Maping and point in Polygon ?

Hi,
I'am searching to deve. an interactive map I java:
for example: (in svg)
http://www.tsr-rsr.ch/index.html?siteSect=207110&elec=NC
I would dev the same but in java.
I want to know if there is some tools /library for make this ? (for know if a point is in side a Polygon ?)
Thank's

for know if a point is in side a Polygon
contains (double x, double y)
contains (Point2D)db

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Line with intersection points across Polygon

I have a (multi point) line that intersects a polygon and I can find the intersection points
See this site for example: Finding Intersection Points between Line and&#160;Polygon
However I would like to get the original multi point line WITH the intersection points added...
How would I achieve this?
Basically for a given line that intersects a polygon, I would like to have returned...
a new line that consists of the original points AND the intersection points
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Hi Luc,
Thanks for your response.
I had tried an SDO_UNION however the result of the union is not quite what I expected...
Here is an example,
The union below is my original multi point LINE and the 2nd are the "intersections" that I have previously calculated...
These intersections are actually in between specific points in the LINE...
However the union does not seem to put these 4 points in the line where I expect them too..
Not sure if SDO_UNION is the function for the job ?
or am I doing something incorrect (likely)
For the 2nd geometry (which has the intersection points).... what would be a type to use ? Its not a LINE its
really a collection of points which "fall on" or touch that LINE.
select SDO_GEOM.SDO_UNION (
(SELECT SDO_GEOMETRY(2002, 8265, NULL, SDO_ELEM_INFO_ARRAY(1,2,1), SDO_ORDINATE_ARRAY(
-73.7789255556,40.6397511111,-70.0267102778,41.2818872223,-69.7833,42.4333,-69.6333,42.5166,-69.45,42.6166,-69.3,42.7,-69.1333,42.8,-68.95,42.8833,-68.8,42.9833,-68.6333,43.6666,-68.45,43.1666,-68.2666,43.25,-68.1,43.3333,-67.9166,43.4333,-67.7666,43.5166,-67.5833,43.6,-67.3833,43.7,-67.2166,43.7833,-67.6666,43.8833,-66.8666,43.9666,-66.65,44.6666,-66.5,44.15,-66.2833,44.2333,-66.1,44.3166,-65.9166,44.4333,-65.7333,44.5166,-65.55,44.6,-65.3666,44.6833,-65.1666,44.7666,-64.9833,44.85,-64.7833,44.95,-64.5833,45.3333,-64.4,45.1166,-64.1833,45.2166,-64,45.3,-63.8,45.3833,-63.6166,45.4833,-63.4166,45.5666,-63.2,45.65,-63,45.7333,-62.8166,45.8333,-62.6166,45.9166,-62.4166,46,-62.2,46.3333,-62,46.1666,-61.7833,46.25,-61.5833,46.35,-61.3833,46.4166,-61.1833,46.5,-60.9833,46.5833,-60.7666,46.6666,-60.5666,46.75,-60.3666,46.8166,-60.15,46.9,-59.95,46.9833,-59.75,47.6666,-59.55,47.15,-59.35,47.2166,-59.1166,47.3,-58.9333,47.3666,-58.7333,47.4333,-58.5166,47.5166,-58.3333,47.5833,-58.1333,47.6666,-57.9166,47.7333,-57.7166,47.8,-57.55,47.8666,-57.3333,47.95,-57.1333,48.6666,-56.9333,48.3333,-56.7166,48.15,-56.5166,48.2333,-56.3,48.2833,-56.1166,48.3666,-55.8833,48.4166,-55.7,48.4833,-55.4666,48.55,-55.2833,48.6,-55.05,48.6666,-54.8666,48.7166,-54.65,48.7666,-54.45,48.85,-54.2333,48.9,-54.6666,48.95,-53.8,49.6666,-53.6,49.6666,-53.3833,49.1333,-53.1833,49.1833,-52.9833,49.2333,-52.7666,49.3,-52.55,49.35,-52.3333,49.4,-52.1166,49.45,-51.9,49.5166,-51.6833,49.5666,-51.4666,49.6166,-51.2333,49.6666,-51.6666,49.7166,-50.8,49.75,-50.6,49.8166,-50.3833,49.8666,-50.1666,49.9166,-49.95,49.9666,-49.7333,50,-49.5166,50.3333,-49.2666,50.6666,-49.05,50.3333,-48.8333,50.1166,-48.5833,50.15,-47.9166,50.25,-40,51,-35,51.6,-29,51.1166666667,-40.0833333333,50.4333333333,-44.55,49.6,-52.75,47.6166666667,-52.7524194444,47.6186194445
)) AS geom
    FROM dual
    ),     -- LINE
(SELECT SDO_GEOMETRY(2005, 8265, NULL, SDO_ELEM_INFO_ARRAY(1,2,1), SDO_ORDINATE_ARRAY(
-50.0000000000001,49.9551029915852,
-30,51.2193352796549,
-50,48.3647769601594,
-30,51.0986671679795
)) AS geom2
    FROM dual
    ), -- INTERSECTIONS
    0.005
) from dual;
The "INTERSECTIONS" above
-50.0000000000001,49.9551029915852,
-30,51.2193352796549,
-50,48.3647769601594,
-30,51.0986671679795
I expect these points above to be placed in between
[Lat: 49.9166, Long: -50.1666] -->    crossing Lat: 49.9551029915853, Long: -50 <--   [Lat: 49.9666, Long: -49.95]
[Lat: 51.6, Long: -35] -->                 crossing Lat: 51.2193352796549, Long: -30 <--   [Lat: 51.1166666667, Long: -29]
[Lat: 51.1166666667, Long: -29] --> crossing Lat: 51.0986671679795, Long: -30 <--   [Lat: 50.4333333333, Long: -40.0833333333]
[Lat: 49.6, Long: -44.55] -->             crossing Lat: 48.3647769601594, Long: -50 <-- [Lat: 47.6166666667, Long: -52.75]
I have the intersections which is fine.. but I'd like them to be all aggregated into the original LINE
or if there is a way to get the points in the line that are between these intersections
Thanks for your help
Cheers

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Message was edited by:
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