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

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25 views

Clipping raster Data: Converted from GeoPDF to .tff. to .lyr

Program: ArcGIS 10.3 Need: Trying to get a free basemap for georeferencing a historic map so that I can overlay it in my project area. Attempted to use ESRI's USGS National Basemap so that I could ...
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1answer
42 views

Unable to choose desired layer when georeferencing in ArcMap?

I am georeferencing some images in ArcMap 10.3.1. When I want to add the specific layer I'm going to georeference, I cannot choose this from the drop-down menu. Any ideas on how to solve this ...
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1answer
88 views

Spatial Adjustment or Georeferencing

I have a tiff map of a college campus and polylines of walkways. They are both in the same coordinate system but do not line up so I need to move one on top of the other. The textbook I am using says ...
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0answers
70 views

Aligning two raster layers in QGIS?

I am teaching myself GIS in baby steps, I recently acquired aerial imagery (employing RGB and NIR-GB sensors) using a small UAV with the intent of generating a map in a small plot of land. After ...
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0answers
34 views

Issue on project CRS loading a georeferenced image

I have a georeferenced image in EPSG 26714. When I load it in Qgis 2.14 the project CRS is set to 4326. I asked for the layer properties and the CRS registered is 26714. When I open the same file in ...
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1answer
18 views

Does anybody have a link to a video or tutorial on how to georeference an image file with a crossection in ArcScene?

I am looking to put together a 3D site conceptual model. I have subsurface data as well as surface data and would like to display it in ArcScene. How do I georeference a crossection so that it ...
3
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1answer
42 views

CRS and QGIS georeferencing for Cassini projection

I have scans of OS 6" series maps which I understand are Cassini projection. According to an article my Mugnier, Photographic & remote sensing, Oct 2003 they had the typical scale factor equal ...
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1answer
91 views

Georeferencing Raster automatically fails

While trying to auto register a raster image in georeferencing - using a wms raster layer as reference - I get the simple error message "Failed to auto register". Thereby the Link Table remains empty. ...
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1answer
41 views

Find coordinates of point on map

I have scanned map I know it scale and dpi. Is it possible if i know lon-lat cords of some point(X,Y) calculate lon-lat of another point (clicked) on this map? I have read some about georeferencing ...
2
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1answer
67 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 ...
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1answer
115 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 ...
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2answers
60 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 ...
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1answer
49 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 ...
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0answers
59 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
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1answer
35 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
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0answers
31 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 ...
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0answers
63 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
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0answers
54 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
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1answer
28 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 ...
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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
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2answers
67 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
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1answer
56 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
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1answer
138 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, ...
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42 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
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0answers
65 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 ...
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0answers
37 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
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0answers
55 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 ...
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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
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1answer
49 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
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1answer
73 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
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1answer
131 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
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0answers
137 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 ...
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1answer
252 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
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1answer
27 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
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0answers
62 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 ...
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1answer
37 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'...
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1answer
38 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
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1answer
100 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
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0answers
82 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
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1answer
248 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
59 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
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0answers
47 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
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1answer
105 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
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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
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1answer
161 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 ...
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0answers
57 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, ...
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0answers
63 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
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1answer
113 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
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1answer
67 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 ...