The process of generating an image from a model.

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7
votes
2answers
648 views

How Can I Make QGIS Stop Blinking Every Time I Pan?

The way QGIS draws the canvas when panning is quite annoying. If I pan the map even a little bit everything goes blank for a second or two before the layers are drawn. It looks like this happens only ...
1
vote
0answers
28 views

Features in .shp can't be identified & won't render

Using QGIS 2.4.0 on Windows 7 Service pack 1. I have several .shp's, all polygons, that give me the following problem: 293 features are listed in the metadata and shown in the attribute table but the ...
0
votes
1answer
105 views

Geodjango render_to_kml Multipolygons - Can be fast or faster as WMS?

I am learning now geodjango. I made basic web app with postgis database. With openlayers iam displaying basic wms map and I want to add other layers from my postgis database. I use render_to_kml ...
1
vote
0answers
32 views

Leaflet: How to enable pan & zoom while GeoJSON still rendering?

I've overlaid a huge GeoJSON geometry on top of my Leaflet map, covering about 20 countries' borderlines (about 1,5 million vertices) using "L.geoJson". Each time I zoom in/out, the computer has to ...
0
votes
2answers
260 views

Vector Tile Rendering on iOS

I'm developing an iOS app for displaying my own custom map data (on GeoServer). The SDK I'm using to display my map is route-me (Alpstein fork) as the map viewer for now. route-me supports raster ...
0
votes
0answers
35 views

Java library for rendering

We have some shapefile data and we tried to render them according to scope (boundingbox) from user. For example, the client may send request like this: ...
0
votes
1answer
137 views

Joining intersected polylines using rules based rendering [duplicate]

Possible Duplicate: Setting rendering order of line layers in QGIS I have trouble getting two intersecting polylines to look like they were joined at rendering. I am using rules based ...
0
votes
0answers
49 views

Geojson not rendered with Mapnik

I am trying to generate a tile with Mapnik with a GeoJSON. The stylesheet.xml with the part to render the GeoJSON is the following: <Style name="cities" filter-mode="first"> <Rule> ...
1
vote
1answer
61 views

Labels appear and disappear for no apparent reason using QGIS?

I'm going through the Alaska sample data tutorial for QGIS 2.2.0. Some of the lake labels appear and disappear at different scales when zooming. At 1:314,460 Becharof is visible, but Lower Ugashik ...
0
votes
1answer
93 views

mapnik rendering with OSM Carto style

When I want to make png tiles that look like ones in osm tile server what I need to do? Do I need to import data to postGIS db somehow WITH osm Carto style or I can just import it "normally" w/o ...
0
votes
1answer
186 views

Rendering layer in ArcMap using ArcObjects and Python?

I succesfully wrote a script to render a Uniquevaluerenderer in a layer in ArcMAP using symbols from 4 parameters (values) read from the attribute table of the layer. I used ArcObjects and VBA, but ...
0
votes
0answers
6 views

Is the label engine or data server responsible for reducing the number of features

We are working on an android application which load vector features from the server and render(with labeling) them in the client. Since there maybe a lot of features in a single viewport, so the map ...
1
vote
1answer
65 views

mapnik generate_tiles.py error using .xml from TileMill

I wanted to render png tiles (like form tile server of osm). I made postGIS db, succesfully run TileMill with OSMBright style. I read that I need now export mapnik xml from TileMill. I checked Mapnik ...
12
votes
3answers
4k views

Is there a way to render lines with a smooth (bezier) curves in QGIS?

I am moving from creating maps with Illustrator to making them with QGIS and actual data. One of the things I haven't been able to re-create in QGIS are the smooth curved lines I can get in ...
1
vote
2answers
53 views

Rendering a map in QgsComposition on Win 7 / 8 in QGIS 2.2.0 with QgsComposerMap gives blank map

I'm writing a plugin for QGIS 2.2.0 which should render a pdf file with a map and some text. The code is working under Linux (current Arch) and Windows XP, but it's not working on Windows 7 or 8. ...
0
votes
0answers
49 views

Can OpenLayers2 render a completely custom font-face in a text or point symbolizer?

