Implementing Irregular Building Models and Real-time Visitor Heatmaps with Three.js
This project creates a 3D WebGL-based visualization system for real-time visitor monitoring with in an exhibition complex. The primary technology stack includes Three.js for 3D rendering, ECharts for 2D charting, and WebSocket for live data transmission. The system displays visitor density, demographic analytics, and flow patterns across differ ...
Posted on Tue, 19 May 2026 15:14:36 +0000 by DeathStar
MPAndroidChart: Solving LimitLine Visibility and Repetition Issues
Understanding and Solving LimitLine Issues in MPAndroidChart
When implementing charts using the MPAndroidChart library, developers often encounter challenges with LimitLine functionality. This guide explores two common issues with LimitLine implementation and provides effective solutions.
Basic LimitLine Implementation
A LimitLine, also know ...
Posted on Tue, 19 May 2026 00:40:06 +0000 by mounika
SSRS Report Development Best Practices
Pie Chart Data Label Positioning
When working with pie charts in SSRS, data labels are displayed inside the pie segments by default. This can lead to overlapping text and poor readability, especially when dealing with multiple categories. To improve clarity, position data labels outside the pie chart:
Open the Properties panel (press F4)
...
Posted on Mon, 18 May 2026 17:42:48 +0000 by lauthiamkok
Web Scraping and Visualization Techniques for Location Data
Pandas can be used to load and filter Excel datasets containing geographic coordinates. For example, to extract Starbucks store locations in Shanghai from a spreadsheet, read the file and apply a city-based filter.
import pandas as pd
data_frame = pd.read_excel("stores_data.xlsx")
shanghai_locations = data_frame[data_frame['city'] == ...
Posted on Sun, 17 May 2026 08:54:17 +0000 by rckehoe
Constructing a Vertical Histogram for Character Frequencies in C++
Creating a visual representation of character frequencies requires managing three core components: storage mechanisms, input processing, and rendering logic. When focusing on uppercase English letters, a fixed-size array offers efficient storage compared to associative containers.
Input handling should robustly capture stream data until the end ...
Posted on Mon, 11 May 2026 04:20:08 +0000 by igebert
Python Data Visualization with Pandas and Matplotlib
Effective data visualization is essential for exploratory data analysis and communicating insights. This article covers common visualization methods using pandas and matplotlib.
Plot Types with pandas DataFrame
The pandas DataFrame provides built-in plotting methods that wrap matplotlib functionality. These methods accept a kind parameter to sp ...
Posted on Sat, 09 May 2026 20:40:05 +0000 by K3nnnn
Implementing Global Request Logging in Spring Boot with ECharts Dashboard Integration
Database SchemaTable CreationCREATE TABLE `request_audit_log` (
`log_id` BIGINT NOT NULL AUTO_INCREMENT,
`created_at` DATETIME NOT NULL COMMENT 'Request timestamp',
`client_ip` VARCHAR(30) NOT NULL COMMENT 'Client IP address',
`api_category` VARCHAR(50) NOT NULL DEFAULT 'General' COMMENT 'API category',
`endpoint_url` VARCHAR(100) NOT ...
Posted on Fri, 08 May 2026 23:38:15 +0000 by Eskimo887
WeChat Friend Analytics: Visualizing Gender Distribution, Location Heatmaps, and Signature Word Clouds
Overview
This article extends the WeChat bot implementation by analyzing friend statistics using wxpy library. The analysis covers gender distribution, geographic distribution across provinces and cities, signature word clouds, and location-based heatmaps.
Implementation Components
Word Cloud Generation
The wordcloud libray generates visual wor ...
Posted on Thu, 07 May 2026 12:57:07 +0000 by x01440