Re: [mapserver-users] Cent OS (6) and php-mapscript
On 04/06/2013 04:19 PM, Corey Carpenter wrote: Hi All, What is the best way to get php-mapscript for Cent 6? I see it is not in ELGIS. Will I have to compile it manually? I can definitely do that. If possible I would rather use a prepackaged build if they are available. Thanks. Hi Corey, the package is there and it is called php-mapserver. Peter -- Peter Hopfgartner web : www.r3-gis.com ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] zoomable slider (looking) map from Mapserver
All, Ok, granted weird title for a posting. I have a little reporting project that I'm thinking about related to GPS tracking. Bouncing the idea off of folks here in the hopes that someone may have tried this somewhere else or maybe has a better way. I need to generate a slider control for handling sorting through the GPS data for individual vehicles on a daily basis. The idea is to build a rapid, visually oriented, lookup system for the data. To begin with, I would like to start the process by querying for the data for a single GPS ID for a 24 hour period, generate a time based slider control that can be used to pick a point in time, and then have a slippy map (OpenLayers) auto zoom to that location, once a location has been decided on. I found an example on the Openlayers site for the slippy map part, I have a service (yet to build) that can grab the location data by time increments of 24 hours, but the slider part is looking like it might be a bit intensive if built in a standard way. The data for the GPS devices can come in all sorts of time resolutions, some are based on 15 - 20 sec updating, while others are using 3 sec update increments. The resulting 24hr dataset can be somewhat sizeable as a result. Here is my weird idea. Make the Slider into a MapServer map call that is aggregated at certain time increments (Map tile pyramid levels, only in a single direction, left/right) if the slider is zoomed more resolution of time appears for picking the location in the slippy map. The slider becomes a real wide but not very tall map but only for displaying, and picking by the user a new time increment. This approach should therefore compensate for browser view size as well as density of time data, by making an appropriately sized, scaled tile on demand. It should also be adaptable in the future to starting out with larger time increments to show where GPS activity was, and then to zoom in on that time increment for detailed analysis. Ok, I'm ready, tell me it's a stupid way to go . . . Bobb ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] zoomable slider (looking) map from Mapserver
Bob, I'm not sure I've successfully visualized your solution, but I do appreciate your problem. While the web mapping community has come up with decent set of concepts and tools for spatially navigating data (pan, zoom, etc), we seem to be lacking a standard, intuitive (?) set of tools for temporally exploring data with a strong geospatial connection. Some of the temporal concepts stolen from geography that we'll have to deal with: event extents, event resolution/density, temporal scale (especially with respect to animation),... I think the eventual solution will be JavaScript-based, maybe nearly the size of OpenLayers effort. I'm leaning towards having separate panel (like we tend to have for the legend, etc) for time navigation. For layout and interaction ideas, have a look at the D3 examples (https://github.com/mbostock/d3/wiki/Gallery), particularly the CrossFilter (http://square.github.com/crossfilter/) example. Sorry, no solution; just encouragement... Best Regards, Brent Fraser On 4/9/2013 7:48 AM, Basques, Bob (CI-StPaul) wrote: All, Ok, granted weird title for a posting. I have a little reporting project that I'm thinking about related to GPS tracking. Bouncing the idea off of folks here in the hopes that someone may have tried this somewhere else or maybe has a better way. I need to generate a slider control for handling sorting through the GPS data for individual vehicles on a daily basis. The idea is to build a rapid, visually oriented, lookup system for the data. To begin with, I would like to start the process by querying for the data for a single GPS ID for a 24 hour period, generate a time based slider control that can be used to pick a point in time, and then have a slippy map (OpenLayers) auto zoom to that location, once a location has been decided on. I found an example on the Openlayers site for the slippy map part, I have a service (yet to build) that can grab the location data by time increments of 24 hours, but the slider part is looking like it might be a bit intensive if built in a standard way. The data for the GPS devices can come in all sorts of time resolutions, some are based on 15 -- 20 sec updating, while others are using 3 sec update increments. The resulting 24hr dataset can be somewhat sizeable as a result. Here is my weird idea. Make the Slider into a MapServer map call that is aggregated at certain time increments (Map tile pyramid levels, only in a single direction, left/right) if the slider is zoomed more resolution of time appears for picking the location in the slippy map. The slider becomes a real wide but not very tall map but only for displaying, and picking by the user a new time increment. This approach should therefore compensate for browser view size as well as density of time data, by making an appropriately sized, scaled tile on demand. It should also be adaptable in the future to starting out with larger time increments to show where GPS activity was, and then to zoom in on that time increment for detailed analysis. Ok, I'm ready, tell me it's a stupid way to go . . . Bobb ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] zoomable slider (looking) map from Mapserver
