🧭 How to Use
Drag NeedleDrag the needle tip to move the compass.
Drag PencilDrag the pencil tip to resize the radius.
Drag HingeDrag the top hinge to draw a circle arc.
LockClick needle tip to lock/unlock compass position & radius.
Compass SizeUse the slider at bottom to scale the entire compass (legs, handle, etc.) up or down.
RulerDrag body to move. Drag shaded ends to rotate.
All ToolsAll tools are active simultaneously — ruler, compass, pencil and line all work together.