwg CAD files?

Due to problems with other software, I am trying to find altervative software in order to georeference DWG Images without a defined coordinate system attatched to them. They are digitized to scale 1:1 ...
2
votes
0answers
126 views

How to Georeference in QGIS 2.12.1 Lyon

I used to be able to Georeference in QGIS but now I can't. These are the steps I go through. At the end of it nothing happens. No layer is added to my Layers Panel and no document is created in the ...
0
votes
1answer
222 views

How to calculate a map scale with bounding box, width and height?

I have a map that will allow the user to select or slice images/pictures out of it. As example a map width is 1200px * 1200px and the user selects say 700px x 700px square (note: aspect ratio is ...
0
votes
1answer
26 views

Importing non-geocoded jpeg into active window of ArcMap Data frame?

Currently when we draw a new subdivision into our GIS, we snip a .jpeg of the platted subdivision and add it to ArcMap. The un-referenced jpeg is simply dropped out in the middle of nowhere and we ...
2
votes
0answers
47 views

QGIS tiff image loaded but not visible

In QGIS I used the Georeferencer on a jpg image I had prepared in Gimp. But when I load the resulting tiff image into my QGIS project it is invisible, even though an image viewing program can show it ...
3
votes
1answer
52 views

How to create new shapes based on partial existing shapes and georeferenced scan?

I am trying to generate a new shapefile in QGIS based on a georeferenced scanned map of colonial powers in Africa and the NaturalEarth country shapes. The overlay of the georeferenced TIFF looks quite ...
1
vote
1answer
36 views

QGis's Geoferencer plugin isn't able to paste text that has been added to clipboard via mac's “pbcopy” terminal command [closed]

I recently wrote a little script that used mac's pbcopy shell command to dump some text into my clipboard for use in the QGis program. For some reason I'm not able to paste stuff that has been pbcopy'...
-1
votes
1answer
36 views

How to georeference a .jpg image with only a scale bar and no basemap

I have a building blueprint image that I need to calculate the sq ft for. However I have no reference or basemap to manually georeference in ArcMap. There is a scale bar on the image. How can I use ...
3
votes
1answer
96 views

How to use a png image as a correctly georeferenced background in order to trace lines from it?

I have a png image which looks like this and has some lines which I need to trace (the green and red lines): The coordinate system of the map from which the image is taken is EPSG: 3034. How can I ...
4
votes
0answers
78 views

QGIS 2.10 Can't load georeference plugin?

Apparently my problem was already present in older versions of Qgis. I don't know how to fix it, knowing I have a Linux system (Fedora 23). Somethiing similar here : Where to download QGIS 2.10? So, ...
1
vote
1answer
181 views

Georeferencing vector dataset in QGIS?

This question may seem as it was asked before, but I think I just don't use the right terminology. Here's my problem. I'm an archaeology student trying to make an internal map of a prehistoric ...
4
votes
1answer
52 views

Is it possible to locate a specific marker point on a raster using python and use that location for georeferencing

I have several scans of the same map, which I would like to georeference. I can not use arcpy.WarpFromFile_management(...) as the rasters are slightly different due to scanning. Is there a ...
4
votes
0answers
45 views

QGIS Georeferencer is stretching image

I'm trying to Georeference an image. I've followed the guide from QGIS, but for some reason, it's stretching, and offsetting the image from the points. For example, my input of the southwest corner ...
1
vote
1answer
96 views

Georefencing angled geological cross-section maps in QGIS?

Is it possible to georeference this type of angled cross section, preferably in QGIS (Section-II in the image) ? I am very much new to this type of georeferencing. Googled & couldn't find a ...
3
votes
1answer
67 views

Geo-Referencing an image from google maps with gdal_translate

I am trying to geo-reference an image using gdal_translate in a command prompt. Currently I have the following gdal_translate.exe -of GTiff -a_nodata 0 --config GDAL_DATA "Config location" -a_ullr -...
7
votes
1answer
158 views

Georeference raster in non horizontal plane

We have raster data which is generated from (vertical) walls. We would like to keep this data in a postgis database and have the spatial reference encoded "the most accurate way". Currently, they are ...
0
votes
0answers
48 views

ArcGIS stops responding during Georeferencing Save?

Im using ArcGIS 10.2. I had an ealier problem that I think I found an answer to here while georeferencing an aerial photo. My current issue is that whenever I go to rectify the georeference points, ...
0
votes
0answers
62 views

Georeferencing image in ArcGIS for Desktop?

I had to make a custom base map of Manhattan, so using adobe illustrator I traced over a blank map and added the color/features I wanted. How do I go about Geo-coding Georeferencing it? I have ...
0
votes
1answer
104 views

script for auto registration

I have a large list of raster images (>600) I would like to automatically georeference to a source image. I can do this in ArcGIS 10.2 using the Auto Registration tool for each image but looking for ...
0
votes
1answer
64 views

Georeferencing PNG in ArcMap based off of data frame corners?

First, in Arcmap I set the data frame exactly equal to the page layout (2'hx3'w) and exported my hillshade, DEM, etc one after the other from layout view so that they were all the exact same size and ...
1
vote
2answers
82 views

Georeferencing Raster+Shape file using different Raster of same region?

In ArcGIS, I inherited a database of points in a raster image of Mars, each point indicates a crater occurrence. These are around 60,000 points, all of them in a shapefile. Both the raster and ...
1
vote
1answer
58 views

How to get parcel polygons to match up?

I have county-wide parcels that don't match up. They are in the same feature dataset, have same projection etc. Is there a tool to get the borders/parcels to match? One layer of parcels seems to be ...
1
vote
0answers
62 views

Problem in loading map to Georeferencer in QGIS

I'm trying to load a map to the Georeferencer in QGIS using the approach from http://www.qgistutorials.com/en/docs/georeferencing_basics.html. I try to get the locality coordinates(lat/lon) of the '...
2
votes
1answer
26 views

Importing raster data with known lat/lon to QGIS?

I have a number of raster files with known latitude/longitude of the picture edges. What is the appropriate way to import such pictures in QGIS with correct coordinates? All the options that I can ...
1
vote
0answers
72 views

QGIS as a pre and post processor for modflow

I want to find out how QGIS can be used as a pre-processor for modflow, i.e delineating the model boundary and boundary conditions etc. exporting to modflow for analysis, viewing and/or mapping the ...
6
votes
1answer
163 views

Using a geo-referenced image as an overlay to display markers on floorplan

I've created a tool based on the Google overlay tiler. This allows our users to upload a floor plan, adjust the position etc. using Google maps. Nothing fancy. We have a server-side job which creates ...
1
vote
0answers
28 views

Importing geophysical information to QGIS 2.10 Pisa [closed]

I am using QGIS 2.10 Pisa to georeference geophysical survey information. When I import data I have black pixels around meaningful part of the image which I remove by setting the transparency to ...
3
votes
2answers
219 views

Ukrainian topographic map: projection and coordinates?

I need some help. I managed to get Ukrainian topographic maps for my project. I'd like to do the georeferencing in QGIS. The problem is that I don't have a clue what projection was used and how to ...
1
vote
1answer
51 views

Georeferencing DWG files on imagery which is hard to see through (e.g. trees)?

Here I have a few campgrouds that I have for are in DWG files that I am going to georeference them. I have no problem with that however; some of these campgrounds I need to georeference on the imagery ...