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

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1answer
532 views

Deleting control points in ArcGIS Georeferencing?

I'm trying to georeference a raster in ArcMap 10.2 using a rivers vector (polyline) feature class. I started by shifting and rotating the raster. However when deleting a control point to reduce my RMS,...
-3
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0answers
22 views

Choosing georeferencing software? [closed]

Can anyone tell me what is the best & suitable way to image rectification (geo-referencing)? like: google earth, bing etc etc
0
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0answers
16 views

Snap Ground Control Points (GCP) after georeferencing?

Does anybody know if it is possible to snap GCP:S after a georeferencing has been made? The coordinates are saved in a *.points file when using the georeferencer in QGIS and I am looking for a ...
-2
votes
1answer
32 views

How to georeference Satellite images in QGIS acquired from LANDSAT?

I'm trying to georeference and later obtain spectral bands of a given specified region but I can't find a way to georeference it because its difficult to find the control points in the images acquired ...
9
votes
1answer
18k views

Georeferencing shapefile using ArcGIS for Desktop?

I have a shapefile with some polygons that I would like to superimpose to a raster image, but unfortunately they don't match perfectly due to the reference system the shp has been created with. So, I ...
0
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0answers
20 views

How to georeference Satellite images (of an agricultural land) in QGIS acquired from LANDSAT? [duplicate]

I'm trying to georeference satellite images of an agricultural area but its getting very difficult to find the required control points to do so. Is there any way around it?
0
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0answers
28 views

How to save a georeferenced image in jpeg2000 in qgis?

I'm georeferencing an jpeg2000 image in qgis, but qgis is only capable to save it in geotif, but gdal would be able to save it in jpeg2000. How should i modify this script: "gdal_translate -of GTiff -...
13
votes
1answer
738 views

How to reverse-georeference with QGIS?

I have a map with a "strange" projection (it's basically hand-painted, not an exact one). I can easily georeference it in QGIS using the Georeferencer plugin and the Thin Plate Spline transformation ...
0
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2answers
19 views

how to project modis blue marble image?

I have combined MODIS blue marble images into a mosaic, a screen shot of the mosaic raster image with its source info opened in arcmap is attached. The file source shows that it has angular ...
0
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1answer
23 views

What are the corner coordinates of a global map in meters?

We all know that the corner coordinates of a global map in degrees are -180, 90; -180, -90; 180, 90; and 180, -90 (top left; bottom left; top right; bottom right). So what are the corresponding ...
0
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1answer
17 views

Adding Basemap to ArcScene?

I want to add a basemap under my 3D bar chart of density. I tried a lot by couldn't add the basemap in ArcScene. I want a map like the one below.
0
votes
1answer
253 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 ...
1
vote
1answer
89 views

Georeferencing a map without much info

I have part of a topographic map with contour lines and height points, but I don't have any further info about it. I know it must be in Balkan Zone 7 CRS and nothing more. How should I georeference ...
0
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0answers
9 views

Reprojecting Modis data using MCTK Aand MRT

I am trying to re-project MODIS product MOD15A2H Fpar product. I need my data to be georefrenced so That I can create ROIs and find pixel values. However, I am having trouble georeferencing the data ...
2
votes
1answer
50 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
212 views

Why won't my jpg/png fit to display for georeferencing?

I have a jpg of a scanned map. I can add it to arcmap, and view it fine until I try to assign spatial coordinates. When I use the georeferencing toolbar to "fit to display" to begin the process, the ...
5
votes
1answer
1k views

Calculating distance in WGS84 (MySQL and Geoserver)

Here is the environment in which I work: An application using geo-referenced data Database MySQL 5.5, storing georeferenced points A Geoserver server, connected to the MySQL database Here is the ...
1
vote
1answer
23 views

Change project CRS = discard GCPs?

