Function Syntax: SLOPE_01 Version: 1.0 Date: 07.04.2025 7:44:18AM AI+https://forums.augi.com/showthread.php?107096-Slopes-and-angles-of-a-polyline-in-2d-autocad Description 🧩 Slope_Ro calculates a slope ratio and angle from two user picked points. 📏 The current routine uses a fixed vertical run reference of 12 and reduces the calculated integer ratio using the greatest common divisor. 📢 The computed slope ratio and angle in degrees are displayed in an AutoCAD alert dialog. Function Syntax Main command: SLOPE_01 SEO Optimized Overview 📍 The user picks a starting point followed by an ending point. 🧮 The absolute XY slope is calculated from the coordinate differences. 📏 The source uses slope_v equal to 12 as a fixed imperial style reference. ➗ The integer horizontal component and 12 reference are simplified with a greatest common divisor loop. 📐 The slope angle is calculated with atan and converted to degrees. 📢 An alert displays Slope_Ro ratio and Angle. ↩️ The source starts an AutoCAD undo group although the current implementation does not create annotation geometry. Primary Workflow • Run SLOPE_01. • Pick the starting point. • Pick the ending point. • The routine calculates the slope ratio and angle. • Review the result in the alert dialog. Functionalities ✅ Two point slope - calculates slope from two picked XY coordinates. ✅ Fixed 12 reference - uses a 12 unit reference value. ✅ Ratio simplification - reduces the integer ratio with GCD. ✅ Angle calculation - reports the corresponding slope angle in degrees. ✅ Alert output - shows the result in a modal AutoCAD alert. Important Commands and Aspects 🧩 gcd simplifies the calculated integer ratio. 🧩 atan calculates the angular slope from the absolute slope value. Result 🎯 The current result is an alert containing the simplified Slope_Ro ratio and slope angle in degrees. Important Notes ⚠️ The current source does not create line text symbol or dimension annotation geometry. ⚠️ The source comments contain a placeholder indicating that symbol creation and text placement could be added later. ⚠️ The calculation uses XY differences and a fixed reference value of 12. SEO Keywords 🏷️ AutoCAD, 🏷️ AutoLISP, 🏷️ Slope_Ro, 🏷️ SLOPE_01, 🏷️ Slope ratio, 🏷️ Slope angle, 🏷️ Grade, 🏷️ GCD, 🏷️ CAD calculation