svg names in PShape

Core Library Questions

kashken

in Core Library Questions • 2 years ago

I have an svg file with the following as an example of an entry:

2 questions:

1. Can I access child elements by name via PShape?

2. How do I access the data elements above (id, pop1990, area, etc) via PShape?

Replies(3)

PhiLho

1. Use getChiild("name"). getName() is also useful.
2. I think you cannot. AFAIK, PShapeSVG just ignores the unknown attributes, including some actual SVG ones!
You might have to parse again the file in XML mode...

kashken

Re: svg names in PShape

2 years ago

getName returns null.

The childCount is 1 and the SVG file includes all 50 states + D.C. (each in <g ... /g>).

When I use getChild(0), it just returns the EXACT shape that I made the call to (also has null getName result).

Given that PShape is in such poor shape (PShape = poor shape), what is necessary to define shapes with a parent and children (with names) where a child subshape can be pulled out and used separately (that is, parent = all 50 states, children = 1 shape for each of the 50 states)?

kashken

Re: svg names in PShape

2 years ago

Okay. After spending some time in XML hell and viewing other SVG files, I determined that the SVG in question had 1 child, but that child was parent to 50 children (the 50 states). The real problem with this SVG is that 'id' was absent from the top level parent and its child, but each of the 50 states was named. When I manually edited the top level parent and inserted a name, plus put a name ('id' parameters) on the single child of the top level parent, things got a lot clearer.

I can now pull the child for each state by name and draw them independently.

Thanks for your response.

Top Reply