function PinBuilder() {
  this._cache = {};
}
A utility class for generating custom map pins as canvas elements.
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<div align='center'>
<img src='Images/PinBuilder.png' width='500'/><br />
Example pins generated using both the maki icon set, which ships with Cesium, and single character text.
</div>

@alias PinBuilder
@constructor

@demo {@link https://sandcastle.cesium.com/index.html?src=Map%20Pins.html|Cesium Sandcastle PinBuilder Demo}