Algorithm (Workflow)

This function, SGwebcamcover, is designed to create a 3D model of a webcam cover using Solid Geometry (SG) operations. The function is part of the SG-Library and is used for parametric design.

Input Parameters

• varargin: A variable-length input argument list. The function uses this to determine the depth of the webcam cover.

Algorithm Steps

1. Determine Depth: The function calls getfuncparams with a default value of 30. This value is used for new Logitech webcams, while a value of 22 is used for older models.
2. Create Coverplate: A box A is created with dimensions [50, 1.2, 30]. This represents the main coverplate of the webcam cover.
3. Create Arms:
   • B is a box with dimensions [5, dpth+1.2+1.5, 1.2], representing the arm that extends backwards.
   • C is a box with dimensions [5, 1.2, 20], representing the arm that extends downwards.
4. Position Arms:
   • B1 is positioned relative to A using SGtransrelSG to align the top, front, and left sides, creating the left arm.
   • B2 is similarly positioned to create the right arm.
   • C1 and C2 are positioned relative to B1 and B2 respectively, aligning the top, back, and right sides.
5. Concatenate Parts: The function concatenates all parts (A, B1, B2, C1, C2) into a single SG object using SGconcat.
6. Export Model: The model is rotated around the x-axis by pi radians and exported as an STL file using SGwriteSTL. The filename includes the depth value.
7. Plot Model: If no output is requested, the function plots the model using SGfigure and SGplotalpha.