This is the code
LAYER
NAME "segnaletica"
STATUS on
TYPE POINT
TRANSFORM false
POSTLABELCACHE true
CONNECTION "user=user password=password dbname=dbname
host=localhost port=5432"
CONNECTIONTYPE postgis
DATA "posizionegeoref from rilievi.impianti"
CLASS
STYLE
COLOR 255 99 0
SYMBOL "circle"
SIZE 100
END
END
PROJECTION
"init=epsg:4326"
END
END
private void zoomIn(mapObj mapObj_o) {
double[] extent = explodeExtent();//retrieve the previous map
extent from the form data
mapObj_o.setExtent(extent[0], extent[1], extent[2],
extent[3]);//assign to the map the previous extent
pointObj pointObj_o_pix = new
pointObj(Integer.parseInt(getMap_x()),Integer.parseInt(getMap_y()),
0);//create a pixel-based point for the user //click
rectObj rectObj_o = new rectObj(extent[0], extent[1], extent[2],
extent[3],
mapscript.MS_FALSE);//create a rectangle based on the
previous extent
mapObj_o.zoomPoint(2, pointObj_o_pix, WIDTH, HEIGHT, rectObj_o,
null);//zoom in the map; WIDTH=600 pixel, HEIGHT=400 pixel
draw(mapObj_o);
}
private void draw(mapObj mapObj_o){
imageObj mapImageObj;
String imageName = getImageName();
String imagePath = IMAGE_URL + imageName;
mapImageObj = mapObj_o.draw();
mapImageObj.save(imagePath, mapObj_o);
setMappa("/map/" + imageName);
setCurrent_extent(String.valueOf(mapObj_o.getExtent().getMinx()) + " " +
String.valueOf(mapObj_o.getExtent().getMiny()) + " " +
String.valueOf(mapObj_o.getExtent().getMaxx()) + " " +
String.valueOf(mapObj_o.getExtent().getMaxy()));//set the actual extent
in a hidden input element of the form
}
I've tried also
private void draw(mapObj mapObj_o){
toggleLayer(mapObj_o);
imageObj mapImageObj;
String imageName = getImageName();
String imagePath = IMAGE_URL + imageName;
mapObj_o.setSize(WIDTH, HEIGHT);
mapImageObj = mapObj_o.draw();
mapImageObj.save(imagePath, mapObj_o);
setMappa("/map/" + imageName);
setCurrent_extent(String.valueOf(mapObj_o.getExtent().getMinx()) + " " +
String.valueOf(mapObj_o.getExtent().getMiny()) + " " +
String.valueOf(mapObj_o.getExtent().getMaxx()) + " " +
String.valueOf(mapObj_o.getExtent().getMaxy()));
}
Umberto Nicoletti ha scritto:
On Sun, Sep 28, 2008 at 11:45 AM, Ludovico Bianchini <[EMAIL PROTECTED]> wrote:
- Windows Vista Home Premium
- Postgres 8.1
- jvm 1.6.0
- jboss 4.0.3SP1, tomcat 5.5
- struts2
- ms4w 2.3.0 (mapscript.jar, mapscript.dll, all other dlls taken from this
pack)
- postgresql-8.2-505.jdbc4.jar
The query created to extract postgis layer is of the type
SELECT asbinary(force_collection(force_2d(posizionegeoref)),'NDR') from
rilievi.impianti where posizionegeoref && setSRID('BOX3D(0 0,599
399)'::BOX3D, find_srid('','rilievi.impianti','posizionegeoref') );
The BOX3D filter is created using pixel map's limits...( BOX3D(0 0,599 399)
) why this?
I use setExtent() before draw(), all navigation operations work fine, why is
the query build against the pixel
dimensions of the resulting image and not against the real dimensions
calculated for the rectangle?
do you call setExtent before querying and convert image units into map units?
Perhaps I am missing some basic instructions, but I don't know what...
Thanks in advance for any suggestions.
Ludovico
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