[Using QGIS 2.12 Lyon on Mac with OS X 10.10.5] I am struggling to georeference some old hydrographic survey maps that are in the form of TIFF files (.tif). If I open the georeferencer tool and set ...
0
votes
1answer
198 views

Georeferencing in ArcGIS - Zero-Order (Shift)

Zero-Order (shift) transformation is meant for rasters that only require shift, which as i understand it means moving or translating the image. Two questions: Does it mean that two or more control ...
0
votes
1answer
184 views

How to use Orthoengine in PCI Geomatica to georeference Pleiades 1B TIFF to WGS 84

I am trying to use the orthoengine in PCI Geomatica 2015 to reference an image to WGS 84 (ESPG: 4326). Acquisition mode PX Spectral processing PA+XS (resolution is 70cm) I have the associated RPC ...
6
votes
3answers
312 views

Creating disease risk map in QGIS?

I would like to create a risk map using RFE Data and Tiffs but now I realised that I actually have no idea how. I have dowloaded .Tiff(Region), .hdr and .bil(Rainfall/RFE) files from the USGS page, ...
10
votes
1answer
5k views

Georeferencing using GDAL?

I have a .tiff image that I am trying to overlay in google earth. For that I require to georeference it first. The image projection is UTM with NAD83 as datum. I know the lat/long of the four corners ...
0
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2answers
4k views

Converting longitude and latitude coordinates to Indian Grid system?

How to convert lat/long coordinates to Indian Grid system? I've googled for a couple of days but didnt find the exact algorithm for this. and i got a link Indian Grid System. but i didnt get a ...
3
votes
0answers
415 views

QGIS : transformation types in geo-referencing

I am a beginner in geomatics. I am trying to georeference some images in QGIS. I would like to understand what is happening behind the different transformation types (linear, polynomial, Helmert...)....
1
vote
1answer
42 views

QGIS “Raster->Georeference” menu item not showing up

I am using QGIS 2.12.0 Lyon. I have installed a plug-in called "Georeferencer GDAL" and the version of that plug-in is 3.1.9 . [I am working on a Mac which is running OS X Yosemite 10.10.5.] I am ...
1
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1answer
37 views

Fixing python error in QGIS Freehand raster georeferencer plugin?

I am using QGIS 2.8.9 stable release in the 32bit form on a Windows 7 64 bit compatible PC. I want to use the Freehand raster georeferencer plugin. It installs without difficulty but when I try to ...
0
votes
1answer
31 views

Auto-Create polygons from Geo-referenced PDF

Is it possible to automatically create polygons/features from a georeferenced PDF? I'd like to geo-reference an expanded view of the below linked pdf, and then have each of the tracts created ...
1
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2answers
279 views

Help, I have 10,000+ .shp files covering 3 UTM zones with unknown projections

I was handed a ton of property files with no projections attached but was told they are all in UTM zone 21S. Well once I merged them all together and projected them I realized that the data covers 3 ...
2
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1answer
52 views

georeferencing swisstopo print

when i tried to georeference a printout from map.geo.admin.ch, either the result got turned some degrees, or the height got compressed or both. using the helmert transformation gave me the best ...
0
votes
0answers
136 views

Georeferencing google earth historical images

I have been trying to raster and georeferenced an historical set of images from Google Earth but I am experiencing issues after done the first one properly. I save 4 images from Google Earth of the ...
0
votes
1answer
81 views

Creating .geo extension in ArcGIS for Desktop?

I have to create a georeferenced image from ArcView/ArcMap in the .geo format. I can't find much on the web on this.
0
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1answer
39 views

changing projection hides raster

I have a map georeferenced in georeferecer plugin in QGIS. I have loaded it in qgis. It shows strangely (wrong aspect ratio than I expect). I am changing projection (bottom right "OTF" projection) ...
1
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0answers
37 views

QGIS: georeferencer, resolution-dependent behaviour, why resolution is negative

I am trying to georeference sovet military maps from maps.vlasenko.net. I have manage with one, but to my surprise I am failing badly with georeferencing a second file (M33-3 map). Let me go piece ...
1
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2answers
55 views

Speeding up (automating) QGIS georeferencing process?

