Opened 18 years ago
Closed 17 years ago
#1844 closed defect (fixed)
[SLD] raster class names based on the ColorMapEntry
Reported by: | assefa | Owned by: | assefa |
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Priority: | high | Milestone: | |
Component: | WMS Server | Version: | unspecified |
Severity: | normal | Keywords: | |
Cc: |
Description
e-mail discussion the the subject Hi There, > > We could maybe use the label element in the ColorMapEntry > if available and if not use the quantity value or the > exprsssion to set the class name. In this case, the Rule > Name value would not affect the classes created based on a > raster symbolizer. Is this acceptable ? > > Later, > > > Kralidis,Tom [Burlington] wrote: >> > >> > Sorry, meant one ColorMap per Rule :) >> > >> > -----Original Message----- >> > From: UMN MapServer Users List on behalf of > Kralidis,Tom [Burlington] >> > Sent: Sat 22-Jul-06 11:01 >> > To: MAPSERVER-USERS@LISTS.UMN.EDU >> > Cc: >> > Subject: Re: [UMN_MAPSERVER-USERS] MapServer SLD > RasterSymbolizer >> > >> > >> > >> > >> > The OGC:SLD 1.0.0 schema allows for one ColorMap > element with 0 or more ColorMapEntry elements. >> > >> > MapServer typically picks up Rule/Name and applies them > as a legend title. For rasters, because of the way the > schema is defined, I think MapServer should be picking up > ColorMapEntry/@label when doing raster legends, but then what > happens when someone creates a Rule/Name value earlier? >> > >> > ..Tom >> > >> > >> > >> > -----Original Message----- >> > From: UMN MapServer Users List on behalf of Van > Ulden, Joost >> > Sent: Fri 21-Jul-06 18:57 >> > To: MAPSERVER-USERS@lists.umn.edu >> > Cc: >> > Subject: [UMN_MAPSERVER-USERS] MapServer SLD > RasterSymbolizer >> > >> > >> > >> > Hi all, >> > >> > I am unsure how the raster symbolizer is > supposed to work in MapServer. Do I create one Rule in the > SLD with one ColorMap that has one or more ColorMapEntries? > Or can I create a rule for each ColorMapEntry? Either way > works (works using a filter too!!!) but ColorMapEntries can't > be given a name. It is preferable from my point of view to > create a rule for each ColorMapEntry so that a decent legend > can be generated. >> > >> > Thoughts anyone? >> > >> > Joost >> > >> > >> >
Change History (4)
comment:1 by , 18 years ago
Owner: | changed from | to
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Summary: | [SLD] raster class names based on the ColorMapEntry → [SLD] raster class names based on the ColorMapEntry |
comment:2 by , 18 years ago
I have update the cvs head (mapogcsld.c) as per comments in the bug. If statisfactory please close the bug.
comment:3 by , 17 years ago
mapserver 4.10 is now using the label atrribute from ColorMapEntry as class name, but not yet correctly: all labels are shifted one class down, the highest class gets named "unknown". propose patch (works for me): file mapogcsld.c function msSLDParseRasterSymbolizer() old: char *pszLabel = NULL; new: char *pszLabel = NULL, *pszPreviousLabel = NULL; old: psLayer->class[nClassId].name = strdup(pszLabel); new: psLayer->class[nClassId].name = strdup(pszPreviousLabel); old: pszPreviousColor = pszColor; pszPreviousQuality = pszQuantity; new pszPreviousColor = pszColor; pszPreviousQuality = pszQuantity; pszPreviousLabel = pszLabel; and below comment: /* do the last Color Map Entry */ after line nClassId = psLayer->numclasses-1; add: if (pszLabel) psLayer->class[nClassId].name = strdup(pszLabel); else psLayer->class[nClassId].name = strdup(pszQuantity);
comment:4 by , 17 years ago
Resolution: | → fixed |
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Status: | new → closed |
Thanks Anne. Corrected in mapserver head version.
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