Contour Generator
Pattern Generator
Function Editor
Tutorial

SecuriDesign Tutorial: Lesson 3

Combining multiple elements

Simple rosettes and borders like those we worked with in the previous two lessons are not very useful in good secure documents. The design elements need to be more complex to prevent forgery and duplication. Fortunately SecuriDesign allows you to combine simple elements into much more complex shapes. In this lesson we'll learn how to create a compound rosette.

  1. Create a new document and set current units to millimeters.
  2. Create a circle using the Ellipse Tool. Set the size of the circle to 100 x 100 mm.
  3. Select the circle and start Contour Generator to generate the following 4 contour lines.
  4. To create Contour #1 enter the following values:
    • Function: Cos
    • Units: mm
    • Frequency: 8
    • Amplitude: 5
    • Offset: -35
  5. Create Contour #2 by changing the following values in the dialog:
    • Frequency: 4
    • Amplitude: 25
    • Offset: -15
  6. Create Contour #3 by changing the following values in the dialog:
    • Frequency: 8
    • Amplitude: 15
    • Offset: 0
  7. Create Contour #4 by changing the following values in the dialog:
    • Amplitude: 25
    • Offset: 8
  8. Finally close the dialog and the resulting drawing should look like this:

     
  9. Contour line #1 is the innermost curve, while contour #4 is the outmost one.
  10. Select contour #2 and then add #1 to selection by Shift-clicking it. With the two curves selected start Pattern Generator.
  11. Enter the following parameters:
    • Function: Cos
    • Frequency: 16
    • Amplitude: 90
    • Series: 8
    • Phase Offset: 20
    • Phase Coverage: 65
    • Outline Color: Green
  12. Click Create/Modify Pattern button and close the dialog.

  13. Select contours #2 and #3 and start Pattern Generator again. Enter the following parameters and create another pattern fill:
    • Series: 10
    • Outline Color: Red
  14. Close the dialog.

  15. Finally select the contours #3 and #4 (you might want to zoom in to select contour line #3). Start Pattern Generator once again and change the following values from their default values:
    • Function: Loop9
    • Frequency: 128
    • Series: 1
    • Outline Color: White
    • Background Color: Cyan
  16. Apply the pattern and close the dialog. Delete the original circle and the final rosette produced is the following:

You don't have to use Contour Generator to create envelope curves for Guilloche pattern created by Pattern Generator. You can also use CorelDRAW's symmetrical polygons to design complex shape quickly. Or just draw the curves by hand.

Let's create one more complex rosette.

  1. Create a new document and set current units to millimeters.
  2. Create a circle using the Ellipse Tool. Set the size of the circle to 100 x 100 mm.
  3. Create another circle and set its size to 15 x 15 mm. Align the two circles to their centers:

  4. Select the larger circle and start Contour Generator to generate the following 4 contour lines.
  5. Contour #1:
    • Function: Cos
    • Units: mm
    • Frequency: 12
    • Amplitude: -3
    • Offset: -36
  6. Click Create New Contour Curve button. Then without closing the dialog, change the following settings to create Contour #2:
    • Offset: -33
  7. Generate another contour line by clicking Create New Contour Curve.
  8. Create Contour #3:
    • Amplitude: -5
    • Offset: -22
  9. Create Contour #4:
    • Amplitude: -10
    • Offset: 0
  10. Close the dialog. The resulting design should be as this:

     
  11. Again, the innermost wavy curve is the contour #1, while the outmost one is contour #4.
  12. Now select the smaller circle that we created in step 3 and run Contour Generator again. Enter the following values in the dialog:
    • Function: Sin
    • Units: mm
    • Frequency: 3
    • Amplitude: 2
    • Offset: -6.5
  13. Generate the contour curve and close the dialog. You should obtain the following:

  14. Now selected the newly generated contour and the smaller circle and run Pattern Generator. Enter the following values:
    • Rows: 20
    • Function: Line
    • Series: 1
    • Offset: 50
    • Outline Color: Cyan
  15. Create the pattern and close the dialog. The resulting pattern is very similar to a blend between the two curves. However CorelDRAW's blend doesn't produce a good result in this particular case, so using SecuriDesign's algorithms provides better results:

     
  16. Now let's get back to the four contour curves we generated in steps 5-9. Select the smaller circle and contour #1 (selection sequence is important - select the circle first!). Launch Pattern Generator and change the following settings from their default values:
    • Function: Loop6
    • Frequency: 48
    • Amplitude: -100
    • Series: 1
    • Outline Color: Blue
  17. Generate the pattern and close the dialog. Now the inner part of the rosette will look like this:

     
  18. Select contour curves #1 and #2 and launch Pattern Generator again. Change the following settings:
    • Series: 10
    • Outline Color: Green
  19. Generate the pattern and close the dialog. Resulting rosette:

     
  20. Select contours #2 and #3. Run Pattern Generator once again.
  21. On the Pattern tab of the dialog make the following changes:
    • Frequency: 12
    • Series: 10
  22. On the Envelopes tab of the dialog change the following in Envelope 1 Settings:
    • Select Use The Following Settings option button
    • Function: Sin [Y]
    • Frequency: 12
    • Amplitude: 20
    • Phase Offset: 50
  23. Repeat the setting made on step 22 for Envelope 2 Settings group of controls.
  24. Generate the pattern. Now the central part of the rosette looks like this:

     
  25. Now select contours #3 and #4 (selection order is important! - select contour #3 first) and run Pattern Generator. Make the following changes to the settings in the dialog:
    • Function: Cos
    • Frequency: 3
    • Amplitude: 80
    • Series: 1
    • Phase Offset: 50
    • Offset: -10
  26. Generate the pattern and close dialog. In fact, the generated curve isn't actually a Guilloche fill pattern. We'll use it as a pattern envelope instead:

     
  27. Now select the newly generated curve and contour #3. Run Pattern Generator. Set the following settings:
    • Rows: 7
    • Function: Line
    • Series: 1
    • Offset: -50
    • Outline Color: Green
  28. Now set "Apply Properties For" to Individual Rows
  29. In "For" list select Row 1. For row #1 make the following changes in the dialog:
    • Function: Sin
    • Relative Height: 5
    • Series: 10
    • Offset: 0
    • Outline Color: Red
  30. Now in "For" list select Row 7 and duplicate the settings specified in step 29 to the row #7.
  31. Apply the pattern and close the dialog. The resulting pattern should be as follows:

     
  32. Finally, select the curve that was generated in step 25 and contour #4. Run Pattern Generator once again and specify the following setting in the dialog:
    • Series: 10
    • Outline Color: Blue
  33. Generate the pattern and close the dialog. Now our rosette is complete. You can delete the original large circle and enjoy the looks of your creation:

     

You can download this rosette as a PDF file and look at it closer.

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Copyright © 2002 by Alex Vakulenko. All rights reserved.
This page was last revised on 10/05/03.