Another idea: With RFC 96 adding time support to mapcache, maybe it would be possible to create a server-side app the can request tiles from mapcache, and create and Flash script to display them based on your slider. Or create an animated gif, not that you have much control over that after it is created. But some ideas to chew on. -Steve W On 4/9/2013 11:52 AM, Brent Fraser wrote: Bob, I'm not sure I've successfully visualized your solution, but I do appreciate your problem. While the web mapping community has come up with decent set of concepts and tools for spatially navigating data (pan, zoom, etc), we seem to be lacking a standard, intuitive (?) set of tools for temporally exploring data with a strong geospatial connection. Some of the temporal concepts stolen from geography that we'll have to deal with: event extents, event resolution/density, temporal scale (especially with respect to animation),... I think the eventual solution will be JavaScript-based, maybe nearly the size of OpenLayers effort. I'm leaning towards having separate panel (like we tend to have for the legend, etc) for time navigation. For layout and interaction ideas, have a look at the D3 examples (https://github.com/mbostock/d3/wiki/Gallery), particularly the CrossFilter (http://square.github.com/crossfilter/) example. Sorry, no solution; just encouragement... Best Regards, Brent Fraser On 4/9/2013 7:48 AM, Basques, Bob (CI-StPaul) wrote: All, Ok, granted weird title for a posting. I have a little reporting project that I’m thinking about related to GPS tracking. Bouncing the idea off of folks here in the hopes that someone may have tried this somewhere else or maybe has a better way. I need to generate a slider control for handling sorting through the GPS data for individual vehicles on a daily basis. The idea is to build a rapid, visually oriented, lookup system for the data. To begin with, I would like to start the process by querying for the data for a single GPS ID for a 24 hour period, generate a time based slider control that can be used to pick a point in time, and then have a slippy map (OpenLayers) auto zoom to that location, once a location has been decided on. I found an example on the Openlayers site for the slippy map part, I have a service (yet to build) that can grab the location data by time increments of 24 hours, but the slider part is looking like it might be a bit intensive if built in a standard way. The data for the GPS devices can come in all sorts of time resolutions, some are based on 15 – 20 sec updating, while others are using 3 sec update increments. The resulting 24hr dataset can be somewhat sizeable as a result. Here is my weird idea. Make the Slider into a MapServer map call that is aggregated at certain time increments (Map tile pyramid levels, only in a single direction, left/right) if the slider is zoomed more resolution of time appears for picking the location in the slippy map. The slider becomes a real wide but not very tall map but only for displaying, and picking by the user a new time increment. This approach should therefore compensate for browser view size as well as density of time data, by making an appropriately sized, scaled tile on demand. It should also be adaptable in the future to starting out with larger time increments to show where GPS activity was, and then to zoom in on that time increment for detailed analysis. Ok, I’m ready, tell me it’s a stupid way to go . . . Bobb ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] zoomable slider (looking) map from Mapserver
With Brent in sentiments. Integration of d3 with OL and Leaflet would go a long way to expanding our arsenal of mapping and viz tools. -- Puneet Kishor Policy Coordinator for Science and Data Creative Commons On Apr 9, 2013, at 8:52 AM, Brent Fraser bfra...@geoanalytic.com wrote: Bob, I'm not sure I've successfully visualized your solution, but I do appreciate your problem. While the web mapping community has come up with decent set of concepts and tools for spatially navigating data (pan, zoom, etc), we seem to be lacking a standard, intuitive (?) set of tools for temporally exploring data with a strong geospatial connection. Some of the temporal concepts stolen from geography that we'll have to deal with: event extents, event resolution/density, temporal scale (especially with respect to animation),... I think the eventual solution will be JavaScript-based, maybe nearly the size of OpenLayers effort. I'm leaning towards having separate panel (like we tend to have for the legend, etc) for time navigation. For layout and interaction ideas, have a look at the D3 examples (https://github.com/mbostock/d3/wiki/Gallery), particularly the CrossFilter (http://square.github.com/crossfilter/) example. Sorry, no solution; just encouragement... Best Regards, Brent Fraser On 4/9/2013 7:48 AM, Basques, Bob (CI-StPaul) wrote: All, Ok, granted weird title for a posting. I have a little reporting project that I’m thinking about related to GPS tracking. Bouncing the idea off of folks here in the hopes that someone may have tried this somewhere else or maybe has a better way. I need to generate a slider control for handling sorting through the GPS data for individual vehicles on a daily basis. The idea is to build a rapid, visually