I am attempting to create a 24x36 map of New York City, and overlay it with a shapefile from City Planning. I'm using the Openlayers plugin, and I've tried all of the different types of base street map layers. I have been able to successfully convert the shapefile from a NAD 83 projection (EPSG 2263) to a WGS 84 projection (EPSG 3857), but I'm still suffering from some type of shift whenever I draw the map out on the print composer on a large scale piece of paper. The larger I try to print, the more dramatic the shift the misalignment.
4335
I'm having trouble with the OpenLayers Plugin of Qgis and the map composer:  If I create an OSM-background layer and if I want to export this, the OSM-Layer looks perfectly all right in the normal qgis program window. But in the map composer and after export the layer has shifted relatively to my other shape layers (EPSG:32633 - WGS 84 / UTM zone 33N).  The second thing is that the output resolution of the exported osm-layer is very, very poor.   A really bad way of getting around this whole trouble would be to increase the screen resolution and make a screenshot of the map composition window of qgis. But I don't think this would be very professional. It also would cause a lot of pain :)   I'm using Qgis 1.8.0-Lisboa under Linux. The openlayers plugin is version 0.92.
94145
I am a history teacher and I like to make my own maps (I can never find exactly what I want).  I am using QGIS 1.8 and .  I want to reproject their cross-blended hypso rasters into projections that are more familiar looking to my students, like Lambert Conic Conformal.  I have tried changing the crs for the whole project, and the warp and assign functions from the raster menu, and changing the crs for the raster layer itself.  None of these seem to work properly - the resulting maps are unrecognizable and extremely large (file size).  I feel like I am making some kind of basic mistake but I don't know where to begin with this.  Any help would be appreciated.
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?
38382
I've been trying to export a few map layers using QGIS print composer. First, I loaded the layers and opened the composer using Project -&gt; New Print Composer:    Gave it a proper name:   Added a new map:   Exported as image:   However, the outcome is shifted a few dozens of kilometers westwards:   This specific west shift is inconsistent; sometimes I experience a smaller shift or a shift in another direction. Moreover, the scale often changes too - which makes map exporting impossble.  I'm using the newest QGIS version:   Any idea how to export the image properly? I'm currently using screenshots, which are a poor solution.
31731
I have a project and a topomap in WGS84 (EPSG4326). On the fly CRS transformation is activated. I open Google satellite layer from the OpenLayers plugin. The Google layer is WGS84 / Pseudo Mercator (EPSG3857). But then the whole project has also become WGS84 / Pseudo Mercator (EPSG3857).  I thought on the fly transformation would reproject to EPSG4326. Why is that? Is it better to work directly in WGS84 / Pseudo Mercator (EPSG3857) systematically when we use Google Earth?
81941
The following has worked for me for quite some time.  \documentclass[11pt]{book} \usepackage[margin=1in]{geometry}             \geometry{letterpaper}                  \usepackage[parfill]{parskip}     \usepackage{tikz, pgf, calc} \usetikzlibrary{matrix, shapes, positioning, calc, decorations.pathreplacing, shapes.geometric, arrows}  \newcounter{Day}  \newcounter{pt}[Day]    % CORRECTNESS POINTS FOR HW RUBRICS \newcommand{\pt}[2]     % NUMBER OF POINTS, ITEM IN STARBURST     {#2\begin{tikzpicture}[remember picture, overlay]         \node (A) [starburst,              draw = red, opacity = .8,              fill = red!20, fill opacity = .2,              xshift = -.5*\widthof{#2},             yshift = .5*\heightof{#2}             ]             {\phantom{#2}};         \node (B) at (current page.west) {};         \path let \p1 = (A), \p2 = (B) in node [draw = red,              color = red] at (\x2+.625in,\y1) {#1 pt(s)};     \end{tikzpicture}     \addtocounter{pt}{#1}     }  \begin{document}  \pt{1}{lorem}  \end{document}   Recently, I updated several packages with MikTeX 2.9.  Below is a screenshot of the packages that were updated.    Since the updates, the \widthof and \heightof commands are causing errors.  If I change the xshift and yshift to something else, everything compiles just fine (but isn't the way I want my command to work).  I have two questions:   Why did this work before and not now? How can I change my code to make it work correctly again?   Thanks in advance for any help!
117150
I have a maps where i want to show 6 different sites around europe. Instead of creating 6 different maps, i want to use the atlas generator.  I'm using QGIS 2.18.3 (Las Palmas).  I have made a coverage.shp including 6 polygons to show the extent of my different maps. Also, i set visibility presets (always showing 2 Layers: one is my backround google satellite image and one is always my vector shape). I have consulted a previous question:  ().  The Problem I have is that i want each map to have a different scale. I added an attribute to my coverage layer with the scale of my choice (eg. 30000, 16000...etc.). In the Print composer I went to the scale of the Map, data defined override > Edit, and set the scale of my attribute table. This is however not working.  where am I going wrong?
44909
I have a roads shapefile layer in ArcMap and I want to be able to view it on my Garmin64st. Ideally, it would be overlaid on a basemap so I would always be able to see it. It seems like that means I need to convert my .shp file to .img.   I'm finding various programs that claim to help with some step of this, but some of them are really expensive, and none of the free ones I've tried have gotten me to .img so far. I did download an ArcGIS Toolbox which converts .shp to .gpx, but I haven't been able to find a way to convert that to .img for free yet.   Am I missing something?   Does anyone know a simple and free way to convert a .shp to be viewed in a Garmin GPS like I've described?   If I absolutely must purchase a program, do you know of one that works?
