I have a DXF (layout) which is to be spatially adjusted to a point shapefile that has correct X Y cords.   When I add both as vector layers to Qgis, point shapefile is right on place but dxf shows a single line. I assume it needs rotation.  Vector bender, Vector transformation, Affine Transformation, DXFtoshapeconverter, I tried it all but nothing works.   I need help in understanding the process in such cases, where first I need to rotate the layer to match XY plane of the target layer and then georeference.
123900
I have got myself a dxf which is built with units in the wrong scale. How do I upscale that in QGIS?   Note it does open in QGIS, just in the wrong map units and location.
45880
I want to automatically split all lines in a QGIS layer at their vertices (). I've done a Google search and found , which is quite close but the workflow is complicated. Because I'll have to train my co-workers (who are unfamiliar with GIS) to use this tool, I want something as simple as a plugin or something that doesn't require GRASS. Since it's been a long time from 2010 - the time of , I wonder if there is any better way to achieve the same result?
39146
I learned on ArcGIS, and I'm familiarizing myself with the use of QGIS.  So far I love it, but the process of re-projecting and transforming datums seems less intuitive than in Arc.    I recently geocoded 63 locations, pulled in the csv and transformed into a points shapefile. I then set the projection for that points layer as the same for my block groups multi-polygon (EPSG 102121- NAD_1983_Michigan_GeoRef_Feet_US).    The 2 layers are still misaligned, even if I save each layer with the specified projection and try to reopen in a blank project.  Can anyone help?
103421
I am working with the new Processing Framework in QGIS 2.0.1. I really like the graphical modeler, because it allows my to make my own tools without having to be able to write pyhton or any other programming language. But it seems like some of the fTools (the Vector-Tools in QGIS) are missing? For example "Join Attributes by Location".  Is this an error, or is there a reason for that tool being missing in SEXTANTE? To make things a bit more clear, I attached 2 Screenshots to show which tool I mean. Here you see all the tools avaliable in the Processing Framework   Here you see the tool I am looking for..   So is there any way to get the Tool in the Framework? If not, has anyone an idea how to get a similar result with another tool?  (Futher information on the task i want to accomplish: I've got a .shp with landlot, and a .shp with 3 polygons, and I want to have a field in the attribute table of the landlots which shows which of the polygons is covering which landlot.)  Thanks in adavance!  Gunnar
10453
I am using QGIS 1.7.4-Wroclaw and working with an SHP layer in WGS84. I want to buffer out to a certain number of kilometers from this layer using the ftools buffer tool.  I understand that the buffer tool always uses the layer units, which for WGS84 are decimal degrees. We all know that degrees don't convert consistently to meters, so how should I go about making my buffers?   Is it necessary for me to convert the shapefiles to a different CRS that natively uses meters?   If so, how do I choose one?
80811
I want to convert a shapefile to a KML using QGIS. When I do it, the output I obtain is without attributes. And I want a similar product as it is provided by shape2kml of zonum solutions.
45983
Let's say I have a shape that I rotated at an awkward angle of let's say 34°. I close the document, return a few hours later, and want to straighten the it back to its original 90° or 0° angle. The problem is I don't remember the angle I originally rotated it at. Shift + Rotating nor resetting its bounding box does the trick. Any shortcuts/options I'm overlooking here? For example how would I rotate this quadrilateral so that it sits horizontally straight and looks like a box.
5930
I am using QGIS 2.6.1 and have worked in an Excel file database (which was actually converted from a Shapefile). I have managed to convert it as CSV file and load it into QGIS (displays data fine) but I have trouble to convert it to a shapefile.  I can view it but I can´t add or alter data in this file. I think I have to save it as a database.   Any clues how to convert the xlsl-data to a database and finally to a shapefile?
118235
I copied the example from geotools, which shows how to transform a shapefile into a different projection. () But when transforming from Gauss Krueger 4 into Pseudo Mercator (3857) the shapes are not at the correct position, they are displaced several meters.  What can I do to fix this?  The sample code contains :   CoordinateReferenceSystem dataCRS = schema.getCoordinateReferenceSystem();             CoordinateReferenceSystem worldCRS = map.getCoordinateReferenceSystem();             boolean lenient = true; // allow for some error due to different datums             MathTransform transform = CRS.findMathTransform(dataCRS, worldCRS, lenient);   ... and then ...  Geometry geometry2 = JTS.transform(geometry, transform);   additional information:  The sample data of the source as the following CRS  PROJCS["PD_83_3_degree_Gauss_Kruger_zone_4",    GEOGCS["GCS_PD/83",      DATUM["D_Potsdam_Datum_83",        SPHEROID["Bessel_1841", 6377397.155, 299.1528128]],      PRIMEM["Greenwich", 0.0],      UNIT["degree", 0.017453292519943295],      AXIS["Longitude", EAST],      AXIS["Latitude", NORTH]],    PROJECTION["Transverse_Mercator"],    PARAMETER["central_meridian", 12.0],    PARAMETER["latitude_of_origin", 0.0],    PARAMETER["scale_factor", 1.0],    PARAMETER["false_easting", 4500000.0],    PARAMETER["false_northing", 0.0],    UNIT["m", 1.0],    AXIS["x", EAST],    AXIS["y", NORTH]]   and the target has the following CRS:  PROJCS["WGS 84 / Pseudo-Mercator",    GEOGCS["WGS 84",      DATUM["World Geodetic System 1984",        SPHEROID["WGS 84", 6378137.0, 298.257223563, AUTHORITY["EPSG","7030"]],        AUTHORITY["EPSG","6326"]],      PRIMEM["Greenwich", 0.0, AUTHORITY["EPSG","8901"]],      UNIT["degree", 0.017453292519943295],      AXIS["Geodetic latitude", NORTH],      AXIS["Geodetic longitude", EAST],      AUTHORITY["EPSG","4326"]],    PROJECTION["Popular Visualisation Pseudo Mercator"],    PARAMETER["semi_minor", 6378137.0],    PARAMETER["latitude_of_origin", 0.0],    PARAMETER["central_meridian", 0.0],    PARAMETER["scale_factor", 1.0],    PARAMETER["false_easting", 0.0],    PARAMETER["false_northing", 0.0],    UNIT["m", 1.0],    AXIS["Easting", EAST],    AXIS["Northing", NORTH],    AUTHORITY["EPSG","3857"]]   Any idea? D3
111538
I have slight experience with ArcGIS, but am new to QGIS.  I'm trying to set the projection of my map, and I understand that this is done by altering the CRS (coordinate reference system) of each layer and/or the entire project.  When I right click a layer and select "Change Layer CRS", however, the visual representation of the map (the distortion) does not reflect the selected projection. My world map looks like it has a Robinson (or similar) projection, even if I select a Mercator CRS. The EPSG code in the lower right corner changes, as do the coordinates.    Setting the project CRS to the same projection does not help, nor does enabling on-the-fly projection.  My goal is to export the map to SVG, so the visual distortions are important.  Am I doing something wrong?
