scalebar-problem with csharp-mapscript
Christian Wilmes
C.Wilmes at GMX.DE
Mon Jun 19 12:54:21 EDT 2006
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
> > >
>
> --
>
>
> Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen!
> Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer
--
Echte DSL-Flatrate dauerhaft für 0,- Euro*!
"Feel free" mit GMX DSL! http://www.gmx.net/de/go/dsl
More information about the mapserver-users
mailing list