/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2006 \/)\/ *
* Visual Computing Lab /\/| *
* ISTI - Italian National Research Council | *
* \ *
* All rights reserved. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
* *
****************************************************************************/
/****************************************************************************
History
$Log: not supported by cvs2svn $
Revision 1.9 2007/07/10 06:58:31 cignoni
added a missing typename
Revision 1.8 2007/07/09 15:36:40 andrenucci
fix bug with exporting of translate plans
Revision 1.7 2007/06/13 09:17:14 andrenucci
Fix problem with scale
Revision 1.5 2007/05/29 10:09:29 cignoni
Added a const (and reformatted)
Revision 1.4 2007/05/21 13:22:40 cignoni
Corrected gcc compiling issues
Revision 1.3 2006/02/16 15:16:51 corsini
Add reference plane support
Revision 1.2 2006/02/15 15:40:06 corsini
Decouple SVG properties and exporter for simmetry with the other exporter
Revision 1.1 2006/02/13 16:18:09 corsini
first working version
****************************************************************************/
#ifndef __VCG_LIB_EXPORTER_SVG
#define __VCG_LIB_EXPORTER_SVG
namespace vcg
{
namespace edge
{
namespace io
{
/**
* SVG Properties.
*
* Support class to set the properties of the SVG exporter.
*/
class SVGProperties
{
// definitions
public:
//! Stroke colors.
enum StrokeColor
{
BLACK, SILVER, GRAY, WHITE,
MAROON, RED, PURPLE, FUCHSIA,
GREEN, LIME, OLIVE, YELLOW,
NAVY, BLUE, TEAL, AQUA
};
//! Stroke linecap types.
enum StrokeLineCap
{
BUTT, ROUND, SQUARE
};
static const int DEFAULT_LINE_WIDTH=2;
//in single-file export make the grid of sessiones
int numCol;
int numRow;
// private data members
private:
// Line width.
int lwidth;
// Stroke color (see StrokeColor).
std::string stroke_color;
// Stroke linecap (see StrokeLineCap).
std::string stroke_linecap;
// Plane where to project the edge mesh.
Plane3d proj;
// Scale of rdrawing respect coordinates of mesh
float scale;
// Dimension of the drawing square
Point2d ViewBox;
int width,height; //Express in cm
// Position of the drawing square
Point2d position;
//Text details
bool showDetails;
//Starting offset
float Xmin, Ymin;
Point2f* minPos;
// construction
public:
SVGProperties()
{
lwidth = DEFAULT_LINE_WIDTH;
const char * DEFAULT_LINE_COLOR = "black";
const char * DEFAULT_LINE_CAP= "round";
stroke_color = DEFAULT_LINE_COLOR;
stroke_linecap = DEFAULT_LINE_CAP;
// default projection plane (XZ plane)
Point3d n(0.0, 1.0, 0.0);
proj.SetDirection(n);
proj.SetOffset(0.0);
scale=0; //scale=0 it means expanded to the boards of the canvas
ViewBox=Point2d(1000, 1000);
position=Point2d(0, 0);
width=10; //width of the windows
height=10; //height of the windows
showDetails=true;
Xmin=0;
Ymin=0;
minPos= new Point2f(0,0);
}
// public methods
public:
//! Set the line width.
void setLineWidth(int width)
{
lwidth = width;
}
//! Set the stroke color.
void setColor(enum StrokeColor color)
{
switch (color)
{
case BLACK : stroke_color = "black"; break;
case SILVER : stroke_color = "silver"; break;
case GRAY : stroke_color = "gray"; break;
case WHITE : stroke_color = "white"; break;
case MAROON : stroke_color = "maroon"; break;
case RED : stroke_color = "red"; break;
case PURPLE : stroke_color = "purple"; break;
case FUCHSIA: stroke_color = "fuchsia"; break;
case GREEN : stroke_color = "green"; break;
case OLIVE : stroke_color = "olive"; break;
case LIME : stroke_color = "lime"; break;
case NAVY : stroke_color = "navy"; break;
case TEAL : stroke_color = "teal"; break;
case AQUA : stroke_color = "aqua"; break;
default: assert(0);
}
}
//! Set the line cap style.
