[mapserver-users] RE: gradient display of raster DEM data
I struggled with this too on v5.6. After a recent post, I found this link: http://mapserver.org/development/rfc/ms-rfc-6.html It shows how COLORRANGE, DATARANGE, and RANGEITEM can be used to apply a gradient. It works OK on 5.6. I still don't know what RANGEITEM does. kind regards, Sam Skinner ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] Re: gradient display of raster DEM data (John Callahan)
John, I was able to get datarange and classrange to work. However I found a couple issues: 1) I had to include an expression for the raster range. - This may have been fixed in newer versions of MS. 2) I was getting unwanted black areas on my map. - I was using PC256 (to make the image smaller), I had to revert to RGB, which has more colors. Mapserver did not report an error when I was using PC256. CLASS EXPRESSION ([pixel] >= 1030 AND [pixel] < 1133) STYLE COLORRANGE 176 240 232 255 255 179 DATARANGE 1030 1133 END END #class Mark Volz GIS Specialist -Original Message- From: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of mapserver-users-requ...@lists.osgeo.org Sent: Sunday, November 20, 2011 11:00 AM To: mapserver-users@lists.osgeo.org Subject: mapserver-users Digest, Vol 46, Issue 53 Send mapserver-users mailing list submissions to mapserver-users@lists.osgeo.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.osgeo.org/mailman/listinfo/mapserver-users or, via email, send a message with subject or body 'help' to mapserver-users-requ...@lists.osgeo.org You can reach the person managing the list at mapserver-users-ow...@lists.osgeo.org When replying, please edit your Subject line so it is more specific than "Re: Contents of mapserver-users digest..." Today's Topics: 1. Re: gradient display of raster DEM data (John Callahan) -- Message: 1 Date: Sat, 19 Nov 2011 13:51:38 -0500 From: John Callahan Subject: Re: [mapserver-users] gradient display of raster DEM data To: "mapserver-users@lists.osgeo.org" Message-ID: Content-Type: text/plain; charset="iso-8859-1" Thanks again for the idea of using multiple classes but I can't seem to get it to work. Has anyone else had success with this method? It seems as though it's applying only the first defined COLORRANGE to full range of the values in the dataset. I've tried using the below syntax (only COLORRANGE and DATARANGE in each CLASS) as well as the (proposed?) block syntax as defined at http://mapserver.org/development/rfc/ms-rfc-6.html (which gives me errors for RANGEITEM and invalid hex color for MINCOLOR.) I am using MapServer 6.0.1 as part of MSW 3.0.3. Incorrect image being displayed: http://i44.tinypic.com/2hdwuuu.jpg Correct image, created through QGIS: http://i42.tinypic.com/21d2x5h.jpg Here is the LAYER portion of my map file. Is there anything obvious I should change? Thanks for any suggestions. *** LAYER NAME 'de_dem2m' TYPE RASTER DATA 'C:\data\delaware2m.img' PROCESSING "CLOSE_CONNECTION=DEFER" EXTENT 166773.496 49314.974 233217.496 204730.974 METADATA 'ows_title' 'Delaware DEM' INCLUDE "ogc_projections.map" 'wms_include_items' 'all' END STATUS ON DUMP TRUE TRANSPARENCY 100 PROJECTION "init=epsg:26957" END CLASS STYLE COLORRANGE 170 230 209 255 255 179 DATARANGE 0.0 7.0 END END CLASS STYLE COLORRANGE 255 255 179 0 128 64 DATARANGE 7.01 11.0 END END CLASS STYLE COLORRANGE 0 128 64 252 186 3 DATARANGE 11.01 14.0 END END CLASS STYLE COLORRANGE 252 186 3 199 15 2 DATARANGE 14.01 20.0 END END CLASS STYLE COLORRANGE 199 15 2 105 48 13 DATARANGE 20.01 40.0 END END CLASS STYLE COLORRANGE 105 48 13 171 171 171 DATARANGE 40.01 100.0 END END CLASS STYLE COLORRANGE 171 171 171 232 230 232 DATARANGE 100.01 140.0 END END END * - John *** John Callahan, Research Scientist Delaware Geological Survey, University of Delaware URL: http://www.dgs.udel.edu * On Mon, Oct 17, 2011 at 3:05 PM, Smith, Michael ERDC-CRREL-NH < michael.sm...@usace.army.mil> wrote: > John, > > I got a larger color range by using multiple classes > > LAYER > NAME "hillshade" > TYPE raster > TILEINDEX > "/benchmarking/wms/2011/data/raster/DEM/bil_16int/dem_bil16int.shp" > PROCESSING "CLOSE_CONNECTION=DEFER" > PROJECTION >"+init=epsg:4326" > END > CLASS > STYLE > COLORRANGE 46 154 88 251 255 128 > DATARANGE 1003 1800 > END > END > CLASS > STYLE > COLORRANGE 251 255 128 224 108 31 > DATARANGE 1800 2800 > END > END > CLASS > STYLE > COLORRANGE 224 108 31 200 55 55 > DATARANGE2800 3500 > END > END > CLASS > STYLE > COLORRANGE 200 55 55 215 244 244 > DATARANGE 3500 4397 > END > END > END > > > From: John Callahan > Date: Mon, 17 Oct 2011 14:54:13 -0400 > To: "mapserver-users@lists.osgeo.org" > Subject: Re: [mapserver-users] gra
Re: [mapserver-users] Re: gradient display of raster DEM data (John Callahan)
