C#: make one with the Geom.Nodes.Polygon2D() factory, then set and read its properties
by name with Set and Get, or in the Inspector, where the node
is GeomPolygon2D.
A filled polygon with any number of points, on the canvas.
For an outline, draw the points as a closed GeomPolyline2D.
From code
The code used to generate this page's thumbnail.
# Concave is fine.
var poly := GeomPolygon2D.new()
poly.position = c
poly.points = PackedVector2Array([
Vector2(0, -r), Vector2(r * 0.34, -r * 0.3),
Vector2(r, -r * 0.2), Vector2(r * 0.45, r * 0.35),
Vector2(r * 0.6, r), Vector2(0, r * 0.52),
Vector2(-r * 0.6, r), Vector2(-r * 0.45, r * 0.35),
Vector2(-r, -r * 0.2), Vector2(-r * 0.34, -r * 0.3)])
poly.color = AMBER
add_child(poly)// Concave is fine.
var poly = Geom.Nodes.Polygon2D();
poly.Position = c;
poly.Set("points", new Vector2[] {
new Vector2(0, -r), new Vector2(r * 0.34f, -r * 0.3f),
new Vector2(r, -r * 0.2f), new Vector2(r * 0.45f, r * 0.35f),
new Vector2(r * 0.6f, r), new Vector2(0, r * 0.52f),
new Vector2(-r * 0.6f, r), new Vector2(-r * 0.45f, r * 0.35f),
new Vector2(-r, -r * 0.2f), new Vector2(-r * 0.34f, -r * 0.3f)});
poly.Set("color", AMBER);
AddChild(poly);Properties
| BlendMode | blend_mode | Geom.BLEND_TRANSPARENTGeom.BlendMode.Transparent |
| Color | color | Color(1, 1, 1, 1) |
| bool | convex_only | false |
| Resource | fill | null |
| PackedVector2Array | points | PackedVector2Array(0, -90, -90, -18, -45, 90, 45, 90, 90, -18) |
Enumerations
enum Geom.BlendMode
- Geom.BLEND_OPAQUEGeom.BlendMode.Opaque = 0
- Sorts by position. Hard edges: no anti-aliasing, and alpha is ignored.
- Geom.BLEND_TRANSPARENTGeom.BlendMode.Transparent = 1
- Standard alpha blending. The default.
- Geom.BLEND_ADDITIVEGeom.BlendMode.Additive = 2
- Adds this color to what is behind.
- Geom.BLEND_MULTIPLYGeom.BlendMode.Multiply = 3
- Multiplies what is behind by this color.
- Geom.BLEND_SUBTRACTGeom.BlendMode.Subtract = 4
- Subtracts this color from the background.
- Geom.BLEND_TRANSPARENT_DEPTHGeom.BlendMode.TransparentDepth = 5
- Transparent, but writes depth, so shapes with alpha 1 sort by position with anti-aliased edges. A translucent color behaves like Transparent.
Property descriptions
BlendMode blend_mode = Geom.BLEND_TRANSPARENTGeom.BlendMode.Transparent
How the shape blends with what is behind it. Transparent Depth acts like Transparent on the canvas.
Color color = Color(1, 1, 1, 1)
Fill color.
bool convex_only = false
Skip the work a concave shape needs. Cheaper, but a concave polygon then draws wrong.
Resource fill = null
A gradient in place of color. Takes GeomFillLinear.
PackedVector2Array points = PackedVector2Array(0, -90, -90, -18, -45, 90, 45, 90, 90, -18)
The corners, in order. Fewer than three draws nothing.