Feature request #14920

[GPS Information Panel] Add vertex symbols in rubberband when we collect a polygon

Added by João Gaspar over 4 years ago. Updated over 3 years ago.

Status:Open
Priority:Normal
Assignee:-
Category:C++ plugins/GPS plugin
Pull Request or Patch supplied:No Resolution:
Easy fix?:No Copied to github as #:22871

Description

Is difficult understand when we work in the field with Tablet PC to see the first collected point of the polygon. Sometimes the result we add more than one vertex and we only see this behavior when we add the polygon.

History

#1 Updated by Steven Mizuno over 4 years ago

Here is how I see the issue:
  • the first vertex added doesn't show. This is because the track that would show is a line geometry, so it takes at least two vertices to draw. And there is no specific marker drawn for the points.
  • a second vertex added will allow the track line to be drawn.

I propose that a vertex marker be drawn at the GPS position when the "Add track point" button is clicked. The marker would not be persistent for each position, but would be drawn at each new position.

In other words, the marker would appear only at the most recently added vertex. My reasoning on this is that the markers might imply editability and many markers may become confusing.

Questions:
  • what shape should the marker have?
  • what color should it be?
  • what size should it be?

I consider that a cross shape is probably good, with the color taken from the track color and the size taken from the cursor size. This would minimize the need for more controls on an already crowded panel.

Note that the marker would not be drawn when points are automatically added.

#2 Updated by Giovanni Manghi over 3 years ago

  • Easy fix? set to No

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