I am trying to style a feature using a custom font. Geoserver has an extension allowing external graphics in SLD to be defined by a font. OpenLayers doesn't appear to support this particular ...
0
votes
0answers
46 views

ArcGIS JavaScript manually render a layer with supplied JSON

Given the following JSON which is retrieved outside the ArcGIS/dojo framework, how would I go about rendering this layer? Thanks in advance! { "currentVersion": 10.01, ...
0
votes
1answer
109 views

Setting a renderer that uses a function for a dynamic layer in ArcGIS JavaScript API

How can I, if possible, set a renderer for an ArcGISDynamicMapServiceLayer which uses a function to determine feature values instead of just attribute values? When using the following code, the ...
0
votes
1answer
91 views

QGis: scripting the map rendering (multiple similar maps from one shapefile)

I would like to ask for advice on creating a Python script that will provide the opportunity to render a plenty of similar maps (with the same extent, projection, layout, color scheme and composition, ...
0
votes
0answers
30 views

ArcGIS JavaScript problem with legend to show attributes

I'm running a geoprocessing task in my webapplication. When the task generated some results i destroy an existing legend and build up a new one that shows the legend for the resulting layers. That is ...
3
votes
2answers
35 views

How to control how points are displayed across different programs

I'm completely new to GIS, but I'm trying to control how Points are displayed (shape, color, size, etc) across different programs (ArcGis, qGis, etc). Is there a way to control the rendering of ...
1
vote
2answers
96 views

QGIS: drawing order of lines and polygons (line between polygon)

I have 2 layers. One with forests and lakes (polygon) and one with rivers (line). Now I want the features to draw in that order: The river have to be UNDER the LAKES and the forest have to be UNDER ...
1
vote
2answers
46 views

QGIS 2.0 How can i get a precisely Rendering time?

I work with QGIS 2.0.1. I have a large number of raster data files and i selected different methods to represent them. Method: Import all raster data as individual files Method: Generate a single ...
3
votes
1answer
56 views

Why does Save as “Rendered Image” change the raster styling?

Rasters exported from QGIS (via Save As > Rendered Image) do not retain original styling. See attached. Any thought on how to prevent this error? The top image is exported from QGIS as a .bmp, the ...
0
votes
0answers
184 views

Mapnik render Error : Could not create datasource for type 'postgis'

I try to use mapnik render for a tile server. During the initialization 'renderd -f -c /usr/local/etc/renderd.conf', the following error message is displayed : An error occurred while loading the map ...
1
vote
1answer
393 views

How to use PyQGIS ( Python QGIS API ) to open/close Update Drawing Order checkbox in QGIS2's Layers (Legend Interface)

Thanks qgis 2, the Legend Interface (layers dockwidget) now has Update Drawing Order check box on right-click mouse context menu. I think this feature can let user temporally closes rendering, then ...
1
vote
0answers
177 views

How to use CropCoverage Render Transformation in Geoserver SLD (WPS)? [closed]

I have yet to find an example on the web (or in code) of anyone using the "Crop Coverage" Render Transformation from a Geoserver SLD. Does anyone have an example or at least be able to point me to ...
1
vote
0answers
100 views

How to create a color ramp to change the color of a svg image in arcgis javascript api

I have a svg image to create a PictureMarkerSimbol for a feature. How to create a color ramp to change the svg color based on a criteria, like a attribute on my feature? The ideia is like that: var ...
0
votes
1answer
71 views

How can i stop rendering Qgis

In my python plugin ,i select features from a vector layer dynamically using a loop and executing : VectorLayer.select(feature.id()) when i start the loop, the selection become very slow because ...
1
vote
1answer
164 views

How to automate creation of PNG maps using Python?

I have a project with 50 vector layers and I have done custom styling for them. Now I want to make around 30 png files with different xmin, ymin, xmax, ymax. The output size (png) should be width ...
2
votes
2answers
151 views

How do I produce map images for Wikipedia?

I would like to make several map images (e.g. SVG or PNG) like those on wikipedia but in not popular projection. I am interested in scripting solution. Here I found this note: Generation Notes perl ...
2
votes
1answer
983 views

Manually building a tile server

I use this instruction http://switch2osm.org/serving-tiles/manually-building-a-tile-server-12-04/ I have the problem on the step "Starting your tileserver" sudo mkdir /var/run/renderd sudo chown ...
3
votes
1answer
204 views

Dynamically rendering polygon, point, and line features

I have a Feature Collection consisting of features having id, color_code, etc as attributes. I have to render this feature with the color in the color_code attribute. Is this possible and please ...
2
votes
2answers
1k views

Google Maps/ OpenLayers only rendering top left tiles

I'm seeing a weird issue with Google Maps and OpenLayers. When loading a page as shown below, only the two top-left tiles render, leaving the rest of the map blank. I looked in the Network tab in ...
26
votes
10answers
11k views

How would I draw and visualize custom maps based on OSM data?