On Nov 21, 2011, at 8:09 AM, Mark Volz wrote: > John, > > I was able to get datarange and classrange to work. However I found a couple > issues: > > 1) I had to include an expression for the raster range. - This may have been > fixed in newer versions of MS. At least with ms 6.0.1 I didn't have to use any expression directive. Just colorrange and datarange did the trick. > 2) I was getting unwanted black areas on my map. - I was using PC256 (to > make the image smaller), I had to revert to RGB, which has more colors. > Mapserver did not report an error when I was using PC256. > > > > CLASS > EXPRESSION ([pixel] >= 1030 AND [pixel] < 1133) > STYLE > COLORRANGE 176 240 232 255 255 179 > DATARANGE 1030 1133 > END > END #class > > > > Mark Volz > GIS Specialist ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Re: gradient display of raster DEM data (John Callahan)
Thanks guys. Adding an EXPRESSION for each class worked great. When using only one class, the EXPRESSION was not necessary. I'm using RGB and everything looks great. Any thoughts about the Legend Graphic? I saw some brief discussions on the doc page. - John On Mon, Nov 21, 2011 at 9:09 AM, Mark Volz wrote: > John, > > I was able to get datarange and classrange to work. However I found a > couple issues: > > 1) I had to include an expression for the raster range. - This may have > been fixed in newer versions of MS. > 2) I was getting unwanted black areas on my map. - I was using PC256 (to > make the image smaller), I had to revert to RGB, which has more colors. > Mapserver did not report an error when I was using PC256. > > > > CLASS >EXPRESSION ([pixel] >= 1030 AND [pixel] < 1133) >STYLE >COLORRANGE 176 240 232 255 255 179 >DATARANGE 1030 1133 >END > END #class > > > > Mark Volz > GIS Specialist > > -Original Message- > From: mapserver-users-boun...@lists.osgeo.org [mailto: > mapserver-users-boun...@lists.osgeo.org] On Behalf Of > mapserver-users-requ...@lists.osgeo.org > Sent: Sunday, November 20, 2011 11:00 AM > To: mapserver-users@lists.osgeo.org > Subject: mapserver-users Digest, Vol 46, Issue 53 > > Send mapserver-users mailing list submissions to >mapserver-users@lists.osgeo.org > > To subscribe or unsubscribe via the World Wide Web, visit >http://lists.osgeo.org/mailman/listinfo/mapserver-users > or, via email, send a message with subject or body 'help' to >mapserver-users-requ...@lists.osgeo.org > > You can reach the person managing the list at >mapserver-users-ow...@lists.osgeo.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of mapserver-users digest..." > > > Today's Topics: > > 1. Re: gradient display of raster DEM data (John Callahan) > > > -- > > Message: 1 > Date: Sat, 19 Nov 2011 13:51:38 -0500 > From: John Callahan > Subject: Re: [mapserver-users] gradient display of raster DEM data > To: "mapserver-users@lists.osgeo.org" > > Message-ID: > > > Content-Type: text/plain; charset="iso-8859-1" > > Thanks again for the idea of using multiple classes but I can't seem to get > it to work. Has anyone else had success with this method? It seems as > though it's applying only the first defined COLORRANGE to full range of the > values in the dataset. > > I've tried using the below syntax (only COLORRANGE and DATARANGE in each > CLASS) as well as the (proposed?) block syntax as defined at > http://mapserver.org/development/rfc/ms-rfc-6.html (which gives me errors > for RANGEITEM and invalid hex color for MINCOLOR.) > > I am using MapServer 6.0.1 as part of MSW 3.0.3. > > Incorrect image being displayed: http://i44.tinypic.com/2hdwuuu.jpg > > Correct image, created through QGIS: http://i42.tinypic.com/21d2x5h.jpg > > > Here is the LAYER portion of my map file. Is there anything obvious I > should change? Thanks for any suggestions. > > *** > LAYER >NAME 'de_dem2m' >TYPE RASTER >DATA 'C:\data\delaware2m.img' > PROCESSING "CLOSE_CONNECTION=DEFER" > EXTENT 166773.496 49314.974 233217.496 204730.974 >METADATA > 'ows_title' 'Delaware DEM' > INCLUDE "ogc_projections.map" > 'wms_include_items' 'all' >END >STATUS ON > DUMP TRUE >TRANSPARENCY 100 >PROJECTION > "init=epsg:26957" >END > > CLASS > STYLE > COLORRANGE 170 230 209 255 255 179 > DATARANGE 0.0 7.0 > END > END > > CLASS > STYLE > COLORRANGE 255 255 179 0 128 64 > DATARANGE 7.01 11.0 > END > END > > CLASS > STYLE > COLORRANGE 0 128 64 252 186 3 > DATARANGE 11.01 14.0 > END > END > > CLASS > STYLE > COLORRANGE 252 186 3 199 15 2 > DATARANGE 14.01 20.0 > END > END > CLASS > STYLE > COLORRANGE 199 15 2 105 48 13 > DATARANGE 20.01 40.0 > END > END > > CLASS > STYLE > COLORRANGE 105 48 13 171 171 171 > DATARANGE 40.01 100.0 > END > END > > CLASS > STYLE > COLORRANGE 171 171 171 232 230 232 > DATARANGE 100.01 140.0 > END > END > > END > * > > - John > > *** > John Callahan, Research Scientist > Delaware Geological Survey, University of Delaware > URL: http://www.dgs.udel.edu > * > > > > On Mon, Oct 17, 2011 at 3:05 PM, Smith, Michael ERDC-CRREL-NH < > michael.sm...@usace.army.mil> wrote: > > > John, > > > > I got a larger color range by using multiple classes > > > > LAYER > > NAME "hillshade" > > TYPE raster > > TILEINDEX > > "/benchmarking/wms/2011/data/raster/DEM/bil_16int/dem_bil16int.shp" > > PROCESSING "CLOSE_CONNECTION=DEFER" > > PROJECTION > >"+init=epsg:4326" > > END > > CLASS > > STYLE > >
