In this article, we are going to learn how to fix proportions (SHIFT key) and use offset (ALT key) to easily make a beautiful shape, as below:
Draw an (inner) circle 20px by 20px, then press SHIFT and ALT to resize the circle to the dotted line to 70px by 70px. Effectively, SHIFT key ensures that our resizing is proportional in width and height, and ALT key ensures that our resizing is centered.
Once we have completed the above, draw 3 more circles and a rectangle as shown below. The box should have a width of 2.5px and we use the Shape Properties dialog to position it at the center of the circle. To show the Shape Properties dialog, we click on View | Show Properties.
The red circle is there so we can rotate the entire group at its center, indicated by the blue circle. We can now group all the shapes above, but minus the blue circle. Once grouped, press Ctrl-C to copy the group then Ctrl-V to paste it.
Notice that the pasted group will be offset to the right bottom of the original, and we will need to press LEFT and UP arrow keys to reposition it back at original position.
What we wanted to do now, is to rotate the group, but since the flower has 5 petals, we must rotate by 360 / 5 = 72 degrees. Fortunately, the Shape Properties dialog accepts expressions, so we click on the Angle field in Shape Properties and type in "360 / 5" and Vecta will automatically calculate for us the angle.
Because we need all five petals, we shall duplicate the group again and repeat the above process until we have all 5 petals.
It's time to select all the shapes, and then right click, Operations | Ungroup. This will ungroup all our shapes, and we will need to remove all shapes that is red.
Now it looks more like the flower that we want to draw. Select all the shapes indicated in blue, right click and select Operations | Union. This will ensure our stems are all a single shape.
Now that we have the stem done, it's time to union our petals. Select the 5 black circles, right click and then sleect Operations | Union.
There is a star in the middle of our flower, and we do not want that. Therefore, we draw a rectangle in the middle and union again.
Now that we have our flower done, it's time to remove the stroke color and insert some nice fill. Because we perform operations on the petals last, so it will be in front, and we will need to select it and right click, then Arrange | Send to back.
We have performed many shape operations to create our flower, but bear in mind that these operations works much better when the size of the shape is larger, but not very well when the shapes are very small. This is due to calculations made during shape operations, and for small shapes, the inaccuracies encountered will cause the operations to incorrectly report if a shape is inside another, and thus fail. Therefore, when performing shape operations always remember to make your shape larger.