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

learn more… | top users | synonyms (2)

0
votes
0answers
19 views

Georeferencing using corner coordinate

I have thousands of tiff files with meta file containing corner coordinates. All images coordinates are different as they represent different locations. How can I georeference all these files using ...
0
votes
0answers
5 views

Georeferencing using Liblas error

I am trying to write georeferencing information to a '.las' file using liblas and c++. Here is my code: ofstream ofs; ofs.open("test.las", ios::out | ios::binary); liblas::Header header; ...
0
votes
1answer
16 views

CartoDB only georeferences half of my table

I imported a CSV file into CartoDB, with over a million points, all with a clear (and correct) latitude and longitude. For many of the collected data points the georeference column says ‘null’, while ...
7
votes
1answer
37 views

How to georeference LAS files?

First of all, I am a newbie in GIS. I have a lidar point cloud with GPS and telemetry data associated. Then, I transform coordinates of every point to an ECEF coordinate system and finally I ...
2
votes
1answer
30 views

Overlaying two raster images with no spatial reference

I have two images (X-Ray and Neutron Tomography Scan) of a human bone fragment. I want to use ArcGIS 10.2 to accurately overlay (geo-reference) these two images which have no spatial coordinates. any ...
2
votes
2answers
34 views

Georeferencing a map image with no precise projection info

I am trying to georeference a map that has meridians and parallels etc. but no projected grid displayed. I can get the coordinates of the meridians/parallels fine, so georeferencing should not be an ...
1
vote
1answer
69 views

Different origin between GDAL/Python and ArcMap of a Modis image

I have a Modis image and i load this image in Python using gdal library from osgeo import gdal, ogr INPUT_raster_1 = "C:\\myimage_1km.tif" ds_1 = gdal.Open(INPUT_raster_1, gdal.GA_ReadOnly) ...
0
votes
0answers
25 views

aster georeference proplem

i have 2 dems raster layers and i want to georeferencer the first dem raster layer with the another(second) dem raster layer,because the first dem raster layer has wrong coordinates and the second dem ...
0
votes
0answers
9 views

QGis crash when open georeferencer generated image

I'm trying to georeference an image with the georeferencer, QGis creates the geotiff, I can open in other image viewers but when I try to open in QGis it crashes. A friend tested in arcgis and it ...
0
votes
0answers
29 views

Batch Georeferencing in arcGIS 10.1.2 [duplicate]

I work for a government utility company. Our maps are broken down into 500x500 square meter grids. We have scanned images (TIFF) of these maps that we need to overlay and digize. The maps and the ...
1
vote
0answers
25 views

Max length for WKT name

First of all, sorry if this is obvious or stupid questions. I am not very familiar with geographic information system. My question is, is there max length limitation on WKT name? see the bold text ...
1
vote
0answers
12 views

Geo referencing RADARSAT-1 image

I have lots of RADARSAT-1 file in GeoTiff format along with meta data where corner coordinates are available. Corner coordinates are for image portion(except the black portion). But, radar image has ...
0
votes
0answers
20 views

GOES 13 EAST How to Georeferencing

I have a many image for Georeferencing, Goes 13 EAST this is metadata: GOES 13 Imager frame 78 at UTC 14:45:22.485 day 009 of 2015 Vis pixels : 4009, 24840 lines : 2621, 13440 Vis Lon : ...
1
vote
1answer
40 views

georeferenced raster coordinates

In QGIS 1.8 I have two rasters derived from the same multi-band tif image (1) ndvi - each pixel contains NDVI values. Using /Plugin/Analysis Point Sampling tool a new vector layer is created and the ...
1
vote
1answer
88 views

How to display a .jpg file in ArcMap for georeferencing? [duplicate]

I'm struggling to georeference a .jpg map. When I load it in to ArcMap, I cannot see the picture at all, so I cannot georeference it. (I tried to zoom to the map layer but the map just does not ...
1
vote
0answers
28 views

Georeferencing multispectral data using ArcGIS Desktop?

I often have to georeference Landsat data image to map (often raw data without geometric corrections). The way I am doing this is to open up one channel and set my GCPs and save them into a txt file. ...
1
vote
0answers
63 views

How to create a floor plan KML file from a DXF in QGIS? [duplicate]

I import a building floor plan from DXF format to QGIS. When I export it to KML format and then import it in Google Earth, how can I put the floor plan to my desire building location? MY CRS is WSG84 ...
4
votes
0answers
43 views

How do I open MOD17A3 in ENVI such that it is properly georeferenced?

