scalebar-problem with csharp-mapscript
Volkan Ulukut
vulukut at TESCILTURK.COM
Tue Jun 20 02:14:57 EDT 2006
EXTENT and UNITS of your map should match, that might be the reason. If you
gave geoextent and chose meter as units that might be the reason. dd is the
unit for geoextent.
-----Original Message-----
From: tesciltu at host.tescilturk.com [mailto:tesciltu at host.tescilturk.com] On
Behalf Of Christian Wilmes
Sent: Monday, June 19, 2006 7:54 PM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] scalebar-problem with csharp-mapscript
Hi,
now I test it like that and it works:
myMap.scalebar.height = 20;
myMap.scalebar.width = 400;
myMap.scalebar.intervals = 5;
//scalebar.label = labelScalebar;
myMap.scalebar.position = (int)MS_LABEL_POSITIONS.MS_UL;
myMap.scalebar.style = 1; //0 or 1
myMap.scalebar.status = mapscript.MS_EMBED;
myMap.scalebar.units = (int)MS_UNITS.MS_METERS;
But the scalebar itself isn't correct. One Meter in the scalebar is about
1000 meters in the map. What could be the reason for that?
Best Regards
Christian
-------- Original-Nachricht --------
Datum: Mon, 19 Jun 2006 18:41:26 +0200
Von: Christian Wilmes <C.Wilmes at GMX.DE>
An: MAPSERVER-USERS at LISTS.UMN.EDU
Betreff: Re: [UMN_MAPSERVER-USERS] scalebar-problem with csharp-mapscript
> Hi Tamas,
>
> thanks for your quick response. I tried it out, but there are still the
> same exeptions.
>
> My new code:
> scalebarObj scalebar = myMap.scalebar;
> labelObj labelScalebar = scalebar.label;
>
> labelScalebar.size = 12;
> labelScalebar.type = MS_FONT_TYPE.MS_BITMAP;
> labelScalebar.color = new colorObj(255, 0, 255, 0);
>
>
> scalebar.height = pictureBoxScalebar.Height;
> scalebar.width = pictureBoxScalebar.Width;
> scalebar.intervals = 5;
> //scalebar.label = labelScalebar;
> scalebar.position = (int)MS_LABEL_POSITIONS.MS_UL;
> scalebar.style = 0; //0 or 1
> scalebar.status = mapscript.MS_EMBED;
> scalebar.units = (int)MS_UNITS.MS_KILOMETERS;
>
>
> Best Regards
> Christian
>
>
>
> -------- Original-Nachricht --------
> Datum: Mon, 19 Jun 2006 18:08:09 +0200
> Von: Tamas Szekeres <szekerest at GMAIL.COM>
> An: MAPSERVER-USERS at LISTS.UMN.EDU
> Betreff: Re: [UMN_MAPSERVER-USERS] scalebar-problem with csharp-mapscript
>
> > Christian,
> >
> > scalebarObj is added to the map by default and also the labelObj is
> > added to the scalebar so you should use these objects in the following
> > way:
> >
> > scalebarObj scalebar = myMap.scalebar;
> > scalebar.height = pictureBoxScalebar.Height;
> > scalebar.width = pictureBoxScalebar.Width;
> > scalebar.intervals = 5;
> > scalebar.label = labelScalebar;
> > scalebar.position = (int)MS_LABEL_POSITIONS.MS_UL;
> > scalebar.style = 0; //0 or 1
> > scalebar.status = mapscript.MS_EMBED;
> > scalebar.units = (int)MS_UNITS.MS_KILOMETERS;
> > labelObj labelScalebar = scalebar.label;
> > labelScalebar.size = 12;
> > labelScalebar.type = MS_FONT_TYPE.MS_BITMAP;
> > labelScalebar.color = new colorObj(255, 0, 255, 0);
> >
> > This problem is related to the following bug:
> > http://mapserver.gis.umn.edu/bugs/show_bug.cgi?id=1803
> >
> > You should also avoid to use the object members mentioned there as
> > writeable properties.
> >
> > Best Regards,
> >
> > Tamas
> >
> >
> >
> > 2006/6/19, Christian Wilmes <C.Wilmes at gmx.de>:
> > > Hi All,
> > >
> > > if I try to add a scalebar to my map I get exceptions.The code for the
> > scalebar:
> > > labelObj labelScalebar = new labelObj();
> > > labelScalebar.size = 12;
> > > labelScalebar.type = MS_FONT_TYPE.MS_BITMAP;
> > > labelScalebar.color = new colorObj(255, 0, 255, 0);
> > >
> > > scalebarObj scalebar = new scalebarObj();
> > > scalebar.height = pictureBoxScalebar.Height;
> > > scalebar.width = pictureBoxScalebar.Width;
> > > scalebar.intervals = 5;
> > > scalebar.label = labelScalebar;
> > > scalebar.position = (int)MS_LABEL_POSITIONS.MS_UL;
> > > scalebar.style = 0; //0 or 1
> > > scalebar.status = mapscript.MS_EMBED;
> > > scalebar.units = (int)MS_UNITS.MS_KILOMETERS;
> > >
> > > myMap.scalebar = scalebar;
> > >
> > >
> > >
> > >
> > >
> > >
> > > Using myMap.drawScalebar() I get the following exception:
> > > System.ApplicationException was unhandled
> > > Message="msGetBitmapFont(): GD library error. Invalid bitmap font.
