[mapserver-users] Applying a hatch over a line layer

[Adrian Popa]

...Or, to be more clear, I would like to give my lines a "striped" look 
-  I don't know if there's an easier way to do it than using a symbol...

Thanks.


Adrian Popa wrote:
> Hello Thomas,
>
> Thank you for your reply. I tried your solution and it draws a dashed 
> line paralel to my feature (on each side because the symbol is 
> thicker). This is nice, but I was wondering if it's possible to draw 
> the lines at an angle relative to my feature, thus created the "hatch" 
> effect.
>
> If this is not possible with a simple symbol - would it be possible 
> with a graphical symbol (picture)? And if yes, should I expect a high 
> performance penalty?
>
> Thanks again,
> Adrian
>
> Thomas Bonfort wrote:
>> hi,
>>
>> hatches only apply to polygon layers.
>>
>> what you are probably looking for is the PATTERN keyword:
>>
>> symbol
>>   type simple
>>   pattern 2 2 end
>>   name "dashes"
>> end
>>
>>
>> regards,
>> thomas
>>
>> www.camptocamp.com
>> +33 4 79 26 57 97
>>
>>
>>
>> On Mon, Jul 27, 2009 at 11:37, Adrian Popa<adrian_gh.popa at romtelecom.ro> wrote:
>>   
>>> Hello,
>>>
>>> I'm trying to apply a hatch over a line segment, but it doesn't seem to
>>> work.
>>> My symbol definition is:
>>>
>>> SYMBOL              NAME 'hatch'
>>>    TYPE HATCH  END
>>> My layer definition is:
>>> LAYER
>>>   TYPE LINE
>>>   ...
>>>   CLASS
>>>      NAME "Test"
>>>      EXPRESSION ( "[flag]" eq "1")
>>>      STYLE                                     SYMBOL 'hatch'
>>>           ANGLE 45                               SIZE 3 #spacing between
>>> lines
>>>           WIDTH 4 #width of each line           color "#000000"
>>>       END                                   style
>>>         color "#fff94d"                       width 2
>>>         antialias true                       end
>>>   END
>>> END
>>>
>>> The behavior is the following: mapserver draws the lines using the second
>>> style (a yellowish color), but doesn't draw a hatch over my line.
>>>
>>> I've tried with the hatch symbol after the style definition, but it still
>>> doesn't work.  The hatch worked for POLYGON layers just fine.
>>>
>>> Is there any way I can use it for LINE data?
>>>
>>> Thanks,
>>> Adrian
>>>
>>> P.S. I'm using mapserver 5.4.1
>>>
>>>
>>> _______________________________________________
>>> mapserver-users mailing list
>>> mapserver-users at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>>
>>>     
>>
>>   
>

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