How do I split or explode polygons in Oracle Spatial?

OK So SDO_AGGR_UNION is the function that merges lots of polygons into one multipart polygon. But is there a way to seperate a multipart polygon into its parts?
I have merged all the polygons that match an attribute, and this works well using SDO_AGGR_UNION. I now want to seperate into seperate geographic area. Splitting one multipart polygon into several single part polygon.
Any Ideas?
Thanks in advance
Glenn

Hi,
SDO_UTIL.EXTRACT
SDO_UTIL.GETNUMELEM
details in spatial documentation
and You should read following article.
http://www.spatialdbadvisor.com/oracle_spatial_tips_tricks/87/how-to-extract-elements-from-the-result-of-an-sdo_intersection-of-two-polygons
Regards,
Tomek

Similar Messages

Extrude 3D polygons in Oracle spatial

Dear Everyone,
I have two data sets of the city footprints imported in the Oracle Spatial already. One is a 2D polygon layer with only x and y, and the other is a 3D polygon layer with z values (the x and y are identical to the first one).
Now I am trying to extrude the 3D polygon to 3D composites based on the z value. I can successfully extrude the 2D polygons with specifying the ground heights (say sdo_ordinate_array(0)) and topheights (say, sdo_ordinate_array(20.0)).
However, how to extrude the 3D polygon taking each vertex's z value as the ground heights to an specified top heights is a problem for me. Since, I am very new to use PL/SQL, besides, I am not sure if it is possible to do this.
Here is the sample data extracted from the sample data:
select sample.geom.sdo_ordinates from sample2d_polygon sample
NUMBER(715202.739577727,733492.909091357,715206.759608945,733492.412077086,715208.666575034,733506.889047512,715204.72752625,733507.364066093,715202.739577727,733492.909091357)
select sample.geom.sdo_ordinates from sample3d_polygon sample
NUMBER(715202.739577727,733492.909091357,12.4890003204346,715206.759608945,733492.412077086,12.4890003204346,715208.666575034,733506.889047512,12.4540004730225,715204.72752625,733507.364066093,12.4320001602173,715202.739577727,733492.909091357,12.4890003204346)
Can anybody help me about this
select sdo_util.extrude(sample.geom, sdo_ordinate_array(), sdo_ordinate_array(20.0), 'true', 0.05) from sample2d_polygon sample, where the first sdo_ordinate_array is the array of corresponding vertex's z value?
Any suggestions is anticipated and highly appreciated.
Sincerely
Jun

