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1d
comment Small discrepancy in scale reported by OpenLayers and GeoServer (after DPI fix)
Yes, data is stored in 4326. As OpenLayers is configured to display in 900913 the WMS requests ask GeoServer for the data in 900913 - GeoServer is doing the projection.
1d
comment Small discrepancy in scale reported by OpenLayers and GeoServer (after DPI fix)
@GIS-Jonathan good question, yes the OpenLayers previewer does also present the same discrepancy (its DPI is set the same as mine)
Dec
16
comment Open Layers 3 geoJSON not loading
you should monitor network activity either through a browser's developer tools or fiddler/equivalent and see how far your geoJSON request gets. If the response completes just fine this is worth adding to your question
Dec
16
comment ArcGIS JavaScript API: onAnimate Error
relying on a timeout to make something work may eventually result in troublesome bugs that are very difficult to reproduce. If you are zooming to a point feature that is requested from the server you must ensure that the zooming happens in an event handler that fires when that request is complete, instead of guessing how long the request will take.
Dec
15
comment GeoServer rendering performance significantly affected by vector icon size
@BradHards thanks for the tip - I set up the Marlin renderer and it resulted in a significant performance gain in high-concurrency environments and also removed the spike in response time for larger vector icons (raster performance remains unchanged).
Dec
15
comment GeoServer rendering performance significantly affected by vector icon size
I'm not sure I agree - as I said in my edit raster icons don't show the same relationship, but also the vector rendering time plateaus around the high-30/low-40 pixels. The SLD snippet does show how I'm measuring size - with the content of the <Size> element
Dec
13
comment GeoServer rendering performance significantly affected by vector icon size
Do I have a choice? I don't think I've come across this so far so if there is a default I'm probably using that one.
Oct
23
comment Definitive list of Proj4 supported coordinate systems
OK perhaps I misunderstood how OpenLayers was handling my input string... I will have to study this problem a little more.
Oct
23
comment Definitive list of Proj4 supported coordinate systems
wait, I'm still confused - if proj4js only has a few EPSG definitions how is it that, once included, OpenLayers lets me say new OpenLayers.Projection('EPSG:2269') for example? I don't understand how these EPSG codes are associated with the relevant proj transform parameters. All I need to know is which EPSG strings will be understood out of the box
Oct
22
comment Making world map to show where hole drilled through centre of Earth starts/ends on land vs water?
looks like it doesn't work anymore, but there was this: zefrank.com/sandwich
Oct
21
comment Definitive list of Proj4 supported coordinate systems
@user30184 that's quite useful thanks, I'll give it a go
Oct
9
comment How to build GeoExplorer on Windows
these steps are no longer working due to a missing dependency - thanks for posting the zip
Mar
25
comment Optimising map cache creation performance in ArcGIS for Server 10.2.1
I think radouxju's comment was referring to disk I/O contention rather than permissions. The speed with which the processes can write image files could be the bottleneck.
Mar
11
comment How do I search dates using the ArcGIS REST API?
OK thanks for the info. I'm glad things have changed for 10.2 as expecting a service client to know the underlying architecture is ridiculous (and very 'ESRI')
Mar
4
comment JS/browser API library to show/interact with many markers with the best performance?
also "tailored for very high performance" implies that you don't think OpenLayers is already written to be fast. Mapping APIs is a competitive field and everyone wants fast
Mar
4
comment JS/browser API library to show/interact with many markers with the best performance?
I have asked two relevant questions: gis.stackexchange.com/questions/19117/… and gis.stackexchange.com/questions/18572/…
Feb
20
comment Create base maps from vector data
In GeoServer you will create a 'group layer' which combines your separate 5 layers, then the user will request this. This will also be used to generate your tile cache
Feb
13
comment Problem with WFS-T save strategy in Openlayers
Fiddler is currently available through mono on Linux / Mac in alpha form
Feb
7
comment How did OpenLayers 3 managed to export map from other domain?
you're still describing something that is irrelevant in this question. The site referenced in the question does not use a proxy.cgi script. If you don't believe me please see: i.imgur.com/gFMrczn.png If a proxy was used the tiles would come from something like ol3js.org/proxy.cgi, but they don't - they come from an entirely separate domain. The question's poster sees this and understands this means the canvas is indeed tainted. Your answer and comments are relevant to different questions but not this one. One may therefore choose to describe the answer as 'incorrect'
Feb
7
comment How did OpenLayers 3 managed to export map from other domain?
I mean in this case you are incorrect. I'm well aware that the proxy approach works, but the referenced application doesn't use it.