I would like to be able to use openstreetmap data for a specific region as a source and "draw" from that the map of infrastructure improvements - mostly roads. I want it to be self-hosted (not ...
2
votes
4answers
179 views

Render a map showing lots of individual traces/routes simultaneously

Google's "My places" is great for showing lots of traces (in my case, paths representing bike rides I've done). But it only shows 20 or so per page. I'd really like a map (a statically rendered .png ...
1
vote
0answers
79 views

GeoExt Feature Renderer

I am working with OpenLayers and GeoExt and I have the following problem: I have a point vector layer and I want to create a style that contains 2 symbolizers. In this example they show how this ...
0
votes
0answers
29 views

Set selection in mod_tile

is it posible to set a selection which is allowed to render by mod_tiles? I only need tiles of a special selection like one country or a defined bbox.
0
votes
1answer
222 views

Does tile server renders every request?

I am trying to understand how tile server handle requests. I red about Mapnik which "creates" the map using OSM, Does "creates" means that every request is rendered and returned? If yes what is the ...
1
vote
1answer
796 views

Why won't GeoServer render my SVG symbols?

I'm trying to use GeoServer to render a point layer with custom symbols. This worked perfectly well when my symbols were PNGs, but we haven't decided exactly what size our symbols should be, so I ...
3
votes
0answers
161 views

Can you set a QGIS print composer to render the map as default?

I have set up a number of templates for the print composer in QGIS. In the Print Composer, there is the option to have the map image displayed in 3 ways: as a blank rectangle with no updates until ...
3
votes
1answer
325 views

How to control the rendering priority/order of feature layers?

I am displaying polygon, line and point feature layers on a button click event and adding layers in order based on their geometry type, e.g.: polygon -> line -> point. In certain cases layers are ...
0
votes
0answers
106 views

How to access the rules of QgsRuleBasedRendererV2 using python?

I can't get access to the rules of rule-based renderer, python says there's no attribute "rootRule", though documentation says it should be (http://www.qgis.org/api/classQgsRuleBasedRendererV2.html) ...
2
votes
1answer
407 views

Apply QGIS Style to osm-File like in Open Cycle Map, Landscape Base-Layer

I try to mimick a rendering style like in Open Cycle Map (landscape base layer) in QGIS. However, I'm not able to find certain elements (i.e., wood and rivers) that are used in Open Cycle Map but seem ...
4
votes
1answer
163 views

How to render features with different symbols depending on in memory data?

We are developing a complex ArcMap extension software which contains class extensions, a workspace extension and some ArcMap extensions. The purpose of the software is to link our existing management ...
6
votes
1answer
1k views

How to Optimize Openstreetmap Tile Rendering?

I am currently trying to render Water (3,198,333 records) and detailed world borders (processed_p) for the world. I am successful in rendering both layers, but I am not happy with performance. My ...
3
votes
1answer
341 views

How to use scale -rule based renderer in QGIS?

I wish to render a shapefile of builindings such that at scales below 1:5000, they have a border, and above 1:5000, they do not have a border. For this, I went into layer properties, selected ...
1
vote
0answers
63 views

Get layers and apply renderer to layer list from SDE ArcMap

I have the code that gets the layers from SDE, but when i add them to the map they have a different symbology. there is about 80 layers and i am accessing the SDE by getting the workspace from a ...
1
vote
0answers
60 views

esri.tasks.GenerateRendererTask for non 10.1 ArcServer

I wish to use the same features as the esri.tasks.GenerateRendererTask but it seems that it can be only used on ArcServer 10.1. Is it possible to achieve the same dynamic natural jenks breaks in the ...
1
vote
2answers
1k views

Using render_list to render only map extract

I am trying to render an area where I have added an extract from the planet file with render_list. The command I am using is render_list -x 159 -X 179 -y 160 -Y 410 -n 2 ...