I am using ENVI 5.1 on Windows 8. I am trying to open a MOD17A3 (MODIS Net Primary Productivity standard product - L4) .hdf file which I downloaded from the USGS website. I am still a beginner at ...
1
vote
1answer
46 views

How to georeference 1990 U.S. county names / FIPS for CartoDB?

I have a data table with columns of county and state names as well as FIPS codes for 1990 U.S. counties. I cannot easily merge shape data into the data (e.g. the Census ones), but CartoDB does not ...
0
votes
1answer
51 views

Overlay single, non georeferenced image in Leaflet?

I'm wondering whether it would be possible to somehow overlay a 3rd party, changing non-georeferenced image such as: If the image was static, I'd use mapwarper.net. But it's not. So is there a way ...
3
votes
1answer
53 views

Unknown Spatial Reference after Georeferencing in ArcMap

I am trying to georeference an image base on another *.tif, after rectifying i still have my Image as unknown spatial reference. Does somebody know how I can fix it?
3
votes
0answers
53 views

Correct georeferenced LiDAR data

Often I obtain LIDAR data for concept studies and conventional survey (in dxf format) over a small portion of this. The LIDAR typically covers the broader area and is used for broader studies, ...
0
votes
1answer
30 views

How can we extract feature for automation method using ERDAS Imagine 2013 software?

I have Quickbird Satellite data, hence I want to extraction from Building foot prints using automation method. Could you give whether its possible or not? If possible how can we use ERDAS Imagine ...
0
votes
1answer
42 views

opening a georefrenced image in IDL in ENVI

I am working with idl in envi,I want to use ENVI_CONVERT_FILE_COORDINATES in case of finding pixel value of specified point,for this porpuse I have lat and long data of my point but I need to open ...
1
vote
1answer
60 views

Do rasters other than “north up” exist in the wild?

"North-up" (as I understand it) refers to raster images stored with the northerly direction at top, and each subsequent line of pixels is a bit farther southward. Rasters' georeferencing metadata ...
1
vote
0answers
33 views

How to convert street number, street and cross-street for georeferencing?

I am trying to use the nyc stop and frisk (data) from aclu in carto_db. I have columns for street number, name, cross-street and intersections, where not all are filled in (so no number for an ...
0
votes
1answer
40 views

Assign world file to many tiff obtained using a grid/reticulate [closed]

I've many .tiff exported on the base of a grid/reticulate, and now I need to make them georeferenced. There is an automatic method that allow this using the coordinates of the vertexes provided from ...
2
votes
1answer
80 views

How to keep georeferencing from ArcGIS when importing raster into QGIS?

I tried searching for the answer to this, but I didn't see anything, so here it goes: I have previously georeferenced some .png raster images in ArcGIS 10.2.2, and could like to import them into ...
1
vote
0answers
17 views

Georeference Plug-in not Opening in QGIS? [duplicate]

for some reason georeference plug in will not open. I click on it and nothing happens. I have never had any issues with it before. I have also just installed version 2.6.0 to see if that solves issue ...
3
votes
1answer
24 views

Control points display location changes with scale

I'm trying to georeference an image by choosing points from Map (imported from Google hybrid) however the resulting tif is in no way located similar to the points (in fact the control points don't ...
1
vote
1answer
51 views

What are Control Points and Monuments used for in GIS?

I've done some preliminary research, looking up definitions for these terms, but I would like an explanation of what the application of a Control Point or Monument is for the average GIS? I am still ...
2
votes
2answers
183 views

Georeferencing PDF maps for use in Avenza PDF maps

I have PDF maps like the one below (normally PDF, but JPEG for this) that I would like to be able to georeference to use with PDF maps. I don't have GIS training, but have access to Arcmap 10.1 and ...
4
votes
0answers
77 views

Building a Mosaic Dataset with rasters that are not georeferenced. Whats the workflow?