Hi Jun,-
I hope the following code solves your problem.
Please also make sure your geometries are valid using sdo_geom.validate_geometry_with_context or
sdo_geom.validate_layer_with_context for 3D geometries.
Please let us know if you have questions.
Best
baris
drop table myGeoms;
drop table extruded_myGeoms;
create table myGeoms(i number, geom sdo_geometry);
insert into myGeoms(i, geom) values(1,
MDSYS.SDO_GEOMETRY(3003, null,null,
MDSYS.SDO_ELEM_INFO_ARRAY(1,1003,1),
MDSYS.sdo_ordinate_array(
715202.739577727,733492.909091357,12.4890003204346,
715206.759608945,733492.412077086,12.4890003204346,
715208.666575034,733506.889047512,12.4540004730225,
715204.72752625, 733507.364066093,12.4320001602173,
715202.739577727,733492.909091357,12.4890003204346
insert into myGeoms(i, geom) values(2,
MDSYS.SDO_GEOMETRY(3003, null,null,
MDSYS.SDO_ELEM_INFO_ARRAY(1,1003,1),
MDSYS.sdo_ordinate_array(
715202.739577727,733492.909091357,14.4890003204346,
715206.759608945,733492.412077086,14.4890003204346,
715208.666575034,733506.889047512,14.4540004730225,
715204.72752625, 733507.364066093,14.4320001602173,
715202.739577727,733492.909091357,14.4890003204346
insert into myGeoms(i, geom) values(3,
mdsys.sdo_geometry(3003, null, null,
mdsys.sdo_elem_info_array(1,1003,1),
mdsys.sdo_ordinate_array(1,1,10, 0,1,10, 0,0,10, 1,0,10, 1,1,10))
create table extruded_myGeoms(id number, geom sdo_geometry);
-- This program assumes that each geometry in myGeoms table
-- has only 1 ring per polygon ie, 1003 etype element.
set serveroutput on;
declare
type cursor_type is REF CURSOR;
query_crs cursor_type ;
-- For each extruded geometry (result), this array has the ground heights
ords_bottom_z_array sdo_number_array := null;
-- For each extruded geometry (result), this array has the top heights which is set to 20 for each element.
-- Both arrays must have the same number of elements.
ords_top_z_array sdo_number_array := null;
ords2d mdsys.sdo_ordinate_array := null;
result sdo_geometry;
g1 sdo_geometry;
g2d sdo_geometry;
stmt varchar2(100);
id1 number;
cnt integer;
k integer;
l integer;
the_dim        number;
gtype_2d       number;
begin
stmt := ' select i, geom from myGeoms ';
OPEN query_crs FOR stmt;
LOOP
BEGIN
   FETCH query_crs into id1, g1;
   EXIT when query_crs%NOTFOUND ;
   ords2d := mdsys.sdo_ordinate_array();
   ords_bottom_z_array := SDO_NUMBER_ARRAY();
   ords_top_z_array := SDO_NUMBER_ARRAY();
   k:=ords_bottom_z_array.count;
   l:=ords2d.count;
   FOR cnt in 1..g1.sdo_ordinates.count LOOP
     if (mod(cnt, 3) = 0) then
       -- Get z values of polygon
       ords_bottom_z_array.extend(1);
       ords_top_z_array.extend(1);
       k:=k+1;
       ords_bottom_z_array(k) := g1.sdo_ordinates(cnt);
       ords_top_z_array(k) := 20.0; -- Constant
     else
       -- To have 2D geometry for input to sdo_util.extrude
       ords2d.extend(1);
       l := l+1;
       ords2d(l) := g1.sdo_ordinates(cnt);
     end if;
   end loop;
   the_dim := floor(g1.sdo_gtype / 1000);
   gtype_2d := (the_dim-1)*1000 + mod(g1.sdo_gtype, 10);
   g2d:= sdo_geometry(gtype_2d, null, null,
           mdsys.sdo_elem_info_array(1,1003,1),
           ords2d);
   result:= sdo_util.extrude(g2d, ords_bottom_z_array, ords_top_z_array, 'FALSE', 0.05);
   -- insert the extruded geometry (result) into new table
   insert into extruded_myGeoms(id, geom) values(id1, result);
   dbms_output.put_line('id = '||id1);
END;
END LOOP;
end;
/

How to add SRID SIRGAS 2000 POLYCONIC to ORACLE SPATIAL ?

Hi all,
I would like to add srid sirgas 2000 polyconic to oracle. But i dont know how to do.
Can anybody help me?
The link to sirgas 2000 polyconic is, SIRGAS 2000 / Polyconic: SR-ORG Projection -- Spatial Reference
Regards,
Sólon

Why don't you start with the documentation: Coordinate Systems (Spatial Reference Systems)
Especially paragraph 6.9 (6.9 Creating a User-Defined Coordinate Reference System ) should be helpful for you.
HTH,
Stefan

How to use Oracle Spatial in this scenario

My scenario is like that:
I'm very new to Oracle Spatial
I'm building an application that will be based on asp.net.(I am
confident about .net)
As per my client requirement there are some kml file in one archive
folder.
Let me give an example:
say there is a kml file for region A.(latitude say 36 n to 40 n and
longitude is 110 w to 115 w) already in the archive folder.
Now if a new kml file(say A1.kml) that has been created by the user
and say its latitude and longitude are respectively 37n and 112w. As we clicked A.kml, google earth is opened up for the region A and as
we move our mouse cursor to more deeper more polygons are visible.
eventually polygon for A1.kml is also visible and definitely which is
inside the polygon for region A.
How can I achieve this thing by using oracle spatial 10g? ---(it's one of my senior's advice to use "oracle spatial 10g" in this scenario)
I'm not too sure whether I can able to make it clear to u about my
situation; plz xcuse me if I'm wasting ur valuable time.

