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new fill technique

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This commit is contained in:
Stewart Allen 2018-02-11 16:18:46 -05:00
commit e19f64c1a2
2 changed files with 60 additions and 19 deletions
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27
js/geo-polygons.js
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@ -621,6 +621,7 @@ var gs_base_polygons = exports;
// store origin as start/affinity point for fill
rayint.origin = newPoint(start.x, start.y, start.z);
rayint.mindex = Infinity;
for (i = 0; i < steps; i++) {
var p1 = newPoint(start.x - raySlope.dx * 1000, start.y - raySlope.dy * 1000, zpos, NOKEY),
@ -628,7 +629,7 @@ var gs_base_polygons = exports;
// store origin line for distance tests in print
if (i == 0) rayint.oline = [p1,p2];
lines.push([p1,p2]);
start.x += stepX;
start.y += stepY;
@ -637,6 +638,8 @@ var gs_base_polygons = exports;
clip.AddPaths(lines, ptyp.ptSubject, false);
clip.AddPaths(toClipper(polys), ptyp.ptClip, true);
lines = [];
if (clip.Execute(ctyp.ctIntersection, ctre, cfil.pftNonZero, cfil.pftEvenOdd)) {
ctre.m_AllPolys.forEach(function(poly) {
if (minlen || maxlen) {
@ -644,12 +647,28 @@ var gs_base_polygons = exports;
if (minlen && plen < minlen) return;
if (maxlen && plen > maxlen) return;
}
poly.m_polygon.forEach(function(point) {
rayint.push(newPoint(null,null,zpos,null,point));
});
var p1 = newPoint(null,null,zpos,null,poly.m_polygon[0]);
var p2 = newPoint(null,null,zpos,null,poly.m_polygon[1]);
var od = Math.round(rayint.origin.distToLine(p1,p2) / spacing);
rayint.mindex = Math.min(rayint.mindex, od);
lines.push([p1, p2, od]);
// poly.m_polygon.forEach(function(point) {
// rayint.push(newPoint(null,null,zpos,null,point));
// });
});
}
lines.sort(function(a,b) {
return a[2] - b[2];
})
lines.forEach(function(line, index) {
line[0].index = line[2];
line[1].index = line[2];
rayint.push(line[0]);
rayint.push(line[1]);
})
return rayint;
}