Members
backgroundImage
Properties:
| Name | Type | Description |
|---|---|---|
backgroundImage |
Object | null | The background image of the scene, null if not set. |
- Source:
canvas
Properties:
| Name | Type | Description |
|---|---|---|
canvas |
Object | The canvas of the scene. |
- Source:
ctx
Properties:
| Name | Type | Description |
|---|---|---|
ctx |
Object | The context of the canvas. |
- Source:
ctxVirtual
Properties:
| Name | Type | Description |
|---|---|---|
ctxVirtual |
CanvasRenderingContext2D | The virtual context for color adjustment. |
- Source:
isSVG
Properties:
| Name | Type | Description |
|---|---|---|
isSVG |
boolean | Whether the canvas is being exported to SVG. |
- Source:
lengthScale
Properties:
| Name | Type | Description |
|---|---|---|
lengthScale |
number | The scale factor of the length units of the scene. |
- Source:
origin
Properties:
| Name | Type | Description |
|---|---|---|
origin |
Object | The origin of the scene in the viewport. |
- Source:
scale
Properties:
| Name | Type | Description |
|---|---|---|
scale |
number | The scale factor (the viewport physical pixel per internal length unit) of the scene. |
- Source:
Methods
applyColorTransformation()
Apply color transformation to simulate 'lighter' composition with less color saturation.
- Source:
drawCircle(c, coloropt)
Draw a circle.
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
c |
Circle | |||
color |
String |
<optional> |
'black' |
- Source:
drawLine(l, coloropt)
Draw a line.
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
l |
Line | |||
color |
Array.<number> |
<optional> |
[0, 0, 0, 1] |
- Source:
drawPoint(p, coloropt, sizeopt)
Draw a point.
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
p |
Point | |||
color |
Array.<number> |
<optional> |
[0, 0, 0, 1] | |
size |
number |
<optional> |
5 |
- Source:
drawRay(r, coloropt, showArrowopt, lineDashopt)
Draw a ray.
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
r |
Line | |||
color |
Array.<number> |
<optional> |
[0, 0, 0, 1] | |
showArrow |
boolean |
<optional> |
true | |
lineDash |
Array.<number> |
<optional> |
[] |
- Source:
drawSegment(s, coloropt, showArrowopt, arrowPositionopt)
Draw a segment.
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
s |
Line | |||
color |
Array.<number> |
<optional> |
[0, 0, 0, 1] | |
showArrow |
boolean |
<optional> |
true | |
arrowPosition |
number |
<optional> |
0.67 | Position of arrow along line (0 to 1, where 0 is at p1 and 1 is at p2) |
- Source:
rgbaToCssColor(rgba) → {string}
Converts an RGBA array [R, G, B, A] with values between 0 and 1 to a CSS color string.
Parameters:
| Name | Type | Description |
|---|---|---|
rgba |
Array.<number> | The RGBA array. |
- Source:
Returns:
The CSS color string.
- Type
- string