29700
I'm looking for a shapefile containing an 1000m or 2000m UTM grid ("graticule"). All I was about to find on the web is a 10000m UTM grid (here: ) and I am aware that a 1000m UTM grid for the whole world might be quite big.  That's why I'm now wondering if and how it would be possible to generate such a shapefile for a part of the world. I would prefer to use open source tools like gdal. Others output formats than a shapefile might be ok too.   Has anyone an idea?
94104
We're running MapServer with a map that has just one layer, political boundaries from a SHP file.  This layer is using a basic EPSG:4326 projection, and the map itself is using EPSG:3857.  The resulting images generated by MapServer CGI queries have horizontal lines at certain latitudes:    Beyond this problem, the map is okay and lines up perfectly with the Open Street Map in OpenLayers.  The MAPFILE we're using:   MAP   WEB           METADATA         "wms_title" "Map Server"         "wms_enable_request"  "*"         "wms_srs"             "EPSG:3857"            END   END    PROJECTION     "init=epsg:3857"   END    IMAGETYPE      PNG   EXTENT -20037508.34 -20037508.34 20037508.34 20037508.34   SIZE           400 300   SHAPEPATH      "../data"   IMAGECOLOR     71 245 242    LAYER # States polygon layer begins here     NAME         Borders     DATA         ne_10m_admin_1_states_provinces_shp     STATUS       OFF     TYPE         POLYGON    PROJECTION     "init=epsg:4326"    END      CLASS       NAME       "Borders"        STYLE         COLOR        43 156 51         OUTLINECOLOR 32 32 32       END     END   END # States polygon layer ends here  END    I've verified that the proj.4 EPSG file has the proper definition of EPSG:3857, and don't understand what's happening.  Any insight would be greatly appreciated.
55928
I have problem with CRS Bosnia and Herzegovina?  MGI 1901 / Balkans zone 6  EPSG:3908 MGI 31276 / Balkans zone 6  EPSG:31276  Which of these two is OK? When I open google sattelite image with openlayers plugin, MGI 1901 match an image, when I change to MGI 31276 vector layer mismatch about 300m. When I import my layers to Global Mapper, datum of vector is "MGI Austria"   I need this projection:
16004
Probably a very basic question here, I want to change the draw order of a shapefile in QGIS, how can this be done?  As you can see in the picture below, only the "10" layer is shown, the others are below it... However, since this is a depth map of Skagerrak, I would like the other layers to show up on top of it.
100091
I've created a strip map for a linear feature and have it loaded as a data driven page.  I want to show stationing for the line.  The stationing displays properly on the first data driven page but on each subsequent page the stationing labels get messed up as the map orientation changes. I want the stationing labels perpendicular to the linear feature as shown in the first image.  The tick marks seem to rotate and stay perpendicular to the line but the labels won't.  How can I fix this?
96879
How do I change the coordinate value of a vector layer (13293061,-572595) to 119.413,-5.13677 (vector data &amp; Google Earth do not match)?   If I output my data using Google Earth as background, the vector data does not match with the underlying google layer.   Printing the result to PDF also has this same problem.
71462
In one project, I am trying to adopt marvellous styles for flow maps created by @underdark. At this moment I have the following output  Shapefile was created with the usage of  Plugin. Lines have different directions, i.e. the starting point of first is the ending point of the second and vice versa. So basically the table includes lines with both directions but without any description of those directions.   However, I faced several issues 1. Varying buffers' sizes Buffers around points shall inherit parameters from a different layer, i.e. they are not the same size. How to make them respond to the size of the circles' radiuses? Is there any kind of scaling factor, so to make my buffers &quot;dynamic&quot;? difference(   difference(     $geometry,     buffer(start_point($geometry), 500)   ),   buffer(end_point($geometry), 500) )  Maybe I to apply layer_property() or dbvaluebyid() or represent_value() if I want to extract the dynamic value from a different layer? I know that the buffer values in the expression above only produce appropriate results for line datasets which use a CRS in meters and will have to be adjusted for other units. 2. Proper allocation of arrows I am using an expression for Arrow type &gt; Plain CASE     WHEN x(start_point($geometry)) - x(end_point($geometry)) &lt; 0 THEN 1     ELSE 2 END  but still, I can not properly allocate orange halves of Arrows on the opposite side of blues. 3. The width of the arrows I want to adjust the line width accordingly to the values of a field &quot;FLUX&quot;. For that reason, I am using an expression for Arrow width. scale_linear(&quot;FLUX&quot;,0,10,0.1,3) * CASE WHEN  &quot;FLUX&quot; &gt; 1000 THEN 1 ELSE 0 END  How shall I handle those issues?  My desired output should look like this, curved lines can be ignored.   References:
67497
I have a vector floorplan (DXF) that I've added to a blank project in  using the Dxf2Shp plugin.   I've been reading tutorials and StackExchange threads, but I can't seem to find out how to "georeference" my layer?  I'm assuming I can somehow select the corners of the building and set the lat/long.  My goal is to export a shapefile that I can use with  and .  I realized that the project coordinates were actually lat/long coordinates:    and I need to use the "Affine (Rotation, Translation, Scale)" plugin to "place" my CAD drawing.
108792
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 and then click on Add new CRS copy existing CRS (choosing WGS84 / World Mercator) Edit its parameters (changing only the central meridian) to: +proj=merc +lon_0=-80 +k=1 +x_0=0 +y_0=0 +datum=WGS84   +units=m +no_defs go to Project Properties/CRS and choose my custom CRS   And then the whole map is distorted. It works fine when I do it in ArcGIS.