Algorithm (Workflow)

This algorithm creates a 3D solid volume logo with a text string. It is part of the VLFL-Library and was developed by Tim Lueth. The function is designed to generate a solid object with a string on top.

Input Parameters

• VStr: A text string that will be used to create the logo. If no input is provided, the default value is 'VLFL-Lib V1.8'.

Output Results

• XVL: Vertex List of the created 3D object.
• XFL: Face List of the created 3D object.
• I: Image of the created 3D object.

Algorithm Steps

1. Initialize the text string VStr with a default value. If an argument is provided, use it instead.
2. Close all existing figures to start fresh.
3. Create two circles using the PLcircle function. The first circle PLA has a radius of 40*sqrt(2) and 4 points. The second circle PLB has a radius of 20*sqrt(2) and 24 points, and is translated by [30 0].
4. Plot the circles PLA and PLB using CPLplot with different colors and line widths.
5. Close all figures again and perform a polygon boolean operation 'xor' on PLB and PLA to create a new polygon CPL.
6. Create a solid geometry B from CPL with a height of 5 using SGofCPLz.
7. Plot the solid geometry B with white color and set the view to axis equal and view(-30,30).
8. Use VLFLplotlight to add lighting to the plot.
9. Create a text image L using VLFLtextimage with parameters VStr, 0.5, 0, 120, 20, 10 and transform it using SGtrans0.
10. Set the color and transparency of SGA (the text object) to red and 0.8, respectively.
11. Align SGA on top of SGB (the base object) using SGalignleft and SGontop with a vertical offset of -1.1.
12. Set the color and transparency of SGB to yellow and 0.9, respectively.
13. Create a new figure using SGfigure, remove the axis, and plot the combined objects SGA and SGB.
14. Set the view to view(-10,70).
15. Extract the vertex list XVL and face list XFL from L.
16. Capture the current figure as an image I using getframe.
17. Close all figures and display the captured image using image(I.cdata).