[Gvsig_english] gvSIG 1.9 patch for managing measured 3D Polylines of Shapefiles

[Francisco José Peñarrubia]

Hi Flavio.

First of all, thanks for the patch.

And now, my question: It seems the patch file doesn't have this 
changes... Is it possible that you sent and old patch? (The old patch is 
already in SVN).

Best regards.

Fran.

Flavio Pompermaier escribió:
> Hi Francisco,
> I discovered these days that the patch for managing 4d shapefiles I 
> sent to you some weeks ago is uncomplete.
> 4D shapefiles are read correctly with that patch, but if I start 
> editing them and then I save them, the shapeWriter do not work as 
> expected.
> The malfunctioning is caused by the fact that when the shapeWriter 
> tries to get the layer type
> the IndexedShpDriver collapse 2d and 4d shapefiles to the same type of 
> layer:
>
>             case (SHP.POLYLINEM):
>                 auxType = auxType | FShape.LINE | FShape.M;
>                 break;
>             case (SHP.POLYLINE2D):
>             case (SHP.POLYLINE3D):
>                 auxType = auxType | FShape.LINE;
>                 break;
>
> while it must be:
>
>            case SHP.POLYLINE2D:
>                 auxType = auxType | FShape.LINE;
>                 break;
>             case SHP.POLYLINEM:
>                 auxType = auxType | FShape.LINE | FShape.M;
>                 break;
>             case SHP.POLYLINE3D:
>                 auxType = auxType | FShape.LINE | FShape.Z;
>                 break;
>
> The new version of the patch of libFMap is attached to the mail.
> Best regards,
> Flavio
>
>
> 2010/2/1 Flavio Pompermaier <fla83tn at libero.it <mailto:fla83tn at libero.it>>
>
>     Hi Francisco,
>     I was thinking nobody read my email..
>     However, I tested the solution against the attached shapefile,
>     which has x,y,z and m dimension (although z is always 0...).
>     I didn't test legends and labelling because by now I use it like a
>     normal 3D shapefile.
>     But if you do it it should be certainly a good idea!
>     Moreover I didn't test non-indexed shapefiles but I don't even
>     know if they exist..and also if they do
>     it seems to me that the code to manage them is always passing
>     through the classes I modified.
>
>     Thanks for keeping me up to date,
>     Flavio
>
>
>     2010/1/29 Francisco José Peñarrubia <fpenarru at gmail.com
>     <mailto:fpenarru at gmail.com>>
>
>         Hi Flavio.
>
>         Sorry about this late response... :-(.
>
>         About the patch, we are going to evaluate it. Please, can you
>         send us
>         some shapefiles to test, and one or two use cases?.
>         We are going to test also some legends, and labelling (just in
>         case you
>         haven't tested it yet).
>
>         Thanks a lot for this collaboration, and keep going, please.
>
>         Fran Peñarrubia.
>         gvSIG Team
>
>         Flavio Pompermaier escribió:
>         > Hi to all,
>         > In the project I' working on I had the need of managing M
>         dimension of
>         > PolylineZ contained in shapefiles
>         > and I had to modify the libFMap and read also M coordinate for
>         > Shape.POLYLINE3D.
>         > The patch is attached to this mail.
>         > I'd like to know whether this patch could be added of
>         interest for a
>         > cumulative further patch of gvSIG 1.9.
>         >
>         >
>         -------------------------------------------------------------------------------------------------------------------------------------------------------
>         >  Brief summary:
>         >
>         -------------------------------------------------------------------------------------------------------------------------------------------------------
>         > - Class ShapeZMFactory proxies the creation of Z-geometries
>         with four
>         > coordinates. By now only polylines
>         > are managed but, if somedays there will be the need of
>         managing also
>         > Zpoints, Zmultipoints and Zpolygons
>         > with four dimension, you can always implement method for their
>         > creation in the aforementioned class.
>         >
>         > - Class FPolyline3DM extends FPolyline3D in order to manage m
>         > dimension of PolylineZ shapes
>         >
>         > - Class IndexedShpDriver instead manage the reading of m
>         coordinate
>         > from shapefiles..
>         >
>         --------------------------------------------------------------------------------------------------------------------------------------------------------
>         >
>         > If anyone knows if I've forgotten to touch other classes in
>         order to
>         > make my patch complete is pleased to let
>         > me know about it.
>         >
>         > Best regards,
>         > Flavio Pompermaier
>         >
>         >
>         ------------------------------------------------------------------------
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