97 lines
4.1 KiB
C++
97 lines
4.1 KiB
C++
#ifndef POLYTOQIMAGE_H
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#define POLYTOQIMAGE_H
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#include <QImage>
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#include <QSvgGenerator>
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#include <QPainter>
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#include <vcg/space/point2.h>
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#include <vcg/space/color4.h>
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#include <vcg/space/box2.h>
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#include <vcg/math/similarity2.h>
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///this class is used to pass global
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///parameters to the polygonal dumper
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class PolyDumperParam
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{
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public:
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/// the backgrround color
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vcg::Color4b backgroundColor;
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/// true if the polygons must be filled with color
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bool fill;
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/// true if the filling color is random
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bool randomColor;
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/// the filling color of polygons, used only if randomColor==false
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vcg::Color4b FillColor;
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/// The size of the font. If zero (default) it is automatically chosen.
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int fontSize;
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/// dimension of the image (in PNG are pixels, while in SVG is the workspace in points)
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int width;
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int height;
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/// DPI resolution, used only for SVG
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int dpi;
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///Handy function for setting the size of the drawing
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void SetSVGDimInMm(float widthMM,float heightMM,float _dpi=72)
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{
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dpi=_dpi;
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float widthInch = float(widthMM / 25.4f);
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float heightInch = float(heightMM / 25.4f);
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width = widthInch * _dpi;
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height = heightInch * _dpi;
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}
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///default constructor
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PolyDumperParam()
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{
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backgroundColor = vcg::Color4b::Gray;
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width=1024;
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height=1024;
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dpi=72;
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fontSize=0;
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fill=false;
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randomColor=true;
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FillColor=vcg::Color4b(0,0,0,255);
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}
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};
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///this class is used to draw polygons on an image could be vectorial or not
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class PolyDumper
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{
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///this class draw a black mask fora given polygon, cenetered and scaled to fit with
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///the image size, it return the transformation to tranform back the polygon to 2D space
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static void DrawPolygonMask(const std::vector< std::vector<vcg::Point2f> > &polyVec,QImage &img,
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vcg::Similarity2f &ret,const vcg::Similarity2f &trans);
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///return the max radius of a point inside a polygon ,given the mask image
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///actually it evaluate the maximum bounding box
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static int getMaxMaskRadius(int x,int y,QImage &img);
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///return the point inside the polygon with the bigger distance to the border,
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///this is used to write labels within the polygon, it handle polygons with holes too
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static vcg::Point2f GetIncenter(const std::vector< std::vector<vcg::Point2f> > &polyVec,
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const vcg::Similarity2f &tra1,int &radius,int resolution=100);
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static void rectSetToPolySet(std::vector< vcg::Box2f > &rectVec, std::vector< std::vector<vcg::Point2f> > &polyVec);
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public:
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///write a polygon on a PNG file, format of the polygon is vector of vector of contours...nested contours are holes
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///takes the name of the image in input, the set of polygons, the set of per polygons transformation,
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///the label to be written and the global parameter for drawing style
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static void dumpPolySetPNG(const char * imageName, std::vector< std::vector< std::vector<vcg::Point2f> > > &polyVecVec,
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std::vector<vcg::Similarity2f> &trVec, std::vector<std::string> &labelVec, PolyDumperParam &pp);
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//write a polygon on a SVG file, format of the polygon is vector of vector of contours...nested contours are holes
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///takes the name of the image in input, the set of polygons, the set of per polygons transformation,
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///the label to be written and the global parameter for drawing style
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static void dumpPolySetSVG(const char * imageName, std::vector< std::vector< std::vector<vcg::Point2f> > > &polyVecVec,
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std::vector<vcg::Similarity2f> &trVec, std::vector<std::string> &labelVec, PolyDumperParam &pp);
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static void dumpPolySetPNG(const char * imageName, std::vector< std::vector< std::vector<vcg::Point2f> > > &polyVecVec,
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std::vector<vcg::Similarity2f> &trVec, PolyDumperParam &pp);
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static void dumpPolySetSVG(const char * imageName, std::vector< std::vector< std::vector<vcg::Point2f> > > &polyVecVec,
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std::vector<vcg::Similarity2f> &trVec, PolyDumperParam &pp);
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static void dumpPolySetPNG(const char * imageName, std::vector< std::vector<vcg::Point2f> > &polyVecVec,
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std::vector<vcg::Similarity2f> &trVec, PolyDumperParam &pp);
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static void dumpPolySetSVG(const char * imageName, std::vector< std::vector<vcg::Point2f> > &polyVecVec,
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std::vector<vcg::Similarity2f> &trVec, PolyDumperParam &pp);
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};
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#endif // POLYTOQIMAGE_H
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