defaultt,   You need two of each, one as the default appearance and one to enter the Knockout Group, and the one that serves as the mass object needs to be at the top (obvioulsy, since the others are behind it), in this case the black one; and all paths have a stroke and no fill.   You can use the following steps, making sure the black one is at the top:   1) For the black path, select and Ctrl/Cmd+C+F (hold Ctrl/Cmd and press C then F) to create a copy in front, then lock the copy in the Layers palette (with the Layer expanded); this is the selected path, so easy to find; 2) Select the unlocked original from 1), then switch from stroke to fill, then set the Opacity to 0 in the Transparency palette; 3) For the other paths (red and blue and whichever additional paths you wish), select and Ctrl/Cmd+C+B (hold Ctrl/Cmd and press C then B) to create a copy in back, then lock the copy in the Layers palette (with the Layer expanded); this is the selected path, so easy to find; 3) For each of the other paths, ClickDrag over it with the Direct Selection Tool and apply Dashed Line as desired (you can hide the locked duplicate to see); 4) Select all the non selected paths and Ctrl/Cmd to form the Group, then tick Knockout Group in the Transparency palette enough times until you have a full tick mark; 5) Unlock all locked paths in the Layers palette; now you are ready to move;   To move any of the path sets round freely:   6) With the Direct Selection Tool, Alt/OptionClickDrag (hold Alt/Option and ClickDrag) over the path set(s) you wish to move to select it, making sure to avoid selecting other path sets that need to stay in place, then ClickDrag the path set(s) by any segment/Anchor Point to move to the desired position.   In 6), you can select multiple path sets (such as the red and blue one, avoiding the black one), so they are moved in the same way.   If you are unable to select all path sets you wish to move in the same way at the same time in 6), you can use ShiftAlt/OptionClickDrag (hold both Shift and Alt/Option and ClickDrag) to select the path sets in multiple steps.   The Alt/Option lets you select whole paths.   The Shift lets you select more path sets together; you can skip it for the first set, but it is simpler and safer to use it throughout.   ... View more

Jules,   I agree with Bobby in the use of a combination of outer shape(s) and blends.   Another way to create the perspective tyre track impression while keeping the same proportion of widths of the (track/tread) lines and the gaps in between could be to start out with uniform blends of many thin lines between the outer shapes, then expand each blend, then delete lines within the desired width of the (track/tread) lines and join the ends of the remaining outer lines with narrower gaps in between.   ... View more

Jean Louis,   It is very simple if you actually do exactly that "un texte curviligne dans cercle".   Starting with a circle corresponding to the Baseline (no Baseline Shift), you can do it by using a negative Baseline Shift equalling the font size applied to a circle that is twice the font size larger.   In that case you can just create the first instance and then simply use Effect>Distort & Transform>Transform with a Rotation of 60 (or you can use 360/6 which gives full accuracy if you choose another number such as 7) and 5 Copies.   Below it is shown with 24pt font size in a 648pt circle (copy added in red) corresponding to an original circle of 600, 600 + 2x24 = 648pt, with Align to Center applied in the Paragraph palette.   Starting with a positive Baseline Shift as in your image, you can subtract that from the font size and apply to a circle that is twice that amount larger (such as 600 + 2x18 = 636pt from a Baseline Shift of 6pt).   Click to get closer ... View more

Diniz,   I presume you wish to be able to see the actual limits relative to (s)RGB on screen, and adapt to that; obviously you cannot see the opposite (smaller) parts elsewhere that go beyond (s)RGB.   You can submit a feature request, https://illustrator.uservoice.com/forums/333657-illustrator-desktop-feature-requests https://illustrator.uservoice.com/   If one is already submitted, you can join it.   ... View more