[Mapserver-dev] SWF output -> FORMATOPTION "OUTPUT_MOVIE=SINGLE" broken?

[Steve Spicklemire]

Hi Yewondwossen,

Thanks for the detailed reply..

On Jun 16, 2004, at 1:04 PM, Yewondwossen Assefa wrote:

> I have checked the code to see what would be the problem. Here is the 
> situation :
>   - when rederning in OUPUT_MOVIE = 'SINGLE' mode, all the drawing 
> passes through the GD functions : basically every thing is drawn in a 
> temporary GD image as if you had specified a GD format (like PNG, GIF 
> ...).  At the end this GD image is converted and inserted inside the 
> movie.

You mean ... as in a bitmap? That seems kinda strange..

>
>   - when rendering in mode MULTIPLE, you get vector output and all the 
> code is handled through the swf driver.
>
>  As for the fonts, the problem you probably have is that your classes 
> refer to an FDB font that is handled properly in the vector case 
> (MULTIPLE)  but can not work in the raster case (SINGLE), since GD 
> which is used to draw the text does not understand the FDB font.
>
>  Quick solution to your problem: if you use your mapfile in SINGLE 
> mode, use true type fonts in your classes. If you want vector output 
> using the MULTIPLE mode, use the FDB fonts.

Hmm.. OK.. I'll try that.

>
>  The real solution would be for ming (which is the library used to 
> generate the swf files), to support True Type fonts.
>
>  I am also checking to see if there can be a small hack that can be 
> introduced inside the mapserver swf code to correct this problem.
>
>  I have enetered a bug in mapserver (Bug 733) 
> http://mapserver.gis.umn.edu/bugs/show_bug.cgi?id=733 to follow up on 
> this.
>

Is there any reason why the SINGLE mode can't draw just like the 
multiple mode, but just into a single .swf? I'll dig some more...

thanks for the input!
-steve

> Later,
>
> Steve Spicklemire wrote:
>
>> Hi Folks,
>> I'm trying to track down a apparent bug in rendering labels in SWF 
>> output when OUPUT_MOVIE is 'SINGLE'.
>> The code is a bit confusing to me (no doubt primarily due to the fact 
>> that I don't understand why it's doing things the way it is!). It 
>> appears that this bit of code in mapswf.c/msDrawLabelCacheSWF is not 
>> working:
>> /* 
>> -------------------------------------------------------------------- 
>> */
>> /*      if the output is single (SWF file based on one raster that    
>>   */
>> /*      will contain all  the rendering), draw the lables using the   
>>   */
>> /*      GD driver.                                                    
>>   */
>> /* 
>> -------------------------------------------------------------------- 
>> */
>>     if(strcasecmp(msGetOutputFormatOption(image->format,
>>                                           "OUTPUT_MOVIE",""),
>>                   "SINGLE") == 0)
>>     {
>>         imagetmp = (imageObj *)image->img.swf->imagetmp;
>>         msImageInitGD( imagetmp, &map->imagecolor);
>>         msDrawLabelCacheGD(imagetmp->img.gd, map);
>>         oShape = gdImage2Shape(imagetmp->img.gd);
>>         //nTmp = image->img.swf->nCurrentMovie;
>>         SWFMovie_add(GetCurrentMovie(map, image), oShape);
>>         return 0;
>>     }
>> I don't know enough about the GD methods to tell for sure what's 
>> going on. When in MULTIPLE mode I get nice vector fonts drawn on each 
>> layer with labels. WHen in SINGLE I see no text anywhere. ;-(
>> I've had reasonable success sorting out bugs in mapswf.c before.. but 
>> this one has me (momentarily) stumped!
>> Any thoughts about how to track this one down would be appreciated.
>> BTW... I'm pretty sure this actually *worked* at some point... wierd.
>> thanks!
>> -steve
>> _______________________________________________
>> Mapserver-dev mailing list
>> Mapserver-dev at lists.gis.umn.edu
>> http://lists.gis.umn.edu/mailman/listinfo/mapserver-dev
>
>
> -- 
> ----------------------------------------------------------------
> Assefa Yewondwossen
> Software Analyst
>
> Email: assefa at dmsolutions.ca
> http://www.dmsolutions.ca/
>
> Phone: (613) 565-5056 (ext 14)
> Fax:   (613) 565-0925
> ----------------------------------------------------------------
>
>
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