Quickly create a circle chart with Autolisp

The circle diagram is a widely used engineering drawing technique, particularly in quality inspection processes. It involves marking each dimension with a circled number, which is connected to the corresponding measurement via an arrow, as illustrated in the figure. This visual method allows inspectors to easily record measurements and track results efficiently. Additionally, it provides a clear visual indication of whether parts meet specifications, and the pass rate can be further analyzed using Excel. While this approach is effective for quality traceability, manually creating these diagrams can be time-consuming due to the repetitive tasks of drawing circles, arrows, and numbers. To address this issue, we developed an AutoLISP application through AutoCAD's secondary development tools. This applet functions as a custom command within AutoCAD, significantly streamlining the process of generating circle diagrams. The program allows users to input a starting number and text height, and then automatically places the circle, arrow, and numbered label by clicking on the required points. The number increments automatically, eliminating the need for manual entry. As a result, the efficiency of creating circle charts can be improved by up to 5 to 10 times, making the entire process faster and more accurate. By reducing repetitive work, this tool not only saves time but also minimizes errors, making it an essential addition for engineers and inspectors working with detailed drawings.

Solar LED Street Light

Solar LED Street Light has become an increasingly popular way of providing energy-efficient lighting for public spaces and roads. As the name suggests, solar street lamps are powered by solar panels that collect energy from the sun during the day, which is then stored in rechargeable batteries. This energy is then used to power LED lights, which can provide bright and long-lasting lighting for up to 12 hours without any additional power source. With the inclusion of various features such as motion sensors, solar induction street lights and more, these solar powered street lights have proven to be an effective solution for reducing energy consumption and carbon footprint. Let us dive deeper into the discussion and learn more about the benefits of this amazing technology.

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