[gdal-dev] Single multi-resolution tiled TIFF image

2010-07-30 Thread Gajera Tejas
Hi, I was wondering if any one knows how to publish Single multi-resolution tiled TIFF image using OpenLayers. Regards, Tejas Gajera ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev

Re: [gdal-dev] RFC 29: OGR Set Desired Fields

2010-07-30 Thread Tamas Szekeres
2010/7/30 Frank Warmerdam > > I do not agree with applications directly changing the OGRFieldDefn, even > if ultimately the flag is stored here. There needs to be a virtual method > on the OGRLayer (IMHO) so that drivers have an opportunity to hook the > method to do something special when the l

Re: [gdal-dev] 4 point, projective warping

2010-07-30 Thread Manuel Massing
Hi Jeffrey, > I've thought about implementing a projective transform in the qgis > georeferencer, so if you're interested I'll let you know when I get around > to it. If this interest you, I have just commited an initial implementation of projective warping (see https://trac.osgeo.org/qgis/change

Re: [gdal-dev] Clearing OGR Attribute Filter on ESRI Personal Geodatabase

2010-07-30 Thread Joel Odom
Thanks, Frank. See http://trac.osgeo.org/gdal/ticket/3706 On Fri, Jul 30, 2010 at 10:10 AM, Frank Warmerdam wrote: > Joel Odom wrote: > >> What's the process by which I can submit that change, or request to have >> someone with commit access add it? Th

Re: [gdal-dev] Clearing OGR Attribute Filter on ESRI Personal Geodatabase

2010-07-30 Thread Frank Warmerdam
Joel Odom wrote: What's the process by which I can submit that change, or request to have someone with commit access add it? Thanks. Joel, If you got to the url I reference below there are brief instructions in the first paragraph on how to file a ticket. Basically you get an OSGeo Userid at

Re: [gdal-dev] Clearing OGR Attribute Filter on ESRI Personal Geodatabase

2010-07-30 Thread Joel Odom
What's the process by which I can submit that change, or request to have someone with commit access add it? Thanks. On Fri, Jul 30, 2010 at 9:54 AM, Frank Warmerdam wrote: > Joel Odom wrote: > >> I'm encountering an issue where once I've set an attribute filter on an >> ESRI personal geodataba

Re: [gdal-dev] Clearing OGR Attribute Filter on ESRI Personal Geodatabase

2010-07-30 Thread Frank Warmerdam
Joel Odom wrote: I'm encountering an issue where once I've set an attribute filter on an ESRI personal geodatabase, I cannot clear that filter. If I pass NULL to SetAttributeFilter, the filter is internally set to "", which makes future queries return zero results instead of all rows. Examini

Re: [gdal-dev] RFC 29: OGR Set Desired Fields

2010-07-30 Thread Frank Warmerdam
Martin Dobias wrote: Hi Tamas On Thu, Jul 29, 2010 at 9:10 PM, Tamas Szekeres wrote: Frank, If you refer to the OGR_GEOMETRY, OGR_GEOM_WKT, OGR_GEOM_AREA special fields, both return a meaningful value (ie. an empty string) when the geometry is null. In this regard it would be enough to disabl

Re: [gdal-dev] RFC 29: OGR Set Desired Fields

2010-07-30 Thread Martin Dobias
Hi Tamas On Thu, Jul 29, 2010 at 9:10 PM, Tamas Szekeres wrote: > Frank, > > If you refer to the OGR_GEOMETRY, OGR_GEOM_WKT, OGR_GEOM_AREA special > fields, both return a meaningful value (ie. an empty string) when the > geometry is null. In this regard it would be enough to disable only the > ge

Re: [gdal-dev] Save to DXF with specific layer name with c#

2010-07-30 Thread Andreas Neumann
Hi Colin, Not sure if creation of layers is yet supported. I think it is only supported if you created the layers in advance in the header.dxf file. Frank Warmerdam is now working on a second round of improvements where automatic layer creation (even if the layers aren't present in header.dxf) sh

[gdal-dev] Clearing OGR Attribute Filter on ESRI Personal Geodatabase

2010-07-30 Thread Joel Odom
I'm encountering an issue where once I've set an attribute filter on an ESRI personal geodatabase, I cannot clear that filter. If I pass NULL to SetAttributeFilter, the filter is internally set to "", which makes future queries return zero results instead of all rows. Examining the personal geoda

[gdal-dev] Save to DXF with specific layer name with c#

2010-07-30 Thread Colin Wright
I'm using GDAL/OGR 1.7.2 with the C# bindings to write a tool that will export data to various formats. When it exports to DXF I want it to use a specific layer name rather than using the default dxf layer 0. The problem is that even though I'm setting the attribute "Layer" for each feature, it

Re: [gdal-dev] GeoTiff null values

2010-07-30 Thread Chaitanya kumar CH
Filippo, Please note that those values are called nodata values. Nodata value is assigned a specific value during the creation of the raster and all the pixels where data is unavailable are assigned that value. Using the python interface, you can find the specified value with GetNoDataValue(). Yo