46179
I have a world map in correct Longitudes from -180° to 180°. Additionally, I have a shapefile of data from South America, which shows at 290° instead of -70°. How can I reproject it using QGIS?
118533
Joining shapefiles is a relatively straightforward proess in QGIS using 'add vector join' in the layer properties menu. I can add a csv file as a vector layer, as well as a shapefile, and join the two using a common field.   I would like to do a similar join using pyQGIS, however I can't seem to find any documentation on how to go about this. Is this possible to do programmatically using pyQGIS with 'add vector join' or the older 'Join by Attributes'? Or, alternately, might there be any other Python modules that might be able to merge a csv with a shapefile before loading as a map layer with pyQGIS?
117254
I've searched the manuals and plugins and done some tests..  Is it in any way possible to perform 3D drawing and editing of vector objects for 3D mapping e.g. in a 3D shapefile or PostGIS 3D table?
48262
The following is currently unsuccessful at fulfilling a table field join to a point shapefile in Qgis. All instances of the join object will print the proper values, and no error is flagged when processing - but the target layer does not exhibit any effect.  Something missing?      Heads = QgsVectorLayer(headCSV, 'Heads', 'ogr')     QgsMapLayerRegistry.instance().addMapLayer(Heads)     self.iface.legendInterface().setLayerVisible(Heads,False)     grid = ftools_utils.getMapLayerByName(unicode('Grid'))     joinObject = QgsVectorJoinInfo()     joinObject.targetFieldName = str('ID')     joinObject.joinLayerID = Heads.id()     joinObject.joinFieldName = str('cellID')     grid.addJoin(joinObject)     grid.reload()   UPDATE:  The following returns 'None'.  I expect this is actually supposed to return the field names to be joined?  (e.g. - a clue to the mistake)      print joinObject.joinFieldNamesSubset()   FURTHER UPDATE:  Added the following, and now the previous update command returns the accurate fields to be joined - yet the destination layer does not show 'joined' fields...      joinObject.setJoinFieldNamesSubset(['someFieldName'])
11874
I am a beginner using QGIS (1.8.0 Lisboa) on a Mac (OS X 10.6.8 Snow Leopard). I work on a file with two layers in the following sequence (top to bottom):    a vector polygon layer with a few outlines of various buildings in France and Italy (CRS: EPSG:4326 - WGS 84 - "on the fly" re projection is activated ) a Google satellite layer uploaded via open layer plugin.   Sometimes when changing the scale (scrolling in and out) the Google layer updates a little wrong in size or position compared to the polygon layer. But as soon as I "pan" the map everything reconstructs right. Now the problem I have concerns the print composer.  The result of any kind of export - pdf, or image or svg - of my map (vector layer + Google layer in the background) differs from what is shown in the preview of the print composer: the vector layer and the Google layer positions are mismatching and in a different scale. I can send some pictures showing screenshots of the print composer preview and the final results if required.  I tried almost everything:    new files with different CRS settings "cache" update preview "render" update preview different paper sizes,  different scales,   The problem appears only using an open layer map (Google, OpenStreetMap...). If I try the same using two vector layer (shapefile) - one with the buildings, another one with the city in background - everything works out great.  ...exasperating! Since it is a real important research project I would be very grateful for some help and tips.
106049
I'm trying to create an exporter for a format, which includes shape key support. This format requires both vertex coordinates and normals to be specified. This should be logical, because the vertex selected on the image below won't have the same normals:     Comparing it to this one:    But I actually haven't found any way to export shape key normals. Both Bmesh Vertex and ShapeKey Vertex only store the coordinates.  Is there any way to get them?
59505
For some reason the pivot point on my object has become rotated (other objects show normally oriented pivot points). I have to set the "transformation orientation" (see the bottom of my screenshot) to be able to see it though. Does anyone know how to change it back? That is, change it to be aligned with the "world orientation".