void setLineCap(enum StrokeLineCap linecap)
{
if (linecap == BUTT) stroke_linecap = "butt";
else if (linecap == ROUND) stroke_linecap = "round";
else if (linecap == SQUARE) stroke_linecap = "square";
}
void setPlane(double distance, const Point3d &direction)
{
proj.SetDirection(direction);
proj.SetOffset(distance);
}
void setScale(float x){ scale=x; } //Define the scale between 2d coordinate and mesh
void setViewBox(Point2d x) { ViewBox=x; }//Define the dimension of the square
void setPosition(Point2d x) { position=x;}//Define the starting position of the canvas
void setTextDetails(bool x){showDetails=x;}
void setDimension(int width, int height){ this->width=width; this->height=height;}
// accessors
public:
int lineWidth(){return lwidth;}
const char * lineColor(){return stroke_color.c_str();}
const char * lineCapStyle(){return stroke_linecap.c_str();}
const Plane3d * projPlane(){return &proj;}
float getScale(){return scale;}
Point2d getViewBox(){return ViewBox;}
Point2d getPosition(){return position;}
int getWidth(){return width;}
bool showTextDetails(){return showDetails;}
int getHeight(){return height;}
void setMinPoint(Point2f* p){
minPos = p;
}
Point2f* getminPoint(){return (minPos);}
};
/**
* SVG exporter.
*
* This exporter save a mesh of EdgeMesh type in the SVG format.
* Most of the features of the SVG format are not supported.
* The given EdgeMesh is saved as a set lines. The properties
* of the SVG export can be set through the SVGProp class.
*/
template <class EdgeMeshType>
class ExporterSVG
{
public:
//! Save with the default SVG properties.
static bool Save(EdgeMeshType *mp, const char *filename)
{
SVGProperties properties;
return Save(mp, filename, properties);
}
static bool Save(vector<EdgeMeshType*> *vp, const char *filename, SVGProperties & pro){
//Function that export a vector of EdgeMesh in an unic single SVG file.
FILE * o = fopen(filename,"w");
if (o==NULL)
return false;
int num = (*vp).size(); //number of square to draw
WriteXmlHead(o,pro.getWidth(),pro.getHeight(),pro.getViewBox(),Point2d(0,0));
float scale= pro.getScale();
typename std::vector<EdgeMeshType*>::iterator it;
int i=0;
Point2f pmin(100000000.0f, 100000000.0f);
for(it=(*vp).begin(); it!=(*vp).end(); it++){
EdgeMeshType* ed;
ed=(*it);
Save(ed,o,pro, -2);
Point2f* p=pro.getminPoint();
pmin[0]=min(pmin[0], p->X());
pmin[1]=min(pmin[1], p->Y());
}
pro.setMinPoint(new Point2f(pmin[0],pmin[1]));
for(it=(*vp).begin(); it!=(*vp).end(); it++){
EdgeMeshType* ed;
ed=(*it);
pro.setPosition(Point2d((pro.getViewBox().V(0)/pro.numCol)*i,40));
int x=pro.getViewBox().V(0);
int y=pro.getViewBox().V(1);
/*
fprintf(o, "<rect width= \" %d \" height= \" %d \" x=\"%d \" y=\" %d \" style= \" stroke-width:1; fill-opacity:0.0; stroke:rgb(0,0,0)\" /> \n",x/pro.numCol,y, (x/pro.numCol)*i, 40);
*/
Save(ed,o,pro, i);
if(pro.showTextDetails()){
fprintf(o,"<text x= \" %d \" y= \"30 \" font-family= \"Verdana \" font-size= \"30 \" >\n",(x/pro.numCol)*i);
fprintf(o,"Slice num:%d </text>\n", i);}
i++;
}
fprintf(o, "</svg>");
fclose(o);
return true;
}
//! Save with the given SVG properties.