Hi,
This link helped me a lot!
http://www.oracle.com/technology/pub/articles/rubio-mashup.html
Hope it could help you too.
Best regards,
Luiz

Extrude 3D polygons with multiple rings in Oracle spatial

In this thread Extrude 3D polygons in Oracle spatial Baris provided a sample script to extrude a polygon with one ring into a 3D solid.
How do I extrude a polygon with multiple rings?
Given this polygon
! http://public.johnnyotoole.fastmail.fm/Polygon_with_hole.jpg !
, I tried to create a solid as follows:
SQL> select * from v$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
PL/SQL Release 11.1.0.7.0 - Production
CORE    11.1.0.7.0      Production
TNS for 32-bit Windows: Version 11.1.0.7.0 - Production
NLSRTL Version 11.1.0.7.0 - Production
5 rows selected.
SQL> DECLARE
2    l_base_geom      SDO_GEOMETRY;
3    l_solid SDO_GEOMETRY;
4   BEGIN
5
6    l_base_geom :=
7     SDO_GEOMETRY(2003, NULL, NULL, SDO_ELEM_INFO_ARRAY(1, 1003, 1, 21, 2003, 1),
8     SDO_ORDINATE_ARRAY(568758.064, 835364.907, 568735.12, 835362.873, 568735.897, 835354.404, 568737.264, 835334.554,
9     568738.711, 835317.612, 568758.063, 835319.294, 568790.598, 835322.124, 568787.473, 835358.924, 568786.671, 835367.888,
10     568758.064, 835364.907, 568758.063, 835354.97, 568758.811, 835355.046, 568759.253, 835349.107, 568764.952, 835349.529,
11     568764.51, 835355.468, 568778.388, 835356.625, 568778.627, 835353.883, 568778.681, 835353.252, 568778.757, 835352.388,
12     568780.648, 835330.63, 568758.063, 835328.714, 568747.322, 835327.804, 568744.841, 835353.627, 568758.063, 835354.97));
13
14     DBMS_OUTPUT.PUT_LINE('Valid? ' || SDO_GEOM.VALIDATE_GEOMETRY_WITH_CONTEXT(l_base_geom, 0.005));
15
16     l_solid :=
17     SDO_UTIL.EXTRUDE(
18             l_base_geom,
19             SDO_NUMBER_ARRAY(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
20             SDO_NUMBER_ARRAY(5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5),
21             'FALSE',
22             0.005);
23
24 DBMS_OUTPUT.PUT_LINE('Volume: ' || sdo_geom.sdo_volume(l_solid,0.005));
25
26 END;
27 /
Valid? TRUE
DECLARE
ERROR at line 1:
ORA-29532: Java call terminated by uncaught Java exception: java.lang.ArrayIndexOutOfBoundsException
ORA-06512: at "MDSYS.SDO_UTIL", line 241
ORA-06512: at line 16Any ideas?

