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index ec93d1d9093a17011c8d080e720abd2aefd2e975..2b398ef7c34b4621a221be5fe35bbd5a445004f0 100644 (file)
#include "livarot/Path.h"
#include "livarot/path-description.h"
#include <glib.h>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
/*
* polygon offset and polyline to path reassembling (when using back data)
@@ -522,13 +525,199 @@ Shape::ConvertToFormeNested (Path * dest, int nbP, Path * *orig, int wildPath,in
MakeSweepDestData (false);
}
+
+int
+Shape::MakeTweak (int mode, Shape *a, double power, JoinType join, double miter, bool do_profile, NR::Point c, NR::Point vector, double radius, NR::Matrix *i2doc)
+{
+ Reset (0, 0);
+ MakeBackData(a->_has_back_data);
+
+ bool done_something = false;
+
+ if (power == 0)
+ {
+ _pts = a->_pts;
+ if (numberOfPoints() > maxPt)
+ {
+ maxPt = numberOfPoints();
+ if (_has_points_data) {
+ pData.resize(maxPt);
+ _point_data_initialised = false;
+ _bbox_up_to_date = false;
+ }
+ }
+
+ _aretes = a->_aretes;
+ if (numberOfEdges() > maxAr)
+ {
+ maxAr = numberOfEdges();
+ if (_has_edges_data)
+ eData.resize(maxAr);
+ if (_has_sweep_src_data)
+ swsData.resize(maxAr);
+ if (_has_sweep_dest_data)
+ swdData.resize(maxAr);
+ if (_has_raster_data)
+ swrData.resize(maxAr);
+ if (_has_back_data)
+ ebData.resize(maxAr);
+ }
+ return 0;
+ }
+ if (a->numberOfPoints() <= 1 || a->numberOfEdges() <= 1 || a->type != shape_polygon)
+ return shape_input_err;
+
+ a->SortEdges ();
+
+ a->MakeSweepDestData (true);
+ a->MakeSweepSrcData (true);
+
+ for (int i = 0; i < a->numberOfEdges(); i++)
+ {
+ int stB = -1, enB = -1;
+ if (power <= 0 || mode == tweak_mode_push || mode == tweak_mode_repel || mode == tweak_mode_roughen) {
+ stB = a->CyclePrevAt (a->getEdge(i).st, i);
+ enB = a->CycleNextAt (a->getEdge(i).en, i);
+ } else {
+ stB = a->CycleNextAt (a->getEdge(i).st, i);
+ enB = a->CyclePrevAt (a->getEdge(i).en, i);
+ }
+
+ NR::Point stD, seD, enD;
+ double stL, seL, enL;
+ stD = a->getEdge(stB).dx;
+ seD = a->getEdge(i).dx;
+ enD = a->getEdge(enB).dx;
+
+ stL = sqrt (dot(stD,stD));
+ seL = sqrt (dot(seD,seD));
+ enL = sqrt (dot(enD,enD));
+ MiscNormalize (stD);
+ MiscNormalize (enD);
+ MiscNormalize (seD);
+
+ NR::Point ptP;
+ int stNo, enNo;
+ ptP = a->getPoint(a->getEdge(i).st).x;
+
+ NR::Point to_center = ptP * (*i2doc) - c;
+ NR::Point to_center_normalized = (1/NR::L2(to_center)) * to_center;
+
+ double this_power;
+ if (do_profile && i2doc) {
+ double alpha = 1;
+ double x;
+ if (mode == tweak_mode_repel) {
+ x = (NR::L2(to_center)/radius);
+ } else {
+ x = (NR::L2(ptP * (*i2doc) - c)/radius);
+ }
+ if (x > 1) {
+ this_power = 0;
+ } else if (x <= 0) {
+ if (mode == tweak_mode_repel) {
+ this_power = 0;
+ } else {
+ this_power = power;
+ }
+ } else {
+ this_power = power * (0.5 * cos (M_PI * (pow(x, alpha))) + 0.5);
+ }
+ } else {
+ if (mode == tweak_mode_repel) {
+ this_power = 0;
+ } else {
+ this_power = power;
+ }
+ }
+
+ if (this_power != 0)
+ done_something = true;
+
+ double scaler = 1 / (*i2doc).expansion();
+
+ NR::Point this_vec(0,0);
+ if (mode == tweak_mode_push) {
+ NR::Matrix tovec (*i2doc);
+ tovec[4] = tovec[5] = 0;
+ tovec = tovec.inverse();
+ this_vec = this_power * (vector * tovec) ;
+ } else if (mode == tweak_mode_repel) {
+ this_vec = this_power * scaler * to_center_normalized;
+ } else if (mode == tweak_mode_roughen) {
