Commit Graph

5 Commits

Author SHA1 Message Date
warriorofwire
fd94c08cf4 add performance measurement to VectorShape 2020-05-12 11:49:15 -07:00
warriorofwire
58c8e00745 vectorio: clean up after group removal
VectorShape tells the Group to redraw whatever it left behind when it is removed now.
2020-05-10 15:36:23 -07:00
warriorofwire
6660311a96 vectorio: respect display transpose and mirror.
VectorShape now just uses the Group's and Display's absolute transforms.
2020-05-10 14:18:13 -07:00
warriorofwire
4086600b61 vectorio: switch per-shape transform to Display
Rather than maintain a transform per-shape, we'll just use whatever
  settings are on the Display.  Currently only transpose is done.
2020-05-09 22:15:51 -07:00
warriorofwire
206d0e598a Add vectorio: for drawing shapes
vectorio builds on m4 express feather

Concrete shapes are composed into a VectorShape which is put into a displayio Group for display.

VectorShape provides transpose and x/y positioning for shape implementations.

Included Shapes:

* Circle
  - A radius; Circle is positioned at its axis in the VectorShape.
  - You can freely modify the radius to grow and shrink the circle in-place.

* Polygon
  - An ordered list of points.
  - Beteween each successive point an edge is inferred.  A final edge closing the shape is inferred between the last
    point and the first point.
  - You can modify the points in a Polygon.  The points' coordinate system is relative to (0, 0) so if you'd like a
      top-center justified 10x20 rectangle you can do points [(-5, 0), (5, 0), (5, 20), (0, 20)] and your VectorShape
      x and y properties will position the rectangle relative to its top center point

* Rectangle
  A width and a height.
2020-05-09 15:38:22 -07:00