> > Must be one of tiny, small, medium, large or giant."
> > > Source="mapscript_csharp"
> > > StackTrace:
> > > at mapObj.drawScalebar()
> > > at GeoDataPipelineViewer.GDPV.RefreshMap() in C:\src\Visual
> > Studio
> 2005\Projects\GeoDataPipelineViewer\GeoDataPipelineViewer\GDPV.cs:line
> > 415
> > > at GeoDataPipelineViewer.GDPV.showMap() in C:\src\Visual Studio
> > 2005\Projects\GeoDataPipelineViewer\GeoDataPipelineViewer\GDPV.cs:line
> 385
> > > at GeoDataPipelineViewer.GDPV..ctor() in C:\src\Visual Studio
> > 2005\Projects\GeoDataPipelineViewer\GeoDataPipelineViewer\GDPV.cs:line
> 45
> > > at GeoDataPipelineViewer.Program.Main() in C:\src\Visual Studio
> >
> 2005\Projects\GeoDataPipelineViewer\GeoDataPipelineViewer\Program.cs:line
19
> > > at System.AppDomain.nExecuteAssembly(Assembly assembly,
> String[]
> > args)
> > > at System.AppDomain.ExecuteAssembly(String assemblyFile,
> Evidence
> > assemblySecurity, String[] args)
> > > at
> > Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
> > > at System.Threading.ThreadHelper.ThreadStart_Context(Object
> > state)
> > > at System.Threading.ExecutionContext.Run(ExecutionContext
> > executionContext, ContextCallback callback, Object state)
> > > at System.Threading.ThreadHelper.ThreadStart()
> > >
> > >
> > >
> > >
> > >
> > >
> > > Using MyMap.draw() I get the following Exception:
> > > System.AccessViolationException was unhandled
> > > Message="Attempted to read or write protected memory. This is often
> an
> > indication that other memory is corrupt."
> > > Source="mapscript_csharp"
> > > StackTrace:
> > > at mapscriptPINVOKE.mapObj_draw(HandleRef jarg1)
> > > at mapObj.draw()
> > > at GeoDataPipelineViewer.GDPV.RefreshMap() in C:\src\Visual
> > Studio
> 2005\Projects\GeoDataPipelineViewer\GeoDataPipelineViewer\GDPV.cs:line
> > 400
> > > at GeoDataPipelineViewer.GDPV.showMap() in C:\src\Visual Studio
> > 2005\Projects\GeoDataPipelineViewer\GeoDataPipelineViewer\GDPV.cs:line
> 385
> > > at GeoDataPipelineViewer.GDPV..ctor() in C:\src\Visual Studio
> > 2005\Projects\GeoDataPipelineViewer\GeoDataPipelineViewer\GDPV.cs:line
> 45
> > > at GeoDataPipelineViewer.Program.Main() in C:\src\Visual Studio
> >
> 2005\Projects\GeoDataPipelineViewer\GeoDataPipelineViewer\Program.cs:line
19
> > > at System.AppDomain.nExecuteAssembly(Assembly assembly,
> String[]
> > args)
> > > at System.AppDomain.ExecuteAssembly(String assemblyFile,
> Evidence
> > assemblySecurity, String[] args)
> > > at
> > Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
> > > at System.Threading.ThreadHelper.ThreadStart_Context(Object
> > state)
> > > at System.Threading.ExecutionContext.Run(ExecutionContext
> > executionContext, ContextCallback callback, Object state)
> > > at System.Threading.ThreadHelper.ThreadStart()
> > >
> > >
> > > I think the problem is the label, like it is described in the first
> > exception but how could I set the bitmap-font, and where can I find a
> enum for
> > that or some constants like MS_MEDIUM?
> > > Or is there just another reason why that doesn't work?
> > >
> > > Best Regards
> > > Christian
> > >
> > >
> > >
> > > --
> > >
> > >
> > > Echte DSL-Flatrate dauerhaft für 0,- Euro*!
> > > "Feel free" mit GMX DSL! http://www.gmx.net/de/go/dsl
> > >
>
> --
>
>
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