updateProjectionMatrix method
void
updateProjectionMatrix(
)
override
Implementation
@override
void updateProjectionMatrix() {
var dx = (this.right - this.left) / (2 * zoom);
var dy = (this.top - this.bottom) / (2 * zoom);
var cx = (this.right + this.left) / 2;
var cy = (this.top + this.bottom) / 2;
var left = cx - dx;
var right = cx + dx;
var top = cy + dy;
var bottom = cy - dy;
if (view != null && view!["enabled"]) {
var scaleW = (this.right - this.left) / view!["fullWidth"] / zoom;
var scaleH = (this.top - this.bottom) / view!["fullHeight"] / zoom;
left += scaleW * view!["offsetX"];
right = left + scaleW * view!["width"];
top -= scaleH * view!["offsetY"];
bottom = top - scaleH * view!["height"];
}
projectionMatrix.makeOrthographic(left, right, top, bottom, near, far);
projectionMatrixInverse.copy(projectionMatrix).invert();
}