Vector Field in Illustrator
Out of context: Reply #9
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- i_monk0
This isn't hard to do manually, just tedious:
If you want straight lines pointing to the same point, draw the lines radiating from there and then use a complex shape mask built on a grid to show/hide just the segments you want, or delete the parts of the lines you don't want to see.
If you want curving lines like the hub billboard above, it's a bit trickier but can be done with the Blend tool. First draw the curve you want everything to reference, moving from one corner or edge to the vortex, filling as much of the space as you can (e.g. start at the bottom left corner, curve it so it nearly touches the top, then curve down and around nearly touching the right side, then into the vortex somewhere near the middle). Lock the curve and build the grid you want to follow. Draw a straight line segment everywhere in the grid that overlaps the curve you drew, then draw line segments in ever grid space around the edges of the grid and rotate them in reference to the part of the curve in their column. A but of Blending between the edge segments and the curve segments should get you something close to the image above. Blend would also handle the colour transition.