oriented, lookup system for the data. To begin with, I would like to start the process by querying for the data for a single GPS ID for a 24 hour period, generate a time based slider control that can be used to pick a point in time, and then have a slippy map (OpenLayers) auto zoom to that location, once a location has been decided on. I found an example on the Openlayers site for the slippy map part, I have a service (yet to build) that can grab the location data by time increments of 24 hours, but the slider part is looking like it might be a bit intensive if built in a standard way. The data for the GPS devices can come in all sorts of time resolutions, some are based on 15 – 20 sec updating, while others are using 3 sec update increments. The resulting 24hr dataset can be somewhat sizeable as a result. Here is my weird idea. Make the Slider into a MapServer map call that is aggregated at certain time increments (Map tile pyramid levels, only in a single direction, left/right) if the slider is zoomed more resolution of time appears for picking the location in the slippy map. The slider becomes a real wide but not very tall map but only for displaying, and picking by the user a new time increment. This approach should therefore compensate for browser view size as well as density of time data, by making an appropriately sized, scaled tile on demand. It should also be adaptable in the future to starting out with larger time increments to show where GPS activity was, and then to zoom in on that time increment for detailed analysis. Ok, I’m ready, tell me it’s a stupid way to go . . . Bobb ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] zoomable slider (looking) map from Mapserver
Brent, I did look at the D3 stuff a while back. I liked the visualizations, but for some reason it looked like overkill for (me and) my temporal needs. I'm of the mind that whatever I put together now will likely just be a step towards something more streamlined as a second coming. I think more thought needs to be applied to the user experience and tech design elements before deciding on a best approach. With that in mind, I think I'm going to build it out with the intent that it's not likely going to be the final version. Bobb From: Brent Fraser [mailto:bfra...@geoanalytic.com] Sent: Tuesday, April 09, 2013 10:53 AM To: Basques, Bob (CI-StPaul) Cc: mapserver-users@lists.osgeo.org Subject: Re: [mapserver-users] zoomable slider (looking) map from Mapserver Bob, I'm not sure I've successfully visualized your solution, but I do appreciate your problem. While the web mapping community has come up with decent set of concepts and tools for spatially navigating data (pan, zoom, etc), we seem to be lacking a standard, intuitive (?) set of tools for temporally exploring data with a strong geospatial connection. Some of the temporal concepts stolen from geography that we'll have to deal with: event extents, event resolution/density, temporal scale (especially with respect to animation),... I think the eventual solution will be JavaScript-based, maybe nearly the size of OpenLayers effort. I'm leaning towards having separate panel (like we tend to have for the legend, etc) for time navigation. For layout and interaction ideas, have a look at the D3 examples (https://github.com/mbostock/d3/wiki/Gallery), particularly the CrossFilter (http://square.github.com/crossfilter/) example. Sorry, no solution; just encouragement... Best Regards, Brent Fraser On 4/9/2013 7:48 AM, Basques, Bob (CI-StPaul) wrote: All, Ok, granted weird title for a posting. I have a little reporting project that I'm thinking about related to GPS tracking. Bouncing the idea off of folks here in the hopes that someone may have tried this somewhere else or maybe has a better way. I need to generate a slider control for handling sorting through the GPS data for individual vehicles on a daily basis. The idea is to build a rapid, visually oriented, lookup system for the data. To begin with, I would like to start the process by querying for the data for a single GPS ID for a 24 hour period, generate a time based slider control that can be used to pick a point in time, and then have a slippy map (OpenLayers) auto zoom to that location, once a location has been decided on. I found an example on the Openlayers site for the slippy map part, I have a service (yet to build) that can grab the location data by time increments of 24 hours, but the slider part is looking like it might be a bit intensive if built in a standard way. The data for the GPS devices can come in all sorts of time resolutions, some are based on 15 - 20 sec updating, while others are using 3 sec update increments. The resulting 24hr dataset can be somewhat sizeable as a result. Here is my weird idea. Make the Slider into a MapServer map call that is aggregated at certain time increments (Map tile pyramid levels, only in a single direction, left/right) if the slider is zoomed more resolution of time appears for picking the location in the slippy map. The slider becomes a real wide but not very tall map but only for displaying, and picking by the user a new time increment. This approach should therefore compensate for browser view size as well as density of time data, by making an appropriately sized, scaled tile on demand. It should also be adaptable in the future to starting out with larger time increments to show where GPS activity was, and then to zoom in on that time increment for detailed analysis. Ok, I'm ready, tell me it's a stupid way to go . . . Bobb ___ mapserver-users mailing list mapserver-users@lists.osgeo.orgmailto:mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] MapCache and the GoogleCRS84Quad TileMatrixSet