Would you please have only 10 elements in your sdo_number_arrays in your case?Is this what you mean?
SQL> DECLARE
2    l_base_geom      SDO_GEOMETRY;
3    l_solid SDO_GEOMETRY;
4   BEGIN
5
6    l_base_geom :=
7     SDO_GEOMETRY(2003, NULL, NULL, SDO_ELEM_INFO_ARRAY(1, 1003, 1, 21, 2003, 1),
8     SDO_ORDINATE_ARRAY(568758.064, 835364.907, 568735.12, 835362.873, 568735.897, 835354.404, 568737.264, 835334.554,
9     568738.711, 835317.612, 568758.063, 835319.294, 568790.598, 835322.124, 568787.473, 835358.924, 568786.671, 835367.888,
10     568758.064, 835364.907, 568758.063, 835354.97, 568758.811, 835355.046, 568759.253, 835349.107, 568764.952, 835349.529,
11     568764.51, 835355.468, 568778.388, 835356.625, 568778.627, 835353.883, 568778.681, 835353.252, 568778.757, 835352.388,
12     568780.648, 835330.63, 568758.063, 835328.714, 568747.322, 835327.804, 568744.841, 835353.627, 568758.063, 835354.97));
13
14     DBMS_OUTPUT.PUT_LINE('Valid? ' || SDO_GEOM.VALIDATE_GEOMETRY_WITH_CONTEXT(l_base_geom, 0.005));
15
16     l_solid :=
17     SDO_UTIL.EXTRUDE(
18             l_base_geom,
19             SDO_NUMBER_ARRAY(0,0,0,0,0,0,0,0,0,0),
20             SDO_NUMBER_ARRAY(5,5,5,5,5,5,5,5,5,5),
21             'FALSE',
22             0.005);
23
24 DBMS_OUTPUT.PUT_LINE('Volume: ' || sdo_geom.sdo_volume(l_solid,0.005));
25
26 END;
27 /
Valid? TRUE
DECLARE
ERROR at line 1:
ORA-29532: Java call terminated by uncaught Java exception: java.lang.Exception: 54550
ORA-06512: at "MDSYS.SDO_UTIL", line 241
ORA-06512: at line 16
If the heights and ground heights are all the same in your sdo_number_arrays (as in this case), then you can just specify one number in each array instead of specifying a height/ground height for each vertex.Ok, I see what you mean. This works when I use just the outer ring.
SQL> DECLARE
2    l_base_geom      SDO_GEOMETRY;
3    l_solid SDO_GEOMETRY;
4   BEGIN
5
6    l_base_geom :=
7     SDO_UTIL.EXTRACT(
8     SDO_GEOMETRY(2003, NULL, NULL, SDO_ELEM_INFO_ARRAY(1, 1003, 1, 21, 2003, 1),
9        SDO_ORDINATE_ARRAY(568758.064, 835364.907, 568735.12, 835362.873, 568735.897, 835354.404, 568737.264, 835334.554,
10        568738.711, 835317.612, 568758.063, 835319.294, 568790.598, 835322.124, 568787.473, 835358.924, 568786.671, 835367.888,
11        568758.064, 835364.907, 568758.063, 835354.97, 568758.811, 835355.046, 568759.253, 835349.107, 568764.952, 835349.529,
12        568764.51, 835355.468, 568778.388, 835356.625, 568778.627, 835353.883, 568778.681, 835353.252, 568778.757, 835352.388,
13        568780.648, 835330.63, 568758.063, 835328.714, 568747.322, 835327.804, 568744.841, 835353.627, 568758.063, 835354.97)),
14     1,1);
15
16     DBMS_OUTPUT.PUT_LINE('Valid? ' || SDO_GEOM.VALIDATE_GEOMETRY_WITH_CONTEXT(l_base_geom, 0.005));
17
18     l_solid :=
19     SDO_UTIL.EXTRUDE(
20             l_base_geom,
21             SDO_NUMBER_ARRAY(0),
22             SDO_NUMBER_ARRAY(5),
23             'FALSE',
24             0.005);
25
26 DBMS_OUTPUT.PUT_LINE('Volume: ' || sdo_geom.sdo_volume(l_solid,0.005));
27
28 END;
29 /
Valid? TRUE
Volume: 11839.18887702For the purposes of what I'm doing now, I think I'll just use the outer ring to create my solids, but it would be useful if SDO_UTIL.EXTRUDE works on polygons with multiple rings (maybe it does, I'm probably doing something wrong...).

How do we split our iCloud accounts but keep one iTunes account so we can share purchased content for our multiple iPhones and iPads?

How do we split our iCloud accounts but keep one iTunes account so we can share purchased content for our multiple iPhones and iPads?

