How to edit attribute of a selected shape?

[Xiaonan Zhang]

hi, Skalski,

Thanks for the reply. However could you please give more information on
this. Maybe an example.

The code was working partly ok, the new point can be added, however as I
said, it will overwrite the old one. It's attribute was inherited from the
old one. I now want to change it's attribute and when I
use  $poLayer->getResult(0); there seems not point was picked up.

regards,

Jonathan



On 26/01/06, Skalski Artur - askals <Artur.Skalski at acxiom.com> wrote:
>
> To change an attribute of added point You have to also update a dbase file
> (I don't see that in your code) wihich stores all atributes of shapes in
> shp.file, otherwise you get nothing. And if you try to open such a file in
> ArcViwe it will promt taht tha file was damaged which is because dbf. file
> record number doesn't mach shp. file record number.
> dbase.dll which is used to create and update dbf. file comes with standard
> distribution off all lates php binaries
>
> ragards
>
> Artur Skalski
>
> *ACXIOM Polska*
> Telephone:      (+48 22) 606 11 27      Budynek Saturn
> Facsimile:      (+48 22) 606 11 28      Domaniewska 41
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> E-mail:         artur.skalski at acxiom.com
>
> -----Original Message-----
> *From:* UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU]*On
> Behalf Of *Xiaonan Zhang
> *Sent:* Wednesday, January 25, 2006 6:02 PM
> *To:* MAPSERVER-USERS at LISTS.UMN.EDU
> *Subject:* [UMN_MAPSERVER-USERS] How to edit attribute of a selected
> shape?
>
> Dear all,
>
> I am tring to create a function which can add comment point onto layer
> however I got a few problems here:
> 1. the newly added one always overwrite the existing point so there is
> always only one point in that layer.
> 2. I can not regain the added point.
> 3. how to change the attribute of the added point, say there is one
> attribue called "Comment".
>
> thanks.
>
> My code is:
>
> //Create a new comment point
>             $ClickGeo = ms_newPointObj();
>             $ClickGeo->setXY($nClickGeoX, $nClickGeoY);
>
>             //printf("ClickGeoX %f<BR>\n",$nClickGeoX);
>           //printf("ClickGeoY %f<BR>\n",$nClickGeoY);
>
>           //Add it to the comments layer
>           $shape = ms_newShapeObj(MS_SHAPE_POINT);
>           $line = ms_newLineObj();
>           $line->add($oClickGeo);
>           $shape ->add($line);
>
>
>           $poLayer = $gpoMap->getlayerbyname(comments); //get the layer
> "comments"
>           $poLayer->open();
>           //printf("Layer Name: %f<BR>\n", $poLayer->name);
>
>
>           $poLayer-> addfeature($shape); //add the new comment point
>
>
>           //Save the changes
>             $cmmShapefile = "../htdocs/data/comments";
>           $objShapefile = ms_newShapeFileObj( $cmmShapefile, MS_SHP_POINT
> );
>           $objShapefile->addshape($shape);
>           $objShapefile->free;
>            $poLayer->close();
>
>           //Task2: Use layer->querybypoint to regain the newly added point
> and then change it's comment attribut
>
>           //Task2.1:get the new added comment point
>                  $poLayer->querybypoint($oClickGeo, MS_SINGLE, 2);
>                  $numResults = $poLayer->getNumResults();
>                  printf("Find point: %f<BR>\n",
> $numResults);
>                  $oRes = $poLayer->getResult(0);
>                  printf("tileindex: %f<BR>\n", $oRes->tileindex);
>                  printf("SHAPEINDEX: %f<BR>\n",
> $oRes->shapeindex);
>                 $oShape = $poLayer->getShape(-1,0); //(-1,-1)
>                 print_r($oShape->values); //print the keys of the values
> array
>                 $comment = $oShape->Values["Comment"];
>                 printf("The comment attribute is ---: %f<BR>\n",$comment
> ); //display comment attribute
>
>
>
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