public static Paths offset(Paths paths, float offset)
{
// Set cleaning precision
IntRect brect = Clipper.GetBounds(paths);
int cleanPolygonPrecision = 2;
if ((brect.right - brect.left) > 10000)
{
cleanPolygonPrecision = 30;
}
// Clean...
AXClipperLib.JoinType jt = AXClipperLib.JoinType.jtSquare;
paths = AXGeometryTools.Utilities.cleanPaths(paths, cleanPolygonPrecision);
Paths resPaths = new Paths();
AXClipperLib.PolyTree resPolytree = null;
// OFFSETTER
ClipperOffset co = new ClipperOffset();
co.MiterLimit = 2.0f;
foreach (Path path in paths)
{
co.Clear();
resPolytree = null;
co.AddPath(path, jt, AXClipperLib.EndType.etClosedPolygon); //JoinType.jtSquare, AXClipperLib.EndType.etClosedPolygon);
// this resPolytree has transformed curves in it
resPolytree = new AXClipperLib.PolyTree();
co.Execute(ref resPolytree, (double)(offset * AXGeometryTools.Utilities.IntPointPrecision));
resPaths.AddRange(Clipper.ClosedPathsFromPolyTree(resPolytree));
}
return(resPaths);
}
public static void thickenAndOffset(ref AXParameter sp, AXParameter src)
{
if (sp == null || src == null)
{
return;
}
//sp.polyTree = null;
float thickness = sp.thickness;
float roundness = sp.roundness;
float offset = sp.offset;
bool flipX = sp.flipX;
//Debug.Log(sp.parametricObject.Name + "." + sp.Name +"."+ sp.offset);
//bool srcIsCC = src.isCCW();
Paths subjPaths = src.getClonePaths();
if (subjPaths == null)
{
return;
}
// FLIP_X
if (flipX)
{
//Debug.Log(subjPaths.Count);
//AXGeometryTools.Utilities.printPaths(subjPaths);
subjPaths = AXGeometryTools.Utilities.transformPaths(subjPaths, Matrix4x4.TRS(Vector3.zero, Quaternion.identity, new Vector3(-1, 1, 1)));
sp.transformedControlPaths = AXGeometryTools.Utilities.transformPaths(sp.transformedControlPaths, Matrix4x4.TRS(Vector3.zero, Quaternion.identity, new Vector3(-1, 1, 1)));
}
// SYMMETRY
if (sp.symmetry)
{
if (subjPaths != null && subjPaths.Count > 0)
{
for (int i = 0; i < subjPaths.Count; i++)
{
Path orig = subjPaths[i];
Path sym = new Path();
float seperation = sp.symSeperation * AXGeometryTools.Utilities.IntPointPrecision;
float apex = .1f * seperation;
for (int j = 0; j < orig.Count; j++)
{
sym.Add(new IntPoint(orig[j].X + seperation / 2, orig[j].Y));
}
// midpoint. slightly raised
sym.Add(new IntPoint(0, orig[orig.Count - 1].Y + apex));
for (int j = orig.Count - 1; j >= 0; j--)
{
sym.Add(new IntPoint(-orig[j].X - seperation / 2, orig[j].Y));
}
subjPaths[i] = sym;
}
}
}
AX.Generators.Generator2D gener2D = sp.parametricObject.generator as AX.Generators.Generator2D;
if (subjPaths != null && gener2D != null && (gener2D.scaleX != 1 || gener2D.scaleY != 1))
{
sp.transformedButUnscaledOutputPaths = AX.Generators.Generator2D.transformPaths(subjPaths, gener2D.localUnscaledMatrix);
}
else
{
sp.transformedButUnscaledOutputPaths = null;
}
//cleanPolygonPrecision
IntRect brect = Clipper.GetBounds(subjPaths);
if ((brect.right - brect.left) < 10000)
{
cleanPolygonPrecision = 2;
}
else
{
cleanPolygonPrecision = 30;
}
//Debug.Log("cleanPolygonPrecision="+cleanPolygonPrecision);
/*