You can migrate a copy of the data to a new account, then delete the other person's data from each account. To do this, on the phone that will be changing accounts, if you have any photos in photo stream that you want to keep on the phone, save these to your camera roll by opening the photo stream album in the thumbnail view, tapping Edit, then tap all the photos you want to save, tap Share and tap Save to Camera Roll. If you have any synced notes that you want to keep on the phone, email these to yourself so you can create new notes in the new account.
Once this is done, go to Settings>iCloud, scroll to the bottom and tap Delete Account. (This will only delete the account from this phone, not from iCloud. The phone that will be keeping the account will not be effected by this.) When prompted about what to do with the iCloud data, be sure to select Keep On My iPhone. Next, set up a new iCloud account using a different Apple ID (if you don't have one, tap Get a Free Apple ID at the bottom). Then turn iCloud data syncing for contacts, etc. back to On, and when prompted about merging with iCloud, choose Merge. This will upload the data to the new account. You will create a new icloud email address with you turn Mail to On.
Finally, to un-merge the data you will then have to go to icloud.com on your computer and sign into each iCloud account separately and manually delete the data you don't want (such as deleting your wife's data from your account, and vice versa).

How can I split the video port of an older Mac Mini so I can use both the 922-6199 DVI to RCA, S-Video Adapter and a Cinema Display?

How can I split the video port of an older Mac Mini so I can use both the 922-6199 DVI to RCA, S-Video Adapter and a Cinema Display?

Which exact Mini?
At the Apple Icon at top left>About this Mac.
Then click on More Info>Hardware and report this upto but not including the Serial#...
Hardware Overview:
Model Name: iMac
Model Identifier: iMac7,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 6 GB
Bus Speed: 800 MHz
Boot ROM Version: IM71.007A.B03
SMC Version (system): 1.21f4

How do you split the print job across multiple printers to shorten the prin

i
Can any one you provide some information on below questions.
Check printing by XML template (XML Publisher).
1. When printing checks, how do you print the checks from one printer tray and the overflow remittance pages from another printer tray?
2. When printing a large batch of checks using XML and PDF output, how do you split the print job across multiple printers to shorten the print time?
I appreciate if you could give some information on above 2 questions.
Regards,
Ramarao.

Probably sould just do them individually.
How to get all the iWork apps, iPhoto, and iMovie for free on an eligible iPhone or iPad
http://www.imore.com/how-get-all-iwork-apps-iphoto-and-imovie-free-eligible-ipho ne-or-ipad
About Free Apple Apps for iOS 7 compatible devices
http://support.apple.com/kb/HT5913
 Cheers, Tom

I have multiple users on one account and now want to split the account. How do you split and account?

My family and I have used the same account for many years. We are now looking to create individual accounts and separating the music and other items appropriately. How do you split an account?

It's not currently possible to split an account, all content will remain tied to the account that originally bought/downloaded it. You can try leaving feedback for Apple, and maybe at some point it will be possible : http://www.apple.com/feedback/

I have 2 Ipads (ipad2 and Ipad3) and 2 Iphones (4 and 4s) all under 1 account in itunes. How would I split these into 2 accounts and still be able to share itunes music?

I have 2 Ipads (Ipad2 and Ipad3) and 2 Iphones (4 and 4S) that are currently sharing 1 username for itunes. How can I split 1 ipad and 1 iphone to another username and still use my music library in itunes?

Sign out of the iTunes, store, iMessage, and iCloud on the devices, then sign in with the account you want.
This simply changes the account the device is pulling content from.
Content can not be moved from one account to another. Content is permanently tied to the account it was acquired with.
What are you really trying to accomplish?

I have a DAQ Assistant configured to read multiple channels at the same time. When I wire a graph indicator to the output, I see all of my signals jumbled together. How do I split them up into seperate signals?

I have a DAQ Assistant configured to read 2 channels at the same
time. When I wire a graph indicator to the output, I see the 2
signals jumbled together. How do I split them up into seperate signals?
When I wire any type of indicator it is showing just one output of a single channel.
I want 2 indicators showing 2 different signals as expected from the 2 channels configured. How to do this?
I have tried using split signal but it end up showing only 1 output from 1 signal in both the indicators.
thanks in advance.
Solved!
Go to Solution.