Dear all I have a question regarding the GoogleCRS84Quad TileMatrixSet defined in MapCache. MapCache specifies this in the docs with the first level [0] as pixel resolution 0.70312500 deg, and an extent of extent-180 -90 180 90/extent and returns the GoogleCRS84Quad TileMatrixSet in the Capabilities response like TileMatrixSet IdentifierWGS84/Identifier TitleGoogleCRS84Quad/Title SupportedCRSurn:ogc:def:crs:EPSG:6.3:4326/SupportedCRS BoundingBox crs=urn:ogc:def:crs:EPSG:6.3:4326 LowerCorner-180.00 -90.00/LowerCorner UpperCorner180.00 90.00/UpperCorner /BoundingBox WellKnownScaleSeturn:ogc:def:wkss:OGC:1.0:GoogleCRS84Quad/WellKnownScaleSet TileMatrix Identifier0/Identifier ScaleDenominator279541132.01435887813568115234/ScaleDenominator TopLeftCorner90.00 -180.00/TopLeftCorner TileWidth256/TileWidth TileHeight256/TileHeight MatrixWidth2/MatrixWidth MatrixHeight1/MatrixHeight /TileMatrix . /TileMatrixSet This looks clear and logical, but the OGC specs at http://portal.opengeospatial.org/files/?artifact_id=35326 define this TileMatrixSet differently as E.3 GoogleCRS84Quad (urn:ogc:def:wkss:OGC:1.0:GoogleCRS84Quad) This well-known scale set has been defined to allow quadtree pyramids in CRS84. Level 0 allows representing the whole world in a single 256x256 pixels (where the first 64 and last 64 lines of the tile are left blank). The next level represents the whole world in 2x2 tiles of 256x256 pixels and so on in powers of 2. Scale denominator is only accurate near the equator. The level 0 in the OGC specs uses a resolution of 1.40625000. The tile 0/0/0 in MapCache is not a single tile as in the OGC specs but the first out of 2 tiles for this level, correctly defined with MatrixWidth 2 and MatrixHeight 1 (level 1 has 4x2 tiles). For me the OGC specs are not logical, because the TopLeft corner would correspond to 180 -180 degrees which makes no sense for me, but somehow they are regarded as the default specs... So the XML definition of the OGC specs should probably result in something like TileMatrix Identifier0/Identifier ScaleDenominator559082264.0287178/ScaleDenominator TopLeftCorner180.00 -180.00/TopLeftCorner TileWidth256/TileWidth TileHeight256/TileHeight MatrixWidth1/MatrixWidth MatrixHeight1/MatrixHeight /TileMatrix Unfortunately the OGC doc does not provide this matrix set's full definition in XML to check this. So I'm wondering which is the correct definition? And any idea how to deal with this discrepancy? Thanks Armin ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] How to pass variables to a query template?
I have some code which sends query results to a template for display, using the MapServer processquerytemplate method. This works fine, but I'd also like to pass a variable to the template to be output in the result as well. I have been looking at the documentation on templates, http://mapserver.org/mapfile/template.html , and saw the [post or get variable name]. This looks promising but I'm not sure how to use this with PHP-Mapscript. How does one do this? ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] How to pass variables to a query template?
Bob, Since you are using PHP Mapscript, you have to add that step to your PHP script yourself. You may be able to simply put the request array into the parameter list: $results = $map-processquerytemplate($_REQUEST, false); or you may have to do some array massaging before passing the Request keyword/values to the processquerytemplate function... Best Regards, Brent Fraser On 4/9/2013 1:58 PM, Bistrais, Bob wrote: I have some code which sends query results to a template for display, using the MapServer processquerytemplate method. This works fine, but I'd also like to pass a variable to the template to be output in the result as well. I have been looking at the documentation on templates, http://mapserver.org/mapfile/template.html http://mapserver.org/mapfile/template.html , and saw the [post or get variable name]. This looks promising but I'm not sure how to use this with PHP-Mapscript. How does one do this? ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] How to pass variables to a query template?
Thanks Brent, That give me something to go on and a few ideas. From: Brent Fraser [mailto:bfra...@geoanalytic.com] Sent: Tuesday, April 09, 2013 4:16 PM To: Bistrais, Bob Cc: mapserver-users@lists.osgeo.org Subject: Re: [mapserver-users] How to pass variables to a query template? Bob, Since you are using PHP Mapscript, you have to add that step to your PHP script yourself. You may be able to simply put the request array into the parameter list: $results = $map-processquerytemplate($_REQUEST, false); or you may have to do some array massaging before passing the Request keyword/values to the processquerytemplate function... Best Regards, Brent Fraser On 4/9/2013 1:58 PM, Bistrais, Bob wrote: I have some code which sends query results to a template for display, using the MapServer processquerytemplate method. This works fine, but I'd also like to pass a variable to the template to be output in the result as well. I have been looking at the documentation on templates, http://mapserver.org/mapfile/template.html , and saw the [post or get variable name]. This looks promising but I'm not sure how to use this with PHP-Mapscript. How does one do this? ___ mapserver-users mailing list mapserver-users@lists.osgeo.orgmailto:mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
