Partitioning of the network using the API of LOD

Hi all,

as the continuity of this thread.
Difference between partition and partition of BLOBs in NDM
I'm going to make my network partitioning; My network has links 7 817 372 and 6 662 079 nodes, so I think that that is classified as a large network. For this reason, I will exercise the procedures sdo_net.spatial_partition and sdo_net.generate_partition_blobs. I initially put max * 10000 * nodes for the partition.

Relatively to the sdo_net.spatial_partition procedure, I see the tutorial on hillsborough network, where:

-of partition HILLSBOROUGH_NETWORK on link 1 (default link_level) in partitions with at most
knots - 2000
EXEC sdo_net.spatial_partition ('HILLSBOROUGH_NETWORK', ' HILLSBOROUGH_NETWORK_PART$ ', 2000, "WORK_DIR', 'hillsborough.log', 'a'");

-of partition HILLSBOROUGH_NETWORK on link 2
EXEC sdo_net.spatial_partition ('HILLSBOROUGH_NETWORK', ' HILLSBOROUGH_NETWORK_PART$ ', 2000, "WORK_DIR', 'hillsborough.log', 'a', 2 ');

All link level setting, as shown on the guide, topology and designer of the model data network link has been defined as the reflects the level of priority for the link and is used for network analysis, so that links with the higher priority levels can be considered first in the computer path.

My question is:
Link level setting refers to insert value in the table LINK_LEVEL to $ LINK?
If Yes, if I did not insert into the table LINK_LEVEL field of $ LINK, do I put this link level parameter must be 1 (default link_level)?

Thank you in advance.
UserData minutes = link.getUserData(2); //2 is the category_id of UserData

A UserData object contains a list of data values from the user to the link or node. For example, a link can have a name of user data "MINUTES" and another named "km/h" in the same category of the user data. So to get the value of a specific user data, you must call UserData.get (int userDataIndex). See the following example:
UserData linkUserData = link.getUserData (2); 2 is the stuff of UserData
Assuming that you only have a single user data recorded for the links in the category of user 2 data, then you get the MINUTES value using:
Double minutes = (Double) linkUserData.get (0); 0 is the index of the data of the user "MINUTES".

If you have several user data stored for the link in the same category, then you can get the index for each user's data by querying USER_SDO_NETWORK_USER_DATA:
Select rownum-1 data_index, user_sdo_network_user_data data_name
where table_type = 'LINK' and stuff = 2
by data_name orderY;

Also, after registering new user of your network data, remember to regenerate the blobs of partition if you want to load blob partitions during the analysis of network.

Tags: Database

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