Ver. 3.1.2 - Common tangent circle and tangent line is now available (2026/3/24) - Leathercraft CAD
This update introduces two new features: Common Tangent Circle mode and Common Tangent Line mode.
These new tools make it easier to create circles tangent to multiple circles and/or lines, as well as lines tangent to two circles.
I believe these additions will help make drafting smoother in many situations, especially when creating patterns and decorative shapes.
This release also includes an update to the default text display behavior and usability improvements for the Leather Simulator.
In particular, scaling leather images has been made more intuitive and convenient.
In addition, this version includes several bug fixes and accuracy improvements related to the XY ruler, pricking tools, numeric input, Mandala mode, and intersection detection.
Overall, ver. 3.1.2 is focused on improving both usability and stability.
What’s New
- [Common Tangent Circle] Added a new mode for drawing a circle tangent to two or three circles and/or lines
- [Common Tangent Line] Added a new mode for drawing a line tangent to two circles
- [Text] Changed the default behavior so text is displayed as filled. It can still be individually set to outline-only display
- [Leather Simulator] Improved image scaling so that when exactly one shape with a leather image applied is selected, the image can now be scaled horizontally and vertically using SHIFT / CTRL / both + mouse wheel
- [Leather Simulator] Leather image scaling can now also be performed from the right-click menu
- [Leather Simulator] Fixed a bug where the Add Leather button could be clicked even when no brand had been created, causing an error
- [XY Ruler] Fixed a bug where the X ruler became invisible in white background mode
- [Pricking Delete] Fixed a bug where pricking deletion did not work correctly in some cases depending on the angle of the line
- [Pricking] Fixed a bug where multi-prong pricking no longer worked in manual mode
- [Numeric Length Input] Fixed a bug where the original value was used unless the new value was confirmed with the Enter key
- [Mandala] Fixed a bug where holding SHIFT while drawing a line in Mandala mode did not force the line to be horizontal or vertical
- [Intersection Detection] Improved the intersection detection algorithm, especially for cases where shapes touch at a single point
I will continue improving Leathercraft CAD to make it a practical and easy-to-use CAD tool designed specifically for leather craft.
Thank you, as always, for your support and for using Leathercraft CAD.