function mxVsdxGeometry(elem, parentGeo) {
                        var _this = this;
                        /*private*/ this.noFill = false;
                        /*private*/ this.noLine = false;
                        /*private*/ this.noShow = false;
                        /*private*/ this.noSnap = false;
                        /*private*/ this.noQuickDrag = false;
                        /*private*/ this.rows = null;
                        if (((elem != null && elem.nodeType == 1) || elem === null) && ((parentGeo != null && (parentGeo instanceof Array)) || parentGeo === null)) {
                            var __args = Array.prototype.slice.call(arguments);
                            this.index = 0;
                            this.noFill = false;
                            this.noLine = false;
                            this.noShow = false;
                            this.noSnap = false;
                            this.noQuickDrag = false;
                            this.rows = null;
                            this.index = 0;
                            (function () {
                                _this.index = _this.getIndex$org_w3c_dom_Element(elem);
                                if (parentGeo != null && _this.index < parentGeo.length) {
                                    _this.inheritGeo(/* get */ parentGeo[_this.index]);
                                }
                                _this.processGeoElem(elem);
                            })();
                        }
                        else if (((elem != null && (elem.nodeType == 1)) || elem === null) && parentGeo === undefined) {
                            var __args = Array.prototype.slice.call(arguments);
                            this.index = 0;
                            this.noFill = false;
                            this.noLine = false;
                            this.noShow = false;
                            this.noSnap = false;
                            this.noQuickDrag = false;
                            this.rows = null;
                            this.index = 0;
                            (function () {
                                _this.index = _this.getIndex$org_w3c_dom_Element(elem);
                                _this.processGeoElem(elem);
                            })();
                        }
                        else
                            throw new Error('invalid overload');
                    }
Specifies the color transparency used for characters in a text run.
The value is normalized such that a value of 1 corresponds to 100 percent.
A value of zero specifies that the color is completely opaque;
a value of one specifies that the color is completely transparent.