[mapserver-users] Starting with TIGER Line Data and MapServer
Hi, We are working on displaying the TIGER Data using MapServer. This is our first time with MapServer, and we would appreciate your help in the following areas: 1. We could run the Itasca Demo Application. However, we could not integrate our shapefiles with the sample Mapfile. We have read the Mapfile documentation at the MapServer site. Any pointers on creating Mapfile? 2. We have chosen a single state for our initial demo. However, the number of shapefiles is almost 300. How should we incorporate all these in the Mapfile? Any suggestions are welcome. Thanks. Monali Monali ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Starting with TIGER Line Data and MapServer
Monali Lodha wrote: Hi, We are working on displaying the TIGER Data using MapServer. This is our first time with MapServer, and we would appreciate your help in the following areas: 1. We could run the Itasca Demo Application. However, we could not integrate our shapefiles with the sample Mapfile. We have read the Mapfile documentation at the MapServer site. Any pointers on creating Mapfile? IIRC, Itasca Demo data is in some State Plain projection and Tiger Shapefiles are in geographic (unprojected) state. 2. We have chosen a single state for our initial demo. However, the number of shapefiles is almost 300. How should we incorporate all these in the Mapfile? Look at using TILEINDEX http://mapserver.org/optimization/index.html#optimization Any suggestions are welcome. Thanks. Monali Monali ___ 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] Starting with TIGER Line Data and MapServer
A few questions for you. Regarding #1 Were all of your shapes in the same projection as the Itasca demo? If not, their coordinates may have been far outside of the extents of the map. Regarding #2 Do you have 300 shapefiles, meaning you have 300 layers you wish to display? If so, you might want to take a look at an alternate solution than the Itasca demo. For example (toots own horn) GeoMOOSE is designed to allow multiple mapfiles to be used within a single application. It makes the management of the large number of layers much more palatable. We also have a number of users that are at the same level of layer management as you are and could give more suggestions on how to best manage that data for use in a Web GIS. - Original Message From: Monali Lodha monalilo...@gmail.com To: mapserver-users@lists.osgeo.org Sent: Tue, November 3, 2009 8:14:38 AM Subject: [mapserver-users] Starting with TIGER Line Data and MapServer Hi, We are working on displaying the TIGER Data using MapServer. This is our first time with MapServer, and we would appreciate your help in the following areas: 1. We could run the Itasca Demo Application. However, we could not integrate our shapefiles with the sample Mapfile. We have read the Mapfile documentation at the MapServer site. Any pointers on creating Mapfile? 2. We have chosen a single state for our initial demo. However, the number of shapefiles is almost 300. How should we incorporate all these in the Mapfile? Any suggestions are welcome. Thanks. Monali Monali ___ 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] Starting with TIGER Line Data and MapServer
Thanks Stephen and Dan! @Stephen The recent Tiger Shapefiles come with .prj files and do have a projection. Could there be a different issue then? @Dan Regarding #1 Were all of your shapes in the same projection as the Itasca demo? If not, their coordinates may have been far outside of the extents of the map. Yes, we used the data for Itasca County. Regarding #2 Do you have 300 shapefiles, meaning you have 300 layers you wish to display? If so, you might want to take a look at an alternate solution than the Itasca demo. For example (toots own horn) GeoMOOSE is designed to allow multiple mapfiles to be used within a single application. It makes the management of the large number of layers much more palatable. We also have a number of users that are at the same level of layer management as you are and could give more suggestions on how to best manage that data for use in a Web GIS. No. We have a few (10-15) layers. However, the shapefiles corresponding to each layer are different for every county. I shall also forward my query in the GeoMoose mailing list. Thanks! ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
RE: [mapserver-users] Starting with TIGER Line Data and MapServer
Is the projection of the TIGER files and the output projection of the Itasca Demo the same? I am guessing that Itasca uses UTM Zone 15N (EPSG 26915) and that the TIGER data might be in a geographic spatial reference system (EPSG 3624?). If this is the case, you will need to define the input projection for your TIGER layers and make sure that you have an output projection set at the MAP level. In other words, even if all of the data sets have specified projections, you will need to tell MapServer what the input projections for each layer are if you need MapServer to utilize layers with different spatial reference systems. David. -Original Message- From: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Monali Lodha Sent: Tuesday, November 03, 2009 9:45 AM To: mapserver-users@lists.osgeo.org Subject: Re: [mapserver-users] Starting with TIGER Line Data and MapServer Thanks Stephen and Dan! @Stephen The recent Tiger Shapefiles come with .prj files and do have a projection. Could there be a different issue then? @Dan Regarding #1 Were all of your shapes in the same projection as the Itasca demo? If not, their coordinates may have been far outside of the extents of the map. Yes, we used the data for Itasca County. Regarding #2 Do you have 300 shapefiles, meaning you have 300 layers you wish to display? If so, you might want to take a look at an alternate solution than the Itasca demo. For example (toots own horn) GeoMOOSE is designed to allow multiple mapfiles to be used within a single application. It makes the management of the large number of layers much more palatable. We also have a number of users that are at the same level of layer management as you are and could give more suggestions on how to best manage that data for use in a Web GIS. No. We have a few (10-15) layers. However, the shapefiles corresponding to each layer are different for every county. I shall also forward my query in the GeoMoose mailing list. Thanks! ___ 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] Starting with TIGER Line Data and MapServer
Monali Lodha wrote: Thanks Stephen and Dan! @Stephen The recent Tiger Shapefiles come with .prj files and do have a projection. Could there be a different issue then? Mapserver does NOT look at the *.prj file. You have to do that yourself and set the PROJECTION ... END blocks appropriately in mapserver. @Dan Regarding #1 Were all of your shapes in the same projection as the Itasca demo? If not, their coordinates may have been far outside of the extents of the map. Yes, we used the data for Itasca County. SO you need to set the PROJECTION block in the MAP section AND each LAYER needs to have a PROJECTION block. The one in the MAP section defines the output projection to use and the ones in the LAYER define what the source data's projection is (these can be determinged from the *.prj file). Regarding #2 Do you have 300 shapefiles, meaning you have 300 layers you wish to display? If so, you might want to take a look at an alternate solution than the Itasca demo. For example (toots own horn) GeoMOOSE is designed to allow multiple mapfiles to be used within a single application. It makes the management of the large number of layers much more palatable. We also have a number of users that are at the same level of layer management as you are and could give more suggestions on how to best manage that data for use in a Web GIS. No. We have a few (10-15) layers. However, the shapefiles corresponding to each layer are different for every county. I shall also forward my query in the GeoMoose mailing list. Thanks! Typically all county files for a given layer have identical structure in TIGER so you can group them together using a TILEINDEX in the mapfile. -Steve ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
