Fix your Mac OS X version in your forum signature in User Control Panel → Profile → Edit Signature.davidlaing wrote:I have MAC OS-X 10.9.5.
See Help → Index → combining;draw objects and read about Modify → Shapes, especially Subtract.davidlaing wrote:How can I access an eraser? I want to erase some sectors of a circle
Here's what I would have done for the bicarbonate on the left.davidlaing wrote:Remove 8 short lines connecting large concentric circles to rectangles with rounded corners, either side of graphic. leaving only short lines in center between rectangles with rounded corners and concentric, flanking, arcuate segments.
You seem to have figured out how to add arrows. I only added one.davidlaing wrote:Addition of 24 arrowheads to line segments (various orientations)
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