* if (offset_p.FloatVal == 0 && wallthick_p.FloatVal == 0)
* {
* sp.polyTree = src.polyTree;
* sp.paths = src.paths;
* return;
* }
*
*/
//sp.polyTree = null;
//Debug.Log("new count a = " + subjPaths[0].Count);
bool hasOffset = false;
sp.hasThickness = false;
Paths resPaths = new Paths();
AXClipperLib.PolyTree resPolytree = null;
ClipperOffset co = new ClipperOffset();
//co.ArcTolerance = sp.arcTolerance;
float smooth = (float)(120 / (sp.arcTolerance * sp.arcTolerance));
float smoothLOD = ((smooth - .048f) * sp.parametricObject.model.segmentReductionFactor) + .048f;
co.ArcTolerance = (float)(Mathf.Sqrt(120 / smoothLOD));
co.MiterLimit = 2.0f;
//if (offset != 0)
// 1. Offset? Can't offset an open shape
if (sp.shapeState == ShapeState.Closed && (sp.endType == AXClipperLib.EndType.etClosedLine || sp.endType == AXClipperLib.EndType.etClosedPolygon))
{
//AXClipperLib.JoinType jt = (sp.endType == AXClipperLib.EndType.etClosedLine) ? JoinType.jtMiter : sp.joinType;//output.joinType;
AXClipperLib.JoinType jt = (sp.parametricObject.model.segmentReductionFactor < .15f) ? AXClipperLib.JoinType.jtSquare : sp.joinType; //output.joinType;
//Debug.Log ("sp.endType="+sp.endType+", jt="+jt);
if (roundness != 0)
{
// reduce
co.Clear();
if (subjPaths != null)
{
co.AddPaths(AXGeometryTools.Utilities.cleanPaths(subjPaths, cleanPolygonPrecision), jt, AXClipperLib.EndType.etClosedPolygon); //JoinType.jtSquare, AXClipperLib.EndType.etClosedPolygon);
}
co.Execute(ref subjPaths, (double)(-roundness * AXGeometryTools.Utilities.IntPointPrecision));
}
offset += roundness;
if (subjPaths != null)
{
subjPaths = Clipper.SimplifyPolygons(subjPaths, PolyFillType.pftNonZero);
}
co.Clear();
hasOffset = true;
// if (offset != 0 || thickness == 0) { // --! PUC ** Removed because the pass thru was causing a problem with Instance2D of a ShapeMerger
// Do Offset
// = true;
if (subjPaths != null)
{
// After changes made mid April to allow for FlipX, this started doubling the localMatrix and thus became redundent, though not sure why.
//if (gener2D != null)
// sp.transformedAndScaledButNotOffsetdOutputPaths = AX.Generators.Generator2D.transformPaths(subjPaths, gener2D.localMatrix);
co.AddPaths(AXGeometryTools.Utilities.cleanPaths(subjPaths, cleanPolygonPrecision), jt, AXClipperLib.EndType.etClosedPolygon); //JoinType.jtSquare, AXClipperLib.EndType.etClosedPolygon);
// this resPolytree has transformed curves in it
resPolytree = new AXClipperLib.PolyTree();
co.Execute(ref resPolytree, (double)(offset * AXGeometryTools.Utilities.IntPointPrecision));
}
// }
if (thickness > 0)
{ // No offset, but is closed
sp.transformedAndScaledButNotOffsetdOutputPaths = null;
if (src.polyTree != null)
{
if (thickness > 0)
{
resPaths = subjPaths; // Clipper.PolyTreeToPaths(src.polyTree);
}
else
{
resPolytree = src.polyTree;
}
}
else
{
resPaths = subjPaths;
}
}
}
else
{
//resPolytree = src.polyTree;
if (src.polyTree != null)
{
if (thickness > 0)
{
resPaths = subjPaths; // Clipper.PolyTreeToPaths(src.polyTree);
}
else
{
resPolytree = src.polyTree;
}
}
else
{
resPaths = subjPaths;
}
}
// 2. Thickness?