I georeference a lot of maps with QGis using a combination of visible street intersections on paper maps and right clicking on those intersections inside of maps.google.com and clicking "what's here?",...
2
votes
3answers
8k views

How to add georeferenced TIFF to AutoCAD 2010

I have a ~6GB georeferenced (from ArcGIS) .TIFF satellite image that a colleague wishes to add to AutoCAD 2010. He wants it as a base layer for digitising features from. I have searched forums but ...
2
votes
0answers
29 views

Automated georeferencing based on topological point pattern matching in ArcGIS

I have a lot of building plans (PDF/PNG format) which I would like to automatically georeference. I have the base map "OS Mastermap Mono", which is use for a lot of the building plans. If I use ...
2
votes
1answer
193 views

problem georeferencing a TIFF QGIS

I'm trying to georeference a TIFF in QGIS2.0, 32Bit. The problem appears when QGis adds the map in my project, the map transforms into a black square and it goes to the wrong place. In the next image ...
0
votes
1answer
38 views

Determining coordinates for CAD file using ArcGIS for Desktop?

I have a CAD file of a building and I want it to be replaced on Google Maps with coordinates. The DXF-file is on a local coordinate system (undefined). I convert this file to SHP-file for editing. I ...
1
vote
1answer
61 views

Raster to vector data generation problem

I am trying to generate lee multiplier zone (see map please) from raster data using georeferencing and digitization. See this map only contains THREE layers! Lee Multiplier Coastal boundary Cities ...
9
votes
1answer
720 views

Georeferencing LAS files in geographic coordinates (lat/lon) or in cartesian (projected) ones?

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
52 views

Digitizing jpeg image or georeferencing it first?

I'm a new learner when it comes to QGIS. I have a jpeg image and I want to convert it into a shapefile. The problem is when I polygnized it, the resulting image is inverted. So i decided to just ...
1
vote
1answer
116 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 ...
1
vote
0answers
65 views

Problem aligning historic map of Poland [closed]

I have downloaded a historic map of Poland. I am having a problem aligning it to a modern map. I have tried various methods and coordinate system using over 50 points, but nothing works. It gets close,...
1
vote
1answer
77 views

How do I get dwg file in Autocad Civil 3D to align with a georeferenced shapefile and attach coordinate system?

I am working on a project mapping Rockingham castle for a event help there in August and am mapping the layout and camping area. I'm looking at taking over from the person previously performing this ...
0
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0answers
14 views

Cropping out overlapping raster areas from old maps?

I am trying to take out the white bordered areas from my crop lines from multiple PDF maps I georeferenced and now exist as rasters. My goal is to mosaic or merge them all together to have a seamless ...
3
votes
1answer
53 views

Which CRS would be the most appropriate to georeference a map of Egypt?

I'm trying to georeference a geological map of Egypt from 1981, but I don't know which CRS to chose, either the transformation type nor the resampling method... And once the georeferencing of the map ...
4
votes
1answer
107 views

Georeferencing Himawari-8 in GDAL (or other)

Does anyone know the appropriate project information to georeference (and hence reproject) Himawari-8 AHI data in the IR? The images are 5500x5500 pixels. Currently I try these: ulx=-5570248.832537 ...
0
votes
1answer
39 views

How to load and reference historic mapping

I have recently started working with QGIS having used ArcView for several years. I am unsure of how to go about inserting historical maps which have no referencing data. I think it might be ...
1
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0answers
49 views

QGIS georeferenced image does not apear in the map area

I'm having issues with some georeferenced images in QGIS 2.10.1-Pisa. I generally georeference PDF's of new land subdivisions over aerial photos to get the layout of the new subdivision, generally ...
3
votes
1answer
21 views

georeferencing raster data with unknown CRS

I’m new to QGIS and georeferencing raster data. I have a raster dataset with unknown CRS. The coordinates for goerefencing the raster data with reference points (x = 589 Y = 1483 / x = 500 Y = 1500) ...