Fascinating, I've never seen this method fully explained. I really like it, and will try it out on my sketchpad some time.
A few critiques though, if I may?
The flow is reversed partway through the steps. In other words, you start with Step 1 then show a diagram. Then the diagram following Step 3 also includes constructions directed from Step 4, which I found a bit disorienting at first. I figured it out eventually, it was just inconsistent, and threw me off. It helped that I've had exposure to this before, but for the newly initiated, this might contribute complexity to this already complex topic.
Also, although you usefully color code each of the construction lines, you only refer to their names in your instructions. I would suggest labeling them on the diagrams in which they are newly introduced, or else putting parenthetical references to the color when you refer to the line name for the first time. For instance, in Step 4, "Converge lines (black) from the measurement marks on the ground line to the vanishing point." (Note that later you refer to the "convergence lines", but you only imply their name in Step 4). Alternatively, perhaps you could have a legend somewhere indicating which colors are which line types?
Thanks for the input. I was wondering about the step sequencing too but I kept it. I wasn't aware that the flow was reversed, though? I thought all the steps were below their respective diagrams?
On step 1 the diagram is the blue line above, it is not a divider.
I will make the name also color coated as well, sounds more useful. I figure a legend won't be necessary as long as they are color coated. Hmm...
A few critiques though, if I may?
The flow is reversed partway through the steps. In other words, you start with Step 1 then show a diagram. Then the diagram following Step 3 also includes constructions directed from Step 4, which I found a bit disorienting at first. I figured it out eventually, it was just inconsistent, and threw me off. It helped that I've had exposure to this before, but for the newly initiated, this might contribute complexity to this already complex topic.
Also, although you usefully color code each of the construction lines, you only refer to their names in your instructions. I would suggest labeling them on the diagrams in which they are newly introduced, or else putting parenthetical references to the color when you refer to the line name for the first time. For instance, in Step 4, "Converge lines (black) from the measurement marks on the ground line to the vanishing point." (Note that later you refer to the "convergence lines", but you only imply their name in Step 4). Alternatively, perhaps you could have a legend somewhere indicating which colors are which line types?
On step 1 the diagram is the blue line above, it is not a divider.
I will make the name also color coated as well, sounds more useful. I figure a legend won't be necessary as long as they are color coated. Hmm...