-2
votes
1answer
50 views

Identifying projection for shapefile with unknown coordinate system, no z values and no measures? [duplicate]

I am attempting to create a GIS Project with multiple Brazilian cities. I have been collecting, and am interested in, shapefiles that delineate the neighborhood boundaries of said cities. One city's ...
1
vote
1answer
15 views

Tiled raster image to be placed in an OSM/ Leaflet.js map

I have a mapoverlay in a custom projection which I need to add as a layer to an Openstreet map within a website. Since I was not able to change the projection earlier, I decided to manipulate the ...
1
vote
0answers
42 views

My map is little bit off

I am pretty new in GIS things and i have been learning how to use QGIS. Most of the maps are fine, but yesterday I went to GIS center at my University and I got the maps of my country that I will be ...
1
vote
1answer
18 views

Performing transformation from GHANA GRID to WGS 84 using QGIS?

I have a shapefile which was referenced using Ghana's grid system. I imported it to QGIS and specified WGS 84 but the coordinate bar still displays the Ghana grid values in the coordinate bar. Is ...
1
vote
1answer
45 views

Shapefile not projecting correctly [duplicate]

I am still new to this, so I apologise if I don't make a lot of sense! I am using QGIS 2.4.0 Chugiak. I am working on a project set to the GDA94/MGA Zone 50 coordinate system with 'on the fly ...
1
vote
0answers
25 views

How to make crs transformation of a QgsVectorLayer?

I need to transform QgsVectorLayers in python from one crs into another crs. By googling I found the following solution ...
5
votes
2answers
118 views

CRS for submission to Minnesota DOT

Does anyone have experience using QGIS to submit shape files to the Minnesota DOT (MNDOT)? I am using EPSG:26915 but got rejected due to an error in the CRS. MNDOT Specs call for "UTM coordinates, ...
1
vote
1answer
28 views

ESRI : 54019 or World winkel II in QGIS

Currently I didn't find World winkel II or ESRI : 54019 coordinate system support in qgis. One of our client using this.. Can any one tell me a solution to load shape files,which are using his ...
1
vote
3answers
35 views

How to convert crs projection of Map in qgis

I am totally new to GIS. I have a qgis project. I am adding the screenshot. As you can see the map is sort of rectangle in projection. How can i project it like this (without the grids) Thanks ...
0
votes
2answers
45 views

How to calculate x/y in a different coordinate system in QGIS 2.4?

I'm trying to calculate Northing Easting in QGIS. I can get it to calculate my lat/long using $y and $x in the field calculator. I changed coordinate systems to what I want it displayed at, but it's ...
0
votes
1answer
51 views

Raster and vector layer in the same CRS don't match

While adding multiple raster and vector layers (and setting them all in CRS WGS84) in QGIS 2.2, they don't seem to overlap. Interestingly enough, only raster files overlap between each other, the same ...
0
votes
0answers
18 views

QGIS Google satellite layer moving each time it's turned on [duplicate]

I have imported location data in a text layer, CRS = WGS84 and have put in Google Satellite and Google Street (WGS84/pseudo mercator) in but each time I switch on a Google layer it moves relative to ...
0
votes
2answers
51 views

How to set a coordinate transformation GRID

Does anyone know how to set a coordinate transformation in qgis so I can measure the distances in meters or kilometers? If anyone has a clue, would be just great. Thanks!
1
vote
2answers
44 views

Coordinate Reference System issues between SHP and Raster file

I am having an issue with the CRS of a given Aster DEM. I have downloaded a Aster DEM from www.oziexplorer3.com which comes with the EPSG:4326 - WGS 84 as the CRS. This is a DEM from Gabon, and all ...
1
vote
3answers
92 views

How to measure areas using an official CRS which is not available in QGIS?

I am very new to QGIS and doing a project on Glacial Lake Outburst & Flooding (GLOF). I am trying to find the area of a lake using images from Google Earth 7.0.3.8542. I am using the WGS84 CRS ...
2
votes
2answers
90 views

How to get the Measure Line in Yards (not Feet)

I'm using Qgis Dufour 2.0.1 and the Openlayers Plugin for images. I'm working on a golf course project where everyone thinks in yards. I've tried different CRS (now working the State Plane Missouri ...
1
vote
2answers
60 views

Any difference between EPSG:3003 and EPSG:102091?

