int main(int argc, char **argv) {
if (argc > 1) {
Geom::PathVector originald = Geom::parse_svg_path(&*argv[1]);
Geom::Piecewise<Geom::D2<Geom::SBasis> > originaldpwd2;
for (unsigned int i=0; i < originald.size(); i++) {
originaldpwd2.concat( originald[i].toPwSb() );
}
Geom::PathVector pattern = Geom::parse_svg_path(&*argv[2]);
Geom::Piecewise<Geom::D2<Geom::SBasis> > patternpwd2;
for (unsigned int i=0; i < pattern.size(); i++) {
patternpwd2.concat( pattern[i].toPwSb() );
}
doEffect_pwd2(originaldpwd2, patternpwd2);
}
return 0;
};
int main(int argc, char **argv) {
if (argc > 1) {
SVGPathTestPrinter sink;
Geom::parse_svg_path(&*argv[1], sink);
std::cout << "Try real pathsink:" << std::endl;
Geom::PathVector testpath = Geom::parse_svg_path(&*argv[1]);
std::cout << "Geom::PathVector length: " << testpath.size() << std::endl;
if ( !testpath.empty() )
std::cout << "Path curves: " << testpath.front().size() << std::endl;
std::cout << "success!" << std::endl;
}
return 0;
};
/*
* interpolate path_in[0] to path_in[1]
*/
Geom::PathVector
LPEInterpolate::doEffect_path (Geom::PathVector const & path_in)
{
if ( (path_in.size() < 2) || (number_of_steps < 2)) {
return path_in;
}
// Don't allow empty path parameter:
if ( trajectory_path.get_pathvector().empty() ) {
return path_in;
}
Geom::PathVector path_out;
Geom::Piecewise<Geom::D2<Geom::SBasis> > pwd2_A = path_in[0].toPwSb();
Geom::Piecewise<Geom::D2<Geom::SBasis> > pwd2_B = path_in[1].toPwSb();
// Transform both paths to (0,0) midpoint, so they can easily be positioned along interpolate_path
if (Geom::OptRect bounds = Geom::bounds_exact(pwd2_A)) {
pwd2_A -= bounds->midpoint();
}
if (Geom::OptRect bounds = Geom::bounds_exact(pwd2_B)) {
pwd2_B -= bounds->midpoint();
}
// Make sure both paths have the same number of segments and cuts at the same locations
pwd2_B.setDomain(pwd2_A.domain());
Geom::Piecewise<Geom::D2<Geom::SBasis> > pA = Geom::partition(pwd2_A, pwd2_B.cuts);
Geom::Piecewise<Geom::D2<Geom::SBasis> > pB = Geom::partition(pwd2_B, pwd2_A.cuts);
Geom::Piecewise<Geom::D2<Geom::SBasis> > trajectory = trajectory_path.get_pathvector()[0].toPwSb();
if (equidistant_spacing)
trajectory = Geom::arc_length_parametrization(trajectory);
Geom::Interval trajectory_domain = trajectory.domain();
for (int i = 0; i < number_of_steps; ++i) {
double fraction = i / (number_of_steps-1);
Geom::Piecewise<Geom::D2<Geom::SBasis> > pResult = pA*(1-fraction) + pB*fraction;
pResult += trajectory.valueAt(trajectory_domain.min() + fraction*trajectory_domain.extent());
Geom::PathVector pathv = Geom::path_from_piecewise(pResult, LPE_CONVERSION_TOLERANCE);
path_out.push_back( pathv[0] );
}
return path_out;
}
void
KnotHolderEntityAttachPt::knot_set(Geom::Point const &p, Geom::Point const &/*origin*/, guint state)
{
using namespace Geom;
LPETangentToCurve* lpe = dynamic_cast<LPETangentToCurve *>(_effect);
Geom::Point const s = snap_knot_position(p, state);
// FIXME: There must be a better way of converting the path's SPCurve* to pwd2.
SPCurve *curve = SP_PATH(item)->get_curve_for_edit();
Geom::PathVector pathv = curve->get_pathvector();
Piecewise<D2<SBasis> > pwd2;
for (unsigned int i=0; i < pathv.size(); i++) {
pwd2.concat(pathv[i].toPwSb());
}
double t0 = nearest_point(s, pwd2);
lpe->t_attach.param_set_value(t0);
// FIXME: this should not directly ask for updating the item. It should write to SVG, which triggers updating.
