Best approach to extract grenade lineup positions & trajectories from demos for educational platform?

[brax1wnl]

Hey! I'm building a platform that showcases pro player POVs and I'm currently using CSDM's parser to extract match data.
Current workflow:

Parse demos with CSDM
Convert player POVs to MP4 files
Extract match JSON for scoreboard/statistics
Upload to web platform for viewing

What I'm trying to accomplish:
I want to add a feature where users can learn the specific utility lineups that pros use in these matches. I can see CSDM already has this data since it:

Shows grenade trajectories on the 2D viewer (Image attached)
Has a "Copy position" feature that outputs: setpos -732.876343 -1322.138428 -375.609375; setang -17.864105 -11.352661
Displays the grenade matrix between players

My questions:

Does the JSON export include grenade event data? (positions, angles, grenade type, tick, player, etc.)
If not, what's the recommended way to programmatically extract this data from demos using CSDM's parser?
Are there existing data structures/models in the codebase I should reference for grenade events?
For the "copy position" functionality - is there an API/method to get player position + view angles at specific ticks where grenades were thrown?

Use case:
Allow users to click on a grenade icon in the POV timeline → see the exact position/crosshair placement → practice the lineup themselves.
Any guidance on the best technical approach would be greatly appreciated. Happy to contribute back if this requires new export functionality.

Thanks!

[akiver]

Data are stored in a PostgreSQL database, so you can extract what you need from it. There are some examples here.
The tables you may be interested in are shots and grenade_positions, but you should probably explore the database schema to find what you need.

Another approach would be to use https://github.com/akiver/cs-demo-analyzer to extract data into CSV or JSON files.
CSDM internally uses it and the program is bundled with CSDM, you can find it in the static folder where CSDM is installed.