I have 68 aerial jpegs that I would like to use in a Mosaic Dataset. They have not been georeferenced. My question is in regards to whether I should georeference them and then rectify and save them in ...
2
votes
1answer
29 views

Georeferencing an image to a Progressive JPEG

I am using the Georeferencing tool in ArcGIS 10.2 to georeference a normal JPEG image. I want to produce a georeferenced Progressive JPEG image from that image, but there is no JPEG Progressive ...
0
votes
1answer
39 views

How to update raster metadata in postgis

How can I update the raster metadata in postgis? upperleftx | upperlefty | width | height | scalex | scaley | skewx | skewy | srid | numbands ...
0
votes
1answer
31 views

Georeferencing SpecTIR Free Data Sample from IGM and/or GLT files

I have recently downloaded some data from the official SpecTIR website for some personal research interests. The website says that the ZIP file contains information about how to geo-reference the ...
2
votes
1answer
39 views

Meaning of no polygon data available for your selection when using CartoDB to georeference spreadsheet?

I linked my cartodb map to a spreadsheet in Google Docs that has column headings of Name, City, State and Pledge. However, when I try to georeference the spreadsheet, for the cities, I get an error ...
3
votes
2answers
46 views

Generic Grid to Coordinate System

I have been given a large dataset of X,Y positions of animal movements in a generic grid system. It uses 0,0 as an origin and then position units are in feet from origin. I have the geo-referenced ...
2
votes
1answer
69 views

Opening GeoTIFF (georeferenced in ArcGIS for Desktop) in QGIS?

I tried to open a georeferenced geotiff created in ArcGIS for Desktop in QGIS. I could open them but they are not in the right spots. These raster datasets contains .aux .rrd .tfwx .tif.aux.xml ...
1
vote
1answer
74 views

Automatically georectify raw Landsat scenes

I am working with 20 raw Landsat images downloaded from GloVis, in WGS 84 (EPSG 32634) coordinate system. I need to geometrically correct them to S_JTSK (EPSG 5514). Usually, georectification is done ...
7
votes
2answers
199 views

Geo-referencing an old map

I'm trying to georeference this part of an old map of Indochina. . The full extent gives more information: . To do so, I used QGIS and tried to infere the datum, I tried "Unknown datum based on ...
3
votes
1answer
82 views

Generating a GDAL script through the QGIS Georeferencer

For several months, I have been georeferencing files manually using the Georeferencer plugin within QGIS. I am now attempting to automate this process using GDAL. The Georeferencer provides a ...
0
votes
1answer
33 views

CartoDB Two Separate Georeferenced Data Sets in on Table

I have two tables each georeferenced with the same timestamps, can I merge the two and keep the georeferenced data so I have two sets of points but in one table?
0
votes
0answers
34 views

Raster georeferrencing does not open in QGIS?

Windows 7 64 QGIS 2.4.0 I am new with QGIS (3 months). I can not open any more Raster georef I did reinstall QGIS without success with georef
2
votes
0answers
14 views

Georeference with csc file does not work

I'm trying to map data that I uploaded with an csv file. Originally this data set only included the counrty code, e.g. BD, for Bangladesh. I tried to georeference it by admin region and selected the ...
3
votes
1answer
103 views

Is there an image editor that can edit GeoTIFFs without affecting their embedded georeferencing?

I know there are a couple workarounds for this but I was hoping a direct solution exists. I am looking for an image editor (like Photoshop but hopefully free software) which can be used to edit ...
2
votes
1answer
133 views

geoserver world image publishing error (georeferenced by ArcMap)

I want to add store - WorldImage in geoserver 2.5, but I still get this error: "Could not list layers for this store, an error occurred retrieving them: Failed to create reader from ...
0
votes
0answers
36 views

georeference a grid by using a script

I've got an image and a set of coordinates, which represent a grid, that looks similar to this: What I'm looking for is a script, that would transform my image, by using such a grid. Edit: My ...
2
votes
0answers
176 views

How can I get my georeferenced TIF file to rectify?

I have added a TIF file (size 1,433 KB) in ArcGIS 10.2.2 and defined numerous georeferencing points, with the aim of creating a raster file for conversion to polygons. However, on clicking the ...
0
votes
1answer
31 views

Georeference images together

I have taken a number of images from a very large rock overhang that contains ancient paintings. I want to piece the images together to create a single image of the entire rockshelter. Through ARCGIS ...