static bool Save(EdgeMeshType *mp, const char *filename, SVGProperties & props )
{
FILE * o = fopen(filename,"w");
if (o==NULL)
return false;
WriteXmlHead(o, props.getWidth(),props.getHeight(), props.getViewBox(), props.getPosition());
props.setPosition(Point2d(0,40));
Save(mp, o, props, 0);
fprintf(o, "</svg>");
// final xml tags
fclose(o);
return true;
}
static void Save(EdgeMeshType *mp, FILE* o, SVGProperties props, int numSlice)
{
bool preCal=false;
if(numSlice==-2) preCal=true;
// build vector basis (n, v1, v2)
Point3d p1(0.0,0.0,0.0);
Point3d p2(1.0,0.0,0.0);
Point3d p2less(-1.0,0.0,0.0);
Point3d d = props.projPlane()->Direction() - p2;
Point3d dless = props.projPlane()->Direction() - p2less;
Point3d v1;
if ((d.Norm() < 0.5)||(dless.Norm() <0.5))
v1 = Point3d(0.0,0.0,1.0) - p1;
else
v1 = p2 - p1;
v1.Normalize();
Point3d v2 = v1 ^ props.projPlane()->Direction();
//Global points
vector<vector<Point2f> >* glb;
std::vector<Point2f> pts;
pts.clear();
Point2f pmin(100000000.0f, 100000000.0f);
Point2f pmax(-100000000.0f, -100000000.0f);
Point3d bbMin;
typename EdgeMeshType::EdgeIterator i;
for (i = mp->edges.begin(); i != mp->edges.end(); ++i)
{
Point3<typename EdgeMeshType::ScalarType> p1;
Point3<typename EdgeMeshType::ScalarType> p2;
p1 = (*i).V(0)->P();
p2 = (*i).V(1)->P();
Point3d p1d(p1[0], p1[1], p1[2]);
Point3d p2d(p2[0], p2[1], p2[2]);
// Project the line on the reference plane
Point3d p1proj = props.projPlane()->Projection(p1d);
Point3d p2proj = props.projPlane()->Projection(p2d);
// Convert the 3D coordinates of the line to the uv coordinates of the plane
Point2f pt1(static_cast<float>(p1proj * v1), static_cast<float>(p1proj * v2));
Point2f pt2(static_cast<float>(p2proj * v1), static_cast<float>(p2proj * v2));
pts.push_back(pt1);
pts.push_back(pt2);
pmin[0]=math::Min(math::Min(pt1[0],pmin[0]), pt2[0]);
pmin[1]=math::Min(math::Min(pt1[1],pmin[1]), pt2[1]);
pmax[0]=math::Max(math::Max(pt1[0],pmax[0]), pt2[0]);
pmax[1]=math::Max(math::Max(pt1[1],pmax[1]), pt2[1]);
}
//Point2f bbp(static_cast<float>(bbMin * v1), static_cast<float>(bbMin * v2));
if(!preCal){
float scale=props.getScale();
// line settings
Point2d pos=props.getPosition();
fprintf(o, " <g stroke=\"%s\" stroke-linecap=\"%s\" > \n",
props.lineColor(), props.lineCapStyle());
float maxEdges= math::Max((pmax[0]-pmin[0]), (pmax[1]-pmin[1]));
if (numSlice==0)
Draw_proportions_scale(o,maxEdges, props);
fprintf(o, "<svg id = \" %d \">\n", numSlice );
int x=props.getViewBox().V(0);
int y=props.getViewBox().V(1);
fprintf(o, "<rect width= \" %d \" height= \" %d \" x=\"%d \" y=\" %d \" style= \" stroke-width:1; fill-opacity:0.0; stroke:rgb(0,0,0)\" /> \n",x/props.numCol,y, (x/props.numCol)*numSlice, 40);
std::vector<Point2f>::iterator itPoints;
for(itPoints = pts.begin(); itPoints != pts.end(); ++itPoints)