Yes you are right. I tried that but I did not get the result.
I just found the way. When we launch split signal, we should expand it (split signal icon) from above and not from below. It took me a while to figure out this.
thanks

How can i split a library into two.. i no longer want to sync all of my wifes songs and apps.. i have a separate account, but want to take my music and apps from hers so i now have my own and she has her own.. so that syncing is easier

how can i split a library.. my wife and i used to share it, but now we have our own id's.. i want my music and apps off of hers so that i can sync my phone and only my music and apps will "come over"

how do i share then? can she upload music if we share it somehow?
If so how??
i am also having the same problems now with IPhoto, she has all of her/our pics in my IPhoto library.
I have told her that now i have bought her the Ipad she would have to log into her user, the only thing is there is no music in her itunes account nor photos in her I Photo library, i have spent all day trying to find a way to "share" but no luck,
Please help i`m going mad!
Surely we could just share these...?
I need step by step instructions please someone send me a link on "how to share pics and music!"

I share an Apple ID with someone but we are now on iOS8 and getting each others messages on our iphones and ipad. How can I split the account safely as well as protect icloud backed up data?

I share an Apple ID with someone but we are now on iOS8 and getting each others messages on our iphones and ipad. How can I split the account safely as well as protect icloud backed up data?

Use different Apple IDs for iMessage (and also FaceTime) to avoid getting each others text messages (and FaceTime calls). One of you should go to Settings>Messages>Send & Receive (and Settings>FaceTime), tap the ID, sign out, then sign back in with a different ID. You can continue to shared the same ID for the iTunes store and other services.

Using numbers 2.3 how do i split windows to view more than 1 spreadsheet at a time?

using numbers 2.3 how do i split windows to view more than 1 spreadsheet at a time?

Hi seth,
Numbers vocabulary:
Spreadsheets (aka: Document)
contain one or more Sheets
on each of which may be placed one or more Tables
each of which contains one or more cells
each of which may contain either data or a formula.
Spreadsheets open in separate windows. Depending on the contents of each spreadsheet, and the scale at which you want to see it (and the size of your display), you can view more than one spreadsheet in the same manner as you can view more than one of any kind of document—open two documents in separate windows. Resize the windows to allow both to be viewed at the same time. Place and scale the individual documents to permit viewing the desired part of each
Sheets within the same document cannot be displayed simultaneously. You can make and open a copy of the document, then open and view both copies as described above, but this introduces new opportunities to edit the wrong copy. You could Copy a Table from one part of the document, open Preview and go File > New from Clipboard to create a PDF copy of that table (readable, but not editable), and view the spreadsheet and pdf documents as described above.
Tables can be rearranged, or have rows or columns (or both) hidden to permit simultaneous viewing of selected parts of both.
A Table can have Table > Freeze Header Rows and Table > Freeze Header Columns set to keep these rows/columns visible as the rest of the table is scrolled. Or can have a range of rows (or columns) hidden to allow viewing of rows (columns) adjacent to that range visible on the same screen.
Numbers does not support freezing of rows or columns other than Header rows and Header Columns.
Regards,
Barry

How do I split my albums in iPhoto, so not albums to bee seen, only 1?

How do I split, or seperate, my albums in iPhoto, so not all albums can be seen at once?? This, if I send the link to someone, about +one specific album+.
Some albums are for other eyes only.......
Now, it seems, that everybody can see ALL the albums, after they have received the link for just 1 album.....
Help!

Welcome to the Apple Discussions. If you're referring to MobileMe albums created from iPhoto bring up the Info window while viewing the gallery and click on the Change Settings button.
Next check the Hide album on my gallery page checkbox and set the Album Viewable by: to Everyone. Now you can send the URL for the gallery to visitors and when they go to the gallery they will not see the other albums.
Click to view full size
This will give you a galley like this one: Space Station Photos. It's isolated from the other albums in my gallery.

How do I split or explode polygons in Oracle Spatial?

Similar Messages

Maybe you are looking for