[gdal-dev] Reading OGRStyle information using C++

[Chaitanya kumar CH]

Aneesh,

I don't know if the DXF format maintains a default style or a style table
but OGR's DXF driver doesn't support layer's style table.

On Thu, Jan 5, 2012 at 5:30 PM, Aneesh Muralidharan <symonando at gmail.com>wrote:

> Hi Chaithanya,
>
> Thanks for the quick reply
>
> About the style table, I did try to use the layer style table, but I'm
> getting an empty table :(
>
> By the way I'm trying to read a simple DXF file.
>
> On Thu, Jan 5, 2012 at 4:57 PM, Chaitanya kumar CH <chaitanya.ch at gmail.com
> > wrote:
>
>> A layer's style table can be accessed using OGRLayer::GetStyleTable() [1].
>>
>> [1]: http://www.gdal.org/ogr/classOGRLayer.html
>>
>>
>> On Thu, Jan 5, 2012 at 4:55 PM, Chaitanya kumar CH <
>> chaitanya.ch at gmail.com> wrote:
>>
>>> Aneesh,
>>>
>>> A layer can have a style table that stores a set of styles that can be
>>> referred by individual features. Usually the style table has a default
>>> style.
>>>
>>> Its usage is explained in the same page as the OGR Feature Style
>>> Specification.
>>>
>>> On Thu, Jan 5, 2012 at 3:45 PM, Aneesh Muralidharan <symonando at gmail.com
>>> > wrote:
>>>
>>>> Hi,
>>>>
>>>> I'm new to OGR/GDAL and I'm trying to read style information of vectors
>>>> using the OGR C++ API. I followed the documentation available here
>>>> http://www.gdal.org/ogr/ogr_feature_style.html. I have managed to get
>>>> the pen information of the glyphs' in vector file successfully.
>>>>
>>>> The problem is that, it is unclear that from where can I figure out the
>>>> layer style specification. i.e the global style for the layer ( assuming
>>>> each glyph's pen can be either one of its own or dependent on the layer ).
>>>> The OGRFeatureDefn for the OGRLayer doesn't seem to have this information.
>>>>
>>>> Also is there any detailed explanation of the API somewhere with some
>>>> sample code snippets ? (for the feature-style api. For read/write I know
>>>> there is http://www.gdal.org/ogr/ogr_apitut.html)
>>>>
>>>> Hoping for a quick response
>>>>
>>>> Thanks and regards,
>>>> Aneesh Muralidharan
>>>>
>>>> _______________________________________________
>>>> gdal-dev mailing list
>>>> gdal-dev at lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>>>>
>>>
>>>
>>>
>>> --
>>> Best regards,
>>> Chaitanya kumar CH.
>>>
>>> +91-9494447584
>>> 17.2416N 80.1426E
>>>
>>
>>
>>
>> --
>> Best regards,
>> Chaitanya kumar CH.
>>
>> +91-9494447584
>> 17.2416N 80.1426E
>>
>
>


-- 
Best regards,
Chaitanya kumar CH.

+91-9494447584
17.2416N 80.1426E
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