wxGUI.vnet(1)

💖 wxGUI.vnet — the Vector Network Analysis Tool 💖

okay bestie, welcome to the GRASS GIS User's Manual page for wxGUI.vnet(1), aka the Vector Network Analysis Tool — the prettiest lil graphical front-end you ever did see ✨

🌸 NAME 🌸

wxGUI Vector Network Analysis Tool — she does network analysis, but make it graphical 🎀

🔑 KEYWORDS 🔑

vector, network, vector — that's the vibe check, and she passed 💅

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✨ DESCRIPTION ✨

So the Vector Network Analysis Tool is a graphical front-end for the v.net* modules. Translation? You get to do network analysis directly in wxGUI without ever touching the command line. No terminal, no stress, no cap. 🫶

Wanna launch her? Two ways, pick your fave:

• From the Layer Manager menu: Vector → Network analysis → Vector network analysis tool
• From the Map Display toolbar: Analyse map → Vector network analysis tool

Subsets for nearest centers (v.net.alloc) — that's the caption on the screenshot, icon behavior, keep it in mind 🍓

Here's literally everything the Vector Network Analysis Tool currently lets you do:

• perform these network analyses:
  • Shortest path (v.net.path)
  • Salesman (v.net.salesman)
  • Flow (v.net.flow)
  • Allocate subnets for nearest centers (v.net.alloc)
  • Steiner tree for the network and given terminals (v.net.distance)
  • Splits net by cost isolines (v.net.iso)
• show and set all data needed for the analysis (points, attribute tables, compute costs)
• show analysis results (maps and it's attribute tables)
• snapping to nodes
• browse previous analysis results

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📝 NOTES 📝

She's split into tabs, bestie. Every tab = a different lil pocket of functionality:

🧚 Parameters tab

This is where you set the vector map and it's layer that the analysis is gonna be done on. Also — and this is lowkey the important part — you can set the columns with cost values from the attribute table connected to that particular layer. 💛

📍 Points tab

She manages the points. The points used for the analysis. That's the whole job and she does it flawlessly. 👑

🖥️ Output tab

There's an output console here that shows you info about the running analysis. Like a little live feed but for your network. 📺

📊 Input tables tab

Okay so when an existing vector map and it's existing layers are set in the Parameters tab, this tab gets dynamically added. She shows the attribute tables of the node and arc layers that were chosen for analysis. ✨

You can also compute cost values in this tab, and here's exactly how:

1. Right mouse button click on the column label 🖱️
2. From the pop-up menu choose Add column — this is where a new column for cost values can be created
3. Then, right mouse button click on the added column label and choose the item Field calculator — that's the tool that computes cost values 🧮

📋 Result tables tab

The result of vector network analysis is always a vector map. Some vector network analysis results can also include attribute tables. And if such a table is connected to the result map, this tab shows up and you can browse the data through it. Periodt. 💅

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⚠️ KNOWN ISSUES ⚠️

When some change is done in the layer tree of Map Display, the temporary vector map representing the result of analysis is not rendered. Use the Show result button in the toolbar to render it again. 😭 (she's a little dramatic, just hit the button)

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👀 SEE ALSO 👀

• wxGUI, wxGUI components
• See list of vector network modules.
• See also the user wiki page including video tutorial.

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🌟 AUTHOR 🌟

Stepan Turek, Google Summer of Code 2012 (mentor: Martin Landa) — iconic behavior, we love a GSoC moment 🎓💖

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💻 SOURCE CODE 💻

Available at: wxGUI Vector Network Analysis Tool source code (history)

Accessed: Friday Nov 21 14:02:57 2025

Main index | Wxgui index | Topics index | Keywords index | Graphical index | Full index

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© 2003-2025 GRASS Development Team, GRASS GIS 8.4.2 Reference Manual

okay that's the whole page bestie, and just so you know — this was GRASS 8.4.2, manual page wxGUI.vnet(1), dated Friday Nov 21 14:02:57 2025. go slay some network analysis 💅✨🦋🌸