Re: [OpenMap Users] obtain shape from oMGeometry

From: Kevin Grunenberg <KGrunenberg_at_asascience.com>
Date: Tue, 26 Jul 2011 12:30:46 -0400

I donšt know if this will work cause I haven't tried it just put it
together based on the API. There is probably a better way to do it but
this is what I came up with, maybe another member on the board knows a
better way.

Point2D p1;
        OMGeometryList oMGeometryList = new OMGeometryList();
        for (int x = 0; x < oMGeometryList.size(); x++) {

        //I am not sure this cast will work
        OMPoly poly = (OMPoly) oMGeometryList.get(x);

        for (int g = 0; g < poly.getLatLonArray().length; g++) {
                Double x,y
                y= ProjMath.radToDeg(poly.getLatLonArray()[g]);

                x= ProjMath.radToDeg(poly.getLatLonArray()[g+1]);

                p1 = new Point2D.Double(x,y);
                g++;
        }
}




It could obviously use to be optimized

-Good Luck
-- Kevin


On 7/26/11 10:55 AM, "Schumann B." <Benjamin.Schumann_at_soton.ac.uk> wrote:

>Any idea how to achieve it with OpenMap?
>I mean, it must be possible to simply read out lat/lon of all points of a
>shp-file in OpenMap. But I simply cannot figure it out.
>
>Thanks for your help (seriously, I do appreciate your efforts).
>
>Benjamin Schumann
>
>> -----Original Message-----
>> From: Kevin Grunenberg [mailto:KGrunenberg_at_asascience.com]
>> Sent: 26 July 2011 16:34
>> To: Schumann B.
>> Subject: Re: [OpenMap Users] obtain shape from oMGeometry
>>
>> Ben
>>
>> Sorry about that I based that off a class that uses the geotools
>>library to
>> read a shp file not the opemap library.
>>
>>
>>
>> -- Kevin Grunenberg | Programmer
>> Applied Science Associates
>> 55 Village Square Drive
>> South Kingstown, RI 02879
>> p: 401-789-6224 | f: 401-789-1932
>>
>>
>>
>>
>>
>> On 7/26/11 10:03 AM, "Schumann B." <Benjamin.Schumann_at_soton.ac.uk>
>> wrote:
>>
>> >Hi,
>> >Thanks for the quick answer.
>> >I cannot create a class "Geometry". If I replace it by "OMGemoetry", I
>> >cannot obtain your methods "get(x)", "getNumGeometries" and so on.
>> >Do I need a special .jar or where can I get the class "Geometry"
>> >cheers
>> >Ben
>> >
>> >> -----Original Message-----
>> >> From: Kevin Grunenberg [mailto:KGrunenberg_at_asascience.com]
>> >> Sent: 26 July 2011 15:42
>> >> To: openmap-users_at_bbn.com
>> >> Cc: Schumann B.
>> >> Subject: Re: [OpenMap Users] obtain shape from oMGeometry
>> >>
>> >> Benjamin,
>> >>
>> >> You could try something like this
>> >>
>> >> Point2D p1;
>> >> for (int x = 0; x < oMGeometryList.size(); x++) {
>> >>
>> >> Geometry geometry = (Geometry) oMGeometryList.get(x);
>> >> /**
>> >> * The Extra level of looping is to deal with multi polygons
>> >> * If the geometry is a multi-polygon then the coordinate list is
>> >> ALL coordinates
>> >> * and they would be connected
>> >> */
>> >> for (int g = 0; g < geometry.getNumGeometries(); g++) {
>> >> Geometry geo = geometry.getGeometryN(g);
>> >> Coordinate[] coords = geo.getCoordinates();
>> >> for (int i = 0; i < coords.length; i++) {
>> >> p1 = new Point2D.Double(coords[i].x,
>> coords[i].y);
>> >> }
>> >> }
>> >> }
>> >>
>> >>
>> >>
>> >> I hope this helps
>> >>
>> >> -- Kevin
>> >>
>> >>
>> >>
>> >>
>> >> On 7/26/11 9:13 AM, "Schumann B." <Benjamin.Schumann_at_soton.ac.uk>
>> >> wrote:
>> >>
>> >> >Hi,
>> >> >In addition to the path described inmy previous question, I also try
>> >> >to follow this path:
>> >> >
>> >> >1: Access all layers from the map in use:
>> >> > Layers = myGisMap.getLayers();
>> >> >2: find the political area at the center of the myGisMap:
>> >> > politicalArea =
>> >> >layers[0].findPoliticalArea(map.getCenterLongitude(),
>> >> >map.getCenterLatitude());
>> >> >3: get a OMGeometryList
>> >> > oMGeometryList = politicalArea.getGeometry();
>> >> >4: get a geometry
>> >> > oMGeometry = oMGeometryList.getAt(0);
>> >> >
>> >> >I do get a geometry and when I run
>> >> >"traceln(oMGeometryList.getDescription());" I find something like
>> >> >
>> >> >"OMGraphicList with 95 OMGraphics
>> >> >|--> OMGraphicList with 1 OMGraphic
>> >> > |--> OMPoly
>> >> >
>> >> >|--> OMGraphicList with 1 OMGraphic
>> >> > |--> OMPoly "
>> >> >
>> >> >This list is actually much longer, showing 95 OMGraphics with 153
>> >> >OMPolys. So there appears to be something in the oMGeometryList.
>> >> >However, when I want to extract an OMGeometry from it using
>> >> >"oMGeometry = oMGeometryList.getAt(0);" this oMGeomtry-object has
>> NULL-attributes.
>> >> >
>> >> >Also, in the API. It says about OMGeometry that "geometry classes
>> >> >are intended to pull the object location data out of the
>> >> >OMGraphics.". This is what I want, but how?
>> >> >
>> >> >In principle, I just want to query the shp-file if a certain lat/lon
>> >> >is within any shapes/features etc.
>> >> >
>> >> >Again, I am very interested in any pointers, thanks a lot in advance
>> >> >cheers
>> >> >
>> >> >Benjamin Schumann
>> >> >Tel.: 00493091149702
>> >> >Mobil: 004915776816125
>> >> >Institute for Complex Systems Simulation & Computational Engineering
>> >> >Design Group School of Engineering Sciences University of
>> >> >Southampton
>> >> >(UK) Postal Address:
>> >> >Damerowstrasse 43c
>> >> >13187 Berlin
>> >> >Germany
>> >> >
>> >> >
>> >> >--
>> >> >[To unsubscribe to this list send an email to "majdart_at_bbn.com"
>> >> >with the following text in the BODY of the message "unsubscribe
>> >> >openmap-users"]
>> >
>

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Received on Tue Jul 26 2011 - 12:32:04 EDT

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