//subjPaths = sp.getPaths();
if ((sp.endType != AXClipperLib.EndType.etClosedPolygon) && thickness > 0) //input.endType != AXClipperLib.EndType.etClosedPolygon) {
{
// this is a wall
if (resPaths != null && gener2D != null)
{
sp.transformedFullyAndOffsetdButNotThickenedOutputPaths = AX.Generators.Generator2D.transformPaths(resPaths, gener2D.localMatrix);
}
sp.hasThickness = true;
co.Clear();
if (resPolytree != null) // closed block has happened
{
co.AddPaths(AXGeometryTools.Utilities.cleanPaths(Clipper.PolyTreeToPaths(resPolytree), cleanPolygonPrecision), sp.joinType, sp.endType); //input.endType);
}
else if (resPaths != null)
{
co.AddPaths(AXGeometryTools.Utilities.cleanPaths(resPaths, cleanPolygonPrecision), sp.joinType, sp.endType); //input.endType);
}
resPolytree = new AXClipperLib.PolyTree();
co.Execute(ref resPolytree, (double)(thickness * AXGeometryTools.Utilities.IntPointPrecision));
}
else
{
sp.transformedFullyAndOffsetdButNotThickenedOutputPaths = null;
}
// 3. Update input data
//Debug.Log(sp.parametricObject.Name + "." + sp.Name + " here ["+hasOffset+"] " + (! sp.symmetry) + " " + (! flipX) + " " + (! hasOffset) + " " + (! hasThicken) + " " + (roundness == 0));
// SIMPLE PASSTHRU?
if (!sp.symmetry && !flipX && !hasOffset && !sp.hasThickness && roundness == 0)
{
// SIMPLE PASS THROUGH
sp.polyTree = src.polyTree;
sp.paths = src.paths;
}
else
{
if (resPolytree == null)
{
//sp.paths = resPaths; //Generator2D.transformPaths(resPaths, gener2D.localMatrix);
//if (Clipper.Orientation(resPaths[0]) != srcIsCC)
// AXGeometryTools.Utilities.reversePaths(ref resPaths);
sp.paths = AXGeometryTools.Utilities.cleanPaths(resPaths, cleanPolygonPrecision);
}
else
{
//Generator2D.transformPolyTree(resPolytree, gener2D.localMatrix);
//if (resPolytree != null && resPolytree.Childs.Count > 0 && Clipper.Orientation(resPolytree.Childs[0].Contour) != srcIsCC)
// AXGeometryTools.Utilities.reversePolyTree(resPolytree);
sp.polyTree = resPolytree;
}
}
// REVERSE
if (sp.reverse)
{
if (sp.polyTree != null)
{
AXGeometryTools.Utilities.reversePolyTree(sp.polyTree);
}
else if (sp.paths != null && sp.paths.Count > 0)
{
for (int i = 0; i < sp.paths.Count; i++)
{
sp.paths[i].Reverse();
}
}
}
// if (sp.paths != null && sp.paths.Count > 0)
// {
// // SUBDIVISION
// Debug.Log("sp.paths.Count="+sp.paths.Count);
//
// for(int i=0; i<sp.paths.Count; i++)
// {
//
//
// Path path = sp.paths[i];
// Path subdivPath = new Path();
//
// for (int j=0; j<path.Count-1; j++)
// {
// subdivPath.Add(path[j]);
// Vector2 v0 = new Vector2(path[j].X, path[j].Y);
// Vector2 v1 = new Vector2(path[j+1].X, path[j+1].Y);
//
// Debug.Log("["+i+"]["+j+"] " + Vector2.Distance(v0, v1)/10000);
// Vector2 newp = Vector2.Lerp(v0, v1, .5f);
//
// subdivPath.Add(new IntPoint(newp.x, newp.y));
// }
// subdivPath.Add(path[path.Count-1]);
//
//
// sp.paths[i] = subdivPath;
//
// Debug.Log("------------");
// AXGeometryTools.Utilities.printPath(sp.paths[i]);
// }
// // SUBDIVISION ---
// }
//
}