ernestq09

Today I took my time to restructure the hierarchy of the app. Now, there will be two main tabs, viewer and function. Inside the viewer tab, there will be 3 tabs/pages: Cross-section shape, XY-Plane, and 3D Shape. Today’s work was mainly focused on the former, where I was able to write pretty much the entirety of the InputPanel class and get the FigurePanel to work. This means I can make some functions actually get plotted with subdivisions specified. I say almost done with InputPanel because it still needs to be able to set manually or automatically the bounds. Also FigurePanel is a bit bugged out due to how I implemented matplot lib in it. Lots of work to do! Lots of work done! I am in a bit of a rush, but the next devlog(s) will be more detailed.

Learned PyQt5 basics and tried having a placeholder app, but to little avail. Unfortunately, I can not work on this project for a little bit right now but when I come back I will make sure everything works. I was able to create a state manager class, a main file, an organized file architecture, an app window function, a buggy functions panel, a not working viewer panel, a mid input panel, and a non-functional canvas panel. Lots of work to do!!! I will now attach some screenshots of the program so far:
Also, I need to figure out how to get matplotlib to plot in 3D and just ignore values that don’t fit on the graph and also allow for scrolling/zooming/panning

See you in the next one!

Completed the initial brainstorming phase of my visualizer app, and designed (on paper) my hierarchy, tabs, panels, purpose, and functionalities of the entire app. Then I decided on my tech stack (sympy, numpy, scikit potentially, matplotlib, and PyQT5).

It will basically be structured as
Top Tab Bar {
Viewer Tab {
Input Panel (left) {
Functions Input Grid (3x2) (XY1, XY2, Z)
Bounds Controller (a, b, a, inf, or -inf, inf)
Subdivisions Slider (0 to 1000)
Variable of Integration Toggle (dx or dy)
}
Canvas Panel (right) (show the 3D result)
Bottom Tab Bar {
XY-Plane Tab
Cross-Section Tab
3D Shape Tab
}
}
Functions Tab {
Functions Name List
Functions Symbolic Renderer
}
}
State Manager {handle current expressions and variables}

I have decided on my plan to be building the math engine (MVP completed today) -> PyQT Windows with placeholder panels (tomorrow) -> Functions Tab + XY Plane Tab -> Cross Section Tab -> 3D Shape Tab -> Polish -> Ship!!!

Today I built a rough model of the math_engine.py and created a Jupyter notebook to test everything sequentially and in an organized fashion. I’m pretty happy with what I have so far and can’t wait to keep this going!

Also worth noting: THIS BUG TOOK ME SO LONG TO FIX - in parse_xpr(String: expression) which returns a sympy-compatible function I parsed with respect to x, but that x changed for the incoming function and was not the x that I had set up as an sp.Symbol which was already restricted to the real domain. Almost gave me a headache, but the solution was just to change x for locals={“x”: x}

Also I tested everything in the Jupyter notebook for debugging and am so happy with the results precisely matching up with Desmos’ calculated values! Feel free to check out the repo and mess around with values for a and b and expressions 1 and 2 to test out the math engine and report any bugs, please!