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Giswater / giswater

Giswater software focused to management of water cycle using open source tools
http://www.giswater.org/
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Water network from GeoSan #8

Closed nexusbr closed 9 years ago

nexusbr commented 9 years ago

I have a water network in GeoSan that I can export the pipelines and nodes with all attributes in shape files. How can I use it in GisWater?

nexusbr commented 9 years ago

Hy Mr. Pinheiro

We have received your question via Github.

First of all, let me say thanks for your interest in Giswater

Second, I will proceed to answer your question: I have a water network in GeoSan that I can export the pipelines and nodes with all attributes in shape files. How can I use it in GisWater?

You must to know that Giswater runs under FOUR MAIN RULES: 1- SECTOR, 2- CATALOG, 3- ARC-NODE TOPOLOGY, 4- HYDRAULIC FEATURE CLASS

1) SECTOR. This means that each node and each arc of our network must to be associated to one sector (no geo-spatial analisys, simply using field calculator) but obviously, you must to have at least one sector in the sector layer 2) CATALOG. Material, arc (conduits only SWMM) and hydrology (subcatchment only SWMM) have a catalog. You must to fill at least one record in this tables in order to put this information in the hydraulic/hydrologic feature tables 3) ARC-NODE TOPOLOGY. Giswater runs under arc-node topology. You must to know that each arc must have two nodes (one at start and one at the end). This seems easy, but if you try to import shape file of arcs, may be you will have problems if you have not checked this. 4) HYDRAULIC FEATURE CLASS. In order to create (or use copy-paste) the features of your network, you must to use the hydraulic layers of the TOC of GIS. Let me say. If you would like to introduce one, or two or two-thousand of nodes as a junction, you must to use the layer of JUNCTIONS. On the other hand, if you would like to introduce one, or two or three nodes as a reservoir you must to use the layer of RESERVOIR.

In addition you must to respect other rules of the database as primary key, foreing key, etc....

You will have more information http://www.giswater.org/documentation/chapter3 (Water supply networks) http://www.giswater.org/documentation/chapter4 (Sewerage and urban drainage networks)

Also, you can visit www.geo-training.com if you are interested in full 'on line' training of Giswater

Finally, Let me say we are growing up the community of Giswater, and will be a pleasure for us if you would like to join the linkedin group of Giswater. In addition, It's interesting for us to answer this kind of questions using this group of linkedin in order to share this knowledge with everybody

Thank you again

Xavier Torret Requena

M +34 637 512424 T +34 93 8600293 www.bgeo.es

nexusbr commented 9 years ago

Xavier, thanks for the cooperation. We are already in the GISWater training. Eliseu is participating of it. The question is. If I already have a water network in shape with attributes. Do I need to draw the network lines and nodes over it, or can I import the existing ones? The arcs and nodes are coincident.