Loading Data And Sessions#

MapView reads the same inputs as the rest of pyCSAMT — folders of EDI station files — plus ModEM inversion results that it can place in the same scene as the stations that produced them. Everything is loaded through one dialog with two tabs.

Open the loader from the welcome screen’s Load Survey Lines - Start button or the Load lines button on the top bar.

EDI Stations#

On the EDI stations tab:

choose Replace to load a fresh survey, or Add lines to merge more lines into the survey already loaded (existing stations are kept);
use Browse folder to pick a survey directory, or drag EDI/AVG/J files (or whole folders) onto the drop zone;
multi-line surveys load in one pass — each subfolder (or filename prefix) becomes a survey line;
a progress bar reports parsing, and the footer confirms the result (for example Loaded 128 station(s) from 5 line(s));
click Load into view to place the survey on the map.

The same folder can be preloaded from the command line with pycsamt-mapview --data <folder> (see Installation And Launch).

Once loaded, the line picker and station list in the left panel control what is drawn. The line chips (All, then one per line) toggle whole lines; each station row has an eye toggle to show or hide it. The selection applies to both views — the 2-D map and the 3-D scene alike.

Inversion Results#

The Inversion results tab imports model output so you can inspect resistivity structure in the same scene as the survey geometry:

Browse folder to a ModEM results directory;
leave Match coordinates from already-loaded EDI stations enabled so the importer aligns the model laterally using the station positions already on the map — load the survey’s EDIs first, then the results;
click Import inversion results.

A single ModEM run inverts one volume for the whole survey; MapView slices it into one panel per detected line, which is what you then see in the 3-D fence, block, depth-slice, and iso-surface renderings (see Views And Controls).

Sites#

The Sites button on the top bar opens station/sites settings — options that control how stations are interpreted and displayed. Use it when station identifiers, grouping, or geometry need adjusting after loading.

Sessions#

Loaded data lives in a per-browser-tab session cache on the server:

you can reload the page without re-uploading the survey;
two browser tabs do not interfere with each other — a second tab starts empty by design;
the Session button on the top bar saves and restores your working state;
restarting the server clears the cache.

MapView never writes into your data folders, so loading, reloading, and restarting are always safe.