sp_lpe_item_update_patheffect (SP_LPE_ITEM(item), false, true);
}
Geom::PathVector
LPEMirrorSymmetry::doEffect_path (Geom::PathVector const & path_in)
{
// Don't allow empty path parameter:
if ( reflection_line.get_pathvector().empty() ) {
return path_in;
}
Geom::PathVector path_out;
if (!discard_orig_path) {
path_out = path_in;
}
Geom::PathVector mline(reflection_line.get_pathvector());
Geom::Point A(mline.front().initialPoint());
Geom::Point B(mline.back().finalPoint());
Geom::Affine m1(1.0, 0.0, 0.0, 1.0, A[0], A[1]);
double hyp = Geom::distance(A, B);
double c = (B[0] - A[0]) / hyp; // cos(alpha)
double s = (B[1] - A[1]) / hyp; // sin(alpha)
Geom::Affine m2(c, -s, s, c, 0.0, 0.0);
Geom::Affine sca(1.0, 0.0, 0.0, -1.0, 0.0, 0.0);
Geom::Affine m = m1.inverse() * m2;
m = m * sca;
m = m * m2.inverse();
m = m * m1;
for (int i = 0; i < static_cast<int>(path_in.size()); ++i) {
path_out.push_back(path_in[i] * m);
}
return path_out;
}
static void spdc_check_for_and_apply_waiting_LPE(FreehandBase *dc, SPItem *item, SPCurve *curve)
{
using namespace Inkscape::LivePathEffect;
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
if (item && SP_IS_LPE_ITEM(item)) {
bool simplify = prefs->getInt(tool_name(dc) + "/simplify", 0);
if(simplify){
double tol = prefs->getDoubleLimited("/tools/freehand/pencil/tolerance", 10.0, 1.0, 100.0);
tol = tol/(100.0*(102.0-tol));
std::ostringstream ss;
ss << tol;
spdc_apply_simplify(ss.str(), dc, item);
sp_lpe_item_update_patheffect(SP_LPE_ITEM(item), false, false);
}
if (prefs->getInt(tool_name(dc) + "/freehand-mode", 0) == 1) {
Effect::createAndApply(SPIRO, dc->desktop->doc(), item);
}
if (prefs->getInt(tool_name(dc) + "/freehand-mode", 0) == 2) {
Effect::createAndApply(BSPLINE, dc->desktop->doc(), item);
}
SPShape *sp_shape = dynamic_cast<SPShape *>(item);
if (sp_shape) {
curve = sp_shape->getCurve();
}
//Store the clipboard path to apply in the future without the use of clipboard
static Geom::PathVector previous_shape_pathv;
shapeType shape = (shapeType)prefs->getInt(tool_name(dc) + "/shape", 0);
bool shape_applied = false;
SPCSSAttr *css_item = sp_css_attr_from_object(item, SP_STYLE_FLAG_ALWAYS);
const char *cstroke = sp_repr_css_property(css_item, "stroke", "none");
static SPItem *bend_item;
#define SHAPE_LENGTH 10
#define SHAPE_HEIGHT 10
if(shape == LAST_APPLIED){
shape = previous_shape_type;
if(shape == CLIPBOARD || shape == BEND_CLIPBOARD){
shape = LAST_APPLIED;
}
}
switch (shape) {
case NONE:
// don't apply any shape
break;
case TRIANGLE_IN:
{
// "triangle in"
std::vector<Geom::Point> points(1);
points[0] = Geom::Point(0., SHAPE_HEIGHT/2);
spdc_apply_powerstroke_shape(points, dc, item);
shape_applied = true;
break;
}
case TRIANGLE_OUT:
{
// "triangle out"
guint curve_length = curve->get_segment_count();
std::vector<Geom::Point> points(1);
points[0] = Geom::Point((double)curve_length, SHAPE_HEIGHT/2);
spdc_apply_powerstroke_shape(points, dc, item);
shape_applied = true;
break;
}
case ELLIPSE:
{
// "ellipse"
SPCurve *c = new SPCurve();
const double C1 = 0.552;
c->moveto(0, SHAPE_HEIGHT/2);
c->curveto(0, (1 - C1) * SHAPE_HEIGHT/2, (1 - C1) * SHAPE_LENGTH/2, 0, SHAPE_LENGTH/2, 0);
c->curveto((1 + C1) * SHAPE_LENGTH/2, 0, SHAPE_LENGTH, (1 - C1) * SHAPE_HEIGHT/2, SHAPE_LENGTH, SHAPE_HEIGHT/2);
c->curveto(SHAPE_LENGTH, (1 + C1) * SHAPE_HEIGHT/2, (1 + C1) * SHAPE_LENGTH/2, SHAPE_HEIGHT, SHAPE_LENGTH/2, SHAPE_HEIGHT);
c->curveto((1 - C1) * SHAPE_LENGTH/2, SHAPE_HEIGHT, 0, (1 + C1) * SHAPE_HEIGHT/2, 0, SHAPE_HEIGHT/2);
c->closepath();
spdc_paste_curve_as_freehand_shape(c->get_pathvector(), dc, item);
c->unref();
shape_applied = true;
break;
}
case CLIPBOARD:
{
// take shape from clipboard;
Inkscape::UI::ClipboardManager *cm = Inkscape::UI::ClipboardManager::get();
if(cm->paste(SP_ACTIVE_DESKTOP,true) == true){
SPItem * pasted_clipboard = dc->selection->singleItem();
if(pasted_clipboard){
Inkscape::XML::Node *pasted_clipboard_root = pasted_clipboard->getRepr();
Inkscape::XML::Node *path = sp_repr_lookup_name(pasted_clipboard_root, "svg:path", -1); // unlimited search depth
if ( path != NULL ) {
gchar const *svgd = path->attribute("d");
dc->selection->remove(SP_OBJECT(pasted_clipboard));
previous_shape_pathv = sp_svg_read_pathv(svgd);
previous_shape_pathv *= pasted_clipboard->transform;
spdc_paste_curve_as_freehand_shape(previous_shape_pathv, dc, item);
shape = CLIPBOARD;
shape_applied = true;
pasted_clipboard->deleteObject();
} else {
shape = NONE;
}
} else {
shape = NONE;
}
} else {
shape = NONE;
}
break;
}
case BEND_CLIPBOARD:
{
Inkscape::UI::ClipboardManager *cm = Inkscape::UI::ClipboardManager::get();
if(cm->paste(SP_ACTIVE_DESKTOP,true) == true){
gchar const *svgd = item->getRepr()->attribute("d");
bend_item = dc->selection->singleItem();
if(bend_item){
bend_item->moveTo(item,false);
bend_item->transform.setTranslation(Geom::Point());
spdc_apply_bend_shape(svgd, dc, bend_item);
dc->selection->add(SP_OBJECT(bend_item));
shape = BEND_CLIPBOARD;
} else {
shape = NONE;
}
} else {
shape = NONE;
}
break;
}
case LAST_APPLIED:
{
if(previous_shape_type == CLIPBOARD){
if(previous_shape_pathv.size() != 0){
spdc_paste_curve_as_freehand_shape(previous_shape_pathv, dc, item);
shape_applied = true;
shape = CLIPBOARD;
} else{
shape = NONE;
}
} else {
if(bend_item != NULL && bend_item->getRepr() != NULL){
gchar const *svgd = item->getRepr()->attribute("d");
dc->selection->add(SP_OBJECT(bend_item));
sp_selection_duplicate(dc->desktop);
dc->selection->remove(SP_OBJECT(bend_item));
bend_item = dc->selection->singleItem();
if(bend_item){
bend_item->moveTo(item,false);
Geom::Coord expansion_X = bend_item->transform.expansionX();
Geom::Coord expansion_Y = bend_item->transform.expansionY();
bend_item->transform = Geom::Affine(1,0,0,1,0,0);
bend_item->transform.setExpansionX(expansion_X);
bend_item->transform.setExpansionY(expansion_Y);
spdc_apply_bend_shape(svgd, dc, bend_item);
dc->selection->add(SP_OBJECT(bend_item));
shape = BEND_CLIPBOARD;
} else {
shape = NONE;
}
} else {
shape = NONE;
}
}
break;
}
default:
break;
}
previous_shape_type = shape;
if (shape_applied) {
// apply original stroke color as fill and unset stroke; then return
SPCSSAttr *css = sp_repr_css_attr_new();
if (!strcmp(cstroke, "none")){
sp_repr_css_set_property (css, "fill", "black");
} else {
sp_repr_css_set_property (css, "fill", cstroke);
}
sp_repr_css_set_property (css, "stroke", "none");
sp_desktop_apply_css_recursive(item, css, true);
sp_repr_css_attr_unref(css);
return;
}
if (dc->waiting_LPE_type != INVALID_LPE) {
Effect::createAndApply(dc->waiting_LPE_type, dc->desktop->doc(), item);
dc->waiting_LPE_type = INVALID_LPE;
if (SP_IS_LPETOOL_CONTEXT(dc)) {
// since a geometric LPE was applied, we switch back to "inactive" mode
lpetool_context_switch_mode(SP_LPETOOL_CONTEXT(dc), INVALID_LPE);
}
}
if (SP_IS_PEN_CONTEXT(dc)) {
SP_PEN_CONTEXT(dc)->setPolylineMode();
}
}
}
