Hot answers tagged

10

I added aerial imagery from GIS server and created fishnet over the area of interest: I use fishnet as index layer for my data driven pages, making sure the sorting order coincides with record order in fishnet table. I applied script (see below) to travel through pages, export them to temp raster, clip it to PNG raster named after page name. Result shows ...


3

concerning your question about how to update the bounding-boxes: Choose the layers menu: -- Click on the layer in the layers list: -- Recalculate the bounds If the extent keeps changing you could perhaps try to set the extent manually to the world extent...


2

For anyone who is still having this problem, in QGIS 2.10 you can go to Settings > Options > Rendering, and change the Map update interval to be larger. If QGIS can render all of the layers in less than this amount of time, it will update the whole canvas at once, which gets rid of the blinking. If it cannot update all the layers before this interval passes, ...


2

I believe you may want to alter the refresh rate. I have done this to get real time feeds for police/fire/EMS as well as field resources for search & rescue. All of these needed to have a much quicker refresh rate than the default. This will refresh the data every x seconds/minutes. As long as the data that you are serving is being refreshed, your ...


2

GeoServer comes bundled with GeoWebCache. Have a go at truncating that cache. Go to your GeoServer Admin Console in the web browser and choose the 'Tile Layers' section, then go to 'seed/truncate'. You can also do this directly with GWC by going to http://yourserver:8080/geoserver/gwc. See below:


2

By default shp2pgsql does NOT create indexes. You need to pass -I to make it generate a spatial index. http://postgis.net/docs/manual-1.3/ch04.html#id435762 Check if your table has an index by running \d tablename in psql. In the list of indexes should be a line with "gist" (unless you picked a different index) and your geometry column name. You can add ...


2

I've written a python script for this. This is the initial version of the script, so it needs to add certain values manually into the script. I've mentioned that in script. Here it is import math from pyproj import Proj, transform from PIL import Image import glob, os import sys from os import walk from os.path import join, getsize #this function would ...


2

Just overwrite the existing service when you begin the publishing, and when you do that you are given a chance to keep the existing cache or delete it. Tell it to keep it. It's super easy.


2

I would say that for zoom greater than 15, if you split your area of interest into smaller areas(Bounding box), you will be able to cache them in much less time by running multiple processes on a single machine. For example, you are running zoom 16 (having 50,000,00 tiles) on a machine and according to your average tile-caching speed, this process will ...


1

Another thing to try if you're using a standard query is creating a materialized view from the query, and building your tiles from that: http://www.postgresql.org/docs/9.3/static/sql-creatematerializedview.html What this will do is make you a table that stores the query (so you could potentially update it in the future). Make sure you have spatial indices ...


1

Based on the ESRI documenation (http://server.arcgis.com/en/server/latest/publish-services/linux/accelerating-map-cache-creation.htm) the best practice for the number of instances to use for caching is n + 1 where n is the number of cores running on the server. Your servers have 4 processors each and each X5690 processor has 6 cores according to the ...



Only top voted, non community-wiki answers of a minimum length are eligible