I am working on QGIS 2.2.0. The PRS I am working on is Monte Mario / Italy zone 1 (EPSG:3003), with the following parameters: PROJCS["Monte Mario / Italy zone 1", GEOGCS["Monte Mario", ...
1
vote
1answer
30 views

Project one layer in qgis using projection CRS of another layer

I am using QGIS 1.6 and have imported a set of latitude, longitude points from a csv file as a layer. I also have another layer from a shape file. When I go to layer->properties for the second layer I ...
1
vote
2answers
25 views

“CRS selector” dialog after running a script

I add an empty vector layer using the following script. layer = QgsVectorLayer('LineString', 'MyLayer' , 'memory') QgsMapLayerRegistry.instance().addMapLayers([layer]) After I run the script, ...
1
vote
1answer
23 views

QGIS Custom CRS has some glitches

I am georectifying scanned versions of Survey of India maps, which are in Everest spheroid and india_nepal datum. The exact parameters are: +proj=longlat +a=6377301.243 +b=6356100.2284 ...
0
votes
0answers
27 views

I am getting NULL values when I use “point sampling tool”?

I am trying to extract values from a raster using a point shapefile, but I am getting NULL values. I think that NULL values are obtained because the Coordinate Reference System (CRS) are not the same ...
1
vote
2answers
83 views

User defined Coordinate Reference System (CRS) in QGIS is not located where expected?

I have received a shapefile with a user defined projection (i.e., +proj=krovak +lat_0=-32.923433 +lon_0=116.47485 +alpha=111.423433 +k=1.00004 +x_0=44328.529781 +y_0=1345943.211845 +ellps=GRS80 ...
1
vote
1answer
78 views

Spatial Join in QGIS 2.2

I am trying to spatially join point layers of some 12,000 women interviewed in Egypt to Egypt's polygon layers (administrative districts boundaries) using QGIS 2.2 and need some advice. I am a QGIS ...
0
votes
1answer
44 views

QGIS Road graph setting not configure

I am using qgis valmiera on windows 7 pro 64 bit. I am unable to configure road graph setting. Layer feature Transport layer is not highlighted. Please tell me how to solve this problem. Please tell ...
1
vote
3answers
89 views

Create buffer in Metres

I want to create a buffer in meters around points in Europe. But I cannot find a proper CRS for Europe that is in meters instead of degrees?
1
vote
1answer
47 views

Calling QgsProjectionSelector from QGIS Python plugin?

I am trying to create a dialog that allows the user to select a coordinate system from either the recently used projections or a general list of all available projections. This would basically offer ...
1
vote
1answer
39 views

QGIS Digitizing in Cartesian

I have a client, that needs some geological maps digitized (polygons) in a Cartesian grid. It would be a basic, square grid with North up, and coordinates in x and y. Some of the maps will need to ...
1
vote
1answer
122 views

Help defining custom CRS in QGIS 2.2

I'm trying to use EPSG:4479 in QGIS. 1) If I search for EPSG:4479, it returns a "Imported from GDAL" EPSG:4479, but it does not work. At the console, the following message is displayed: ERROR 6: ...
0
votes
1answer
25 views

QGIS “transform error” after downloading from OpenStreetMap

Beginner's question. I am working on this tutorial: http://www.qgis.org/en/docs/training_manual/vector_analysis/basic_analysis.html After selecting WGS84 UTM zone 34S in Project Properties, I receive ...
1
vote
0answers
60 views

Creating custom CRS for India toposheets using QGIS?

Indian toposheets (pre-2000 series) of 1:50k scale are in Polyconic projection, with Everest 1956 spheroid and India-nepal datum. How do I create a custom CRS in QGIS to represent this, so that I can ...
1
vote
2answers
81 views

Georeferencing Vector Layer (shp) from Mollweide Projection to Custom CRS in QGis

the title might be a little complex. Its part of a massive project: I'm working on a fantasy world; a map, to be more specific. I basicly just started to paint a world map in Photoshop, but over time ...
2
votes
1answer
49 views

How to align an HDF layer

Forgive me, but I am completely new to GIS. I am using QGIS. I have a raster layer (HDF format) that does not align with other layers. All layers are projected WGS84 (EPSG:4326) and still the problem ...
1
vote
1answer
60 views

reproject vector layer with pyqgis with new CRS does not worl

In QGIS I am running a script in th python toolbar to export all visible vector layers to a GEOJSON with this snippet: canvas = qgis.utils.iface.mapCanvas() allLayers = canvas.layers() for i in ...
1
vote
0answers
36 views

How can I see the overlay of two features (point & polygon)?

