For the raster image you can build pyramid with gdaladdo, it's really useful to increase performances
2011/3/16 Frank Warmerdam <[email protected]> > On Tue, Mar 15, 2011 at 5:03 PM, Vince Miller <[email protected]> > wrote: > > 1. The following two lines of PHP from my application transform an php > image object into a raster map layer: > > > > imagepng($rmap, __MAPS_PATH__ . "resource.png"); > > $map->getLayerByName("resource")->set("data", __MAPS_PATH__ . > "resource.png"); > > > > The imagepng call is a major bottleneck when the extent of the layer is > large. > > Can the data in image "$rmap" be accessed for layer "resource" directly, > without the file write/read? If so, how? FYI, the following lines appear in > my mapfile: > > > Vince, > > There are no mechanisms to utilize a PHP image object as the > data in a mapserver raster layer without first writing to disk. I > gather PHP image resources are actually a handle to a gdImage > object, so if you needed it badly enough it should be possible to > write a PHP function that turn that gdImage into something that > was accessable to GDAL as a raster but that would be quite > involved and not something likely to go back into the core > distribution. > > Best regards, > > > > -- > > ---------------------------------------+-------------------------------------- > I set the clouds in motion - turn up | Frank Warmerdam, > [email protected] > light and sound - activate the windows | http://pobox.com/~warmerdam > and watch the world go round - Rush | Geospatial Programmer for Rent > _______________________________________________ > mapserver-users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/mapserver-users >
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