+ double angle = g_random_double_range(0, 2*M_PI);
+ this_vec = g_random_double_range(0, 1) * this_power * scaler * NR::Point(sin(angle), cos(angle));
+ }
+
+ int usePathID=-1;
+ int usePieceID=0;
+ double useT=0.0;
+ if ( a->_has_back_data ) {
+ if ( a->ebData[i].pathID >= 0 && a->ebData[stB].pathID == a->ebData[i].pathID && a->ebData[stB].pieceID == a->ebData[i].pieceID
+ && a->ebData[stB].tEn == a->ebData[i].tSt ) {
+ usePathID=a->ebData[i].pathID;
+ usePieceID=a->ebData[i].pieceID;
+ useT=a->ebData[i].tSt;
+ } else {
+ usePathID=a->ebData[i].pathID;
+ usePieceID=0;
+ useT=0;
+ }
+ }
+
+ if (mode == tweak_mode_push || mode == tweak_mode_repel || mode == tweak_mode_roughen) {
+ Path::DoLeftJoin (this, 0, join, ptP+this_vec, stD+this_vec, seD+this_vec, miter, stL, seL,
+ stNo, enNo,usePathID,usePieceID,useT);
+ a->swsData[i].stPt = enNo;
+ a->swsData[stB].enPt = stNo;
+ } else {
+ if (power > 0) {
+ Path::DoRightJoin (this, this_power * scaler, join, ptP, stD, seD, miter, stL, seL,
+ stNo, enNo,usePathID,usePieceID,useT);
+ a->swsData[i].stPt = enNo;
+ a->swsData[stB].enPt = stNo;
+ } else {
+ Path::DoLeftJoin (this, -this_power * scaler, join, ptP, stD, seD, miter, stL, seL,
+ stNo, enNo,usePathID,usePieceID,useT);
+ a->swsData[i].stPt = enNo;
+ a->swsData[stB].enPt = stNo;
+ }
+ }
+ }
+
+ if (power < 0 || mode == tweak_mode_push || mode == tweak_mode_repel || mode == tweak_mode_roughen)
+ {
+ for (int i = 0; i < numberOfEdges(); i++)
+ Inverse (i);
+ }
+
+ if ( _has_back_data ) {
+ for (int i = 0; i < a->numberOfEdges(); i++)
+ {
+ int nEd=AddEdge (a->swsData[i].stPt, a->swsData[i].enPt);
+ ebData[nEd]=a->ebData[i];
+ }
+ } else {
+ for (int i = 0; i < a->numberOfEdges(); i++)
+ {
+ AddEdge (a->swsData[i].stPt, a->swsData[i].enPt);
+ }
+ }
+
+ a->MakeSweepSrcData (false);
+ a->MakeSweepDestData (false);
+
+ return (done_something? 0 : shape_nothing_to_do);
+}
+
+
// offsets
// take each edge, offset it, and make joins with previous at edge start and next at edge end (previous and
// next being with respect to the clockwise order)
// you gotta be very careful with the join, as anything but the right one will fuck everything up
// see PathStroke.cpp for the "right" joins
int
-Shape::MakeOffset (Shape * a, double dec, JoinType join, double miter, bool do_profile, double cx, double cy, double radius)
+Shape::MakeOffset (Shape * a, double dec, JoinType join, double miter, bool do_profile, double cx, double cy, double radius, NR::Matrix *i2doc)
{
Reset (0, 0);
MakeBackData(a->_has_back_data);
@@ -606,9 +795,9 @@ Shape::MakeOffset (Shape * a, double dec, JoinType join, double miter, bool do_p
ptP = a->getPoint(a->getEdge(i).st).x;
double this_dec;
- if (do_profile) {
+ if (do_profile && i2doc) {
double alpha = 1;
- double x = (NR::L2(ptP - NR::Point(cx,cy))/radius);
+ double x = (NR::L2(ptP * (*i2doc) - NR::Point(cx,cy))/radius);
if (x > 1) {
this_dec = 0;
} else if (x <= 0) {
@@ -679,6 +868,8 @@ Shape::MakeOffset (Shape * a, double dec, JoinType join, double miter, bool do_p
return (done_something? 0 : shape_nothing_to_do);
}
+
+
// we found a contour, now reassemble the edges on it, instead of dumping them in the Path "dest" as a
// polyline. since it was a DFS, the precParc and suivParc make a nice doubly-linked list of the edges in
// the contour. the first and last edges of the contour are startBord and curBord