[Arcade] Splitting intersecting line with created point feature

StefanAngerer

Hi everybody,

I am currently trying to develop an attribute rule that allowes me to split an intersecting line when creating a point feature on that specific line. As I only found a cut function that allows to cut a polyline with another polyline, my initial guess was to just creat a dummy line at the position of the point feature that helps me splitting the line. However that seems quite complicated for a seemingly easy task. Has anybody another approach or idea how i could solve that problem? Perhaps even without using Attribute Rules? 

Thanks in advance

Stefan!

MikeMillerGIS

An older version of the rule did use cut, if you are interested in the logic, it pasted it below.

 

function cut_line_at_point_cutter(line_feature, point_geometry) {
    var search = Extent(Buffer(point_geometry, .1, "meter"));
    var geo = Geometry(line_feature);
    var segment = Clip(geo, search)["paths"][0];
    // Rotate logic - https://stackoverflow.com/questions/45701615/how-can-i-rotate-a-line-segment-around-its-center-by-90-degrees
    // Start and end points of the line
    var x1 = segment[0]['x']
    var y1 = segment[0]['y']
    var x2 = segment[-1]['x']
    var y2 = segment[-1]['y']
    //find the center
    var cx = (x1 + x2) / 2;
    var cy = (y1 + y2) / 2;
    //move the line to center on the origin
    x1 -= cx;
    y1 -= cy;
    x2 -= cx;
    y2 -= cy;
    //rotate both points
    var xtemp = x1;
    var ytemp = y1;
    x1 = -ytemp;
    y1 = xtemp;
    xtemp = x2;
    ytemp = y2;
    x2 = -ytemp;
    y2 = xtemp;
    //move the center point back to where it was
    x1 += cx;
    y1 += cy;
    x2 += cx;
    y2 += cy;
    var cutter = Polyline({
        "paths": [
            [
                [x1, y1],
                [x2, y2]
            ]
        ],
        "spatialReference": {
            "wkid": geo.spatialReference.wkid
        }
    });
    var new_lines = Cut(line_feature, cutter);
    var line_a = Dictionary(Text(new_lines[0]))
    var line_b = Dictionary(Text(new_lines[1]))
    line_a['paths'] = remove_vertex(line_a['paths'])
    line_b['paths'] = remove_vertex(line_b['paths'])
    return [Polyline(line_a), Polyline(line_b)]
}