V4.1 Patched Geometry

1. Geometry

Windows/Mac/iPad/Android Pad/iOS/Android：
This feature can be configured based on the institution's needs. If required, institutions can apply for configuration through Neukol customer service.

1.1 Open Geometry

• Instructor/Assistant clicks on Control Bar - Toolbox
• Select "Geometry" within the toolbox.

1.2 Select Geometry

• Available shapes include: Line, Arrow, Triangle, Right Triangle, Isosceles Triangle, Equilateral Triangle, Quadrilateral, Rectangle, Square, Rhombus, Parallelogram, Trapezoid, Right-angled Trapezoid, Isosceles Trapezoid, Circle, Sector, Cube, Cone, Cylinder.
• The color, line thickness, dashed or solid lines, and fill of the shapes are consistent with the styles of the toolbar pen.
• Selected shapes can be displayed on the blackboard and course materials.

1.3 Adjust Geometry

• Instructors, assistants, and students with editing permissions can adjust geometric shapes.
• Upon selecting a geometric shape, the [Rotate], [Vertex], and [Delete] buttons will appear around it.
• Users can drag the [Vertex] to adjust the shape while maintaining its features (right angle, equilateral, isosceles, etc.).
• Users can select the lines of the geometry and drag to adjust its position.

2. Adjusting Blackboard Element Rotation

Windows/Mac/iPad/Android Pad/iOS/Android：
Shapes/images on the blackboard/course materials support rotation and scaling adjustments.

2.1 Element Rotation

• Elements: Line, Ellipse, Rectangle, Geometric Shapes (except Circle, Sector, Cube, Cone, Cylinder) all support rotation.
• Instructors, assistants, and students with editing permissions can rotate elements.
• When an element is selected, a [Rotate] button will appear directly above it.
• By pressing and dragging the [Rotate] button, the element will rotate in the direction of the drag (0~360 degrees).

Note: During rotation, the central point of the element remains unchanged.

2.2 Element Shape Adjustment

• Elements: Line, Rectangle, Ellipse, and Geometric Shapes support shape adjustments.
• Instructors, assistants, and students with editing permissions can adjust the shape of elements.
• When an element is selected, [Vertices] will appear around it.
• Users can drag the [Vertices] to adjust the shape while maintaining its inherent features (right angle, equilateral, isosceles, etc.).

2.3 Element Operations

• When the [Image] element is selected individually, you can scale, delete, and move its position.
• When the [Line, Rectangle, Ellipse, Geometry (excluding Circle, Sector, Cube, Cone, Cylinder)] element is selected individually, you can rotate, adjust the shape, delete, and move its position.
• When the [Geometry (Circle, Sector, Cube, Cone, Cylinder)] element is selected individually, you can adjust the shape, delete, and move its position.
• When the [Pen] element is selected individually, you can delete and move its position.
• When multiple elements are selected, you can delete and move their positions.

3. Shape Fill

Windows/Mac/iPad/Android Pad/iOS/Android：
This feature can be configured based on the institution's needs. Institutions requiring this feature can apply for configuration through Neukol customer service.

• Elements: Rectangle, Ellipse, and Geometry support fill effect toggling.
• Instructors, assistants, and students with editing permissions can toggle the fill effect for shapes.
• After users switch to solid fill, drawing rectangles, ellipses, and geometry will display the shapes with a solid effect.
• The color of the shape fill matches its border.