{
Point2f p1 = *itPoints;
++itPoints;
Point2f p2 = *itPoints;
if(numSlice==0){
fprintf(o, " <line x1=\"%f\" y1=\"%f\" x2=\"%f\" y2=\"%f\" \n",
pos.X()+((p1[0]-pmin[0]) * scale), pos.Y()+((p1[1]-pmin[1]) * scale),
pos.X()+((p2[0]-pmin[0]) * scale), pos.Y()+((p2[1]-pmin[1]) * scale ));
fprintf(o, " stroke-width = \"%d\" ",props.lineWidth());
fprintf(o, "/>\n");
}
else{
fprintf(o, " <line x1=\"%f\" y1=\"%f\" x2=\"%f\" y2=\"%f\" \n",
pos.X()+((p1[0]-props.getminPoint()->X()) * scale), pos.Y()+((p1[1]-props.getminPoint()->Y()) * scale),
pos.X()+((p2[0]-props.getminPoint()->X()) * scale), pos.Y()+((p2[1]-props.getminPoint()->Y()) * scale ));
fprintf(o, " stroke-width = \"%d\" ",props.lineWidth());
fprintf(o, "/>\n");}
}
fprintf(o, "</svg>");
fprintf(o, " </g>\n");
}
else{
Point2f* p=props.getminPoint();
p->X()=pmin[0];
p->Y()=pmin[1];
props.setMinPoint(p);
}
}
private:
static void Draw_proportions_scale(FILE *o, float maxEdge,SVGProperties & prop){
if(prop.showTextDetails()){
int num_order=log10(maxEdge);
int pox= pow(10.0, num_order);
int assX=prop.getViewBox()[0];
int assY=prop.getViewBox()[1];
int nullAss=0;
int OffsetXAs=50;
float comput= OffsetXAs+(pox*prop.getScale());
fprintf(o, " <line x1=\" %d \" y1=\" %d \" x2=\" %f \" y2=\" %d \" \n",(nullAss+OffsetXAs ),(assY+50),comput, (assY+50) );
fprintf(o, " stroke-width = \"5\" ");
fprintf(o, "/>\n");
fprintf(o,"<text x= \" %d \" y= \" %d \" font-family= \"Verdana \" font-size= \"25 \" >",(nullAss+OffsetXAs), (assY+80));
fprintf(o,"%d px -- Scale %f : 1 </text>", pox ,prop.getScale());
}
}
static void WriteXmlHead(FILE *o,int width, int height, Point2d viewBox, Point2d position){
int Vx=viewBox[0];
int Vy=viewBox[1];
// initial xml tags
fprintf(o, "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n");
fprintf(o, "<!-- Created with vcg library -->\n");
fprintf(o, "<svg width=\"%d cm\" height=\"%d cm\" viewBox=\"0 0 %d %d \" \n",width, height, Vx, Vy+100);
fprintf(o, " xmlns:dc=\"http://purl.org/dc/elements/1.1/\" \n");
fprintf(o, " xmlns:cc=\"http://web.resource.org/cc/\" \n");
fprintf(o, " xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\" \n");
fprintf(o, " xmlns:svg=\"http://www.w3.org/2000/svg\" \n");
fprintf(o, " xmlns=\"http://www.w3.org/2000/svg\" \n");
fprintf(o, " id=\"svg2\"> \n");
fprintf(o, " <defs id=\"defs4\"/> \n");
fprintf(o, " <metadata id=\"metadata7\"> \n");
fprintf(o, " <rdf:RDF> \n");
fprintf(o, " <cc:Work rdf:about=\"\"> \n");
fprintf(o, " <dc:format>image/svg+xml</dc:format> \n");
fprintf(o, " <dc:type rdf:resource=\"http://purl.org/dc/dcmitype/StillImage\" /> \n");
fprintf(o, " </cc:Work> \n");
fprintf(o, " </rdf:RDF> \n");
fprintf(o, " </metadata> \n");
}
};
}; // namespace io
}; // namespace edge
}; // namespace vcg
#endif // __VCG_LIB_EXPORTER_SVG