I am trying to open two digitized layers, one containing points in a region and second which I have downloaded separately for the region as polygon layer. I would like to overlay two of these layers ...
0
votes
0answers
34 views

Error 14: Could not open CRS database

I am using Python Console and loading a Vector Layer using python commands. When the layer is added, QGIS first asks for the CRS to use, but I don't have all the CRS listed out to select the Reference ...
0
votes
0answers
38 views

Convert coordinates

I have some data that I need to convert to Lat-Lon in order to plot. It originally came from an Esri Shapefile which I managed to get it out of with QIS. The issue is that the coordinate reference ...
0
votes
2answers
215 views

How to I convert from decimal degrees to meters in Qgis?

I am trying to convert from decimal degrees to meters in QGIS. I have a shape file that is currently in WGS84/UTM zone 19S. I have tried the save as - browse - WGS84 EPSG:4326 but this appears: ...
0
votes
1answer
52 views

Planar CRS for raster and vector layers

I want to work with a planar coordinate system, and as far as I know QGIS automatically puts me in a cartesian plan if I don't set up a CRS (Coordinate Reference System) for my project. That is ...
2
votes
1answer
41 views

How do I make this into a working CRS in ArcGIS?

+proj=tmerc +lat_0=0 +lon_0=-114 +k=0.9999 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs I have this text string which I successfully used to project data in QGIS. How do I use ...
1
vote
1answer
70 views

Question about BNG coordinate systems

I'm historically a user of MapInfo Professional but have recently started using FME and have been talked into now testing out a copy of QGIS. The main problem I've come across is that the coordinate ...
3
votes
2answers
53 views

What is the closest CRS to “Meridiano de Greenwich”

I have a 1906 scanned map that I am trying to georeference in QGIS for Mac. The map has French and English lat-long, indicating them as either "Meridiano de Greenwich" or "Meridiano de Paris." I would ...
1
vote
1answer
51 views

Importing data into a project with a custom CRS incorrectly projected

I created a custom CRS for a project I am working on. I then started a new project, set to my custom CRS and turn on "on the fly" transformation. I import Rail data that I know is in my custom CRS, ...
2
votes
1answer
261 views

Wrong lon and lat

I am using QGIS 2.2.0! I have shape file with wrong coordinates, it's had replaced x coordinate with y coordinate. For example my point feature have coordinates: 4830698,7496859 and right coordinates ...
2
votes
1answer
64 views

Can you create a CRS of superseded NSW Datum

I want to use a superseded projection (NSW integrated survey datum - referred to as ISG) because my main client utilises it. The projection is based on AGD66. We regularly receive survey files in this ...
0
votes
0answers
34 views

How to specify WGS84 CRS when importing a Shapefile into Idrisi?

Could you help me, please, to open shapefile from QGIS to Idrisi. I'm having problem answering to the Reference system, the project is using WGS84 but that is not in the Pick list. Idrisi is asking ...
0
votes
1answer
86 views

Why is shapefile layer not visible on WMS layer in QGIS?

In my QGIS project I have added a WMS layer for which the CRS is WGS84 EPSG:4326. Now I want to show my shapefile layer which has the same CRS. QGIS shows the layer separately but does not show with ...
0
votes
0answers
50 views

I had an error in Gdalwarp and i don't know the reason

I was trying to warp a raster using a mask and shift it before clipping but when i exectute the command bellow in Qgis/PyQt using QProcess: gdalwarp -s_srs "+proj=merc +a=6378137 +b=6356752 ...
0
votes
1answer
66 views

Coordinate mix up

I am working on a basic map, pulling coordinates from google earth, converting them to decimal degrees in excel, and then importing them into qgis. I am using qgis 1.8. When converting from degrees, ...
0
votes
0answers
57 views

QGIS convert attribute table to point shape

I have imported an attribute (whith no spatial information) table from MySQL. Fortuantly it has two colums with Longtitude and latitude taken from google maps. Is it posible to use those values to ...
2
votes
0answers
27 views

changing central meridian in QGIS causes problems [duplicate]

I want to change the central meridian of my world map (WGS84) in QGIS from 0 to -80. The problem is that this distorts the map every time I try it. This is what I do: go to Settings/Custom CRS ...