RenderinstructionIcon class

Rendering instruction for Flutter font-based icons on the map.

This class handles the rendering of vector icons from Flutter's icon fonts such as Material Icons. Unlike bitmap symbols, these icons are scalable vector graphics that maintain quality at all zoom levels.

Key features:

  • Vector-based icons from Flutter icon fonts
  • Reusable icons with unique identifiers
  • Rotation support with optional map alignment
  • Positioning control relative to anchor points
  • Support for both node (POI) and way (area) icons
Inheritance
Implemented types

Constructors

RenderinstructionIcon(int level)
Creates a new icon rendering instruction for the specified drawing level.

Properties

bitmapSrc ↔ String?
getter/setter pairinherited
boundary ↔ MapRectangle?
The boundary of this object in pixels relative to the center of the corresponding node or way. This is a cache and will be calculated by asking. Do NOT clone this.
getter/setter pairinherited
codePoint ↔ int
Unicode code point of the icon in the font family.
getter/setter pair
display ↔ MapDisplay
Display mode controlling when this instruction should be rendered.
getter/setter pairinherited
dy ↔ double
getter/setter pairinherited
fontFamily ↔ String
Font family name containing the icon glyphs.
getter/setter pair
hashCode → int
The hash code for this object.
no setterinherited
id ↔ String?
Unique identifier for this icon, allowing reuse across the theme.
getter/setter pair
level ↔ int
latefinalinherited
position ↔ MapPositioning
Positioning of the icon relative to its anchor point.
getter/setter pair
priority ↔ int
getter/setter pairinherited
rotateWithMap ↔ bool
if false (default) the symbol will always drawn in the same direction regardless of the map rotation. For example an exclamation symbol (!) will always have the dot points towards the bottom of the screen. If true the symbol rotates with the map.
getter/setter pairinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scale ↔ Scale
getter/setter pairinherited
serial → int
finalinherited
theta ↔ double
Rotation angle of the icon in radians.
getter/setter pair

Methods

baseSrcMixinClone(BaseSrcMixin base) → void
inherited
baseSrcMixinScale(BaseSrcMixin base, int zoomlevel) → void
inherited
bitmapSrcMixinClone(BitmapSrcMixin base) → void
inherited
bitmapSrcMixinScale(BitmapSrcMixin base, int zoomlevel) → void
inherited
bitmapSrcMixinToString() → String
inherited
forZoomlevel(int zoomlevel, int level) → RenderinstructionIcon
Creates a zoom level specific copy of this icon instruction.
override
getBitmapColor() → int
inherited
getBitmapHeight() → int
inherited
getBitmapWidth() → int
inherited
getBoundary(RenderInfo<Renderinstruction> renderInfo) → MapRectangle
Returns the boundary of this object around the center of the area or the poi. If the boundary cannot determined exactly we need to estimate it. This method is used only if the renderinstruction adds itself to label or clash (see LayerContainer)
override
getType() → String
Returns the type identifier for this rendering instruction.
override
matchNode(LayerContainer layerContainer, NodeProperties nodeProperties) → void
Checks the nodeProperties and adds itself to the layerContainer if there is something to draw.
override
matchWay(LayerContainer layerContainer, WayProperties wayProperties) → void
Checks the wayProperties and adds itself to the layerContainer if there is something to draw.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
parse(XmlElement rootElement) → void
renderinstructionScale(Renderinstruction base, int zoomlevel) → void
Scales rendering parameters based on zoom level and base instruction.
inherited
secondPass(SymbolSearcher symbolSearcher) → void
Captions needs to find their assigned symbol to correctly render themself around the symbol. After all rules has been created a second pass is executed where captions are able to find their assigned symbol.
inherited
setBitmapColorFromNumber(int color) → void
inherited
setBitmapHeight(int bitmapHeight) → void
inherited
setBitmapMinZoomLevel(int bitmapMinZoomLevel) → void
inherited
setBitmapPercent(int bitmapPercent) → void
inherited
setBitmapSrc(String bitmapSrc) → void
inherited
setBitmapWidth(int bitmapWidth) → void
inherited
setDy(double value) → void
inherited
setScaleFromValue(String value) → void
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited