Re: [OpenLayers-Users] mapExtents for Layer vs mapExtents for Map

2009-11-22 Thread Eric Lemoine
On Mon, Nov 23, 2009 at 8:28 AM, Andreas Hocevar wrote: > Eric Lemoine wrote: >> >> On Monday, November 23, 2009, Andreas Hocevar >> wrote: >> >>> >>> Hi, >>> >>> srweal wrote: >>> Actually, to simplify this question a bit, can someone please just explain how the setting for m

[OpenLayers-Users] WFS + Filter

2009-11-22 Thread stash
Hello, I have a wfs layer with some points. Now I want to add a filter to this wfs layer, that only certain points are displayed. Here is the code: var my_filter = new OpenLayers.Filter.Comparison({ type: OpenLayers.Filter.Comparison.EQUAL_TO, property: "NAME", value: "Point

Re: [OpenLayers-Users] maxExtents for Layer vs maxExtents for Map

2009-11-22 Thread Andreas Hocevar
srweal wrote: > Thanks Andreas and Eric for your responses. But I still have one remaining > question. > > If I set maxExtents on a WMS overlay layer and it is smaller than the > maxExtents of my map, will tiles be requested from the WMS (or TileCache) > for areas that are outside the bounds speci

Re: [OpenLayers-Users] mapExtents for Layer vs mapExtents for Map

2009-11-22 Thread Andreas Hocevar
Eric Lemoine wrote: > On Monday, November 23, 2009, Andreas Hocevar wrote: > >> Hi, >> >> srweal wrote: >> >>> Actually, to simplify this question a bit, can someone please just explain >>> how the setting for mapExtents on a Layer, as opposed to setting mapExtents >>> on the Map differ? >

Re: [OpenLayers-Users] mapExtents for Layer vs mapExtents for Map

2009-11-22 Thread Eric Lemoine
On Monday, November 23, 2009, Andreas Hocevar wrote: > Hi, > > srweal wrote: >> Actually, to simplify this question a bit, can someone please just explain >> how the setting for mapExtents on a Layer, as opposed to setting mapExtents >> on the Map differ? >> > > The maxExtent of the active base la

Re: [OpenLayers-Users] First try with html5 canvas for layers

2009-11-22 Thread Eric Lemoine
On Thursday, November 19, 2009, Kris Geusebroek wrote: > Hi Eric, Hi Kris. Thanks for response. > > Indeed it's cool, thanks. > My goal was to write an application with open source technologies to > track cars driving around. > I wrote a prototype with geoserver and openlayers and this was > suc

Re: [OpenLayers-Users] maxExtents for Layer vs maxExtents for Map

2009-11-22 Thread srweal
Thanks Andreas and Eric for your responses. But I still have one remaining question. If I set maxExtents on a WMS overlay layer and it is smaller than the maxExtents of my map, will tiles be requested from the WMS (or TileCache) for areas that are outside the bounds specified for the WMS layer,

Re: [OpenLayers-Users] mapExtents for Layer vs mapExtents for Map

2009-11-22 Thread Eric Lemoine
On Friday, November 20, 2009, srweal wrote: > > Hi there, > > I'm a new OpenLayers user and am struggling with the use of the mapExtent > setting.  I have a WMS that renders imagery for me, which is being accessed > through a TileCache.  The imagery only covers part of my entire map, so I > want t

Re: [OpenLayers-Users] mapExtents for Layer vs mapExtents for Map

2009-11-22 Thread Andreas Hocevar
Hi, srweal wrote: > Actually, to simplify this question a bit, can someone please just explain > how the setting for mapExtents on a Layer, as opposed to setting mapExtents > on the Map differ? > The maxExtent of the active base layer takes precedence over the maxExtent of the map. For overla

Re: [OpenLayers-Users] mapExtents for Layer vs mapExtents for Map

2009-11-22 Thread srweal
Actually, to simplify this question a bit, can someone please just explain how the setting for mapExtents on a Layer, as opposed to setting mapExtents on the Map differ? I'm particularly interested in whether they each limit the tiles requested from the servers. My situation is that I have a lar

Re: [OpenLayers-Users] wrapDateLine with WMS, map covered by opaque film

2009-11-22 Thread Sige
I found that wrapDateLine tries to request http://maps.geonet.org.nz/tilecache/tilecache.py?LAYERS=nasagm&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&FORMAT=image%2Fjpeg&SRS=EPSG%3A4326&BBOX=-90,-270,0,-180&WIDTH=256&HEIGHT=256 map tiles outside th

Re: [OpenLayers-Users] Vector disappears when zooming in (sometimes)

2009-11-22 Thread Andreas Hocevar
Hi, Tommy74 wrote: > What does "renderer runs out of coordinate space" really mean? Is > there a limitation in OpenLayers/VML or is this a common > GIS-"feature"? Can it be fixed or is it possible to do a > simple workaround? The problem is that at high resolutions, when you have points that a

Re: [OpenLayers-Users] First try with html5 canvas for layers

2009-11-22 Thread Kris Geusebroek
Hi Adam, As Chris rightly point out there is already a canvas implementation of the OpenLayers.Renderer which can be used instead of VML or SVG renderer. My changes for using canvas in OpenLayers are currently concentrating on the other layer types like WMS or Grid layers. Cheers Kris