POI Checking-in Data Visualizer

Final Project for SJTU CS2309 Problem Solving And Practice. Analysis and visualization of POI checking-in data with Qt.

Build and Run

• Open visualizer.pro in Qt Creator
• Configure the project with Release target
• Build and run

Functionalities

Chart Plot

Display spatio-temporal information with parameters tuned freely

Information Comparison

Compare differences between two users or two POIs

Trajectory Showing

Show trajectory of a specific user over time

Heatmap Rendering

Display heatmap in a region with full user interaction

Cache Mechanism

Automatically record query history for faster repeated request and cache heatmap images for smoother experience