layer appearance/disappearance in each stop (without duplicating stops to fake-animate)

[aprossi]

In v3 we have an order for layers (sorry, still markdown..), this states that layers are on the top ("1") or below (">1"), e.g. a polygon map of geologic units is 3, then linear features 2, and 1 (example of Hokusai).

v2

• layer:
  • path:
  • type:

v3

• layer:
  • order
  • path:
  • type:
  • credits:

What would be needed in v4 is something to handle the appearance/disappearance order (and eventual co-exist), like in sub-steps.

The alternative quick and dirty solution would be to create duplicate of layers with the selective removal/addition of layers that need to appear/disappear, with as many duplicates as the sub-steps. This would have the disadvantage of creating TOC duplicates unless the change is at title/subtitle level. Working at subtitle level would allow for making duplicates but only refer to the top-level title. In fact this solution might be easier to implement and more robust, also less cumbersome wrt to data entry.

[aprossi]

This could work like that:

Currently, in v3

Stop 1

• title: "Why mapping Mars today?"

---

potentially, v4

Stop 1

Step 1

• title: "Why mapping Mars today?"

• layer ... <a certain configuration of layers

---

Step 2

< if it exists, another configuration of layers (or anythign else), basically a duplicated, slighly modified - in any part, also text if needed - of a stop, with an individual entry in the TOC and marker, though

[aprossi]

In fact, steps could be within the layer only, but then one would loose teh flexibility of changing text/imagery for sub-stops (steps).

[aprossi]

this is implemented in v5/v6, closing