Commit Graph

6 Commits

Author SHA1 Message Date
Kenny
e2d252a6d5 pre-allocate list of known size 2020-07-20 10:12:29 -07:00
Kenny
efeae0d84f fix 3169: Polygon.points property
The getter for vectorio.Polygon#points was not updated with the data type change of the stored points list.

This moves the implementation to shared_module and updates the data type to reflect the actual state.
2020-07-19 12:27:35 -07:00
Diego Elio Pettenò
dd5d7c86d2 Fix up end of file and trailing whitespace.
This can be enforced by pre-commit, but correct it separately to make it easier to review.
2020-06-03 10:56:35 +01:00
warriorofwire
dde66cadde remove a duplication in polygon.c 2020-05-18 13:32:06 -07:00
warriorofwire
4bbb80e31a vectorio: speed up polygon
This change takes polygon from 126k pixels per second fill to 240k pps fill
  on a reference 5 point star 50x66px polygon, updating both location and shape
  at 10hz.  Tested on an m4 express feather.

As a curiosity, the flat-out fill rate of a shape whose get_pixel is `return 0;`
  fills just shy of 375k pixels per second.
2020-05-18 13:32:06 -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