It’s an app for .NET Core 3.1 WinForm which reads in information from a popular system administrator tool for Linux, and its source code is published on our GitHub here. The sysadmin tool we’re talking about here is called sysstat, and you can read all about it on its GitHub page here. As you can […]
Category: General
TeeChart for .NET with Razor and Blazor under Net.Core 3
The TeeChart for .NET Core components may be used in a Razor component to add reusable code to your project portfolio. This post reviews two approaches, the use of a static TeeChart image rendered to the page and the use of a live Javascripted TeeChart. Example project here: https://github.com/Steema/TeeChart-for-.NET-CSharp-Web-samples/tree/master/TeeChartWithBlazor Image shows project output Setting up […]
TeeChart for RAD Studio – Kernel Density Estimator
Introduced in October 2019 in TeeChart for RAD Studio, the Kernel Density Estimation Function provides the basis for two series types: Violin Series BeeSwarm Series The Kernel Density Estimation (KDE) Function The Kernel Density Estimation (KDE) Function uses these parts: Input Values Position (the x offset) Resolution Bandwidth If left to automatically clamp the data, […]
Important changes into the new TeeChart NET for Xamarin.Forms Release
We’ve just released a new TeeChart NET for Xamarin.Forms version 4.1.2018.01040. If you’re a registered customer, you can download it directly through the Customer Area page, in the other case, you can always download a Trial version at steema.com or install it through Nuget Package at : nuget.org. This maintenance Release version includes important changes that should […]
TeeChart for NET with MVC
TeeChart’s MVC & ASP.NET Charting options For MVC, TeeChart for .NET can either render as a static image format such as PNG or JPEG or as a live javascript HTML5 Canvas object. See this page for some examples: TeeChart MVC examples page. Some of the techniques used by TeeChart’s native ASP.NET Webform chart have been […]
TeeChart for .NET Gauge demo – Subaru BRZ acceleration simulation
The example uses TeeChart’s Circular and Numeric Gauges to simulate the acceleration of a 2016 Subaru BRZ car. Example code for this demo may be downloaded from the github repository: Demo code at github.com/Steema This is a simulation only and though the basis is fairly faithful to empirical results it does not make claims to […]
Animated Activity Gauge with TeeChart Pro VCL
At the moment TeeChart Pro for VCL / FMX does not have a Series type available to create Activity Gauges, maybe in the near future, but here I will show how using another series type and some tricks we can create this kind of Chart. The series type to use is the Donut series. We’ve […]
Linking Charts Demo – Connecting TeeChart for NET to data binding sources
This demo shows how TeeChart’s Charts can be made to work with each other on a Form in a Winform application. The demo uses the basis of the company data of a small technical products supplier; the company sells electronic based products, small computers, tablets and mobile phones and has markets in some countries around […]
2x TeeChart speed in Firemonkey (FastLine, Direct2D)
The Firemonkey Canvas is fast but there is a performance problem when drawing lots of elements (“lots” being in the order of tens of thousands). Using a TPath, adding all the elements to it and then drawing the TPath gives some speed gains but it is not enough. Time is lost filling the TPath anyway. […]
Big files: XML or JSON ? TeeBI !!
Introduction XML and JSON are very typical text formats used to store data, designed to be more comfortable than plain old “csv” text and allowing hierarchical (parent -> child) relationships. However, even if there are many wonderful standard libraries to process them, there is still a speed problem when loading big quantities of data […]